13D Filings

Zymeworks Inc.

CIK

1937653

Latest Filing

Nov 19, 2025, 05:39 PM

13D Filings
Filer
Latest Filing
% Owned
Type
Filed

EcoR1 Capital, LLC

0000935836-25-000711

30.70%

Amendment

Nov 19, 2025, 05:39 PM

EcoR1 Capital, LLC

0000935836-25-000439

30.70%

+5.30%

NEW

Jun 27, 2025, 06:14 PM

EcoR1 Capital, LLC

0000935836-25-000268

25.40%

+1.20%

Amendment

Apr 8, 2025, 04:24 PM

EcoR1 Capital, LLC

0000935836-25-000230

24.20%

+1.40%

Amendment

Mar 17, 2025, 07:50 PM

EcoR1 Capital, LLC

0000935836-25-000186

22.80%

+0.40%

Amendment

Feb 18, 2025, 06:25 PM

EcoR1 Capital, LLC

0000935836-25-000060

22.40%

+1.10%

Amendment

Jan 13, 2025, 07:18 PM

EcoR1 Capital, LLC

0000935836-24-000776

21.30%

Amendment

Dec 23, 2024, 07:54 PM

Rows:

17 of 7

1