DESCRIPTION OF COMMON STOCK
The following is a summary of our common stock and certain provisions of our amended and restated certificate of incorporation and amended and restated bylaws. This summary does not purport to be complete and is qualified in its entirety by the provisions of our amended and restated certificate of incorporation and amended and restated bylaws, copies of which have been previously filed with the SEC, and applicable provisions of Delaware law.
General
Our authorized capital stock consists of 2,100,000,000 shares, with a par value of $0.001 per share, of which 2,000,000,000 shares are designated as common stock.
As of June 30, 2019, we had outstanding 179,117,810 shares of common stock, held of record by 1,193 stockholders. A substantially greater number of holders of our common stock are “street name” or beneficial holders, whose shares are held by banks, brokers and other financial institutions.
In addition, as of June 30, 2019, we had outstanding options to acquire 30,626,405 shares of common stock and 4,889,598 shares of common stock issuable upon the vesting of restricted stock units.
The holders of common stock are entitled to one vote per share on all matters submitted to a vote of our stockholders and do not have cumulative voting rights. Accordingly, holders of a majority of the shares of common stock entitled to vote in any election of directors may elect all of the directors standing for election. Subject to preferences that may be applicable to any preferred stock outstanding at the time, the holders of outstanding shares of common stock are entitled to receive ratably any dividends declared by our board of directors out of assets legally available. Upon our liquidation, dissolution or winding up, holders of our common stock are entitled to share ratably in all assets remaining after payment of liabilities and the liquidation preference of any then outstanding shares of preferred stock. Holders of common stock have no preemptive or conversion rights or other subscription rights. There are no redemption or sinking fund provisions applicable to the common stock.
Registration Rights
Certain holders of unregistered common stock purchased in private placements, or their permitted transferees (the “Registration Rights Holders”), are entitled to rights with respect to the registration of such shares under the Securities Act. These rights are provided under the terms of an investors’ rights agreement (the “investors’ rights agreement”) between us and the holders of these shares and include demand registration rights, short-form registration rights and piggyback registration rights. All fees, costs and expenses of underwritten registrations will be borne by us and all selling expenses, including underwriting discounts and selling commissions, will be borne by the holders of the shares being registered.
The registration rights terminate with respect to the registration rights of an individual holder after the date that is five years following such time when the holder can sell all of the holder’s shares in any three month period under Rule 144 or another similar exemption under the Securities Act, unless such holder holds at least 2% of our voting stock.
Demand Registration Rights
The Registration Rights Holders are currently entitled to demand registration rights. Under the terms of the investors’ rights agreement, we will be required, at our expense, upon the written request
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