Zymeworks Biopharmaceuticals Inc.

Form 5500

ZYMEWORKS BIOPHARMACEUTICALS, INC.

1215 4th Avenue, Suite 2100, Seattle, Wa 98161 (206) 237-1030 EIN:47-2569713 Plan Admin:Ari Katsiavos

Year	Plan Name	Participants BOY/EOY	Assets BOY/EOY
2023	Plan NameZYMEWORKS BIOPHARMACEUTICALS, INC Plan #501 Participants BOY/EOY125 / 0 Assets BOY/EOY$0 / $0	2023	ZYMEWORKS BIOPHARMACEUTICALS, INC - Plan #501	125 / 0	$0 / $0
2022	Plan NameZYMEWORKS BIOPHARMACEUTICALS 401(K) PLAN Plan #001 Participants BOY/EOY247 / 225 Assets BOY/EOY$11,993,540 / $11,144,488	2022	ZYMEWORKS BIOPHARMACEUTICALS 401(K) PLAN - Plan #001	247 / 225	$11,993,540 / $11,144,488
2022	Plan NameZYMEWORKS BIOPHARMACEUTICALS, INC Plan #501 Participants BOY/EOY206 / 0 Assets BOY/EOY$0 / $0	2022	ZYMEWORKS BIOPHARMACEUTICALS, INC - Plan #501	206 / 0	$0 / $0
2021	Plan NameZYMEWORKS BIOPHARMACEUTICALS 401(K) PLAN Plan #001 Participants BOY/EOY167 / 247 Assets BOY/EOY$6,792,802 / $11,993,540	2021	ZYMEWORKS BIOPHARMACEUTICALS 401(K) PLAN - Plan #001	167 / 247	$6,792,802 / $11,993,540
2021	Plan NameZYMEWORKS BIOPHARMACEUTICALS, INC Plan #501 Participants BOY/EOY142 / 0 Assets BOY/EOY$0 / $0	2021	ZYMEWORKS BIOPHARMACEUTICALS, INC - Plan #501	142 / 0	$0 / $0
2020	Plan NameZYMEWORKS BIOPHARMACEUTICALS 401(K) PLAN Plan #001 Participants BOY/EOY87 / 167 Assets BOY/EOY$2,729,924 / $6,792,801	2020	ZYMEWORKS BIOPHARMACEUTICALS 401(K) PLAN - Plan #001	87 / 167	$2,729,924 / $6,792,801
2020	Plan NameZYMEWORKS BIOPHARMACEUTICALS, INC. Plan #501 Participants BOY/EOY0 / 142 Assets BOY/EOY$0 / $0	2020	ZYMEWORKS BIOPHARMACEUTICALS, INC. - Plan #501	0 / 142	$0 / $0
2019	Plan NameZYMEWORKS BIOPHARMACEUTICALS 401(K) PLAN Plan #001 Participants BOY/EOY39 / 87 Assets BOY/EOY$1,338,081 / $2,729,924	2019	ZYMEWORKS BIOPHARMACEUTICALS 401(K) PLAN - Plan #001	39 / 87	$1,338,081 / $2,729,924