Zymeworks Inc. at its AGM held on December 7, 2023, elected Nancy Davidson as directors. Ms. Lota Zoth decided not to stand for re-election to the Board of Directors of the Company at the Annual Meeting. Following the departure of Ms. Zoth and the election of Dr. Nancy Davidson, and effective immediately following the conclusion of the Annual Meeting, Dr. Susan Mahony was appointed as the Board?s lead independent director, and the composition of the committees of the Board were revised as follows: Audit Committee: Carlos Campoy (Chair), Troy Cox, Derek Miller.

Compensation Committee: Hollings Renton (Chair), Susan Mahony, Nancy Davidson. Nominating and Corporate Governance Committee: Kenneth Hillan (Chair), Carlos Campoy, Derek Miller. Research and Development Committee: Kelvin Neu (Chair), Kenneth Hillan, Nancy Davidson.