X0306 4 2019-06-07 0 0001285819 OMEROS CORP OMER 0001233253 HANISH ARNOLD C 201 ELLIOTT AVENUE WEST SEATTLE WA 98119 1 0 0 0 Stock Option (Right to Buy) 16.87 2019-06-07 4 A 0 7500 0.00 A 2029-06-06 Common Stock 7500 7500 D This option will fully vest and become exercisable on the day before the date of the 2020 annual meeting of the shareholders of Omeros Corporation, provided that the participant continues to serve as a director of the company through such date. Exhibit 24 - Power of Attorney /s/ Peter B. Cancelmo, attorney-in-fact on behalf of Arnold C. Hanish 2019-06-11