X0306 4 2017-04-23 0 0001302573 OncoMed Pharmaceuticals Inc OMED 0001553352 Lewicki John A. C/O ONCOMED PHARMACEUTICALS, INC. 800 CHESAPEAKE DRIVE REDWOOD CITY CA 94063 0 1 0 0 EVP, Research & Development Common Stock 2017-04-23 4 A 0 22500 0.00 A 45437 D Common Stock 88951 I See Footnote Stock Option (Right to Buy) 3.73 2017-04-23 4 A 0 67500 0.00 A 2027-04-22 Common Stock 67500 67500 D Restricted stock units ("RSUs"). The reporting person is entitled to receive one (1) share of common stock of the issuer for each one (1) RSU upon the vesting thereof. Includes 35,000 RSUs. The shares are held by John Allan Lewicki and Jenniffer Joan Lewicki, Trustees of the Lewicki Family Trust dated December 6, 2000. The option vests with respect to 1/48 of the shares subject thereto on each monthly anniversary of the date of grant, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date. /s/ Alicia J. Hager, Attorney-in-Fact for John A. Lewicki 2017-04-25