PIMCO Dynamic Income Strategy Fund (PDX) N-CSRSCertified semi-annual shareholder report (management investment company)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT

INVESTMENT COMPANIES

Investment Company Act file number: 811-23390

PIMCO Energy and Tactical Credit

Opportunities Fund

(Exact name of registrant as specified in charter)

1633 Broadway, New York, NY 10019

(Address of principal executive offices)

Bijal Parikh

Treasurer (Principal Financial & Accounting Officer)

650 Newport Center Drive

Newport Beach, CA 92660

(Name and address of agent for service)

Copies to:

David C. Sullivan

Ropes & Gray LLP

Prudential Tower

800 Boylston Street

Boston, MA 02199

Registrant’s telephone number, including area code: (844) 337-4626

Date of fiscal year end: June 30

Date of reporting period: December 31, 2020

Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Item 1.      Reports to Shareholders.

The following is a copy of the report transmitted to shareholders pursuant to Rule 30e-1 under the Investment Company Act of 1940, as amended (the “1940 Act”) (17 CFR 270.30e-1).

PIMCO CLOSED-END FUNDS

Semiannual Report

December 31, 2020

PIMCO Energy and Tactical Credit Opportunities Fund | NRGX | NYSE

As permitted by regulations adopted by the Securities and Exchange Commission, paper copies of the Fund’s annual and semi-annual shareholder reports will no longer be sent by mail, unless you specifically request paper copies of the reports from the Fund or from your financial intermediary, such as a broker-dealer or bank. Instead, the reports will be made available on the Fund’s website, pimco.com/literature, and you will be notified by mail each time a report is posted and provided with a website link to access the report.

If you already elected to receive shareholder reports electronically, you will not be affected by this change and you need not take any action. You may elect to receive shareholder reports and other communications from the Fund electronically by visiting pimco.com/edelivery or by contacting your financial intermediary, such as a broker-dealer or bank.

You may elect to receive all future reports in paper free of charge. If you own these shares through a financial intermediary, such as a broker-dealer or bank, you may contact your financial intermediary to request that you continue to receive paper copies of your shareholder reports. If you invest directly with the Fund, you can inform the Fund that you wish to continue receiving paper copies of your shareholder reports by calling 844.337.4626. Your election to receive reports in paper will apply to all funds held with the fund complex if you invest directly with the Fund or to all funds held in your account if you invest through a financial intermediary, such as a broker-dealer or bank.

Table of Contents

Letter from the Chair of the Board & President

Dear Shareholder,

We hope that you and your family are remaining safe and healthy during these challenging times. We continue to work tirelessly to navigate markets and manage the assets that you have entrusted with us. Following this letter is the PIMCO Energy and Tactical Credit Opportunities Fund’s Semiannual Report, which covers the six-month reporting period ended December 31, 2020. On the subsequent pages, you will find specific details regarding investment results and a discussion of the factors that most affected performance during the reporting period.

For the six-month reporting period ended December 31, 2020

The global economy was severely impacted by the repercussions related to the COVID-19 pandemic. Looking back before the reporting period began, second-quarter 2020 U.S. annualized gross domestic product (“GDP”) was -31.4%. This represented the steepest quarterly decline on record. With the economy reopening, third-quarter GDP growth was 33.4%, the largest quarterly increase on record. The Commerce Department’s initial estimate for fourth-quarter annualized GDP growth — released after the reporting period ended — was 4.0%.

The Federal Reserve (the “Fed”) took unprecedented actions to support the economy and keep markets functioning properly. In early March 2020, before the reporting period began, the Fed lowered the federal funds rate to a range between 1.00% and 1.25%. Later in the month, the Fed lowered the rate to a range between 0.00% and 0.25%. On March 23, the Fed announced that it would make unlimited purchases of Treasury and mortgage securities and, for the first time, it would purchase corporate bonds on the open market. In August 2020, Fed Chair Jerome Powell said the central bank had changed how it viewed the trade-off between lower unemployment and higher inflation. Per Powell’s statement, the Fed’s new approach to setting U.S. monetary policy will entail letting inflation run higher, which could mean that interest rates remain low for an extended period. Meanwhile, in March 2020, the U.S. government passed a total of roughly $2.8 trillion in fiscal stimulus measures to aid the economy. A subsequent $900 billion stimulus package was finalized in December 2020.

Economies outside the U.S. were significantly impacted by the pandemic too. In its October 2020 World Economic Outlook Update, the International Monetary Fund (“IMF”) stated that it expects 2020 GDP in the eurozone, U.K. and Japan will be -8.3%, -9.8% and -5.3%, respectively. For comparison purposes, the GDP of these economies expanded 1.3%, 1.5% and 0.7%, respectively, in 2019.

Against this backdrop, central banks and governments around the world took a number of aggressive actions. Looking back, in March 2020, the European Central Bank (the “ECB”) unveiled a new €750 billion bond-buying program, which was subsequently expanded by another €600 billion in June 2020. In July, the European Union agreed on a €1.8 trillion spending package to bolster its economy. In December 2020, the ECB expanded its monetary stimulus program by another €500 billion.

The Bank of England reduced its key lending rate to 0.10% — a record low — in March, added £100 billion to its quantitative easing program in June, and increased its bond-buying program by £150 billion to £895 billion in November. Finally, toward the end of the year, the U.K. and the European Union agreed to a long-awaited Brexit deal. Elsewhere, the Bank of Japan maintained its short-term interest rate at -0.10%, while increasing the target for its holdings of corporate bonds to ¥4.2 trillion from ¥3.2 trillion. In May 2020, the Japanese government doubled its stimulus measures with a ¥117 trillion package. Finally, in December 2020, the Bank of Japan announced a new ¥73.6 trillion stimulus package.

Short-term U.S. Treasury yields edged modestly lower, whereas long-term yields moved higher, albeit from a very low level during the reporting period. The yield on the benchmark 10-year U.S. Treasury note was 0.93% at the end of the reporting period, versus 0.66% on June 30, 2020. The Bloomberg Barclays Global Treasury Index (USD Hedged), which tracks fixed-rate, local currency government debt of investment grade countries, including both developed and emerging markets, returned 0.78%. Meanwhile, the Bloomberg Barclays Global Aggregate Credit Index (USD Hedged), a widely used index of global investment grade credit bonds, returned 4.20%. Riskier fixed income asset classes, including high yield corporate bonds and emerging market debt, also rallied. The ICE BofAML Developed Markets High Yield Constrained Index (USD Hedged), a widely used index of below-investment-grade bonds, returned 10.82%, whereas emerging market external debt, as represented by the JPMorgan Emerging Markets Bond Index (EMBI) Global (USD Hedged), returned 7.89%. Emerging market local bonds, as represented by the JPMorgan Government Bond Index-Emerging Markets Global Diversified Index (Unhedged), returned 10.29%.

Despite the headwinds from the pandemic, global equities produced strong results. All told, U.S. equities, as represented by the S&P 500 Index, returned 22.16%, partially fueled by a sharp rally in November and December 2020, because, in our view, investor sentiment improved after positive COVID-19 vaccine news. Global equities, as represented by the MSCI World Index, returned 23.00%, whereas emerging market equities, as measured by the MSCI Emerging Markets Index, returned 31.14%. Meanwhile, Japanese equities, as represented by the Nikkei 225 Index (in JPY), returned 24.12% and European equities, as represented by the MSCI Europe Index (in EUR), returned 10.91%.

Commodity prices were volatile and produced mixed results. When the reporting period began, Brent crude oil was approximately $41 a barrel. Brent crude oil ended the reporting period at roughly $52 a barrel. We believe that oil prices rallied because producers reduced their output and investors anticipated stronger demand as global growth improved and several new COVID-19 vaccines were introduced. Elsewhere, copper prices moved higher, while gold declined.

Letter from the Chair of the Board & President (Cont.)

Finally, there were also periods of volatility in the foreign exchange markets, in our view due to fluctuating economic growth, trade conflicts and changing central bank monetary policies, along with the U.S. election and several geopolitical events. The U.S. dollar weakened against a number of other major currencies. For example, the U.S. dollar returned -8.74%, -10.23% and -4.53% versus the euro, the British pound and the Japanese yen, respectively.

Thank you for the assets you have placed with us. We deeply value your trust, and we will continue to work diligently to meet your broad investment needs. For any questions regarding your PIMCO Closed-End Funds investment, please contact your financial adviser, or call the Fund’s shareholder servicing agent at (844) 33-PIMCO. We also invite you to visit our website at pimco.com to learn more about our global viewpoints.

Sincerely,

Deborah A. DeCotis		Eric D. Johnson
Chair of the Board of Trustees		President

Past performance is no guarantee of future results. Unless otherwise noted, index returns reflect the reinvestment of income distributions and capital gains, if any, but do not reflect fees, brokerage commissions or other expenses of investing. It is not possible to invest directly in an unmanaged index.

Important Information About the Fund

The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in investments linked to the energy sector and in investments linked to the credit sectors. Investments linked to the energy sector may include investments in equity and debt securities, warrants, rights issues, and restricted securities of energy companies, including, but not limited to, publicly traded corporations; publicly traded partnerships (including master limited partnerships and limited liability companies that are treated as partnerships for U.S. federal income tax purposes (“MLPs”)); certain affiliates of MLPs; publicly traded limited liability companies that are treated as corporations for U.S. federal income tax purposes; private partnerships and limited liability companies; royalty trusts; and special purpose entities used to gain access to these types of investments. The Fund may also invest in derivative instruments that provide economic exposure to these types of investments.

MLPs that concentrate in the energy sector are subject to risks associated with the energy sector. MLP units may trade infrequently and in limited volume, and they may be subject to abrupt or erratic price movements. MLP common units and other equity securities issued by MLPs are subject to the risks associated with all equity investments, including the risk that the value of such equity securities will decline due to general market or economic conditions, perceptions regarding MLPs or the energy sector, changes in interest rates, changes in a particular issuer’s financial condition, or unfavorable or unanticipated poor performance of a particular issuer. Debt securities issued by MLPs are subject to the risks associated with all debt investments, including interest rate risk, prepayment risk, credit risk, and, as applicable, high yield securities risk and distressed and defaulted securities risk. Many MLPs and other companies in which the Fund may invest operate natural gas, natural gas liquids, crude oil, refined products, coal or other facilities within the energy sector. Investments in MLPs are also generally subject to many of the risks that apply to partnerships. For example, holders of the units of MLPs may have limited control and limited voting rights on matters affecting the partnership. Also, investments in MLPs or other entities that hold a general partner or managing member interest in MLPs can lead to liability in certain circumstances for amounts greater than the amount of investment in such interests. There may be fewer corporate protections afforded investors in an MLP than investors in a corporation. Conflicts of interest may exist among unit holders, subordinated unit holders and the general partner of an MLP, including those arising from incentive distribution payments.

The Fund has a fundamental policy to invest at least 25% of its total assets in the energy industry. As a result, the Fund will be susceptible to adverse economic, environmental or regulatory occurrences affecting that sector. The energy sector is highly regulated. MLPs and other entities operating in the energy sector are subject to significant regulation of nearly every aspect of their operations by federal, state and local governmental agencies. MLPs and other entities operating in the energy sector are subject to many dangers inherent in the production, exploration, management, transportation, processing, and distribution of natural gas, natural gas liquids (including propane), crude oil, refined petroleum and petroleum products and other hydrocarbons. A downturn in the energy sector could have a larger impact on the Fund than on funds that are broadly diversified across many sectors and industries. At times, the performance of securities of companies in the energy sector may lag behind the performance of other sectors or industries or the broader market as a whole.

The use of derivatives may subject the Fund to greater volatility than investments in traditional securities. The Fund may use derivative instruments for hedging purposes or as part of an investment strategy. Use of these instruments may involve certain costs and risks such as liquidity risk, interest rate risk, market risk, call risk, credit risk, leverage risk, management risk and the risk that the Fund

Important Information About the Fund (Cont.)

may not be able to close out a position when it would be most advantageous to do so. Changes in regulation relating to the Fund’s use of derivatives and related instruments could potentially limit or impact the Fund’s ability to invest in derivatives, limit the Fund’s ability to employ certain strategies that use derivatives and/or adversely affect the value or performance of derivatives and the Fund. Certain derivative transactions may have a leveraging effect on the Fund. For example, a small investment in a derivative instrument may have a significant impact on the Fund’s exposure to interest rates, currency exchange rates or other investments. As a result, a relatively small price movement in an asset, instrument or component of the index underlying a derivative instrument may cause an immediate and substantial loss or gain, which translates into heightened volatility in the Fund’s net asset value (“NAV”). The Fund may engage in such transactions regardless of whether the Fund owns the asset, instrument or components of the index underlying the derivative instrument. The Fund may invest a significant portion of its assets in these types of instruments. If it does, the Fund’s investment exposure could far exceed the value of its portfolio securities and its investment performance could be primarily dependent upon securities it does not own.

The Fund’s quarterly distributions may include, among other possible sources, interest income from its debt portfolio and payments and premiums (characterized as capital for financial accounting purposes and as ordinary income for tax purposes) generated by certain types of interest rate derivatives.

Strategies involving interest rate derivatives (including swaps that are paired) may attempt to capitalize on differences between short term and long-term interest rates as part of the Fund’s duration and yield curve active management strategies. For instance, in the event that long-term interest rates are higher than short-term interest rates, the Fund may elect to pay a floating short-term interest rate and to receive a long-term fixed interest rate for a stipulated period of time, thereby generating payments as a function of the difference between current short-term interest rates and long-term interest rates, so long as the floating short-term interest rate (which may rise) is lower than the fixed long-term interest rate.

The Fund may enter into opposite sides of multiple interest rate swaps or other derivatives with respect to the same underlying reference instrument (e.g., a 10-year U.S. treasury) that have different effective dates with respect to interest accrual time periods also for the principal purpose of generating distributable gains (characterized as ordinary income for tax purposes) that are not part of the Fund’s duration or yield curve management strategies. In such a “paired swap transaction”, the Fund would generally enter into one or more interest rate swap agreements whereby the Fund agrees to make regular payments starting at the time the Fund enters into the agreements equal to a floating interest rate in return for payments equal to a fixed interest rate (the “initial leg”). The Fund would also enter into one or more interest rate swap agreements on the same underlying instrument, but take the opposite position (i.e., in this example, the Fund would make regular payments equal to a fixed interest rate in return for receiving payments equal to a floating interest rate) with respect to a contract whereby the payment obligations do not commence until a date following the commencement of the initial leg (the “forward leg”).

The Fund may engage in investment strategies, including those investment strategies that employ the use of paired swaps transactions, the use of interest rate swaps to seek to capitalize on differences between short-term and long-term interest rates and other derivatives transactions, to, among other things, seek to generate current, distributable income, even if such strategies could potentially result in declines in the Fund’s NAV. The Fund’s income and gain-generating strategies, including certain derivatives strategies, may seek to generate current income and gains

taxable as ordinary income sufficient to support quarterly distributions even in situations when the Fund has experienced a decline in net assets due to, for example, adverse changes in the broad U.S. or non-U.S. equity markets or the Fund’s debt investments, or arising from its use of derivatives. For instance, a significant portion of the Fund’s quarterly distributions may be sourced from paired swap transactions utilized to produce current distributable ordinary income for tax purposes on the initial leg, with a substantial possibility that the Fund will later realize a corresponding capital loss and potential decline in its NAV with respect to the forward leg (to the extent there are not corresponding offsetting capital gains being generated from other sources). Because some or all of these transactions may generate capital losses without corresponding offsetting capital gains, portions of the Fund’s distributions recognized as ordinary income for tax purposes (such as from paired swap transactions) may be economically similar to a taxable return of capital when considered together with such capital losses.

The notional exposure of the Fund’s interest rate derivatives may represent a multiple of the Fund’s total assets. There can be no assurance that the Fund’s strategies involving interest rate derivatives will work as intended and such strategies are subject to the risks related to the use of derivatives generally, as discussed above (see also Notes 6 and 7 in the Notes to Financial Statements for further discussion on the use of derivative instruments and certain of the risks associated therewith). The Fund’s use of leverage creates the opportunity for increased net income, but also creates special risks for shareholders, including the likelihood of greater volatility of NAV and market price, and of the investment return to shareholders, rather than a comparable portfolio without leverage. To the extent used, there is no assurance that the Fund’s leveraging strategies will be successful. Leverage is a speculative technique that may expose the Fund to greater risk and increased costs. Interest expense payable by the Fund with respect to derivatives and other forms of leverage will generally be based on shorter-term interest rates that would be periodically reset. If shorter-term interest rates rise relative to the rate of return on the Fund’s portfolio, the interest and other costs to the Fund of leverage could exceed the rate of return on the debt obligations and other investments held by the Fund, thereby reducing return to shareholders. In addition, fees and expenses of any form of leverage used by the Fund will be borne entirely by shareholders and will reduce the investment return of the Fund’s shares.

The Fund currently expects, under normal circumstances, to obtain significant exposure to MLPs through the use of total return swaps (“MLP swaps”), and to hold cash and cash equivalents and/or high quality debt instruments in an amount equal to the full notional value of such MLP swaps. To the extent the Fund seeks additional leverage, rather than obtaining additional leverage through other means, such as the MLP swaps, the Fund expects to utilize reverse repurchase agreements, the net proceeds of which will be invested in accordance with the Fund’s investment objectives and policies, including with respect to the Fund’s exposure to MLPs. The Fund expects that the additional assets resulting from the use of reverse repurchase agreements will provide the Fund with greater flexibility to invest directly in MLP securities than if the Fund were to obtain leverage through the MLP swaps. Because the fees received by PIMCO are based on the average daily total managed assets of the Fund (including assets attributable to, among other forms of leverage, any reverse repurchase agreements, but not attributable to total return swaps or other derivatives), PIMCO has a financial incentive for the Fund to use certain forms of leverage, such as reverse repurchase agreements, which may create a conflict of interest between PIMCO, on the one hand, and common shareholders, on the other hand. Fees and expenses borne by the Fund with respect to the use of reverse repurchase agreements (including management fees) may be greater than expenses

Important Information About the Fund (Cont.)

associated with the use of MLP swaps, and may result in a reduction of the NAV of the common shares, and may negatively impact the Fund’s performance and/or distribution rate.

There can be no assurance that the Fund’s use of leverage will result in a higher yield on its common shares, and it may result in losses. Leverage creates several major types of risks for the Fund’s common shareholders, including (1) the likelihood of greater volatility of the NAV and market price of the Fund’s common shares, and of the investment return to the Fund’s common shareholders, than a comparable portfolio without leverage; (2) the possibility either that the Fund’s common share dividends will fall if the interest and other costs of leverage rise, or that dividends paid on the Fund’s common shares will fluctuate because such costs vary over time; and (3) the effects of leverage in a declining market or a rising interest rate environment, as leverage is likely to cause a greater decline in the NAV of the Fund’s common shares than if the Fund were not leveraged and may result in a greater decline in market value of the Fund’s common shares.

The Fund may hold common stocks and other equity securities from time to time, including without limit those it has received through the conversion of a convertible security held by the Fund or in connection with the restructuring of a debt security. The market price of common stocks and other equity securities may go up or down, sometimes rapidly or unpredictably. Equity securities may decline in value due to factors affecting equity securities markets generally, particular industries represented in those markets, or the issuer itself. The values of equity securities may decline due to general market conditions that are not specifically related to a particular company, such as real or perceived adverse economic conditions, changes in the general outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally. They may also decline due to factors that affect a particular industry or industries, such as labor shortages or increased production costs and competitive conditions within an industry. Equity securities generally have greater price volatility than fixed-income securities. These risks are generally magnified in the case of equity investments in distressed companies.

Unless the limited term provision of the Fund’s Declaration of Trust is amended by shareholders in accordance with the Declaration of Trust, or unless the Fund completes an Eligible Tender Offer and converts to perpetual existence, the Fund will terminate on or about the Dissolution Date (each as defined in Note 1, Organization, in the Notes to Financial Statements). The Fund is not a so called “target date” or “life cycle” fund whose asset allocation becomes more conservative over time as its target date, often associated with retirement, approaches. In addition, the Fund is not a “target term” fund whose investment objective is to return its original NAV on the Dissolution Date or in an Eligible Tender Offer. Because the assets of the Fund will be liquidated in connection with the dissolution, the Fund will incur transaction costs in connection with dispositions of portfolio securities. The Fund does not limit its investments to securities having a maturity date prior to the Dissolution Date and may be required to sell portfolio securities when it otherwise would not, including at times when market conditions are not favorable, which may cause the Fund to lose money. In particular, the Fund’s portfolio may still have large exposures to illiquid securities as the Dissolution Date approaches, and losses due to portfolio liquidation may be significant. Beginning one year before the Dissolution Date (the “Wind-Down Period”) the Fund may begin liquidating all or a portion of the Fund’s portfolio, and the Fund may deviate from its investment strategy and may not achieve its investment objectives. As a result, during the Wind-Down Period, the Fund’s distributions may decrease, and such distributions may include a return of capital. It is expected that common shareholders will receive cash in any liquidating distribution from the Fund, regardless of

their participation in the Fund’s automatic dividend reinvestment plan. However, if on the Dissolution Date the Fund owns securities for which no market exists or securities that are trading at depressed prices, such securities may be placed in a liquidating trust. The Fund cannot predict the amount, if any, of securities that will be required to be placed in a liquidating trust. The Fund’s investment objectives and policies are not designed to seek to return investors’ original investment upon termination of the Fund, and investors may receive more or less than their original investment upon termination of the Fund. As the assets of the Fund will be liquidated in connection with its termination, the Fund may be required to sell portfolio securities when it otherwise would not, including at times when market conditions are not favorable, which may cause the Fund to lose money. If the Fund conducts an Eligible Tender Offer, the Fund anticipates that funds to pay the aggregate price of shares accepted for purchase pursuant to the tender offer will be first derived from any cash on hand and then from the proceeds from the sale of portfolio investments held by the Fund. In addition, the Fund may be required to dispose of portfolio investments in connection with any reduction in the Fund’s outstanding leverage necessary in order to maintain the Fund’s desired leverage ratios following a tender offer. The risks related to the disposition of securities in connection with the Fund’s dissolution also would be present in connection with the disposition of securities in connection with an Eligible Tender Offer. The tax effect of any such dispositions of portfolio investments will depend on the difference between the price at which the investments are sold and the tax basis of the Fund in the investments. If the Fund’s tax basis for the investments sold is less than the sale proceeds, the Fund will recognize capital gains, which the Fund will be required to distribute to common shareholders. In addition, the Fund’s purchase of tendered Common Shares pursuant to a tender offer will have tax consequences for tendering common shareholders and may have tax consequences for non-tendering common shareholders. See Note 15, Federal Income Tax Matters, in the Notes to Financial Statements for further discussion on tax matters. A tender offer will have the effect of increasing the proportionate interest in the Fund of non-tendering shareholders. All shareholders remaining after a tender offer will be subject to proportionately higher expenses due to the reduction in the Fund’s total assets resulting from payment for the tendered shares. Such reduction in the Fund’s total assets may also result in less investment flexibility, reduced diversification and greater volatility for the Fund, and may have an adverse effect on the Fund’s investment performance. The Fund is not required to conduct an Eligible Tender Offer. If the Fund conducts an Eligible Tender Offer, there can be no assurance that the number of tendered shares would not result in the Fund having aggregate net assets below $200 million (the “the Dissolution Threshold”), in which case the Eligible Tender Offer will be canceled, no shares will be repurchased pursuant to the Eligible Tender Offer and the Fund will dissolve on the Dissolution Date (subject to possible extensions). Following the completion of an Eligible Tender Offer in which the number of tendered shares would result in the Fund having aggregate net assets greater than or equal to the Dissolution Threshold, the Board may eliminate the Dissolution Date without shareholder approval. Thereafter, the Fund will have a perpetual existence. Pacific Investment Management Company LLC (“PIMCO” or the “Manager”) may have a conflict of interest in recommending to the Board that the Dissolution Date be eliminated and the Fund have a perpetual existence. The Fund is not required to conduct additional tender offers following an Eligible Tender Offer and conversion to perpetual existence. Therefore, remaining shareholders may not have another opportunity to participate in a tender offer. Shares of closed-end management investment companies frequently trade at a discount from their NAV, and as a result remaining shareholders may only be able to sell their shares at a discount to NAV.

Important Information About the Fund (Cont.)

The Fund’s exposure to commodities may subject the Fund to greater volatility than investments in traditional securities, such as stocks and bonds. The commodities markets have experienced periods of extreme volatility. General market uncertainty and consequent repricing risk have led to market imbalances of sellers and buyers, which in turn have resulted in significant reductions in values of a variety of commodities and natural resources. Similar future market conditions may result in rapid and substantial valuation increases or decreases in the Fund’s holdings.

The commodities markets may fluctuate widely based on a variety of factors. Movements in commodity and natural resources investment prices are outside of the Fund’s control and may not be anticipated by the Manager. Price movements may be influenced by, among other things: governmental, agricultural, trade, fiscal, monetary and exchange control programs and policies; changing market and economic conditions; market liquidity; weather and climate conditions; changing supply and demand relationships and levels of domestic production and imported commodities; the availability of local, intrastate and interstate transportation systems; energy conservation; changes in international balances of payments and trade; domestic and foreign rates of inflation; currency devaluations and revaluations; domestic and foreign political and economic events; domestic and foreign interest rates and/or investor expectations concerning interest rates; foreign currency/exchange rates; domestic and foreign governmental regulation and taxation; war, acts of terrorism and other political upheaval and conflicts; governmental expropriation; investment and trading activities of mutual funds, hedge funds and commodities funds; changes in philosophies and emotions of market participants. The frequency and magnitude of such changes cannot be predicted.

Prices of various commodities and natural resources may also be affected by factors such as drought, floods, weather, livestock disease, changes in storage costs, embargoes, tariffs and other regulatory developments. Many of these factors are very unpredictable. The prices of commodities and natural resources can also fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Certain commodities or natural resources may be produced in a limited number of countries and may be controlled by a small number of producers or groups of producers. As a result, political, economic and supply related events in such countries could have a disproportionate impact on the prices of such commodities and natural resources.

Fluctuations in energy commodity prices can result from changes in general economic conditions or political circumstances (especially of key energy producing and consuming countries); market conditions; weather patterns; domestic production levels; volume of imports; energy conservation; domestic and foreign governmental regulation; international politics; policies of the OPEC; taxation; tariffs; and the availability and costs of local, intrastate and interstate transportation methods. The energy sector as a whole may also be impacted by the perception that the performance of energy sector companies is directly linked to commodity prices. High commodity prices may drive further energy conservation efforts, and a slowing economy may adversely impact energy consumption, which may adversely affect the performance of MLPs and other companies operating in the energy sector. Recent economic and market events have fueled concerns regarding potential liquidations of commodity futures and options positions.

The commodity markets are subject to temporary distortions and other disruptions due to, among other factors, lack of liquidity, the participation of speculators, and government regulation and other actions.

U.S. futures exchanges and some foreign exchanges limit the amount of fluctuation in futures contract prices which may occur in a single business day (generally referred to as “daily price fluctuation limits”). The maximum or minimum price of a contract as a result of these limits is referred to as a “limit price.” If the limit price has been reached in a particular contract, no trades may be made beyond the limit price. Limit prices have the effect of precluding trading in a particular contract or forcing the liquidation of contracts at disadvantageous times or prices.

The Fund invests in covenant-lite obligations, which contain fewer maintenance covenants than other obligations, or no maintenance covenants, and may not include terms that allow the lender to monitor the performance of the borrower and declare a default if certain criteria are breached. Covenant-lite loans may carry more risk than traditional loans as they allow individuals and corporations to engage in activities that would otherwise be difficult or impossible under a covenant-heavy loan agreement. In the event of default, covenant-lite loans may exhibit diminished recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. The Fund’s investments in and exposure to foreign securities involve special risks. For example, the value of these investments may decline in response to unfavorable political and legal developments, unreliable or untimely information or economic and financial instability. Foreign securities may experience more rapid and extreme changes in value than investments in securities of U.S. issuers. The securities markets of certain foreign countries are relatively small, with a limited number of companies representing a small number of industries. Issuers of foreign securities are usually not subject to the same degree of regulation as U.S. issuers. Reporting, accounting, auditing and custody standards of foreign countries differ, in some cases significantly, from U.S. standards. Also, nationalization, expropriation or other confiscation, currency blockage, political changes or diplomatic developments could adversely affect the Fund’s investments in foreign securities. In the event of nationalization, expropriation or other confiscation, the Fund could lose its entire investment in foreign securities. Investing in foreign (non-U.S.) securities may entail risk due to foreign (non- U.S.) economic and political developments; this risk may be increased when investing in emerging markets. For example, if the Fund invests in emerging market debt, it may face increased exposure to interest rate, liquidity, volatility, and redemption risk due to the specific economic, political, geographical, or legal background of the foreign (non-U.S.) issuer.

Classifications of the Fund’s portfolio holdings in this report are made according to financial reporting standards. The classification of a particular portfolio holding as shown in the Allocation Breakdown and Consolidated Schedule of Investments sections of this report may differ from the classification used for the Fund’s compliance calculations, including those used in the Fund’s prospectus, investment objectives, regulatory, and other investment limitations and policies, which may be based on different asset class, sector or geographical classifications. The Fund is separately monitored for compliance with respect to prospectus and regulatory requirements.

The geographical classification of foreign (non-U.S.) securities in this report, if any, are classified by the country of incorporation of a holding. In certain instances, a security’s country of incorporation may be different from its country of economic exposure.

Beginning in January 2020, global financial markets have experienced and may continue to experience significant volatility resulting from the spread of a novel coronavirus known as COVID-19. The outbreak of COVID-19 has resulted in travel and border restrictions, quarantines, supply chain disruptions, lower consumer demand and general market uncertainty. The effects of COVID-19 have

Important Information About the Fund (Cont.)

and may continue to adversely affect the global economy, the economies of certain nations and individual issuers, all of which may negatively impact the Fund’s performance. In addition, COVID-19 and governmental responses to COVID-19 may negatively impact the capabilities of the Fund’s service providers and disrupt the Fund’s operations.

The United States’ enforcement of restrictions on U.S. investments in certain issuers and tariffs on goods from other countries, each with a focus on China, has contributed to international trade tensions and may impact portfolio securities.

The United Kingdom’s withdrawal from the European Union may impact Fund returns. The withdrawal may cause substantial volatility in foreign exchange markets, lead to weakness in the exchange rate of the British pound, result in a sustained period of market uncertainty, and destabilize some or all of the other European Union member countries and/or the Eurozone.

The Fund may invest in certain instruments that rely in some fashion upon the London Interbank Offered Rate (“LIBOR”). LIBOR is an average interest rate, determined by the ICE Benchmark Administration, that banks charge one another for the use of short-term money. The United Kingdom’s Financial Conduct Authority, which regulates LIBOR, has announced plans to ultimately phase out the use of LIBOR. There remains uncertainty regarding future utilization of LIBOR and the nature of any replacement rate (e.g., the Secured Overnight Financing Rate, which is intended to replace U.S. dollar LIBOR and measures the cost of overnight borrowings through repurchase agreement transactions collateralized with U.S. Treasury securities). Any potential effects of the transition away from LIBOR on the Fund or on certain instruments in which the Fund invests can be difficult to ascertain, and they may vary depending on a variety of factors. The transition may also result in a reduction in the value of certain instruments held by the Fund or a reduction in the effectiveness of related Fund transactions such as hedges. Any such effects of the transition away from LIBOR, as well as other unforeseen effects, could result in losses to the Fund.

In June 2019, FNMA and FHLMC started issuing Uniform Mortgage Backed Securities in place of their current offerings of TBA-eligible securities (the “Single Security Initiative”). The Single Security Initiative seeks to support the overall liquidity of the TBA market and aligns the characteristics of FNMA and FHLMC certificates. The effects that the Single Security Initiative may have on the market for TBA and other mortgage-backed securities are uncertain.

Investments in loans through a purchase of a loan or a direct assignment of a financial institution’s interests with respect to a loan are generally subject to risks similar to those of investments in other types of debt obligations, including, among others, credit risk, interest rate risk, variable and floating rate securities risk, and, as applicable, risks associated with mortgage-related securities. In addition, in many cases loans are subject to the risks associated with below-investment grade securities. In the case of a loan participation or assignment, the Fund generally has no right to enforce compliance with the terms of the loan agreement with the borrower. As a result, the Fund may be subject to the credit risk of both the borrower and the lender that is selling the loan agreement. In the event of the insolvency of the lender selling a loan participation, the Fund may be treated as a general creditor of the lender and may not benefit from any set-off between the lender and the borrower. The Fund may be subject to heightened or additional risks and potential liabilities and costs by investing in mezzanine and other subordinated loans, including those arising under bankruptcy, fraudulent conveyance, equitable subordination, lender liability, environmental and other laws and regulations, and risks and costs associated with debt servicing and taking foreclosure actions associated with the loans.

Mortgage-related and other asset-backed instruments represent interests in “pools” of mortgages or other assets such as consumer loans or receivables held in trust and often involve risks that are different from or possibly more acute than risks associated with other types of debt instruments. Generally, rising interest rates tend to extend the duration of fixed rate mortgage-related assets, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, the Fund may exhibit additional volatility since individual mortgage holders are less likely to exercise prepayment options, thereby putting additional downward pressure on the value of these securities and potentially causing the Fund to lose money.

The Fund’s investments in other asset-backed instruments are subject to risks similar to those associated with mortgage-related assets, as well as additional risks associated with the nature of the assets and the servicing of those assets. Payment of principal and interest on asset-backed securities may be largely dependent upon the cash flows generated by the assets backing the securities, and asset-backed securities may not have the benefit of any security interest in the related assets. Additionally, investments in subordinate mortgage-backed and other asset-backed instruments will be subject to risks arising from delinquencies and foreclosures, thereby exposing the Fund’s investment portfolio to potential losses. Subordinate securities of mortgage-backed and other asset-backed instruments are also subject to greater credit risk than those mortgage-backed or other asset-backed securities that are more highly rated.

The Fund may also invest in the residual or equity tranches of mortgage-related and other asset-backed instruments, which may be referred to as subordinate mortgage-backed or asset-backed instruments and interest-only mortgage-backed or asset-backed instruments. The risk of investing in collateralized loan obligations (“CLOs”), include prepayment risk, credit risk, liquidity risk, market risk, structural risk, legal risk and interest rate risk. CLOs may carry additional risks, including, but not limited to (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the quality of the collateral may decline in value or default; (iii) the possibility that the investments in CLOs are subordinate to other classes or tranches thereof; and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results.

High-yield bonds (commonly referred to as “junk bonds”) typically have a lower credit rating than other bonds. Lower-rated bonds generally involve a greater risk to principal than higher-rated bonds.

Further, markets for lower-rated bonds are typically less liquid than for higher-rated bonds, and public information is usually less abundant in markets for lower-rated bonds. Thus, high yield investments increase the chance that the Fund will lose money. PIMCO does not rely solely on credit ratings, and develops its own analysis of issuer credit quality. The Fund may purchase unrated securities (which are not rated by a rating agency) if PIMCO determines that the security is of comparable quality to a rated security that the Fund may purchase. Unrated securities may be less liquid than comparable rated securities and involve the risk that PIMCO may not accurately evaluate the security’s comparative credit quality, which could result in the Fund’s portfolio having a higher level of credit and/or high yield risk than PIMCO has estimated or desires for the Fund, and could negatively impact the Fund’s performance and/or returns. The Fund may invest a substantial portion of its assets in unrated securities and therefore may be particularly subject to the associated risks. To the extent that the Fund invests in high yield and/or unrated securities, the Fund’s success in achieving its investment objectives may depend more heavily on the portfolio manager’s

Important Information About the Fund (Cont.)

creditworthiness analysis than if the Fund invested exclusively in higher-quality and rated securities. The Fund may hold defaulted securities that may involve special considerations including bankruptcy proceedings, other regulatory and legal restrictions affecting the Fund’s ability to trade, and the availability of prices from independent pricing services or dealer quotations. Defaulted obligations might be repaid only after lengthy workout or bankruptcy proceedings, during which the issuer might not make any interest or other payments.

Defaulted securities are often illiquid and may not be actively traded. Sales of securities in bankrupt companies at an acceptable price may be difficult and differences compared to the value of the securities used by the Fund could be material. The credit quality of a particular security or group of securities does not ensure the stability or safety of the overall portfolio.

Contingent convertible securities (“CoCos”) are a form of hybrid debt security issued primarily by non-U.S. issuers, which have loss absorption mechanisms built into their terms. The risks of investing in CoCos include, without limitation, the risk that interest payments will be cancelled by the issuer or a regulatory authority, the risk of ranking junior to other creditors in the event of a liquidation or other bankruptcy-related event as a result of holding subordinated debt, the risk of the Fund’s investment becoming further subordinated as a result of conversion from debt to equity, the risk that the principal amount due can be written down to a lesser amount, and the general risks applicable to fixed income investments, including interest rate risk, credit risk, market risk and liquidity risk, any of which could result in losses to the Fund. CoCos may experience a loss absorption mechanism trigger event, which would likely be the result of, or related to, the deterioration of the issuer’s financial condition (e.g., a decrease in the issuer’s capital ratio) and status as a going concern. In such a case, with respect to CoCos that provide for conversion into common stock upon the occurrence of the trigger event, the market price of the issuer’s common stock received by the Fund will have likely declined, perhaps substantially, and may continue to decline, which may adversely affect the Fund’s NAV.

Variable and floating rate securities may decline in value if their interest rates do not rise as much, or as quickly, as interest rates in general. Conversely, floating rate securities will not generally increase in value if interest rates decline. Inverse floating rate securities may decrease in value if interest rates increase. Inverse floating rate securities may also exhibit greater price volatility than a fixed rate obligation with similar credit quality. When the Fund holds variable or floating rate securities, a decrease (or, in the case of inverse floating rate securities, an increase) in market interest rates will adversely affect the income received from such securities and the NAV of the Fund’s shares.

The Fund may seek to gain exposure to commodities through investments in swap agreements, futures and options, and through investments in PIMCO Cayman Commodity Fund IX, Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the “Subsidiary”). The Fund may invest up to 25% of its total assets in the Subsidiary. The Subsidiary is advised by PIMCO and has the same investment objectives as the Fund. The Subsidiary (unlike the Fund) may invest without limit in commodity-linked swap agreements and other commodity-linked derivative instruments. References herein to the Fund include references to the Subsidiary in respect of the Fund’s investment exposure. The allocation of the Fund’s assets to the Subsidiary will vary over time and the Fund’s portfolio may not always include all of the different types of investments described herein. By investing through its Subsidiary, the Fund is exposed to the risks associated with the Subsidiary’s investments. The Subsidiary is not registered as an investment company under the

Investment Company Act of 1940, as amended, and the rules and regulations thereunder (the “Act”), and is not subject to all of the investor protections of the Act, although the Subsidiary is managed pursuant to the compliance policies and procedures of the Fund applicable to it. Changes in the laws of the United States and/or the jurisdiction in which the Subsidiary is organized could result in the inability of the Fund and/or the Subsidiary to operate as described in this report and could adversely affect the Fund. There is no guarantee that the investment objectives of the Subsidiary will be achieved.

As the use of technology has become more prevalent in the course of business, the Fund has become potentially more susceptible to operational and information security risks resulting from breaches in cyber security. A breach in cyber security refers to both intentional and unintentional cyber events that may, among other things, cause the Fund to lose proprietary information, suffer data corruption and/or destruction or lose operational capacity, result in the unauthorized release or other misuse of confidential information, or otherwise disrupt normal business operations.

Cyber security failures or breaches may result in financial losses to the Fund and its shareholders. These failures or breaches may also result in disruptions to business operations, potentially resulting in financial losses; interference with the Fund’s ability to calculate its NAV, process shareholder transactions or otherwise transact business with shareholders; impediments to trading; violations of applicable privacy and other laws; regulatory fines; penalties; reputational damage; reimbursement or other compensation costs; additional compliance and cyber security risk management costs and other adverse consequences. In addition, substantial costs may be incurred in an attempt to prevent any cyber incidents in the future.

There is also a risk that cyber security breaches may not be detected. The Fund and its shareholders could be negatively impacted as a result.

The common shares of the Fund trade on the New York Stock Exchange. As with any stock, the price of the Fund’s common shares will fluctuate with market conditions and other factors. If you sell your common shares of the Fund, the price received may be more or less than your original investment. Shares of closed-end management investment companies, such as the Fund, frequently trade at a discount from their NAV and may trade at a price that is less than the initial offering price and/or the NAV of such shares. Further, if the Fund’s shares trade at a price that is more than the initial offering price and/or the NAV of such shares, including at a substantial premium and/or for an extended period of time, there is no assurance that any such premium will be sustained for any period of time and will not decrease, or that the shares will not trade at a discount to NAV thereafter.

The Fund may be subject to various risks, including, but not limited to, the following: market discount risk, limited term risk, subsidiary risk, non-diversification risk, equity securities and related market risk, debt securities risks, including issuer risk, interest rate risk, prepayment risk, credit risk, reinvestment risk and duration and maturity risk, risks of equity securities of MLPs, including general equity securities risk, limited partner risk, risks of MLP subordinated units, affiliated party risk and risks related to the lack of diversification of MLP customers and suppliers, risks of debt securities of MLPs, risks of MLP general partner and managing member interests, risks of exchange-traded notes, energy sector risks, including commodity price risk, supply and demand risk, depletion risk, environmental and regulatory risk, weather risk, catastrophic event risk, acquisition risk and cyclical industry risk, industry specific risks, including risks related to pipelines, gathering and processing

Important Information About the Fund (Cont.)

companies, midstream companies, upstream companies, downstream companies, oil companies, oilfield services, propane, coal, power infrastructure and marine transportation, total return swap risk, commodities risk, short sales risk, corporate debt securities risk, issuer risk, interest rate risk, prepayment risk, credit risk, mortgage-related and other asset-backed instruments risk, privately-issued mortgage-related securities risk, mortgage market/subprime risk, high yield securities risk, distressed and defaulted securities risk, senior debt risk, loans and other indebtedness/loan participations and assignments risk, covenant-lite obligations risk, reinvestment risk, call risk, municipal bond risk, including interest rate risk, credit risk and liquidity risk, inflation-indexed security risk, zero-coupon bond, step-ups and payment-in-kind securities risk, preferred securities risk, other investment companies risk, foreign (non-U.S.) investment risk, emerging markets risk, currency risk, U.S. government securities risk, foreign (non-U.S.) government securities risk, convertible securities risk, synthetic convertible securities risk, contingent convertible securities risk, valuation risk, leverage risk, segregation and coverage risk, derivatives risk, counterparty risk, structured investments risk, confidential information access risk, private placements risk, inflation/deflation risk, liquidity risk, restricted securities risk, market risk, management risk, tax risk, risk of regulatory changes, regulatory risk — LIBOR, regulatory risk related to commodity pool operator regulation, potential conflicts of interest risk related to the allocation of investment opportunities, repurchase agreements risk, securities lending risk, portfolio turnover risk, operational risk, market disruptions risk and cybersecurity risk. A description of certain of these risks is available in the Notes to Financial Statements of this report.

On the Fund Summary page in this Shareholder Report, the Cumulative Annual Total Return table measures performance assuming that all dividend and capital gain distributions were reinvested. Total return is calculated by determining the percentage change in NAV or market price (as applicable) in the specific period. Returns do not reflect the deduction of taxes that a shareholder would pay on (i) Fund distributions or (ii) the sale of Fund shares. Total return for a period of more than one year represents the average annual total return. Performance at market price will differ from results at NAV. Although market price returns tend to reflect investment results over time, during shorter periods returns at market price can also be influenced by factors such as changing views about the Fund, market conditions, supply and demand for the Fund’s shares, or changes in the Fund’s dividends. Performance shown is net of fees and expenses. Historical NAV performance for the Fund may have been positively impacted by fee waivers or expense limitations in place during some or all of the periods shown, if applicable. Future performance (including total return or yield) and distributions may be negatively impacted by the expiration or reduction of any such fee waivers or expense limitations.

The Fund’s quarterly distributions may include, among other possible sources, interest income from its debt portfolio and payments and premiums (characterized as capital for financial accounting purposes and as ordinary income for tax purposes) generated by certain types of interest rate derivatives. The dividend rate that the Fund pays on its common shares may vary as portfolio and market conditions change, and will depend on a number of factors, including without limit the amount of the Fund’s undistributed net investment income and net short- and long-term capital gains, as well as the costs of any leverage obtained by the Fund. As portfolio and market conditions change, the rate of distributions on the common shares and the Fund’s dividend policy could change. There can be no assurance that a change in market conditions or other factors will not result in a change in the Fund distribution rate or that the rate will be sustainable in the future.

The following table discloses the commencement of operations and diversification status of the Fund:

An investment in the Fund is not a deposit of a bank and is not guaranteed or insured by the Federal Deposit Insurance Corporation or any other government agency. It is possible to lose money on investments in the Fund.

The Trustees are responsible generally for overseeing the management of the Fund. The Trustees authorize the Fund to enter into service agreements with the Manager and other service providers in order to provide, and in some cases authorize service providers to procure through other parties, necessary or desirable services on behalf of the Fund. Shareholders are not parties to or third-party beneficiaries of such service agreements. Neither the Fund’s original or any subsequent prospectus or Statement of Additional Information (“SAI”), any press release or shareholder report, any contracts filed as exhibits to the Fund’s registration statement, nor any other communications, disclosure documents or regulatory filings from or on behalf of the Fund creates a contract between or among any shareholders of the Fund, on the one hand, and the Fund, a service provider to the Fund, and/or the Trustees or officers of the Fund, on the other hand.

The Trustees (or the Fund and its officers, service providers or other delegates acting under authority of the Trustees) may amend its most recent or use a new prospectus or SAI with respect to the Fund, adopt and disclose new or amended policies and other changes in press releases and shareholder reports and/or amend, file and/or issue any other communications, disclosure documents or regulatory filings, and may amend or enter into any contracts to which the Fund is a party, and interpret the investment objective(s), policies, restrictions and contractual provisions applicable to the Fund, without shareholder input or approval, except in circumstances in which shareholder approval is specifically required by law (such as changes to fundamental investment policies) or where a shareholder approval requirement was specifically disclosed in the Fund’s prospectus, SAI or shareholder report and is otherwise still in effect.

PIMCO has adopted written proxy voting policies and procedures (“Proxy Policy”) as required by Rule 206(4)-6 under the Investment Advisers Act of 1940. The Proxy Policy has been adopted by the Fund as the policies and procedures that PIMCO will use when voting proxies on behalf of the Fund.

A description of the policies and procedures that PIMCO uses to vote proxies relating to portfolio securities of the Fund, and information about how the Fund voted proxies relating to portfolio securities held during the most recent twelve-month period ended June 30, will be available without charge, upon request, by calling the Fund at (844) 33-PIMCO, on the Fund’s website at www.pimco.com, and on the Securities and Exchange Commission’s (“SEC”) website at www.sec.gov.

The Fund files portfolio holdings information with the SEC on Form N-PORT within 60 days of the end of each fiscal quarter. The Fund’s complete schedule of securities holdings as of the end of each fiscal quarter will be made available to the public on the SEC’s website at www.sec.gov and on PIMCO’s website at www.pimco.com, and will be made available, upon request, by calling PIMCO at (844) 33-PIMCO.

Important Information About the Fund (Cont.)

The SEC adopted a rule that allows shareholder reports to be delivered to investors by providing access to such reports online free of charge and by mailing a notice that the report is electronically available. Pursuant to the rule, investors may elect to receive all future reports in paper free of charge by contacting their financial intermediary or, if invested directly with the Fund, investors can inform the Fund by calling 844.337.4626. Any election to receive reports in paper will apply to all funds held with the fund complex if invested directly with the Fund or to all funds held in the investor’s account if invested through a financial intermediary, such as a broker-dealer or bank.

In April, 2020, the SEC adopted amended rules modifying the registration, communications, and offering processes for registered closed-end funds and interval funds. Among other things, the amendments will: (1) permit qualifying closed-end funds to use a short-form registration statement to offer securities in eligible transactions and certain funds to qualify as Well Known Seasoned Issuers; (2) permit interval funds to pay registration fees based on net issuance of shares in a manner similar to mutual funds; (3) require closed-end funds and interval funds to include additional disclosures in their annual reports; and (4) require certain information to be filed in interactive data format. The new rules have phased compliance and effective dates, with some requirements already requiring compliance starting from August 1, 2020 and others requiring compliance as late as February 1, 2023.

In October 2020, the SEC adopted a rule related to the use of derivatives, short sales, reverse repurchase agreements and certain other transactions by registered investment companies that rescinds and withdraws the guidance of the SEC and its staff regarding asset segregation and cover transactions. Subject to certain exceptions, and after an eighteen-month transition period, the rule requires funds to trade derivatives and other transactions that create future payment or delivery obligations (except reverse repurchase agreements and similar financing transactions) subject to a value-at-risk leverage limit, certain derivatives risk management program and reporting requirements. These requirements may limit the ability of the Fund to use derivatives and reverse repurchase agreements and similar financing transactions as part of their investment strategies and may increase the cost of the Fund’s investments and cost of doing business, which could adversely affect investors.

In October 2020, the SEC adopted a rule regarding the ability of a fund to invest in other funds. The rule allows a fund to acquire shares of another fund in excess of certain limitations currently imposed by the Act without obtaining individual exemptive relief from the SEC, subject to certain conditions. The rule also included the rescission of certain exemptive relief from the SEC and guidance from the SEC staff for funds to invest in other funds. The impact that these changes may have on the Fund is uncertain.

In December 2020, the SEC adopted a rule addressing fair valuation of fund investments. The new rule sets forth requirements for good faith determinations of fair value as well as for the performance of fair value determinations, including related oversight and reporting obligations. The new rule also defines “readily available market quotations” for purposes of the definition of “value” under the Act, and the SEC noted that this definition will apply in all contexts under the Act. The SEC adopted an eighteen-month transition period beginning from the effective date for both the new rule and the associated new recordkeeping requirements. The impact of the new rule on the Fund is uncertain at this time.

(THIS PAGE INTENTIONALLY LEFT BLANK)

All Fund returns are net of fees and expenses and include applicable fee waivers and/or expense limitations. Absent any applicable fee waivers and/or expense limitations, performance would have been lower and there can be no assurance that any such waivers or limitations will continue in the future.

Investment Objective and Strategy Overview

The Fund’s primary investment objective is to seek total return, with a secondary objective to seek to provide high current income.

Fund Insights at NAV

The following affected performance (on a gross basis) during the reporting period:

Financial Highlights PIMCO Energy and Tactical Credit Opportunities Fund (Consolidated)

Consolidated Statement of Assets and Liabilities PIMCO Energy and Tactical Credit Opportunities Fund

(Unaudited)

December 31, 2020

Consolidated Statement of Operations PIMCO Energy and Tactical Credit Opportunities Fund

Consolidated Statements of Changes in Net Assets PIMCO Energy and Tactical Credit Opportunities Fund

Consolidated Schedule of Investments PIMCO Energy and Tactical Credit Opportunities Fund

(Unaudited)

December 31, 2020

(Amounts in thousands*, except number of shares, contracts, units and ounces, if any)

Consolidated Schedule of Investments PIMCO Energy and Tactical Credit Opportunities Fund (Cont.)

(Unaudited)

December 31, 2020

NOTES TO CONSOLIDATED SCHEDULE OF INVESTMENTS:    

(i) RESTRICTED SECURITIES:

BORROWINGS AND OTHER FINANCING TRANSACTIONS

(j)  REPURCHASE AGREEMENTS:

Consolidated Schedule of Investments PIMCO Energy and Tactical Credit Opportunities Fund (Cont.)

REVERSE REPURCHASE AGREEMENTS:

BORROWINGS AND OTHER FINANCING TRANSACTIONS SUMMARY

The following is a summary by counterparty of the market value of Borrowings and Other Financing Transactions and collateral pledged/(received) as of December 31, 2020:

CERTAIN TRANSFERS ACCOUNTED FOR AS SECURED BORROWINGS

Remaining Contractual Maturity of the Agreements