MediaAlpha (MAX) 424B4Prospectus supplement with pricing info

The information contained in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell and are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

Subject to Completion, dated March 7, 2024

Preliminary Prospectus Supplement

(To Prospectus dated December 22, 2023)

3,000,000 Shares

None of we, the selling stockholders or any underwriter has authorized anyone to provide any information or make any representations other than that contained or incorporated by reference in this prospectus supplement, the accompanying prospectus or in any free writing prospectus prepared by or on behalf of us or the selling stockholders. None of we, the selling stockholders or any underwriter take responsibility for, or can provide assurance as to the reliability of, any other information that others may give you. This prospectus supplement and the accompanying prospectus is an offer to sell only the Class A common stock offered hereby, but only under circumstances and in jurisdictions where it is lawful to do so. The information contained in this prospectus supplement, the accompanying prospectus, any free writing prospectus or any document incorporated by reference herein or therein is current only as of its date. Our business, financial condition, results of operations and prospects may have changed since that date.

No action is being taken in any jurisdiction outside the United States to permit a public offering of our Class A common stock or possession or distribution of this prospectus supplement in that jurisdiction. Persons who come into possession of this prospectus supplement in jurisdictions outside the United States are required to inform themselves about and to observe any restrictions as to this offering and the distribution of this prospectus supplement applicable to that jurisdiction.

Glossary

As used in this prospectus supplement:

About this prospectus supplement

This document consists of two parts. The first part is this prospectus supplement, which describes the specific terms of the offering. The second part is the accompanying prospectus, which describes more general information, some of which may not apply to the offering. You should read both this prospectus supplement and the accompanying prospectus, together with additional information described under the headings “Where You Can Find More Information” and “Incorporation by Reference” in this prospectus supplement. To the extent there is a conflict between the information contained in this prospectus supplement and the information contained in the accompanying prospectus or the information contained in any document incorporated by reference herein or therein, you should rely on the information in this prospectus supplement. In addition, any statement in a filing we make with the SEC, that adds to, updates or changes information contained in an earlier filing we made with the SEC shall be deemed to modify and supersede such information in the earlier filing.

As used in this prospectus supplement, unless the context otherwise indicates, any reference to “MediaAlpha,” “our Company,” the “Company,” “we,” “us,” and “our” refers to MediaAlpha, Inc., the issuer of the shares offered hereby, together with its consolidated subsidiaries. QL Holdings LLC is the predecessor to MediaAlpha.

This prospectus supplement and the accompanying prospectus dated December 22, 2023 are part of a registration statement on Form S-3 that we filed with the SEC using a “shelf” registration process. This prospectus supplement relates to the offering of shares of our Class A common stock by the selling stockholders identified herein.

Cautionary statement regarding forward-looking statements

Certain statements made in this prospectus supplement, the accompanying prospectus and the documents incorporated herein and therein by reference and in other written or oral statements made by us or on our behalf are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect our current views with respect to, among other things, future events and our financial performance. These statements are often, but not always, made through the use of words or phrases such as “may,” “should,” “could,” “predict,” “potential,” “believe,” “will likely result,” “expect,” “continue,” “will,” “anticipate,” “seek,” “estimate,” “intend,” “plan,” “projection,” “would,” and “outlook,” or the negative version of those words or other comparable words or phrases of a future or forward-looking nature. These forward-looking statements are not historical facts, and are based on current expectations, estimates and projections about our industry, management’s beliefs and certain assumptions made by management, many of which, by their nature, are inherently uncertain and beyond our control. Accordingly, we caution you that any such forward-looking statements are not guarantees of future performance and are subject to risks, assumptions and uncertainties that are difficult to predict. Although we believe that the expectations reflected in these forward-looking statements are reasonable as of the date made, actual results may prove to be materially different from the results expressed or implied by the forward-looking statements.

There are or will be important factors that could cause our actual results to differ materially from those indicated in these forward-looking statements, including, but not limited to, the following:

The foregoing factors should not be construed as exhaustive and should be read together with the other cautionary statements included in this prospectus supplement, the accompanying prospectus, including the risks and uncertainties discussed under “Risk Factors” and the documents incorporated by reference herein and therein. If one or more events related to these or other risks or uncertainties materialize, or if our underlying assumptions prove to be incorrect, actual results may differ materially from what we anticipate. Many of the important factors that will determine these results are beyond our ability to control or predict. Accordingly, you should not place undue reliance on any such forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made, and, except as otherwise required by law, we do not undertake any obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise. New factors emerge from time to time, and it is not possible for us to predict which will arise. In addition, we cannot assess the impact of each factor on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

Risk factors

The market price of our Class A common stock has been highly volatile, which may make it difficult for you to sell your shares at the volume, prices and times desired. Shares of technology companies have historically experienced levels of volatility that can exceed the overall market. Since shares of our Class A common stock were initially sold in the IPO in October 2020 at a price of $19.00 per share, the low and high closing sales prices of our Class A common stock ranged from $5.36 to $64.11 per share, respectively, through March 6, 2024.

Some specific factors that may have a significant effect on the market price of our Class A common stock include:

In particular, we cannot assure you that you will be able to resell your shares at or above the public offering price. This volatility may be increased due to the limited trading volume in our Class A common stock. Our Class A common stock is traded on the NYSE, and despite certain increases of trading volume from time to time, there have been periods when our Class A common stock could be considered thinly-traded, meaning that the number of persons interested in purchasing or selling our Class A common stock at or near the current market price at any given time may be relatively small. This increases the potential for increases in the level of buying or selling interest to have a greater impact on the market price of our Class A common stock. In addition, the lack of a robust resale market may require a stockholder who desires to sell a large number of shares of our Class A common stock to sell the shares in increments over time to mitigate any adverse impact of the sales on the market price of our stock.

In the future, we may issue additional stock, including as grants of equity awards to employees, directors and consultants under our equity incentive plans, to raise capital through equity financings or to acquire or make investments in companies, products or technologies for which we may issue equity securities to pay for such acquisition or investment. Any such issuances of additional capital stock may cause stockholders to experience significant dilution of their ownership interests and the per share value of our Class A common stock to decline.

The declaration and amount of any future dividends to holders of our Class A common stock is at the discretion of our Board of Directors in accordance with applicable law and after taking into account various factors, including our financial condition, operating results, current and anticipated cash needs, cash flows, impact on our effective tax rate, indebtedness, contractual obligations, legal requirements, and other factors that our Board of Directors deems relevant. In addition, the Amended Credit Agreement contains restrictions on our ability to pay dividends, subject to certain exceptions. Accordingly, we do not expect to pay dividends in the foreseeable future. As a result, capital appreciation, if any, of our Class A common stock will be your sole source of gain for the foreseeable future.

The market price of our Class A common stock could decline as a result of sales of a large number of shares of our Class A common stock by our pre-IPO stockholders following this offering, including shares issuable upon the exchange of Class B-1 units (together with an equal number of shares of our Class B common stock). The perception in the public market that our pre-IPO stockholders might sell shares of Class A common stock could also depress our market price.

As of February 29, 2024, 47.8 million Class A-1 units and 18.1 million Class B-1 units were outstanding. Each Class B-1 unit, together with one share of our Class B common stock, is exchangeable for one share of Class A common stock (or, at our election, cash of an equivalent value). Substantially all of such shares may be resold at any time, subject in certain cases to compliance with Rule 144 under the Securities Act of 1933, as amended (the “Securities Act”).

In November 2021, pursuant to a registration rights agreement with certain of our existing investors, including White Mountains, Insignia, and the Senior Executives, we registered certain of their shares of our Class A common stock, including those delivered in exchange for Class B-1 units, for resale, of which 34.3 million shares remained registered and available for sale as of November 30, 2023. These sales (including those made pursuant to this offering), or the possibility that these sales may occur, may also make it more difficult for us to raise additional capital in the future by selling shares of our Class A common stock or other equity securities at a time and price that we deem appropriate.

The selling stockholders have entered into lock-up agreements with the underwriters under which they have agreed, not to (and not to cause any of their direct or indirect affiliates to) sell their remaining shares following the completion of this offering, subject to certain provisions and exceptions, without the prior written consent of the underwriters, for a period of 45 days after the date of this prospectus supplement. We refer to such period as the lock-up period. When the lock-up period expires, the selling stockholders subject to a lock-up agreement will be able to sell their shares in the public market. In addition, the underwriters may, in their sole discretion, release all or some portion of the shares subject to lock-up agreements at any time and for any reason. Sales of a substantial number of such shares upon expiration of the lock-up agreements, the perception that such sales may occur, or early release of these agreements, could cause our market price to fall or make it more difficult for you to sell your Class A common stock at a time and price that you deem appropriate.

Our amended and restated certificate of incorporation, amended and restated bylaws and stockholders’ agreement contain, and Delaware law contains, provisions that are intended to deter coercive takeover practices and inadequate takeover bids by making such practices or bids unacceptably expensive to the bidder and to encourage prospective

acquirers to negotiate with our Board of Directors rather than to attempt a hostile takeover. Among other things, these provisions:

In addition, Section 203 of the General Corporate Law of the State of Delaware (the “DGCL”) may affect the ability of an “interested stockholder” to engage in certain business combinations, for a period of three years following the time that the stockholder becomes an “interested stockholder.” We elected in our amended and restated certificate of incorporation not to be subject to Section 203 of the DGCL. Nevertheless, our amended and restated certificate of incorporation contains provisions that have the same effect as Section 203 of the DGCL, except that they provide that each of White Mountains, Insignia, and the Founders and their respective affiliates and transferees are not be deemed to be “interested stockholders,” and accordingly will not be subject to such restrictions.

These and other provisions could have the effect of discouraging, delaying or preventing a transaction involving a change in control of our company or could make it more difficult for you and other stockholders to elect directors of your choosing or to cause us to take other corporate actions that you desire. See the section of the accompanying prospectus entitled “Description of capital stock.”

Each of White Mountains, Insignia, and the Founders and their respective affiliates may engage in activities similar to ours or lines of business or have an interest in the same areas of corporate opportunities as we do. Our amended and restated certificate of incorporation and stockholders’ agreement provide that such stockholders and their respective affiliates will not have any duty to refrain from (1) engaging, directly or indirectly, in the same or similar business activities or lines of business as us, including those business activities or lines of business deemed to be competing with us, or (2) doing business with any of our clients, customers or vendors. In the event that White Mountains, Insignia or the Founders or any of their respective affiliates acquires knowledge of a potential business opportunity which may be a corporate opportunity for us, they will have no duty to communicate or offer such corporate opportunity to us. Our amended and restated certificate of incorporation and stockholders’ agreement also provide that, to the fullest extent permitted by law, none of such stockholders or their respective affiliates will be liable to us, for breach of any fiduciary duty or otherwise, by reason of the fact that any such stockholder or any of its affiliates directs such corporate opportunity to another person, or otherwise does not communicate information regarding such corporate opportunity to us, and we will waive and renounce any claim that such business opportunity constituted a corporate opportunity that should have been presented to us. These potential conflicts of interest could have a material and adverse effect on our business, financial condition, operating results, cash flows and prospects if attractive business opportunities are allocated by White Mountains, Insignia or the Founders to themselves or their respective affiliates instead of to us.

Our amended and restated certificate of incorporation provides that unless the Board of Directors otherwise determines, the state courts in the State of Delaware or, if no state court located within the State of Delaware has jurisdiction, the federal court for the District of Delaware, are the sole and exclusive forum for any derivative action or proceeding brought on behalf of us, any action asserting a claim of breach of a fiduciary duty owed by any of our directors or officers to us or our stockholders, any action asserting a claim against us or any of our directors or officers arising pursuant to any provision of the DGCL or our amended and restated certificate of incorporation or amended and restated bylaws, or any action asserting a claim against us or any of our directors or officers governed by the internal affairs doctrine under Delaware law. In addition, our amended and restated certificate of incorporation provides that the federal district courts of the United States are the exclusive forum for resolving any complaint asserting a cause of action arising under the Securities Act but that the forum selection provision will not apply to claims brought to enforce a duty or liability created by the Securities Exchange Act of 1934, as amended (the “Exchange Act”). While the Delaware Supreme Court has upheld provisions of the certificates of incorporation of other Delaware corporations that are similar to this forum provision, and other state and Federal courts have upheld the enforceability of such forum provisions, a court of another state could decide that such provisions are not enforceable under the laws of that state. These exclusive forum provisions may limit the ability of our stockholders to bring a claim in a judicial forum that such stockholders find favorable for disputes with us or our directors or officers, which may discourage such lawsuits against us and our directors and officers. Alternatively, if a court were to find one or more of these exclusive forum provisions inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings described above, we may incur additional costs associated with resolving such matters in other jurisdictions or forums, which could materially and adversely affect our business, financial condition, operating results, cash flows, and prospects. For example, under the Securities Act, federal courts have concurrent jurisdiction over all suits brought to enforce any duty or liability created by the Securities Act, and investors cannot waive compliance with the federal securities laws and the rules and regulations thereunder. Any person or entity purchasing or otherwise acquiring any interest in our Class A common stock shall be deemed to have notice of and consented to this exclusive forum provision, but will not be deemed to have waived our compliance with the federal securities laws and the rules and regulations thereunder.

Our amended and restated bylaws provide that, except to the extent prohibited by the DGCL, and unless our Board of Directors otherwise approves, in the event that any claiming party (a) initiates, asserts, joins, offers substantial assistance to or has a direct financial interest in a covered proceeding and (b) such claiming party does not obtain a

judgment on the merits that substantially achieves, in substance and amount, the full remedy sought by such claiming party, then each such claiming party will be obligated to reimburse us and any applicable director, officer or other employee for all fees, costs, and expenses of every kind and description (including, but not limited to, all attorneys’ fees and other litigation expenses) that we or any such director, officer or other employee actually incurs in connection with the covered proceeding. While application of this standard will necessarily need to take into account the particular facts, circumstances, and equities of any particular claim, we would expect a claiming party to be required to prevail on the merits on substantially all of the claims asserted in the complaint and, as a result, receive substantially the full remedy that it was seeking (including, if applicable, any equitable remedy) in order to avoid responsibility for reimbursing such fees, costs, and expenses. Any person or entity purchasing or otherwise acquiring any interest in the shares of our capital stock will be deemed to have notice of and consented to this provision. This provision could have the effect of discouraging litigation against us, including claims brought by our stockholders and including claims that are partially (but not wholly) successful on the merits. However, it is currently unclear whether the Delaware legislature will take action to eliminate or limit the ability of stock corporations to implement provisions such as this, or whether Delaware courts will enforce in full a provision such as this for a Delaware stock corporation. If the Delaware legislature takes action to limit or eliminate our ability to include this provision in our amended and restated bylaws or a court were to find this provision inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings, we may incur additional costs associated with resolving such matters in other jurisdictions, which could adversely affect our business and financial condition.

For the foreseeable future, we expect that a majority of our Board of Directors will include directors who are affiliated with White Mountains, Insignia, and the Founders. Certain of our pre-IPO stockholders could have business interests that conflict with those of the other investors, which may make it difficult for us to pursue strategic initiatives that require consensus among our owners.

Our relationship with our pre-IPO stockholders could create conflicts of interest among our investors, or between our investors and us, in a number of areas relating to our past and ongoing relationships. In addition, our pre-IPO stockholders may have different tax positions from us which could influence their decisions regarding whether and when to dispose of assets, whether and when to incur new or refinance existing indebtedness, especially in light of the existence of the tax receivables agreement, and whether and when we should terminate the tax receivables agreement and accelerate our obligations thereunder. In addition, the structuring of future transactions may take into consideration these pre-IPO stockholders’ tax or other considerations even where no similar benefit would accrue to us. Except as set forth in the tax receivables agreement and the stockholders’ agreement, there are no formal dispute resolution procedures in place to resolve conflicts between us and our pre-IPO stockholders or among our pre-IPO stockholders. We may not be able to resolve any potential conflicts between us and any pre-IPO stockholders and, even if we do, the resolution may be less favorable to us than if we were negotiating with an unaffiliated party. This concentration of ownership and voting power may also delay, defer or even prevent an acquisition by a third party or other change of control of our company which could deprive you of an opportunity to receive a premium for your shares of Class A common stock and may make some transactions more difficult or impossible without the support of such pre- IPO stockholders, even if such events are in the best interests of minority stockholders. Furthermore, this concentration of voting power may have a negative impact on the price of our Class A common stock.

Pursuant to the stockholders’ agreement, certain of our actions will generally require prior written consent of a majority in interest of White Mountains, Insignia, and the Founders, for so long as such stockholders continue to own at least a majority of the issued and outstanding shares of common stock. Each of White Mountains, Insignia, and the Founders is also entitled to nominate one or two directors to the Board of Directors for so long as such stockholder owns at least 12.5%, in the case of two directors, or less than 12.5% but at least 5%, in the case of one director, of our issued and outstanding shares of common stock as of the closing of our IPO.

Section 203 of the DGCL may affect the ability of an “interested stockholder” to engage in certain business combinations, for a period of three years following the time that the stockholder becomes an “interested stockholder.” We elected in our amended and restated certificate of incorporation not to be subject to Section 203 of the DGCL. Nevertheless, our amended and restated certificate of incorporation contains provisions that have the same effect as Section 203 of the DGCL, except that they provide that each of White Mountains, Insignia, and the Founders and their respective affiliates and transferees are not deemed to be “interested stockholders,” and accordingly are not subject to such restrictions.

In addition, because Insignia and the Founders hold their economic interest in our business indirectly through QLH, but not through MediaAlpha, Inc., these existing owners may have conflicting interests with holders of shares of our Class A common stock.

Certain of our pre-IPO stockholders that are a party to the stockholders’ agreement own a majority of the voting power of our outstanding common stock. Accordingly, we are considered a “controlled company” under the NYSE rules. Under these rules, a “controlled company” may elect not to comply with certain corporate governance requirements, including the requirements that:

We intend to continue to take advantage of certain of these exemptions for so long as we continue to qualify as a “controlled company.” Accordingly, during such time our stockholders may not have the same protections afforded to stockholders of companies that are subject to all of the NYSE corporate governance requirements.

Use of proceeds

We will not receive any of the proceeds from the sale of Class A common stock by the selling stockholders. We will, however, bear the costs associated with the sale of Class A common stock in this offering by the selling stockholders, other than underwriting discounts and commissions. See “Underwriting” and “Selling stockholders.”

Dividend policy

We do not anticipate declaring or paying any cash dividends on our Class A common stock in the foreseeable future. Any future determination to declare and pay cash dividends, if any, will be made at the discretion of our Board of Directors and will depend on a variety of factors, including applicable laws, our financial condition, results of operations, contractual restrictions, capital requirements, business prospects, general business or financial market conditions, and other factors our Board of Directors may deem relevant. In addition, our credit agreement with the lenders that are party thereto and JPMorgan Chase Bank, N.A., as administrative agent contains covenants that restrict QuoteLab, LLC’s and, in turn, our ability to pay cash dividends, subject to certain exceptions. Investors should not purchase our Class A common stock with the expectation of receiving cash dividends.

Our Class B common stock is not entitled to any dividend payments.

Selling stockholders

The following table sets forth (i) the name of each selling stockholder, (ii) the number of shares of Class A common stock (including shares of Class A common stock issuable upon exchange of outstanding Class B-1 units (together with a corresponding number of shares of Class B common stock)) beneficially owned by each selling stockholder as of February 29, 2024, (iii) the number of shares of Class A common stock (including shares of Class A common stock issuable upon exchange of outstanding Class B-1 units (together with a corresponding number of shares of Class B common stock)) offered by each selling stockholder in this offering, and (iv) the number of shares of Class A common stock (including shares of Class A common stock issuable upon exchange of outstanding Class B-1 units (together with a corresponding number of shares of Class B common stock)) beneficially owned by each selling stockholder following the completion of this offering (assuming each selling stockholder sells all of the shares of our Class A common stock covered by this prospectus supplement). The following table also sets forth the percentage of Class A common stock (including shares of Class A common stock issuable upon exchange of outstanding Class B-1 unit (together with a corresponding number of shares of Class B common stock)) beneficially owned by the selling stockholders after giving effect to the sale by the selling stockholders of all shares of our Class A common stock covered by this prospectus supplement, based on 65,814,786 shares of Class A common stock, which includes 47,750,957 shares of Class A common stock outstanding as of February 29, 2024 and assumes the exchange of 18,063,829 Class B-1 units, together with an equal number of our Class B common stock, for an equivalent number of our Class A common stock.

The number of shares beneficially owned by each stockholder is determined under rules of the SEC and includes voting or investment power with respect to our Class A common stock and Class B common stock. Under these rules, beneficial ownership includes any shares as to which the individual or entity has sole or shared voting power or investment power. In computing the number of shares beneficially owned by an individual or entity and the percentage ownership of that person, shares of common stock subject to options, warrants or other rights held by such person that are currently exercisable or will become exercisable within 60 days are considered outstanding, although these shares are not considered outstanding for purposes of computing the percentage ownership of any other person.

To our knowledge, except as described in the section entitled “Selling stockholders—Material Relationships with Selling Stockholders” in the accompanying prospectus and the notes to the following table, the selling stockholders have held no position or office or had any other material relationship with us or any of our affiliates or predecessors during the past three years. Unless otherwise set forth in the footnotes to the table, the address for each listed stockholder is c/o MediaAlpha, Inc., 700 South Flower Street, Suite 640, Los Angeles, California 90017.

Material U.S. federal income tax considerations for Non-U.S. holders of Class A common stock

The following discussion is a summary of the material U.S. federal income tax consequences to Non-U.S. Holders (as defined below) of the purchase, ownership and disposition of our Class A common stock sold pursuant to this offering, but does not purport to be a complete analysis of all potential tax effects. The effects of other U.S. federal tax laws, such as estate and gift tax laws, and any applicable state, local or non-U.S. tax laws are not discussed. This discussion is based on the U.S. Internal Revenue Code of 1986, as amended (the “Code”), Treasury Regulations promulgated thereunder, judicial decisions, and published rulings and administrative pronouncements of the Internal Revenue Service (the “IRS”), in each case in effect as of the date hereof. These authorities may change or be subject to differing interpretations. Any such change or differing interpretation may be applied retroactively in a manner that could adversely affect a Non-U.S. Holder of our Class A common stock. We have not sought and will not seek any rulings from the IRS regarding the matters discussed below. We cannot assure that the IRS or a court will not take a contrary position to that discussed below regarding the tax consequences of the purchase, ownership and disposition of our Class A common stock.

This discussion is limited to Non-U.S. Holders that hold our Class A common stock as a “capital asset” within the meaning of Section 1221 of the Code (generally, property held for investment). This discussion does not address all U.S. federal income tax consequences relevant to a Non-U.S. Holder’s particular circumstances, including the impact of the Medicare contribution tax on net investment income. In addition, it does not address consequences relevant to Non-U.S. Holders subject to special rules, including, without limitation:

If an entity or arrangement treated as a partnership for U.S. federal income tax purposes holds our Class A common stock, the tax treatment of a partner in the partnership will depend on the status of the partner, the activities of the partnership and certain determinations made at the partner level. Accordingly, partnerships holding our Class A common stock and the partners in such partnerships should consult their tax advisors regarding the U.S. federal income tax consequences to them.

THIS DISCUSSION IS FOR INFORMATIONAL PURPOSES ONLY AND IS NOT TAX ADVICE. INVESTORS SHOULD CONSULT THEIR TAX ADVISORS WITH RESPECT TO THE APPLICATION OF THE U.S. FEDERAL INCOME TAX LAWS TO THEIR PARTICULAR SITUATIONS AS WELL AS ANY TAX CONSEQUENCES OF THE PURCHASE, OWNERSHIP AND DISPOSITION OF OUR CLASS A COMMON STOCK ARISING UNDER THE U.S. FEDERAL ESTATE OR GIFT TAX LAWS OR UNDER THE LAWS OF ANY STATE, LOCAL OR NON-U.S. TAXING JURISDICTION OR UNDER ANY APPLICABLE INCOME TAX TREATY.

For purposes of this discussion, a “Non-U.S. Holder” is any beneficial owner of our Class A common stock that is neither a “U.S. person” nor an entity treated as a partnership for U.S. federal income tax purposes. A U.S. person is any person that, for U.S. federal income tax purposes, is or is treated as any of the following:

As described in the section entitled “Dividend policy,” we do not anticipate declaring or paying dividends to holders of our Class A common stock in the foreseeable future. However, if we do make distributions of cash or property on our Class A common stock, such distributions will constitute dividends for U.S. federal income tax purposes to the extent paid from our current or accumulated earnings and profits, as determined under U.S. federal income tax principles. Amounts not treated as dividends for U.S. federal income tax purposes will constitute a return of capital and first be applied against and reduce a Non-U.S. Holder’s adjusted tax basis in its Class A common stock, but not below zero. Any excess will be treated as capital gain and will be treated as described below under “—Sale or other taxable disposition.”

Subject to the discussion below on effectively connected income and FATCA withholding, dividends paid to a Non-U.S. Holder of our Class A common stock will be subject to U.S. federal withholding tax at a rate of 30% of the gross amount of the dividends (or such lower rate specified by an applicable income tax treaty, provided the Non-U.S. Holder furnishes a valid IRS Form W-8BEN or W-8BEN-E (or other applicable documentation) certifying qualification for the lower treaty rate). A Non-U.S. Holder that does not timely furnish the required documentation, but that qualifies for a reduced treaty rate, may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for refund with the IRS. Non-U.S. Holders should consult their tax advisors regarding their entitlement to benefits under any applicable income tax treaty.

If dividends paid to a Non-U.S. Holder are effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States (and, if required by an applicable income tax treaty, the Non-U.S. Holder maintains a permanent establishment or fixed base in the United States to which such dividends are attributable), the Non-U.S. Holder will be exempt from the U.S. federal withholding tax described above. To claim the exemption, the Non-U.S. Holder must furnish to the applicable withholding agent a valid IRS Form W-8ECI, certifying that the dividends are effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States.

Any such effectively connected dividends will be subject to U.S. federal income tax on a net income basis at the regular graduated rates applicable to U.S. Holders. A Non-U.S. Holder that is a corporation also may be subject to a branch profits tax at a rate of 30% (or such lower rate specified by an applicable income tax treaty) on such effectively connected dividends, as adjusted for certain items. Non-U.S. Holders should consult their tax advisors regarding any applicable tax treaties that may provide for different rules.

Subject to the discussion below regarding backup withholding and FATCA withholding, in general, a Non-U.S. Holder will not be subject to U.S. federal income tax on any gain realized upon the sale or other taxable disposition of our Class A common stock unless:

Gain described in the first bullet point above generally will be subject to U.S. federal income tax on a net income basis at the regular graduated rates applicable to U.S. Holders. A Non-U.S. Holder that is a corporation also may be subject to a branch profits tax at a rate of 30% (or such lower rate specified by an applicable income tax treaty) on such effectively connected gain, as adjusted for certain items.

Gain described in the second bullet point above will be subject to U.S. federal income tax at a rate of 30% (or such lower rate specified by an applicable income tax treaty), which may be offset by U.S. source capital losses of the Non-U.S. Holder (even though the individual is not considered a resident of the United States), provided the Non-U.S. Holder has timely filed U.S. federal income tax returns with respect to such losses.

With respect to the third bullet point above, we believe we currently are not, and do not anticipate becoming, a USRPHC. Because the determination of whether we are a USRPHC depends, however, on the fair market value of our USRPIs relative to the fair market value of our non-U.S. real property interests and our other business assets, there can be no assurance we currently are not a USRPHC or will not become one in the future. Even if we are or were to become a USRPHC, gain arising from the sale or other taxable disposition by a Non-U.S. Holder of our Class A common stock will not be subject to U.S. federal income tax if our Class A common stock is “regularly traded,” as defined by applicable Treasury Regulations, on an established securities market during the calendar year in which the disposition occurs, and such Non-U.S. Holder owned, actually and constructively, 5% or less of our outstanding Class A common stock throughout the shorter of the five-year period ending on the date of the sale or other taxable disposition or the Non-U.S. Holder’s holding period. If we are a USRPHC and the foregoing exception does not apply to a disposition of our Class A common stock by a Non-U.S. Holder, such Non-U.S. Holder generally will be taxed on its net gain derived from the disposition at the regular U.S. federal income tax rates applicable to U.S. Holders. No assurance can be provided that our Class A common stock will continue to be regularly traded on an established securities market for purposes of the rules described above.

Non-U.S. Holders should consult their tax advisors regarding potentially applicable income tax treaties that may provide for different rules.

Payments of dividends on our Class A common stock will not be subject to backup withholding, provided the applicable withholding agent does not have actual knowledge or reason to know the holder is a U.S. person (as defined in the Code) and the holder either certifies its non-U.S. status, such as by furnishing a valid IRS Form W-8BEN, W-8BEN-E or W-8ECI (or other applicable or successor form), or otherwise establishes an exemption. However, information returns are required to be filed with the IRS in connection with any dividends on our Class A common stock paid to the Non-U.S. Holder, regardless of whether any tax was actually withheld. In addition, proceeds of the sale or other taxable disposition of our Class A common stock within the United States or conducted through certain U.S.-related brokers generally will not be subject to backup withholding or information reporting if the applicable withholding agent receives the certification described above and does not have actual knowledge or reason to know that such holder is a U.S. person, or the holder otherwise establishes an exemption. Proceeds of a disposition of our Class A common stock conducted through a non-U.S. office of a non-U.S. broker generally will not be subject to backup withholding or information reporting. However, for information reporting purposes, dispositions effected through a non-U.S. office of a broker with substantial U.S. ownership or operations generally will be treated in a manner similar to dispositions effected through a U.S. office of a broker. Non-U.S. Holders should consult their own tax advisors regarding the application of the information reporting and backup withholding rules to them.

Copies of information returns that are filed with the IRS may also be made available under the provisions of an applicable treaty or agreement to the tax authorities of the country in which the Non-U.S. Holder resides or is established.

Backup withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be allowed as a refund or a credit against a Non-U.S. Holder’s U.S. federal income tax liability, if any, provided the required information is timely furnished to the IRS.

Withholding taxes may be imposed under Sections 1471 to 1474 of the Code and the U.S. Treasury Regulations and other administrative guidance issued thereunder, such Sections commonly referred to as the Foreign Account Tax Compliance Act, or FATCA, on certain types of payments made to non-U.S. financial institutions and certain other non-U.S. entities. Specifically, a 30% withholding tax may be imposed on dividends on, or (subject to the proposed Treasury Regulations discussed below) gross proceeds from the sale or other disposition of, our Class A common stock paid to a “foreign financial institution” or a “non-financial foreign entity” (each as defined in the Code), unless (1) the foreign financial institution undertakes certain diligence and reporting obligations, (2) the non-financial foreign entity either certifies it does not have any direct or indirect “substantial United States owners” (as defined in the Code) or furnishes identifying information regarding each substantial United States owner, or (3) the foreign financial institution or non-financial foreign entity otherwise qualifies for an exemption from these rules. If the payee is a foreign financial institution and is subject to the diligence and reporting requirements in (1) above, it must enter into an agreement with the U.S. Department of the Treasury requiring, among other things, that it undertake to identify accounts held by certain “specified United States persons” or “United States-owned foreign entities” (each as defined in the Code), annually report certain information about such accounts, and withhold 30% on certain payments to non-compliant foreign financial institutions and certain other account holders. Foreign financial institutions located in jurisdictions that have an intergovernmental agreement with the United States governing FATCA may be subject to different rules.

Under the applicable Treasury Regulations and administrative guidance, withholding under FATCA generally applies to payments of dividends on our Class A common stock. Although withholding under FATCA would have applied also to payments of gross proceeds from the sale or other disposition of stock on or after January 1, 2019, proposed Treasury Regulations eliminate FATCA withholding on payments of gross proceeds entirely. Taxpayers generally may rely on these proposed Treasury Regulations until final Treasury Regulations are issued.

Prospective investors should consult their tax advisors regarding the potential application of withholding under FATCA to their investment in our Class A common stock.

Underwriting

J.P. Morgan Securities LLC is acting as sole underwriter for this offering. The term “underwriters” shall mean either the singular or plural as context requires. We and the selling stockholders have entered into an underwriting agreement with the underwriters. Subject to the terms and conditions of the underwriting agreement, the selling stockholders have agreed to sell to the underwriters, and each underwriter has severally agreed to purchase, at the public offering price less the underwriting discounts and commissions set forth on the cover page of this prospectus supplement, the number of shares of Class A common stock listed next to its name in the following table:

The underwriters are committed to purchase all the common stock offered by the selling stockholders if they purchase any shares. The underwriting agreement also provides that if an underwriter defaults, the purchase commitments of non-defaulting underwriters may also be increased or the offering may be terminated.

The underwriters have an option to buy up to 450,000 additional shares of Class A common stock from certain of the selling stockholders to cover sales of shares by the underwriters which exceed the number of shares specified in the table above. The underwriters have 30 days from the date of this prospectus supplement to exercise this option to purchase additional shares. If any shares are purchased with this option to purchase additional shares, the underwriters will purchase shares in approximately the same proportion as shown in the table above. If any additional shares of Class A common stock are purchased, the underwriters will offer the additional shares on the same terms as those on which the shares are being offered.

The underwriters have agreed to purchase the shares of our Class A common stock from the selling stockholders at a price of $             per share, which will result in $               of proceeds to the selling stockholders before expenses (or $               if the underwriters’ option to purchase an additional 450,000 shares of Class A common stock is exercised in full). The underwriters propose to offer the shares of Class A common stock from time to time for sale in one or more transactions on the NYSE, in the over-the-counter market, through negotiated transactions or otherwise at market prices prevailing at the time of sale, at prices related to prevailing market prices or at negotiated prices. The underwriters may effect such transactions by selling the shares of our Class A common stock to or through dealers, and such dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or purchasers for whom they may act as agents or to whom they may sell as principal. The offering of the shares of our Class A common stock by the underwriters is subject to receipt and acceptance and subject to the underwriters’ right to reject any order in whole or in part. In connection with the sale of the shares offered hereby, the underwriters may be deemed to have received compensation in the form of underwriting discounts.

We estimate that the total expenses of this offering, including registration, filing fees, printing fees and legal and accounting expenses, but excluding the underwriting discounts and commissions, will be approximately $          .

A prospectus supplement in electronic format may be made available on the websites maintained by one or more underwriters, or selling group members, if any, participating in the offering. The underwriters may agree to allocate a number of shares to underwriters and selling group members for sale to their online brokerage account holders. Internet distributions will be allocated by the representatives to underwriters and selling group members that may make Internet distributions on the same basis as other allocations.

Subject to certain exceptions, we have agreed that we will not (i) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of, directly or indirectly, or submit to, or file with, the SEC a registration statement under the Securities Act relating to, any shares of our common stock or securities convertible into or exercisable or exchangeable for any shares of our common stock, or publicly disclose the intention to make any offer, sale, pledge, loan, disposition or filing, or (ii) enter into any swap or other arrangement that transfers all or a portion of the economic consequences associated with the ownership of any shares of common stock or any such other securities (regardless of whether any of these transactions are to be settled by the delivery of shares of common stock or such other securities, in cash or otherwise), in each case without the prior written consent of the underwriters for a period of 45 days after the date of this prospectus supplement.

The restrictions on our actions, as described above, do not apply to certain transactions, including (i) the shares of our Class A common stock to be sold pursuant to this prospectus, (ii) shares or our common stock issued, transferred, redeemed or exchanged in connection with, or on substantially the same terms as, the exchange agreement, provided that such recipients enter into a lock-up agreement with the underwriters and no filing under the Exchange Act or public announcement is required or made voluntarily, (iii) the issuance of shares of our common stock or securities convertible into or exercisable for shares of our common stock pursuant to the conversion or exchange of convertible or exchangeable securities or the exercise of warrants or options (including net exercise) or the settlement of RSUs (including net settlement), in each case outstanding on the date of the underwriting agreement and described in this prospectus supplement; (iv) grants of stock options, stock awards, restricted stock, RSUs, or other equity awards and the issuance of shares of our common stock or securities convertible into or exercisable or exchangeable for shares of our common stock (whether upon the exercise of stock options or otherwise) to our employees, officers, directors, advisors, or consultants pursuant to the terms of an equity compensation plan in effect as of the closing of this offering and described in this prospectus supplement, provided that such recipients enter into a lock-up agreement with the underwriters; (v) our filing of any registration statement on Form S-8 relating to securities granted or to be granted pursuant to any plan in effect on the date of the underwriting agreement and described in this prospectus supplement or any assumed benefit plan pursuant to an acquisition or similar strategic transaction; (vi) the issuance of up to 35,955 shares of Class B common stock to holders of Class B-1 units, provided that no filing under the Exchange Act or public announcement is required or made voluntarily; (vii) the issuances of shares of common stock or other securities (including securities convertible into shares of common stock) in connection with the acquisition by us or any of our subsidiaries of the securities, businesses, properties or other assets of another person or entity pursuant to any employee benefit plan that we assume in connection with any such acquisition; (viii) the issuances of shares of common stock or other securities (including securities convertible into shares of common stock) in connection with joint ventures, commercial relationships or other strategic transactions, provided that in the case of clauses (vii) or (viii), the aggregate number of shares of common stock issued in all such acquisitions and transactions does not exceed 5.0% of our outstanding common stock following the offering of the shares and any recipients of such shares enter into a lock-up agreement with the underwriters.

Subject to certain exceptions, the selling stockholders, our directors and executive officers and certain other holders (such persons, the “lock-up parties”) have entered into lock-up agreements with the underwriters prior to the commencement of this offering pursuant to which each lock-up party, for a period of 45 days after the date of this prospectus supplement (the “restricted period”), may not (and may not cause any of their direct or indirect affiliates to), without the prior written consent of the underwriters, (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of, directly or indirectly, any shares of our common stock or any securities convertible into or exercisable or exchangeable for our common stock (including, without limitation, common stock or such other securities which may be deemed to be beneficially owned by such lock-up parties in accordance with the rules and regulations of the SEC and securities which may be issued upon exercise of a stock option or warrant (collectively with the common stock, the “lock-up securities”)), (2) enter into any hedging, swap or other agreement or transaction that transfers, in whole or in part, any of the economic consequences of ownership of the lock-up securities, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of lock-up securities, in cash or otherwise, (3) make any demand for, or exercise any right with respect to, the registration of any lock-up securities, or (4) publicly disclose the intention to do any of the foregoing. Such persons or entities have further acknowledged that these undertakings preclude them from engaging in any hedging or other transactions or arrangements (including, without limitation, any short sale or the purchase or sale of, or entry into, any put or call option, or combination thereof, forward, swap or any other derivative transaction or instrument, however described or defined) designed or intended, or which could reasonably be expected to lead to or result in, a sale or disposition or transfer (by any person or entity, whether or not a signatory to such agreement) of any economic consequences of ownership, in whole or in part, directly or indirectly, of any lock-up securities, whether any such transaction or arrangement (or instrument provided for thereunder) would be settled by delivery of lock-up securities, in cash or otherwise.

The restrictions described in the immediately preceding paragraph and contained in the lock-up agreements between the underwriters and the lock-up parties do not apply, subject in certain cases to various conditions, to certain transactions, including (a) transfers of lock-up securities: (i) as bona fide gifts, or for bona fide estate planning purposes, (ii) by will or intestacy, (iii) to any immediate family member or any trust for the direct or indirect benefit of the lock-up party or any immediate family member, (iv) to a partnership, limited liability company, or other entity of which the lock-up party and its immediate family members are the legal and beneficial owner of all of the outstanding equity securities or similar interests, (v) to a nominee or custodian of a person or entity to whom a disposition or transfer would be permissible under clauses (i) through (iv), (vi) in the case of a corporation, partnership, limited liability company, trust or other business entity, (A) to another corporation, partnership, limited liability company, trust, or other business entity that is an affiliate of the lockup party, or to any investment fund or other entity controlling,

controlled by, managing or managed by or under common control with the lock-up party or its affiliates or (B) as part of a distribution to members, partners or stockholders of the lock-up party; (vii) by operation of law, (viii) to us from an employee upon death, disability, or termination of employment of such employee, (ix) as part of a sale of lock-up securities acquired in open market transactions after the completion of this offering, (x) to us in connection with the vesting, settlement, or exercise of restricted stock, restricted stock units, options, warrants, or other rights to purchase shares of our common stock (including “net” or “cashless” exercise), including for the payment of exercise price and tax and remittance payments, (xi) pursuant to a bona fide third-party tender offer, merger, consolidation, or other similar transaction approved by our Board of Directors and made to all shareholders involving a change in control of the Company, provided that if such transaction is not completed, all such lock-up securities would remain subject to the restrictions in the immediately preceding paragraph, (xii) as required by applicable law or pursuant to an order of a court or regulatory agency of competent jurisdiction; (xiii) by pledging, hypothecating or otherwise granting a security interest in the lock-up securities to one or more lending institutions as collateral or security for any bona fide loan, advance or extension of credit and transferring upon foreclosure upon such lock-up securities, provided that the transferee or transferees agree(s) to be subject to restrictions similar to those in the immediately preceding paragraph, (xiv) the exchange of Class B-1 units of QL Holdings LLC and a corresponding number of shares of our Class B common stock for shares of our Class A common stock pursuant to the exchange agreement; and (xv) the proceeds of which are to be used to pay estimated tax liabilities in connection with the March 2024 scheduled vesting or settlement of restricted stock units; (b) exercise of the options, settlement of RSUs, or other equity awards, or the exercise of warrants granted pursuant to plans described in this prospectus, provided that any lock-up securities received upon such exercise, vesting or settlement would be subject to restrictions similar to those in the immediately preceding paragraph; (c) the conversion of outstanding preferred stock, warrants to acquire preferred stock, or convertible securities into shares of our common stock or warrants to acquire shares of our common stock, provided that any common stock or warrant received upon such conversion would be subject to restrictions similar to those in the immediately preceding paragraph; and (d) the establishment by lock-up parties of trading plans under Rule 10b5-1 under the Exchange Act, provided that such plan does not provide for the transfer of lock-up securities during the restricted period and no filing under the Exchange Act or public announcement is required or voluntarily made (other than pursuant to Item 5 of Form 10-Q or Item 9B of Form 10-K).

The underwriters, in their sole discretion, may release the securities subject to any of the lock-up agreements with the underwriters described above, in whole or in part at any time. In the event that any discretionary waiver is granted to any person or entity that beneficially owns 1% or more of our shares of common stock, the same percentage of shares of common stock held by the lock-up parties that beneficially own less than 1% of our shares of common stock will be immediately and fully released on the same terms from any remaining lock-up restrictions, except in cases where the waiver is to permit a transfer not involving a disposition for value, the transferee enters into a lockup agreement with the underwriters, in the case of any secondary underwritten public offering of shares of common stock that such lock-up party can participate in, if the amount of the waiver is less than or equal to $2.5 million in value of common stock or if the waiver is granted because of an emergency or hardship.

We and the selling stockholders have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act.

Our shares of Class A common stock are listed on NYSE under the symbol “MAX.”

In connection with this offering, the underwriters may engage in stabilizing transactions, which involves making bids for, purchasing and selling shares of Class A common stock in the open market for the purpose of preventing or retarding a decline in the market price of the Class A common stock while this offering is in progress. These stabilizing transactions may include making short sales of Class A common stock, which involves the sale by the underwriters of a greater number of shares of Class A common stock than they are required to purchase in this offering, and purchasing shares of Class A common stock on the open market to cover positions created by short sales. Short sales may be “covered” shorts, which are short positions in an amount not greater than the underwriters’ option to purchase additional shares referred to above, or may be “naked” shorts, which are short positions in excess of that amount. The underwriters may close out any covered short position either by exercising their option to purchase additional shares, in whole or in part, or by purchasing shares in the open market. In making this determination, the underwriters will consider, among other things, the price of shares available for purchase in the open market compared to the price at which the underwriters may purchase shares through the option to purchase additional shares. A naked short position is more likely to be created if the underwriters are concerned that there may be downward pressure on the price of the Class A common stock in the open market that could adversely affect investors who purchase in this offering. To the extent that the underwriters create a naked short position, they will purchase shares in the open market to cover the position.

The underwriters have advised us that, pursuant to Regulation M of the Securities Act, they may also engage in other activities that stabilize, maintain or otherwise affect the price of the Class A common stock, including the imposition of penalty bids. This means that if the representatives of the underwriters purchase Class A common stock in the open market in stabilizing transactions or to cover short sales, the representatives can require the underwriters that sold those shares as part of this offering to repay the underwriting discount received by them.

These activities may have the effect of raising or maintaining the market price of the Class A common stock or preventing or retarding a decline in the market price of the Class A common stock, and, as a result, the price of the Class A common stock may be higher than the price that otherwise might exist in the open market. If the underwriters commence these activities, they may discontinue them at any time. The underwriters may carry out these transactions on the NYSE, in the over-the-counter market or otherwise.

Other than in the United States, no action has been taken by us or the underwriters that would permit a public offering of the securities offered by this prospectus supplement in any jurisdiction where action for that purpose is required. The securities offered by this prospectus supplement may not be offered or sold, directly or indirectly, nor may this prospectus supplement or any other offering material or advertisements in connection with the offer and sale of any such securities be distributed or published in any jurisdiction, except under circumstances that will result in compliance with the applicable rules and regulations of that jurisdiction. Persons into whose possession this prospectus supplement comes are advised to inform themselves about and to observe any restrictions relating to the offering and the distribution of this prospectus supplement. This prospectus supplement does not constitute an offer to sell or a solicitation of an offer to buy any securities offered by this prospectus supplement in any jurisdiction in which such an offer or a solicitation is unlawful.

Certain of the underwriters and their affiliates have provided in the past to us and our affiliates and may provide from time to time in the future certain commercial banking, financial advisory, investment banking and other services for us and such affiliates in the ordinary course of their business, for which they have received and may continue to receive customary fees and commissions. In addition, from time to time, certain of the underwriters and their affiliates may effect transactions for their own account or the account of customers, and hold on behalf of themselves or their customers, long or short positions in our debt or equity securities or loans, and may do so in the future.

The shares may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the shares must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws.

Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus (including any amendment thereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 of National Instrument 33-105 Underwriting Conflicts (NI 33-105), the underwriters are not required to comply with the disclosure requirements of NI 33-105 regarding underwriter conflicts of interest in connection with this offering.

In relation to each Member State of the European Economic Area (each a “Relevant State”), no shares have been offered or will be offered pursuant to this offering to the public in that Relevant State prior to the publication of a prospectus in relation to the shares which has been approved by the competent authority in that Relevant State or, where appropriate, approved in another Relevant State and notified to the competent authority in that Relevant State, all in accordance with the Prospectus Regulation,

except that offers of shares may be made to the public in that Relevant State at any time under the following exemptions under the Prospectus Regulation:

For the purposes of this provision, the expression an “offer to the public” in relation to shares in any Relevant State means the communication in any form and by any means of sufficient information on the terms of the offer and any shares to be offered so as to enable an investor to decide to purchase or subscribe for any shares, and the expression “Prospectus Regulation” means Regulation (EU) 2017/1129.

No shares have been offered or will be offered pursuant to this offering to the public in the United Kingdom prior to the publication of a prospectus in relation to the Shares which is to be treated as if it had been approved by the Financial Conduct Authority in accordance with the transitional provisions in Article 74 (transitional provisions) of the Prospectus Amendment etc (EU Exit) Regulations 2019/1234, except that the Shares may be offered to the public in the United Kingdom at any time:

provided that no such offer of the Shares shall require the Issuer or any Manager to publish a prospectus pursuant to Section 85 of the FSMA or supplement a prospectus pursuant to Article 23 of the UK Prospectus Regulation. For the purposes of this provision, the expression an “offer to the public” in relation to the Shares in the United Kingdom means the communication in any form and by any means of sufficient information on the terms of the offer and any Shares to be offered so as to enable an investor to decide to purchase or subscribe for any Shares and the expression “UK Prospectus Regulation” means Regulation (EU) 2017/1129 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018.

In addition, in the United Kingdom, this document is being distributed only to, and is directed only at, and any offer subsequently made may only be directed at persons who are “qualified investors” (as defined in the Prospectus Regulation) (i) who have professional experience in matters relating to investments falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the “Order”) and/or (ii) who are high net worth companies (or persons to whom it may otherwise be lawfully communicated) falling within Article 49(2)(a) to (d) of the Order (all such persons together being referred to as “relevant persons”) or otherwise in circumstances which have not resulted and will not result in an offer to the public of the shares in the United Kingdom within the meaning of the Financial Services and Markets Act 2000.

Any person in the United Kingdom that is not a relevant person should not act or rely on the information included in this document or use it as basis for taking any action. In the United Kingdom, any investment or investment activity that this document relates to may be made or taken exclusively by relevant persons.

The shares have not been and will not be registered pursuant to Article 4, Paragraph 1 of the Financial Instruments and Exchange Act. Accordingly, none of the shares nor any interest therein may be offered or sold, directly or indirectly, in Japan or to, or for the benefit of, any “resident” of Japan (which term as used herein means any person resident in Japan, including any corporation or other entity organized under the laws of Japan), or to others for re-offering or resale, directly or indirectly, in Japan or to or for the benefit of a resident of Japan, except pursuant to an exemption from the registration requirements of, and otherwise in compliance with, the Financial Instruments and Exchange Act and any other applicable laws, regulations and ministerial guidelines of Japan in effect at the relevant time.

The shares have not been offered or sold and will not be offered or sold in Hong Kong, by means of any document, other than (a) to “professional investors” as defined in the Securities and Futures Ordinance (Cap. 571 of the Laws of Hong Kong) (the “SFO”) of Hong Kong and any rules made thereunder; or (b) in other circumstances which do not result in the document being a “prospectus” as defined in the Companies (Winding Up and Miscellaneous Provisions) Ordinance (Cap. 32) of Hong Kong) (the “CO”) or which do not constitute an offer to the public within the meaning of the CO. No advertisement, invitation or document relating to the shares has been or may be issued or has been or may be in the possession of any person for the purposes of issue, whether in Hong Kong or elsewhere, which is directed at, or the contents of which are likely to be accessed or read by, the public of Hong Kong (except if permitted to do so under the securities laws of Hong Kong) other than with respect to shares which are or are intended to be disposed of only to persons outside Hong Kong or only to “professional investors” as defined in the SFO and any rules made thereunder.

Each representative has acknowledged that this prospectus has not been registered as a prospectus with the Monetary Authority of Singapore. Accordingly, each representative has represented and agreed that it has not offered or sold any shares or caused the shares to be made the subject of an invitation for subscription or purchase and will not offer or sell any shares or cause the shares to be made the subject of an invitation for subscription or purchase, and has not circulated or distributed, nor will it circulate or distribute, this prospectus or any other document or material in connection with the offer or sale, or invitation for subscription or purchase, of the shares, whether directly or indirectly, to any person in Singapore other than:

Where the shares are subscribed or purchased under Section 275 of the SFA by a relevant person which is:

securities or securities-based derivatives contracts (each term as defined in Section 2(1) of the SFA) of that corporation or the beneficiaries’ rights and interest (howsoever described) in that trust shall not be transferred within six months after that corporation or that trust has acquired the shares pursuant to an offer made under Section 275 of the SFA except:

This Prospectus does not constitute an offer to the public or a solicitation to purchase or invest in any shares. No shares have been offered or will be offered to the public in Switzerland, except that offers of shares may be made to the public in Switzerland at any time under the following exemptions under the Swiss Financial Services Act ("FinSA"):

provided that no such offer of shares shall require the Company or any investment bank to publish a prospectus pursuant to Article 35 FinSA.

The shares have not been and will not be listed or admitted to trading on a trading venue in Switzerland.

Neither this document nor any other offering or marketing material relating to the shares constitutes a prospectus as such term is understood pursuant to the FinSA and neither this document nor any other offering or marketing material relating to the shares may be publicly distributed or otherwise made publicly available in Switzerland.

Legal matters

The validity of the shares of Class A common stock offered hereby will be passed upon for us by Cravath, Swaine & Moore LLP, New York, New York. Certain legal matters in connection with this offering will be passed upon for the underwriters by Davis Polk & Wardwell LLP, New York, New York.

Experts

The financial statements and management’s assessment of the effectiveness of internal control over financial reporting (which is included in Management’s Report on Internal Control Over Financial Reporting) incorporated in this prospectus by reference to the Annual Report on Form 10-K for the year ended December 31, 2023 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

Where you can find more information

MediaAlpha, Inc. files annual, quarterly and current reports, proxy statements and other information with the SEC. The SEC maintains an Internet site that contains reports, proxy and information statements, and other information regarding issuers, including MediaAlpha, Inc., that file electronically with the SEC at http://www.sec.gov. MediaAlpha, Inc.’s SEC filings are also available at our website: https://investors.mediaalpha.com. Except for documents filed with the SEC and incorporated by reference into this prospectus supplement, no information contained in, or that can be accessed through, our website is to be considered part of this prospectus supplement.

Certain documents incorporated by reference

This prospectus supplement is part of a registration statement on Form S-3 filed with the SEC. This prospectus supplement does not contain all of the information included in the registration statement, certain parts of which are omitted in accordance with the rules and regulations of the SEC.

The rules of the SEC allow us to incorporate by reference into this prospectus supplement the information we file with the SEC. This means that we are disclosing important information to you by referring to other documents. The information incorporated by reference is considered to be part of this prospectus supplement and the accompanying prospectus, except for any information superseded by information contained directly in this prospectus supplement or the accompanying prospectus or in any other subsequently filed document that also is incorporated by reference herein. We incorporate by reference the documents listed below (other than any portions thereof, which under the Exchange Act, and applicable SEC rules, are not deemed “filed” under the Exchange Act):

Any statement contained in a document incorporated by reference in this prospectus supplement or the accompanying prospectus shall be deemed to be modified or superseded for purposes of this prospectus supplement or the accompanying prospectus to the extent that a statement contained in this prospectus supplement or in any other subsequently filed document that is also incorporated by reference in this prospectus supplement or the accompanying prospectus modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus supplement or the accompanying prospectus.

You can obtain any of the filings incorporated by reference into this prospectus supplement or the accompanying prospectus through us or from the SEC through the SEC’s website at http://www.sec.gov. We will provide without charge to each person, including any beneficial owner, to whom a copy of this prospectus supplement and prospectus is delivered, upon written or oral request of such person, a copy of any or all of the documents referred to above, which have been incorporated by reference in this prospectus supplement and the accompanying prospectus contained in the registration statement, but not delivered with the prospectus supplement and the accompanying

prospectus. You should direct requests for these documents to MediaAlpha, Inc., 700 South Flower Street, Suite 640, Los Angeles, California 90017; Attention: Corporate Secretary (telephone: (213) 316-6256). Exhibits to any documents incorporated by reference in this prospectus supplement and the accompanying prospectus will not be sent, however, unless those exhibits have been specifically referenced in this prospectus supplement or the accompanying prospectus.

PROSPECTUS

MediaAlpha, Inc.

None of the Securities and Exchange Commission, any state securities commission or any other regulatory body has approved or disapproved of these shares of Class A common stock or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is December 22, 2023

Table of Contents

Glossary

As used in this prospectus:

About this prospectus

This prospectus is part of a registration statement on Form S-3 that MediaAlpha, Inc. filed with the Securities and Exchange Commission (the “SEC”) utilizing a “shelf” registration process. As used in this prospectus, unless the context otherwise indicates, any reference to “MediaAlpha,” “our Company,” the “Company,” “we,” “us,” and “our” refers to MediaAlpha, Inc., the issuer of the shares offered hereby, together with its consolidated subsidiaries. QL Holdings LLC is the predecessor to MediaAlpha. When we refer to the “selling stockholders” in this prospectus, we refer to the selling stockholders named in this prospectus or in any supplement to this prospectus or certain transferees, assignees, pledgees, donees or other successors-in-interest that received shares of Class A common stock from the selling stockholders. Capitalized terms used in this prospectus and not otherwise defined herein have the meanings given such terms in MediaAlpha’s Annual Report on Form 10-K for the year ended December 31, 2022, which is incorporated by reference into this prospectus.

Under this shelf registration process, the selling stockholders may from time to time offer and sell up to 34,285,821 shares of Class A common stock in one or more offerings or resales as described in this prospectus. This prospectus provides you with only a general description of the shares of Class A common stock that are registered hereunder. This prospectus does not contain all of the information set forth in the registration statement of which this prospectus is a part, as permitted by the rules and regulations of the SEC. For additional information regarding us, the selling stockholders and the offered shares of Class A common stock, please refer to the registration statement of which this prospectus is a part.

Neither we nor the selling stockholders take any responsibility for, nor can provide any assurance as to, the reliability of, any information that others may give you. Neither we nor the selling stockholders have authorized any other person to provide you with information different from the information contained or incorporated by reference in this prospectus and any applicable prospectus supplement. Neither we, the selling stockholders nor any underwriter, dealer or agent will make an offer to sell the shares of Class A common stock in any jurisdiction where the offer or sale is not permitted. You should assume that the information in this prospectus and any applicable prospectus supplement is accurate only as of the dates on their covers and that any information incorporated by reference is accurate only as of the date of the document incorporated by reference, unless we indicate otherwise. Our business, financial condition, results of operations and prospects may have changed since those dates.

Cautionary statement regarding forward-looking statements

Certain statements made in this prospectus and the documents incorporated herein by reference and in other written or oral statements made by us or on our behalf are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect our current views with respect to, among other things, future events and our financial performance. These statements are often, but not always, made through the use of words or phrases such as “may,” “should,” “could,” “predict,” “potential,” “believe,” “will likely result,” “expect,” “continue,” “will,” “anticipate,” “seek,” “estimate,” “intend,” “plan,” “projection,” “would,” and “outlook,” or the negative version of those words or other comparable words or phrases of a future or forward-looking nature. These forward-looking statements are not historical facts, and are based on current expectations, estimates and projections about our industry, management’s beliefs and certain assumptions made by management, many of which, by their nature, are inherently uncertain and beyond our control. Accordingly, we caution you that any such forward-looking statements are not guarantees of future performance and are subject to risks, assumptions and uncertainties that are difficult to predict. Although we believe that the expectations reflected in these forward-looking statements are reasonable as of the date made, actual results may prove to be materially different from the results expressed or implied by the forward-looking statements.

There are or will be important factors that could cause our actual results to differ materially from those indicated in these forward-looking statements, including, but not limited to, the following:

The foregoing factors should not be construed as exhaustive and should be read together with the other cautionary statements included in this prospectus. If one or more events related to these or other risks or uncertainties materialize, or if our underlying assumptions prove to be incorrect, actual results may differ materially from what we anticipate. Many of the important factors that will determine these results are beyond our ability to control or predict. Accordingly, you should not place undue reliance on any such forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made, and, except as otherwise required by law, we do not undertake any obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise. New factors emerge from time to time, and it is not possible for us to predict which will arise. In addition, we cannot assess the impact of each factor on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

Risk factors

Investing in our Class A common stock involves risk. You are urged to carefully read and consider the risk factors described in Item 1A of Part I of our Annual Report on Form 10-K for the year ended December 31, 2022, which is incorporated by reference in this prospectus. Before making an investment decision, you should carefully consider these risks as well as other information contained or incorporated by reference in this prospectus and the applicable supplement to this prospectus, if any. The risks and uncertainties described are not the only ones facing us. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business operations and financial results and the value of our Class A common stock.

Use of proceeds

We will not receive any of the proceeds from the sale of Class A common stock by the selling stockholders.

Selling stockholders

This prospectus covers the offering for resale from time to time, in one or more offerings, of up to 34,285,821 shares of our Class A common stock by the selling stockholders named herein. In this section, references to “we,” “our,” “ours” and “us” refer only to MediaAlpha, Inc. and not to any of its direct or indirect subsidiaries or affiliates except as expressly provided.

The following table set forth (i) the name of each selling stockholder, (ii) the number of shares of Class A common stock (including shares of Class A common stock issuable upon exchange of outstanding Class B-1 units, together with a corresponding number of shares of Class B common stock) beneficially owned by each selling stockholder as of November 30, 2023 (iii) the number of shares of Class A common stock (including shares of Class A common stock issuable upon exchange of outstanding Class B-1 units, together with a corresponding number of shares of Class B common stock) offered by each selling stockholder hereunder, and (iv) the number of shares of Class A common stock (including shares of Class A common stock issuable upon exchange of outstanding Class B-1 units, together with a corresponding number of shares of Class B common stock) beneficially owned by each selling stockholder following the completion of this offering (assuming each selling stockholder sells all of the shares of our Class A common stock covered by this prospectus). The immediately following table also sets forth the percentage of Class A common stock (including shares of Class A common stock issuable upon exchange of outstanding Class B-1 units, together with a corresponding number of shares of Class B common stock) beneficially owned by the selling stockholders after giving effect to the sale by the selling stockholders of all shares of our Class A common stock covered by this prospectus, based on 64,607,419 shares of Class A common stock, which includes 47,286,590 shares of Class A common stock outstanding as of November 30, 2023 and assumes the exchange of 17,320,829 Class B-1 units, together with an equal number of shares of our Class B common stock, for an equivalent number of shares of our Class A common stock.

The number of shares beneficially owned by each stockholder is determined under rules of the SEC and includes voting or investment power with respect to our Class A common stock and Class B common stock. Under these rules, beneficial ownership includes any shares as to which the individual or entity has sole or shared voting power or investment power. In computing the number of shares beneficially owned by an individual or entity and the percentage ownership of that person, shares of common stock subject to options, warrants or other rights held by such person that are currently exercisable or will become exercisable within 60 days are considered outstanding, although these shares are not considered outstanding for purposes of computing the percentage ownership of any other person.

The selling stockholders are not making any representation that any shares of Class A common stock covered by this prospectus will be offered for sale. Because each selling stockholder may dispose of all, none or some portion of the shares of Class A common stock covered by this prospectus, no estimate can be given as to the number of shares that will be beneficially owned by a selling stockholder upon termination of this offering. In addition, the selling stockholders may have sold, transferred or otherwise disposed of their shares of Class A common stock in transactions exempt from the registration requirements of the Securities Act after the date on which the information in the table is presented. For purposes of the table below, however, we have assumed that after termination of this offering, none of the shares of Class A common stock registered for resale under this prospectus will be beneficially owned by the selling stockholders, and we have further assumed that the selling stockholders will not acquire beneficial ownership of any additional shares of Class A common stock during this offering.

We may amend or supplement this prospectus from time to time in the future to update or change this selling stockholders list and the shares of Class A common stock that may be resold pursuant to this prospectus. See the

The following summaries do not purport to be complete and are subject, and qualified in entirety by reference, to the applicable documents incorporated by reference herein. We urge you to read these documents because they, and not the following summaries, outline the material relationships with the selling stockholders.

We operate our business through QL Holdings LLC, together with its subsidiaries. The operations of QL Holdings LLC, and the rights and obligations of its members, are governed by the fourth amended and restated limited liability company agreement of QL Holdings LLC. Through our wholly owned subsidiary, Intermediate Holdco, we serve as sole managing member of QL Holdings LLC. The following is a description of the material terms of the fourth amended and restated limited liability company agreement.

Through our wholly owned subsidiary, Intermediate Holdco, we serve as sole managing member of QL Holdings LLC. As such, we control its business and affairs and are responsible for the management of its business. No other members of QL Holdings LLC, in their capacity as such, have any authority or right to control the management of QL Holdings LLC or to bind it in connection with any matter.

QL Holdings LLC has two classes of outstanding equity: Class A-1 units, which may only be issued to our wholly owned subsidiary, Intermediate Holdco, as sole managing member, and Class B-1 units. We refer to these Class A-1 units and Class B-1 units of QL Holdings LLC, collectively, as QL units. Insignia and the Senior Executives hold Class B-1 Units. The Class A-1 units and Class B-1 units entitle their holders to equivalent economic rights, meaning an equal share in the profits and losses of, and distributions from, QL Holdings LLC. Holders of Class B-1 units have no

voting rights as it pertains to QL Holdings LLC, except for the right to approve certain amendments to the fourth amended and restated limited liability company agreement.

Net profits and losses of QL Holdings LLC generally will be allocated, and distributions will be made, to its members pro rata in accordance with the number of QL units (Class A-1 or Class B-1, as the case may be) they hold.

Subject to the availability of net cash flow at the QL Holdings LLC level and to applicable legal and contractual restrictions, we intend to cause QL Holdings LLC to distribute to Intermediate Holdco cash payments (and, if applicable, cause Intermediate Holdco to declare and pay a dividend to us in the same amount) for the purposes of funding tax obligations in respect of any net taxable income that is allocated to us as a member of QL Holdings LLC, to fund dividends, if any, declared by us and to make any payments due under the tax receivables agreement, as described below. QL Holdings LLC will be required to make pro rata distributions to each other member of QL Holdings LLC, as and when QL Holdings LLC makes any distribution to Intermediate Holdco. Regardless of whether QL Holdings LLC makes distributions to its members in any given year, the determination to pay dividends, if any, to holders of our Class A common stock will be made by our Board of Directors. We do not, however, expect to declare or pay any cash or other dividends in the foreseeable future on our Class A common stock, as we intend to reinvest any cash flow generated by operations in our business. Class B common stock is not entitled to any dividend payments.

Whenever we issue one share of Class A common stock for cash, the net proceeds will be promptly contributed to Intermediate Holdco and then in turn to QL Holdings LLC, in exchange for one Class A-1 unit of QL Holdings LLC. Alternatively, from time to time, we may, at our election, transfer the net proceeds of the issuance of shares of Class A common stock to a holder of Class B-1 units of QL Holdings LLC in exchange for their Class B-1 unit and a share of our Class B common stock in order to satisfy our obligations under the exchange agreement (in lieu of issuing a share of Class A common stock to such exchanging Class B-1 unitholder). However, the Class B-1 unitholders cannot require us to pay cash for their Class B-1 units under the exchange agreement. In the event we elect to pay cash for a Class B-1 unit, QL Holdings LLC will cancel such exchanged Class B-1 unit and issue to Intermediate Holdco one Class A-1 unit. If we issue other classes or series of equity securities, we will contribute to Intermediate Holdco, and then in turn to QL Holdings LLC, the net proceeds we receive in connection with such issuance, and QL Holdings LLC will issue to Intermediate Holdco an equal number of equity securities with designations, preferences and other rights and terms that are substantially the same as our newly issued equity securities. Conversely, if we repurchase any shares of Class A common stock (or equity securities of other classes or series) for cash, QL Holdings LLC will, immediately prior to our repurchase, redeem an equal number of Class A-1 units (or its equity securities of the corresponding classes or series), upon the same terms and for the same price, as the shares of our Class A common stock (or our equity securities of such other classes or series) that are repurchased. Common units and shares of our common stock will be subject to equivalent stock splits, dividends and reclassifications.

We do not conduct any business other than the management and ownership of QL Holdings LLC through our wholly owned subsidiary, Intermediate Holdco, or own any other material assets (other than on a temporary basis), although we may take such actions and own such assets as are necessary to comply with applicable law, including compliance with our responsibilities as a public company under the U.S. federal securities laws, and may incur indebtedness and take other actions if we determine that doing so is in our best interest.

Class A-1 units may be issued only to our wholly owned subsidiary, Intermediate Holdco, as sole managing member of QL Holdings LLC. Class B-1 units may be issued only to persons or entities we permit, which immediately following the completion of the IPO, included Insignia and the Senior Executives. Such issuances shall be made in exchange for cash or other consideration. Class B-1 units may not be transferred as Class B-1 units except to certain permitted transferees and in accordance with the restrictions on transfer set forth in the fourth amended and restated limited liability company agreement of QL Holdings LLC. Any such transfer must be accompanied by the transfer of an equal number of shares of our Class B common stock.

The fourth amended and restated limited liability company agreement of QL Holdings LLC contains provisions limiting the liability of QL Holdings LLC’s members (including Intermediate Holdco, our wholly owned subsidiary), officers and their respective affiliates to QL Holdings LLC or any of its members. Moreover, the fourth amended and restated limited liability company agreement contains broad indemnification provisions for QL Holdings LLC’s members

(including Intermediate Holdco, our wholly owned subsidiary), officers and their respective affiliates. Because QL Holdings LLC is a limited liability company, these provisions are not subject to the limitations on exculpation and indemnification contained in the DGCL with respect to the indemnification that may be provided by a Delaware corporation to its directors and officers.

Each share of our Class A common stock or our Class B common stock will entitle its holder to one vote.

QL Holdings LLC unitholders, including us (indirectly through Intermediate Holdco), generally incur U.S. federal, state and local income taxes on their allocable shares of any net taxable income of QL Holdings LLC. The fourth amended and restated limited liability company agreement of QL Holdings LLC provides for pro rata cash distributions to its members to cover (i) our U.S. federal, state and local tax obligations in respect of our allocable share of QL Holdings LLC’s taxable income and (ii) our obligations under the tax receivables agreement. In addition, the fourth amended and restated limited liability company agreement of QL Holdings LLC also provides for (in certain cases) tax distributions for a fiscal quarter to its other members in respect of their pre-exchange allocable share of QL Holdings LLC’s taxable income for such fiscal quarter relating to Class B-1 Units (if any) transferred to us by them (pursuant to the exchange agreement) before the applicable tax distribution date.

QL Holdings LLC intends that an election under Section 754 of the U.S. Internal Revenue Code of 1986, as amended (the “Code”), will be effective for 2020 and future taxable years. We expect that, as a result of this election, our purchase (through Intermediate Holdco) of Class B-1 units of QL Holdings LLC in connection with the IPO, as well as any post-IPO exchanges of Class B-1 units of QL Holdings LLC (including in connection with this offering), together with an equal number of shares of our Class B common stock, for shares of our Class A common stock (or, at our election, cash of an equivalent value), will increase our share of the tax basis of the tangible and intangible assets of QL Holdings LLC, which will increase the tax depreciation and amortization deductions available to us and could create other tax benefits. This existing and increased tax basis may also decrease gain (or increase loss) on future dispositions of certain assets to the extent tax basis is allocated to those assets.

Any such deductions or other tax benefits (including additional tax benefits created as a result of payments under the tax receivables agreement itself) could reduce the amount of cash taxes that we would otherwise be required to pay in the future. We will be required to pay 85% of such cash tax reduction, if any, to the tax receivables agreement’s counterparties. To the extent that we are unable to make payments under the tax receivables agreement for any reason, such payments will be deferred and will accrue interest until paid. See “-Tax receivables agreement.”

Immediately prior to the completion of the IPO, we entered into an exchange agreement with Insignia and the Senior Executives, each of which hold Class B-1 units. Pursuant to and subject to the terms of the exchange agreement and the fourth amended and restated limited liability company agreement of QL Holdings LLC, holders of Class B-1 units, from time to time, may exchange one Class B-1 unit, together with the corresponding share of our Class B common stock, for one share of our Class A common stock (or, at our election, cash of an equivalent value).

Exchanges pursuant to the exchange agreement may be completed, unless otherwise directed by the holder of Class B-1 units, at the election of QL Holdings LLC, by us, Intermediate Holdco, or QL Holdings LLC. If Intermediate Holdco completes such exchange, we will contribute Class A common stock to Intermediate Holdco prior to the exchange. If QL Holdings completes such exchange, we will contribute Class A common stock to Intermediate Holdco and then in turn to QL Holdings LLC prior to the exchange. The amount of Class A common stock issued or conveyed will be subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications and other similar transactions.

Holders will not have the right to exchange Class B-1 units if we determine that such exchange would be prohibited by applicable law or regulation or would violate other agreements to which we may be subject or would pose a material risk that QL Holdings LLC would be treated as a “publicly traded partnership” for U.S. federal income tax purposes. If the IRS were to contend successfully that QL Holdings LLC should be treated as a “publicly traded partnership” for U.S. federal income tax purposes, QL Holdings LLC would be treated as a corporation for U.S. federal income tax purposes and thus would be subject to entity-level tax on its taxable income.

A holder that exchanges Class B-1 units will also be required to deliver an equal number of shares of our Class B common stock. In connection with each exchange, QL Holdings LLC will cancel the delivered Class B-1 units and (unless, at our election, cash of an equivalent value is delivered in lieu of Class A common stock) issue Class A-1 units to Intermediate Holdco on a one-for-one basis. Thus, as holders exchange their Class B-1 units for Class A common stock or cash, our indirect interest in QL Holdings LLC will increase.

We and the exchanging holder will each generally bear our own expenses in connection with an exchange, except that, subject to a limited exception, we are required to pay any transfer taxes, stamp taxes or duties or other similar taxes in connection with such an exchange.

As of December 1, 2023, we have reserved for issuance 18,070,829 shares of our Class A common stock for potential exchange in the future for Class B-1 units, which is the aggregate number of shares of Class B common stock outstanding as of that date.

In connection with the IPO, we entered into the tax receivables agreement with Insignia, the Senior Executives, and White Mountains related to the tax basis step-up of the assets of QL Holdings LLC and certain net operating losses of Intermediate Holdco. The agreement requires us to pay Insignia and the Senior Executives 85% of the cash savings, if any, in U.S. federal, state and local income tax we realize (or are deemed to realize) as a result of (i) any increases in tax basis following our purchase (through Intermediate Holdco) of Class B-1 units of QL Holdings LLC from certain unitholders (including the Selling Class B-1 Unit Holders) in connection with the IPO, as well as any post-IPO exchanges (including in connection with this offering) described above, (ii) the Pre-IPO Leveraged Distribution and other actual or deemed distributions by QL Holdings LLC to its members that result in tax basis adjustments to the assets of QL Holdings LLC, and (iii) certain other tax benefits attributable to payments under the tax receivables agreement itself.

The tax receivables agreement also requires us to pay White Mountains 85% of the amount of the cash savings, if any, in U.S. federal, state and local income tax that we realize (or are deemed to realize) as a result of the utilization of the net operating losses of Intermediate Holdco attributable to periods prior to the IPO and the deduction of any imputed interest attributable to our payment obligations under the tax receivables agreement. We currently estimate that the amount of any such net operating losses is immaterial.

The obligations under the tax receivables agreement are our obligations and not obligations of QL Holdings LLC. We will benefit from the remaining 15% of any realized (or deemed to be realized) cash tax savings. For purposes of the tax receivables agreement, cash savings in income tax will be computed by comparing our actual income tax liability with our hypothetical liability had we not been able to use the tax benefits subject to the applicable tax receivables agreement. The tax receivables agreement will remain in effect until all such tax benefits have been used or expired, unless the agreement is terminated early, as described below.

The actual increase in tax basis, as well as the amount and timing of any payments under the tax receivables agreement, will vary depending on a number of factors, including:

We are required under the tax receivables agreement to pay 85% of the cash tax savings, described above, if any, as they are realized (or are deemed to be realized). Except in certain circumstances, if in a given taxable year we do not have taxable income before taking into account any tax benefits subject to the tax receivables agreement, we will not be required to make payments under the tax receivables agreement for that taxable year because no tax savings will have been realized (or are deemed to be realized).

The payments that we make under the tax receivables agreement could be substantial. Assuming no material changes in relevant tax law and based on our current operating plan and other assumptions, including our estimate of the tax basis of our assets as of December 31, 2022, if all of the Class B-1 units of QL Holdings LLC were acquired by us in taxable transactions on December 31, 2022 for a price of $9.95 (which is the last reported sale price of our Class A common stock as of December 30, 2022 on the NYSE, the closing share price of the day before the Class B-1 units of QL Holdings LLC are assumed to be acquired, in accordance with the terms of the tax receivables agreement) per Class B-1 unit of QL Holdings LLC, we estimate that the amount that we would be required to pay under the tax receivables agreement would have been approximately $157 million. The actual amount we will be required to pay under the tax receivables agreement may be materially greater than this hypothetical amount, as potential future payments will vary depending on a number of factors, including those listed above. There may be a material negative effect on our liquidity if, as a result of timing discrepancies or otherwise, the payments under the tax receivables agreement exceed the actual cash tax benefits that we realize in respect of the tax attributes subject to the tax receivables agreement or distributions to us by QL Holdings LLC are not sufficient to permit us to make payments under the tax receivables agreement after it has paid taxes. Payments under the tax receivables agreement are not conditioned on Insignia’s, the Senior Executives’, or White Mountains’ continued ownership of any of our equity.

Payments under the tax receivables agreement are generally due within a specified period of time following the filing of our tax return for the taxable year with respect to which the payment obligation arises, but interest on such payments will begin to accrue at a rate of SOFR (as defined in the agreement) plus 100 basis points from the due date (without extensions) of such tax return. Late payments will generally accrue interest at a rate of SOFR plus 500 basis points.

The tax receivables agreement provides that upon certain changes of control, or if, at any time, we elect an early termination of the tax receivables agreement or are in material breach of our obligations under the tax receivables agreement, we would be required to make immediate payments to the tax receivables agreement’s counterparties equal to the present value of the anticipated future tax benefits. Such payment would be based on certain valuation assumptions and deemed events set forth in the tax receivables agreement, including the assumptions that we have sufficient taxable income to fully use such tax benefits. The benefits would be payable even though, in certain circumstances, no Class B-1 units of QL Holdings LLC have actually been exchanged and no net operating losses are actually used at the time of the accelerated payments. Accordingly, payments under the tax receivables agreement may be made years in advance of the actual realization, if any, of the anticipated tax benefits and may be significantly greater than the benefits we eventually realize.

Although we are not aware of any issue that would cause the IRS or other relevant tax authorities to challenge potential tax basis increases or other tax benefits covered by the tax receivables agreement, were the IRS to successfully challenge the tax basis increases, we would not be reimbursed for any payments previously made under the tax receivables agreement, but future payments under the tax receivables agreement, if any, would be netted against any unreimbursed payments to reflect the result of any such successful challenge by the IRS. As a result, we could make payments under the tax receivables agreement in excess of the actual cash tax savings we ultimately realize. We might not determine whether we have effectively made such excess cash payments for a number of years following the time of such payments.

In connection with the IPO, we entered into a registration rights agreement with certain of our pre-IPO existing investors, including White Mountains, Insignia, and the Senior Executives, to register for sale under the Securities Act

of 1933, as amended (“Securities Act”), shares of our Class A common stock, including those delivered in exchange for Class B-1 units of QL Holdings LLC in the circumstances described above. Subject to certain conditions and limitations, this agreement provides White Mountains, Insignia, and the Senior Executives with certain registration rights as described below. As of November 30, 2023, 34,285,821 shares of Class A common stock, including shares reserved for potential exchanges of Class B-1 units, are entitled to these registration rights.

Each of Insignia and the Founders (treating the Founders, collectively, as a single stockholder for this purpose) have the right to demand that we file up to two registration statements on Form S-1 and White Mountains has the right to demand that we file up to three registration statements on Form S-1. These registration rights are subject to specified conditions and limitations, including limitations on the number of shares included in any such registration under specified circumstances. Upon such a request, we will be required to use reasonable best efforts to effect the registration within 60 days.

At any time after we become eligible to file a registration statement on Form S-3, White Mountains, Insignia, and the Senior Executives will be entitled to have their shares of Class A common stock registered by us on a Form S-3 registration statement at our expense. These shelf registration rights are subject to specified conditions and limitations.

If we propose to register any shares of our equity securities under the Securities Act either for our own account or for the account of any other person, then White Mountains, Insignia, and the Senior Executives will be entitled to notice of the registration and will be entitled to include their shares of Class A common stock in the registration statement. These piggyback registration rights are subject to specified conditions and limitations, including the right of the underwriters, if any, to limit the number of shares included in any such registration under specified circumstances.

We will pay all expenses relating to any demand, piggyback, or shelf registration, other than underwriting discounts and commissions and any transfer taxes, subject to specified conditions and limitations. The registration rights agreement includes customary indemnification provisions, including indemnification of the participating holders of shares of Class A common stock and their directors, officers, and employees by us for any losses, claims, damages, or liabilities in respect thereof and expenses to which such holders may become subject under the Securities Act, state law, or otherwise.

The registration rights granted under the registration rights agreement will terminate upon the date the holders of shares that are a party thereto no longer hold any such shares that are entitled to registration rights.

In connection with the IPO, we entered into a stockholders’ agreement with White Mountains, Insignia, and the Founders. The stockholders’ agreement, as further described below, contains provisions related to the composition of our board of directors, the committees of our board of directors, and our corporate governance. Under the stockholders’ agreement, White Mountains, Insignia and the Founders are entitled to nominate a majority of the members of our board of directors.

Under the stockholders’ agreement, White Mountains, Insignia, and the Founders are entitled to nominate a majority of the members of our board of directors. Specifically, for so long as each of White Mountains, Insignia, and the Founders (treating the Founders, collectively, as a single stockholder for this purpose) owns at least 12.5% of our issued and outstanding shares of common stock as of the closing of this offering, such stockholder will be entitled to nominate two directors to serve on our Board of Directors. When such stockholder owns less than 12.5% but at least 5% of our issued and outstanding shares of common stock as of the closing of this offering, such stockholder will be entitled to nominate one director. White Mountains, Insignia, and the Founders have agreed in the stockholders’ agreement to vote for each other’s board nominees.

Under the stockholders’ agreement and subject to our amended and restated certificate of incorporation, our amended and restated bylaws, and applicable law, for so long as White Mountains, Insignia, and the Founders collectively own at least a majority of the issued and outstanding shares of our Class A common stock and Class B common stock, combined, the actions listed below cannot be taken by us or any of our subsidiaries without the written consent of a the holders of at least a majority of the issued and outstanding shares of common stock held by such stockholders. The actions include:

The stockholders’ agreement provides that each of White Mountains, Insignia, and the Founders and their respective affiliates will not have any duty to refrain from (1) engaging, directly or indirectly, in the same or similar business activities or lines of business as us, including those business activities or lines of business deemed to be competing with us, or (2) doing business with any of our clients, customers, or vendors. In the event that White Mountains, Insignia, or the Founders or any of their respective affiliates acquires knowledge of a potential business opportunity which may be a corporate opportunity of us, they will have no duty to communicate or offer such corporate opportunity to us.

In addition, the stockholders’ agreement prohibits certain business combination transactions in which our Class A common stock is exchanged for consideration unless each holder of shares of Class A common stock or Class B common stock is allowed to participate equally in the transaction as if the Class B common stock, together with an equivalent number of Class B units, had been exchanged for shares of Class A common stock pursuant to the exchange agreement immediately prior to the transaction.

On May 25, 2023, Steven Yi was elected to the board of directors of White Mountains.

Description of capital stock

Unless indicated differently in a prospectus, this section describes the terms of our Class A common stock that may be offered and sold by the selling stockholders under this prospectus. The following description is only a summary and is qualified in its entirety by reference to the full text of our amended and restated certificate of incorporation and amended and restated bylaws, copies of which are filed as exhibits to the registration statement of which this prospectus is a part, as well as the applicable provisions of the Delaware General Corporate Law (the “DGCL”). We encourage you to read the amended and restated certificate of incorporation, amended and restated bylaws and the applicable provisions of the DGCL, as well as our stockholders agreement, exchange agreement and registration rights agreement entered into in connection with our initial public offering of our Class A common stock, each of which are filed as exhibits to the registration statement of which this prospectus is a part, for additional information. Any accompanying prospectus supplement may add, update or change the terms and conditions of the shares of Class A common stock as described in this prospectus.

Our authorized capital stock consists of 1,000,000,000 shares of Class A common stock, par value $0.01 per share, 100,000,000 shares of Class B common stock, par value $0.01 per share and 50,000,000 shares of preferred stock, par value $0.01 per share.

The holders of Class A common stock are entitled to one vote per share on all matters to be voted upon by the stockholders. The holders of our Class A common stock and Class B common stock will vote together as a single class on all matters (including the election of directors) submitted to a vote of stockholders, unless otherwise required by law. The DGCL would require holders of our Class A common stock and Class B common stock to vote separately as a single class in the following circumstances:

Subject to preferences that may be applicable to any outstanding preferred stock, the holders of Class A common stock are entitled to receive ratably such dividends, if any, as may be declared from time to time by our Board of Directors out of funds legally available therefor.

In the event of liquidation, dissolution or winding up of our Company, the holders of Class A common stock are entitled to share ratably in all assets remaining after payment of liabilities, subject to prior distribution rights of preferred stock, if any, then outstanding.

The holders of our Class A common stock have no preemptive or conversion rights or other subscription rights. There are no redemption or sinking fund provisions applicable to the Class A common stock. The rights, preferences and privileges of holders of our common stock will be subject to those of the holders of any shares of our preferred stock we may issue in the future.

Shares of our Class B common stock are issuable only in connection with the corresponding issuance of an equal number of Class B-1 units of QL Holdings LLC. When a Class B-1 unit is issued by QLH, we will issue the holder of such Class B-1 unit one share of our Class B common stock.

Each share of our Class B common stock will be redeemed and cancelled by us if the holder exchanges one Class B-1 unit of QL Holdings LLC, together with the corresponding share of Class B common stock, for one share of Class A common stock (or, at our election, cash of an equivalent value) pursuant to the terms of the exchange agreement.

The holders of Class B common stock are entitled to one vote for each share on all matters voted upon by our stockholders. The holders of our Class A common stock and Class B common stock will vote together as a single class on all matters (including the election of directors) submitted to a vote of stockholders, unless otherwise required by law. Delaware law would require holders of our Class A common stock and Class B common stock to vote separately as a single class in the following circumstances:

The holders of our Class B common stock will not participate in any cash dividends declared by our Board of Directors.

The holders of our Class B common stock will not be entitled to receive any of our assets in the event of any dissolution, liquidation or winding up of our affairs, whether voluntary or involuntary.

In the event of our merger or consolidation with or into another company in connection with which shares of Class A common stock and Class B common stock (together with the corresponding Class B-1 units of QL Holdings LLC) are converted into, or become exchangeable for, shares of stock, other securities or property (including cash), each holder of our Class B common stock will be entitled to receive for each share of Class B common stock the same number of shares of stock as is received by holders of our Class A common stock for each share of Class A common stock, and will not be entitled, for each share of Class B common stock, to receive other securities or property (including cash). No shares of Class B common stock will have preemptive rights to purchase additional shares of Class B common stock.

Under the terms of our amended and restated certificate of incorporation, our Board of Directors has the authority to issue shares of preferred stock in one or more series and to fix the rights, preferences, privileges and restrictions thereof, including dividend rights, dividend rates, conversion rights, voting rights, terms of redemption, redemption prices, liquidation preferences and the number of shares constituting any series or the designation of such series, without further vote or action by the stockholders.

The issuance of preferred stock may have the effect of delaying, deferring or preventing a change in control of MediaAlpha, Inc. without further action by the stockholders and may adversely affect the voting and other rights of the holders of Class A common stock. At present, we have no plans to issue any preferred stock.

Some provisions of our amended and restated certificate of incorporation, amended and restated bylaws and stockholders’ agreement could make the following more difficult:

These provisions, as well as our ability to issue “blank check” preferred stock, are designed to discourage coercive takeover practices and inadequate takeover bids. These provisions are also designed to encourage persons seeking to acquire control of us to first negotiate with our Board of Directors. We believe that the benefits of increased protection give us the potential ability to negotiate with the proponent of an unfriendly or unsolicited proposal to acquire or restructure us, and that the benefits of this increased protection outweigh the disadvantages of discouraging those proposals, because negotiation of those proposals could result in an improvement of their terms.

Our Board of Directors consists of nine directors, excluding any directors elected by holders of any preferred stock pursuant to provisions applicable in the case of defaults and subject to applicable laws and stock exchange regulations. The exact number of directors is fixed from time to time by resolution of the board. In accordance with our amended and restated certificate of incorporation and our amended and restated bylaws, our Board of Directors is divided into three staggered classes of directors, as nearly equal in number as possible. At each annual meeting of our stockholders, our stockholders elect a class of directors for a three-year term to succeed the directors of the same class whose terms are then expiring. As a result, a portion of our Board of Directors will be elected each year. There is no limit on the number of terms a director may serve on our Board of Directors. The division of our Board of Directors into three classes with staggered three-year terms may have the effect of discouraging, delaying or preventing a transaction involving a change in control.

Pursuant to the stockholders’ agreement we entered into with White Mountains, Insignia, and the Founders in connection with our IPO, for so long as each of White Mountains, Insignia, and the Founders (treating the Founders as a single stockholder for this purpose) owns at least 12.5% of the issued and outstanding shares of common stock as of the closing of our IPO, such stockholder will be entitled to nominate two directors to serve on our Board of Directors. When such stockholder owns less than 12.5% but at least 5% of the issued and outstanding shares of common stock as of the closing of our IPO, such stockholder will be entitled to nominate one director. White Mountains, Insignia, and the Founders have agreed in the stockholders’ agreement to vote for each other’s board nominees.

Our amended and restated certificate of incorporation and amended and restated bylaws provide that (a) prior to the date on which White Mountains, Insignia, and the Founders cease to collectively own at least a majority in voting power of all shares entitled to vote generally in the election of directors, directors may be removed with or without cause upon the affirmative vote of holders of at least a majority of the voting power of all the then outstanding shares of stock entitled to vote generally in the election of directors, and (b) on and after the date on which White Mountains, Insignia, and the Founders cease to collectively own at least a majority in voting power of all outstanding shares entitled to vote generally in the election of directors, directors may be removed only for cause and only upon the affirmative vote of holders of at least 75% of the voting power of all the then outstanding shares of stock entitled to vote generally in the election of directors, voting together as a single class.

In addition, our amended and restated certificate of incorporation provides that any newly-created directorship on the Board of Directors that results from an increase in the number of directors and any vacancy occurring on the Board of Directors shall be filled only by a majority of the directors then in office, although less than a quorum, or by a sole remaining director.

The DGCL provides that stockholders are not entitled to the right to cumulate votes in the election of directors unless our amended and restated certificate of incorporation provides otherwise. Our amended and restated certificate of incorporation does not authorize cumulative voting.

The DGCL permits stockholder action by written consent unless otherwise provided by our amended and restated certificate of incorporation. Our amended and restated certificate of incorporation permits stockholder action by written consent, but precludes stockholder action by written consent after the date on which White Mountains, Insignia, and the Founders cease to collectively own at least a majority in voting power of all shares entitled to vote generally in the election of our directors.

Our amended and restated certificate of incorporation and our amended and restated bylaws provide that special meetings of stockholders may be called only by or at the direction of the Board of Directors, the chairman of the Board of Directors, the chief executive officer or, so long as White Mountains, Insignia, and the Founders collectively own at least a majority in voting power of shares of our common stock, any such stockholder, subject to certain limitations. Our amended and restated certificate of incorporation and our amended and restated bylaws specifically deny any power of any other person to call a special meeting.

The affirmative vote of holders of at least a majority of the voting power of our outstanding shares of stock is generally required to amend provisions of our amended and restated certificate of incorporation. However, if White Mountains, Insignia, and the Founders cease to collectively own at least a majority of all of the outstanding shares of our capital stock entitled to vote, the affirmative vote of holders of at least 75% of the voting power of our outstanding shares of stock will generally be required to amend certain provisions of our amended and restated certificate of incorporation.

Our amended and restated bylaws may generally be altered, amended or repealed, and new bylaws may be adopted, by the affirmative vote of a majority of directors present at any regular or special meeting of the Board of Directors called for that purpose or by the affirmative vote of holders of at least a majority of the voting power of our outstanding shares of voting stock. However, if White Mountains, Insignia, and the Founders cease to collectively own at least a majority of all of the outstanding shares of our capital stock entitled to vote, the affirmative vote of holders of at least 75% of the voting power of our outstanding shares of stock will generally be required to alter, amend or repeal any provision of our amended and restated bylaws, or adopt new bylaws.

Our amended and restated bylaws also impose some procedural requirements on stockholders who wish to:

Under these procedural requirements, in order to bring a proposal before a meeting of stockholders, a stockholder must deliver timely notice of a proposal pertaining to a proper subject for presentation at the meeting to our corporate secretary along with the following:

To be timely, a stockholder must generally deliver notice:

In order to submit a nomination for our Board of Directors, a stockholder must also submit any information with respect to the nominee that we would be required to be included in a proxy statement, as well as certain other information. If a stockholder fails to follow the required procedures, the stockholder’s proposal or nominee will be ineligible and will not be voted on by our stockholders. These provisions may deter, delay or discourage a potential acquirer from conducting a solicitation of proxies to elect the acquirer’s own slate of directors or otherwise attempting to influence or obtain control of the Company.

Our authorized but unissued shares of common stock and preferred stock are available for future issuance without stockholder approval. These additional shares may be utilized for a variety of corporate purposes, including future public offerings to raise additional capital, corporate acquisitions and employee benefit plans. The existence of authorized but unissued shares of common stock and preferred stock could render more difficult or discourage an attempt to obtain control of a majority of our common stock by means of a proxy context, tender offer, merger, or otherwise.

We elected in our amended and restated certificate of incorporation not to be subject to Section 203 of the DGCL, an anti-takeover law. In general, Section 203 prohibits a publicly held Delaware corporation from engaging in a business combination, such as a merger, with a person or group owning 15% or more of the corporation’s voting stock for a period of three years following the date the person became an interested stockholder, unless (with certain exceptions) the business combination or the transaction in which the person became an interested stockholder is approved in a prescribed manner. Accordingly, we will not be subject to any anti-takeover effects of Section 203. Nevertheless, our amended and restated certificate of incorporation contains provisions that have the same effect as Section 203, except that they will provide that each of White Mountains, Insignia, and the Founders and their respective affiliates and transferees will not be deemed to be “interested stockholders,” regardless of the percentage of our voting stock owned by them, and accordingly will not be subject to such restrictions.

Our amended and restated certificate of incorporation provides that no director will be personally liable to us or our stockholders for monetary damages for breach of fiduciary duty as a director, except as required by applicable law, as in effect from time to time. Currently, Delaware law requires that liability be imposed for the following:

As a result, neither we nor our stockholders have the right, through stockholders’ derivative suits on our behalf, to recover monetary damages against a director for breach of fiduciary duty as a director, including breaches resulting from grossly negligent behavior, except in the situations described above.

Our amended and restated bylaws provide that, to the fullest extent permitted by law, we will indemnify any officer or director of our company against all damages, claims and liabilities arising out of the fact that the person is or was our director or officer, or served any other enterprise at our request as a director, officer, employee, agent or fiduciary. We will reimburse the expenses, including attorneys’ fees, incurred by a person indemnified by this provision when we receive an undertaking to repay such amounts if it is ultimately determined that the person is not entitled to be indemnified by us. Amending these provisions will not reduce our indemnification obligations relating to actions taken before an amendment.

Our amended and restated certificate of incorporation and stockholders’ agreement provide that each of White Mountains, Insignia, and the Founders and their respective affiliates do not have any duty to refrain from (1) engaging, directly or indirectly, in the same or similar business activities or lines of business as us, including those business activities or lines of business deemed to be competing with us, or (2) doing business with any of our clients, customers or vendors. In the event that White Mountains, Insignia or the Founders or any of their respective affiliates acquires knowledge of a potential business opportunity which may be a corporate opportunity for us, they will have no duty to communicate or offer such corporate opportunity to us. Our amended and restated certificate of incorporation and stockholders’ agreement also provide that, to the fullest extent permitted by law, none of such stockholders or their respective affiliates will be liable to us, for breach of any fiduciary duty or otherwise, by reason of the fact that any such stockholder or any of its affiliates directs such corporate opportunity to another person, or otherwise does not communicate information regarding such corporate opportunity to us, and we will waive and renounce any claim that such business opportunity constituted a corporate opportunity that should have been presented to us.

Our amended and restated certificate of incorporation requires, to the fullest extent permitted by law, that derivative actions brought on our behalf, any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders and other similar actions, may be brought only in specified courts in the State of Delaware. In addition, our amended and restated certificate of incorporation provides that the federal district courts of the United States are the exclusive forum for resolving any complaint asserting a cause of action arising under the Securities Act but that the forum selection provision does not apply to claims brought to enforce a duty or liability created by the Exchange Act. Although we believe this provision will benefit us by providing increased consistency in the application of Delaware law in the types of lawsuits to which it applies, a court may determine that this provision is unenforceable, and to the extent it is enforceable, the provision may have the effect of discouraging lawsuits against our directors and officers.

Our amended and restated bylaws require, except to the extent prohibited by the DGCL, that in all derivative actions brought on our behalf, actions against directors, officers and employees for breach of a fiduciary duty and other similar actions, the initiating party will reimburse us and any officer, director or other employee for all fees, costs and expenses incurred in connection with such action if such initiating party does not substantially achieve the full remedy

sought. While application of this standard will necessarily need to take into account the particular facts, circumstances and equities of any particular claim, we would expect a claiming party to be required to prevail on the merits on substantially all of the claims asserted in the complaint and, as a result, receive substantially the full remedy that it was seeking (including, if applicable, any equitable remedy) in order to avoid responsibility for reimbursing such fees, costs and expenses. Although we believe this provision will benefit us by discouraging meritless lawsuits against us and our directors, officers and employees, the provision may have the effect of discouraging lawsuits that could benefit us.

The transfer agent and registrar for the common stock is Computershare Trust Company, N.A.

Our Class A common stock is listed on the NYSE under the symbol “MAX.”

Material U.S. federal income and estate tax considerations for non-U.S. holders of Class A common stock

The following discussion is a summary of the material U.S. federal income tax consequences to Non-U.S. Holders (as defined below) of the purchase, ownership and disposition of our Class A common stock sold pursuant to this offering, but does not purport to be a complete analysis of all potential tax effects. The effects of other U.S. federal tax laws, such as estate and gift tax laws, and any applicable state, local or non-U.S. tax laws are not discussed. This discussion is based on the Code, Treasury Regulations promulgated thereunder, judicial decisions, and published rulings and administrative pronouncements of the IRS, in each case in effect as of the date hereof. These authorities may change or be subject to differing interpretations. Any such change or differing interpretation may be applied retroactively in a manner that could adversely affect a Non-U.S. Holder of our Class A common stock. We have not sought and will not seek any rulings from the IRS regarding the matters discussed below. We cannot assure that the IRS or a court will not take a contrary position to that discussed below regarding the tax consequences of the purchase, ownership and disposition of our Class A common stock.

This discussion is limited to Non-U.S. Holders that hold our Class A common stock as a “capital asset” within the meaning of Section 1221 of the Code (generally, property held for investment). This discussion does not address all U.S. federal income tax consequences relevant to a Non-U.S. Holder’s particular circumstances, including the impact of the Medicare contribution tax on net investment income. In addition, it does not address consequences relevant to Non-U.S. Holders subject to special rules, including, without limitation:

If an entity or arrangement treated as a partnership for U.S. federal income tax purposes holds our Class A common stock, the tax treatment of a partner in the partnership will depend on the status of the partner, the activities of the partnership and certain determinations made at the partner level. Accordingly, partnerships holding our Class A common stock and the partners in such partnerships should consult their tax advisors regarding the U.S. federal income tax consequences to them.

THIS DISCUSSION IS FOR INFORMATIONAL PURPOSES ONLY AND IS NOT TAX ADVICE. INVESTORS SHOULD CONSULT THEIR TAX ADVISORS WITH RESPECT TO THE APPLICATION OF THE U.S. FEDERAL INCOME TAX LAWS TO THEIR PARTICULAR SITUATIONS AS WELL AS ANY TAX CONSEQUENCES OF THE PURCHASE, OWNERSHIP AND DISPOSITION OF OUR CLASS A COMMON STOCK ARISING UNDER THE U.S. FEDERAL ESTATE OR GIFT TAX LAWS OR UNDER THE LAWS OF ANY STATE, LOCAL OR NON-U.S. TAXING JURISDICTION OR UNDER ANY APPLICABLE INCOME TAX TREATY.

For purposes of this discussion, a “Non-U.S. Holder” is any beneficial owner of our Class A common stock that is neither a “U.S. person” nor an entity treated as a partnership for U.S. federal income tax purposes. A U.S. person is any person that, for U.S. federal income tax purposes, is or is treated as any of the following:

Subject to the discussion below on effectively connected income and FATCA withholding, dividends paid to a Non-U.S. Holder of our Class A common stock will be subject to U.S. federal withholding tax at a rate of 30% of the gross amount of the dividends (or such lower rate specified by an applicable income tax treaty, provided the Non-U.S. Holder furnishes a valid IRS Form W-8BEN or W-8BEN-E (or other applicable documentation) certifying qualification for the lower treaty rate). A Non-U.S. Holder that does not timely furnish the required documentation, but that qualifies for a reduced treaty rate, may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for refund with the IRS. Non-U.S. Holders should consult their tax advisors regarding their entitlement to benefits under any applicable income tax treaty.

If dividends paid to a Non-U.S. Holder are effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States (and, if required by an applicable income tax treaty, the Non-U.S. Holder maintains a permanent establishment or fixed base in the United States to which such dividends are attributable), the Non-U.S. Holder will be exempt from the U.S. federal withholding tax described above. To claim the exemption, the Non-U.S. Holder must furnish to the applicable withholding agent a valid IRS Form W-8ECI, certifying that the dividends are effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States.

Any such effectively connected dividends will be subject to U.S. federal income tax on a net income basis at the regular graduated rates applicable to U.S. Holders. A Non-U.S. Holder that is a corporation also may be subject to a branch profits tax at a rate of 30% (or such lower rate specified by an applicable income tax treaty) on such effectively connected dividends, as adjusted for certain items. Non-U.S. Holders should consult their tax advisors regarding any applicable tax treaties that may provide for different rules.

Subject to the discussion below regarding backup withholding and FATCA withholding, in general, a Non-U.S. Holder will not be subject to U.S. federal income tax on any gain realized upon the sale or other taxable disposition of our Class A common stock unless:

Gain described in the first bullet point above generally will be subject to U.S. federal income tax on a net income basis at the regular graduated rates applicable to U.S. Holders. A Non-U.S. Holder that is a corporation also may be subject to a branch profits tax at a rate of 30% (or such lower rate specified by an applicable income tax treaty) on such effectively connected gain, as adjusted for certain items.

Gain described in the second bullet point above will be subject to U.S. federal income tax at a rate of 30% (or such lower rate specified by an applicable income tax treaty), which may be offset by U.S. source capital losses of the Non-U.S. Holder (even though the individual is not considered a resident of the United States), provided the Non-U.S. Holder has timely filed U.S. federal income tax returns with respect to such losses.

With respect to the third bullet point above, we believe we currently are not, and do not anticipate becoming, a USRPHC. Because the determination of whether we are a USRPHC depends, however, on the fair market value of our USRPIs relative to the fair market value of our non-U.S. real property interests and our other business assets, there can be no assurance we currently are not a USRPHC or will not become one in the future. Even if we are or were to become a USRPHC, gain arising from the sale or other taxable disposition by a Non-U.S. Holder of our Class A common stock will not be subject to U.S. federal income tax if our Class A common stock is “regularly traded,” as defined by applicable Treasury Regulations, on an established securities market during the calendar year in which the disposition occurs, and such Non-U.S. Holder owned, actually and constructively, 5% or less of our outstanding Class A common stock throughout the shorter of the five-year period ending on the date of the sale or other taxable disposition or the Non-U.S. Holder’s holding period. If we are a USRPHC and the foregoing exception does not apply to a disposition of our Class A common stock by a Non-U.S. Holder, such Non-U.S. Holder generally will be taxed on its net gain derived from the disposition at the regular U.S. federal income tax rates applicable to U.S. Holders. No assurance can be provided that our Class A common stock will continue to be regularly traded on an established securities market for purposes of the rules described above.

Non-U.S. Holders should consult their tax advisors regarding potentially applicable income tax treaties that may provide for different rules.

Payments of dividends on our Class A common stock will not be subject to backup withholding, provided the applicable withholding agent does not have actual knowledge or reason to know the holder is a U.S. person (as defined in the Code) and the holder either certifies its non-U.S. status, such as by furnishing a valid IRS Form W-8BEN, W-8BEN-E or W-8ECI (or other applicable or successor form), or otherwise establishes an exemption. However, information returns are required to be filed with the IRS in connection with any dividends on our Class A common stock paid to the Non-U.S. Holder, regardless of whether any tax was actually withheld. In addition, proceeds of the sale or other taxable disposition of our Class A common stock within the United States or conducted through certain U.S.-related brokers generally will not be subject to backup withholding or information reporting if the applicable withholding agent receives the certification described above and does not have actual knowledge or reason to know that such holder is a U.S. person, or the holder otherwise establishes an exemption. Proceeds of a disposition of our Class A common stock conducted through a non-U.S. office of a non-U.S. broker generally will not be subject to backup withholding or information reporting. However, for information reporting purposes, dispositions effected through a non-U.S. office of a broker with substantial U.S. ownership or operations generally will be treated in a manner similar to dispositions effected through a U.S. office of a broker. Non-U.S. Holders should consult their own tax advisors regarding the application of the information reporting and backup withholding rules to them.

Copies of information returns that are filed with the IRS may also be made available under the provisions of an applicable treaty or agreement to the tax authorities of the country in which the Non-U.S. Holder resides or is established.

Backup withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be allowed as a refund or a credit against a Non-U.S. Holder’s U.S. federal income tax liability, if any, provided the required information is timely furnished to the IRS.

Withholding taxes may be imposed under Sections 1471 to 1474 of the Code and the U.S. Treasury Regulations and other administrative guidance issued thereunder, such Sections commonly referred to as the Foreign Account Tax Compliance Act, or FATCA, on certain types of payments made to non-U.S. financial institutions and certain other non-U.S. entities. Specifically, a 30% withholding tax may be imposed on dividends on, or (subject to the proposed Treasury Regulations discussed below) gross proceeds from the sale or other disposition of, our Class A common stock paid to a “foreign financial institution” or a “non-financial foreign entity” (each as defined in the Code), unless (1) the foreign financial institution undertakes certain diligence and reporting obligations, (2) the non-financial foreign entity either certifies it does not have any direct or indirect “substantial United States owners” (as defined in the Code) or furnishes identifying information regarding each substantial United States owner, or (3) the foreign financial institution or non-financial foreign entity otherwise qualifies for an exemption from these rules. If the payee is a foreign financial institution and is subject to the diligence and reporting requirements in (1) above, it must enter into an agreement with the U.S. Department of the Treasury requiring, among other things, that it undertake to identify accounts held by certain “specified United States persons” or “United States-owned foreign entities” (each as defined in the Code), annually report certain information about such accounts, and withhold 30% on certain payments to non-compliant foreign financial institutions and certain other account holders. Foreign financial institutions located in jurisdictions that have an intergovernmental agreement with the United States governing FATCA may be subject to different rules.

Under the applicable Treasury Regulations and administrative guidance, withholding under FATCA generally applies to payments of dividends on our Class A common stock. Although withholding under FATCA would have applied also to payments of gross proceeds from the sale or other disposition of stock on or after January 1, 2019, recently proposed Treasury Regulations eliminate FATCA withholding on payments of gross proceeds entirely. Taxpayers generally may rely on these proposed Treasury Regulations until final Treasury Regulations are issued.

Prospective investors should consult their tax advisors regarding the potential application of withholding under FATCA to their investment in our Class A common stock.

Plan of distribution

As of the date of this prospectus, we have not been advised by the selling stockholders as to any plan of distribution. The selling stockholders, or their pledgees, donees (including charitable organizations), transferees or other successors-in-interest, may from time to time, sell any or all of the shares of Class A common stock offered by this prospectus either directly by such person, or through underwriters, dealers or agents or on any exchange on which the shares of Class A common stock may from time to time be traded, in the over-the-counter market, or in independently negotiated transactions or otherwise. The selling stockholders may use any one or more of the following methods when selling shares of our Class A common stock:

The selling stockholders may also sell shares of common stock under Rule 144 under the Securities Act, if available, or otherwise as permitted pursuant to applicable law, rather than under this prospectus.

The selling stockholders may distribute the shares of Class A common stock covered by this prospectus from time to time in one or more transactions: (i) at a fixed price or prices, which may be changed from time to time; (ii) at market prices prevailing at the time of sale; (iii) at prices related to the prevailing market prices; or (iv) at negotiated prices.

Broker-dealers engaged by the selling stockholders may arrange for other broker-dealers to participate in sales. Broker-dealers may receive commissions or discounts from the selling stockholders (or, if any broker-dealer acts as agent for the purchaser of the shares of Class A common stock under this prospectus, from the purchaser) in amounts to be negotiated, but, except as set forth in a supplement to the prospectus, in the case of any agency transaction not in excess of a customary brokerage commission in compliance with Financial Industry Regulatory Authority Rule 2121 (“Rule 2121”), and, in the case of a principal transaction a markup or markdown in compliance with Rule 2121.

In connection with sales of the shares of Class A common stock under this prospectus or interests therein, the selling stockholders may enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of the shares of Class A common stock in the course of hedging the positions they assume. The selling stockholders may also sell the shares of Class A common stock short and deliver them to close their short positions, or loan or pledge the shares of Class A common stock to broker-dealers that in turn may sell them. The selling stockholders may also enter into option or other transactions with broker-dealers or other financial institutions or the creation of one or more derivative securities that require the delivery to such broker-dealer or other financial institution of shares of Class A common stock offered by this prospectus, which shares such broker-dealer or other

financial institution may resell pursuant to this prospectus (as supplemented or amended to reflect such transaction). Notwithstanding the foregoing, the selling stockholders have been advised that they may not deliver the shares of Class A common stock registered on the registration statement of which this prospectus forms a part to cover short sales of the shares of Class A common stock made prior to the date the registration statement has been declared effective by the SEC.

The selling stockholders may from time to time pledge or grant a security interest in some or all of the shares of Class A common stock owned by them that are subject to this prospectus, and the pledgees or secured parties will, upon foreclosure in the event of default, be deemed to be selling stockholders. If and to the extent such foreclosure occurs, the number of securities under this prospectus on behalf of such selling stockholder will decrease by the number of securities subject to any such foreclosure. The selling stockholders may also transfer and donate the shares of Class A common stock in other circumstances in which case the transferees, donees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus.

A selling stockholder that is an entity may elect to make an in-kind distribution of shares of Class A common stock to its members, general or limited partners, beneficiaries or stockholders pursuant to the registration statement of which this prospectus is a part by delivering a prospectus.

The selling stockholders and any underwriters, dealers or agents that participate in distribution of the shares of Class A common stock may be deemed to be underwriters under the Securities Act, and any profit on sale of the shares of Class A common stock by them and any discounts, commissions or concessions received by any underwriter, dealer or agent may be deemed to be underwriting discounts and commissions under the Securities Act. We have agreed to indemnify the selling stockholders against certain liabilities, including certain liabilities under the Securities Act.

To the extent required, this prospectus may be amended or supplemented from time to time to describe a specific plan of distribution. There can be no assurances that the selling stockholders will sell any or all of the shares of Class A common stock offered under this prospectus.

Legal matters

Certain legal matters in connection with the offered shares of Class A common stock will be passed upon for us by Cravath, Swaine & Moore LLP. Certain legal matters in connection with the offered shares of Class A common stock may be passed on for any agents, dealers or underwriters by their counsel named in the applicable prospectus supplement.

Experts

The financial statements and management’s assessment of the effectiveness of internal control over financial reporting (which is included in Management’s Report on Internal Control Over Financial Reporting) incorporated in this prospectus by reference to the Annual Report on Form 10-K for the year ended December 31, 2022 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

Where you can find more information

MediaAlpha, Inc. files annual, quarterly and current reports, proxy statements and other information with the SEC. The SEC maintains an Internet site that contains reports, proxy and information statements, and other information regarding issuers, including MediaAlpha, Inc., that file electronically with the SEC at http://www.sec.gov. MediaAlpha, Inc.’s SEC filings are also available at our website: https://investors.mediaalpha.com. Except for documents filed with the SEC and incorporated by reference into this prospectus, no information contained in, or that can be accessed through, our website is to be considered part of this prospectus.

Certain documents incorporated by reference

The rules of the SEC allow us to incorporate by reference into this prospectus the information we file with the SEC. This means that we are disclosing important information to you by referring to other documents. The information incorporated by reference is considered to be part of this prospectus, except for any information superseded by information contained directly in this prospectus. We incorporate by reference the documents listed below (other than any portions thereof, which under the Exchange Act, and applicable SEC rules, are not deemed “filed” under the Exchange Act):

We also incorporate by reference into this prospectus all future reports and other documents (other than the Current Reports on Form 8-K or portions thereof that are “furnished” under Item 2.02 or Item 7.01 of Form 8-K) that we file with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (i) after the date of the initial filing of this Post-Effective Amendment No. 2 of which this prospectus forms a part and prior to effectiveness of this Post-Effective Amendment No. 2, and (ii) on and after the date of this prospectus but prior to the termination or completion of the offering of shares of Class A common stock under this prospectus.

Any statement contained in a document incorporated by reference in this prospectus shall be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus or in any other subsequently filed document that is also incorporated by reference in this prospectus modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus.

MediaAlpha, Inc.

Class A Common Stock

Preliminary Prospectus Supplement

           , 2024