Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

Equity compensation plan information

We maintain plans under which options to purchase our common stock and awards of restricted stock may be made to officers, directors, and key employees. Stock options are granted with an exercise price equal to the fair market value of the underlying common stock on the date of grant. Our stock plans, as approved by the Board of Directors and stockholders, define fair market value as the average of the highest and lowest stock prices reported on the composite tape by the New York Stock Exchange on a given date. Exercise provisions vary, but most options vest in whole or in part 1 to 3 years after grant and expire up to 7 years after grant.

Information concerning stock option awards and the number of securities remaining available for future issuance under our equity compensation plans in effect as of December 31, 2020 follows:

(1)The above table does not include awards of shares of restricted stock or restricted stock units. For information concerning these awards, see Note 14.

(2)The Humana Inc. 2011 Stock Incentive Plan was approved by stockholders at the Annual Meeting held on April 21, 2011. On July 5, 2011, 18.5 million shares were registered with the Securities and Exchange Commission on Form S-8.

(3)The Humana Inc. Amended and Restated Stock Incentive Plan was approved by stockholders at the Annual Meeting held on April 18, 2019. On May 1, 2019, 16 million shares were registered with the Securities and Exchange Commission on Form S-8.

(4)Of the number listed above, 5,996,605 (1,704,458 from the 2011 Plan and 4,292,148 from the Amended and Restated Plan) can be issued as restricted stock at December 31, 2020 (giving effect to the provision that one restricted share is equivalent to 2.29 stock options in the 2011 Plan and 3.35 stock options in the Amended and Restated Plan).

The information under the captions “Stock Ownership Information - Security Ownership of Certain Beneficial Owners of Company Common Stock” and “Stock Ownership Information - Security Ownership of Directors and Executive Officers” in our Definitive Proxy Statement for the Annual Meeting of Stockholders scheduled to be held on April 22, 2021, is herein incorporated by reference.