X0306 4 2014-03-18 0 0000791908 XOMA Corp XOMA 0001600865 Neal James R C/O XOMA CORPORATION 2910 SEVENTH STREET BERKELEY CA 94710 0 1 0 0 VP Business Development Common Shares 2014-03-18 4 S 0 2671 6.316 D 151441 D Common Shares 1470 I by 401(k) These restricted stock units were granted on February 28, 2013 and are scheduled to vest in substantially equal installments on each of March 18, 2014, March 18, 2015, and March 18, 2016. Shares sold on the open market to satisfy the minimum amount of taxes required to be withheld in connection with the vesting of the shares in a non-discretionary transaction pursuant to the reporting person's agreement under the Company's equity incentive plan. By: Russell J. Wood For: James R. Neal 2014-03-20