X0306 4 2017-05-17 0 0001433270 ANTERO RESOURCES Corp AR 0001234637 RADY PAUL M 1615 WYNKOOP STREET DENVER CO 80202 1 1 0 0 See remarks Common stock, par value $0.01 per share 2017-05-17 4 P 0 500000 21.1117 A 11172368 D Common stock, par value $0.01 per share 5282518 I See footnote The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $20.8750 to $21.2200, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above. Includes 369,536 shares of common stock that remain subject to vesting. Includes 2,820,806 shares of common stock held by Salisbury Investment Holdings LLC ("Salisbury") and 2,461,712 shares of common stock held by Mockingbird Investment, LLC ("Mockingbird"). The Reporting Person owns a 95% limited liability company interest in Salisbury and his spouse owns the remaining 5%. The Reporting Person owns a 3.68% limited liability company interest in Mockingbird, and a trust under his control owns the remaining 96.32%. The Reporting Person disclaims beneficial ownership of all shares held by Salisbury and Mockingbird except to the extent of his pecuniary interest therein. Chairman of the Board and Chief Executive Officer /s/ Glen C. Warren, Jr., as attorney-in-fact for Paul M. Rady 2017-05-19