X0306 4 2016-02-29 0 0001061027 SUNESIS PHARMACEUTICALS INC SNSS 0001323113 Swisher Daniel N JR C/O SUNESIS PHARMACEUTICALS, INC. 395 OYSTER POINT BLVD., STE. 400 SOUTH SAN FRANCISCO CA 94080 1 1 0 0 President and CEO Common Stock 2016-02-29 4 A 0 137533 0 A 322194 D Common Stock 2016-02-29 4 F 0 55675 0.75 D 266519 D Commmon Stock 199736 I See footnote. Represents an incentive bonus paid to the reporting person pursuant to the Issuer's 2015 Bonus Plan. In accordance with the terms of the 2015 Bonus Plan, the reporting person received 50% of his bonus payment in a number of shares of the Issuer's common stock calculated as set forth in the 2015 Bonus Plan. Includes 5,151 ESPP shares acquired on 11/30/15. Represents shares withheld by the Issuer in accordance with Rule 16b-3 to satisfy tax withholding obligations in connection with the incentive bonus paid to the reporting person pursuant to the Issuer's 2015 Bonus Plan, as reported herein. The shares are held by the Swisher Revocable Trust for which reporting person is a Trustee. /s/Daniel N. Swisher, Jr. 2016-03-02