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ZYME US
Zymeworks Inc.
(ZYME US)
$28.22
-0.22
0.77%
Ext:
$28.83
+0.61
2.17%
(Market Closed · 00:00:02 UTC)
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SEC Filings by Owner
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Insider Ownership
EcoR1 Capital, LLC
(23)
Expand
4
Statement of changes in beneficial ownership
27 Jun 2025
4
Statement of changes in beneficial ownership
19 May 2025
4
Statement of changes in beneficial ownership
18 Apr 2025
4
Statement of changes in beneficial ownership
7 Apr 2025
4
Statement of changes in beneficial ownership
2 Apr 2025
4
Statement of changes in beneficial ownership
27 Mar 2025
4
Statement of changes in beneficial ownership
24 Mar 2025
4
Statement of changes in beneficial ownership
19 Mar 2025
4
Statement of changes in beneficial ownership
13 Mar 2025
4
Statement of changes in beneficial ownership
21 Jan 2025
NODELMAN OLEG
(10)
Expand
4
Statement of changes in beneficial ownership
27 Jun 2025
4
Statement of changes in beneficial ownership
19 May 2025
4
Statement of changes in beneficial ownership
18 Apr 2025
4
Statement of changes in beneficial ownership
7 Apr 2025
4
Statement of changes in beneficial ownership
2 Apr 2025
4
Statement of changes in beneficial ownership
27 Mar 2025
4
Statement of changes in beneficial ownership
24 Mar 2025
4
Statement of changes in beneficial ownership
19 Mar 2025
4
Statement of changes in beneficial ownership
13 Mar 2025
3
Initial statement of beneficial ownership
18 Feb 2025
Galbraith Kenneth
(8)
Expand
4
Statement of changes in beneficial ownership
12 Jan
4
Statement of changes in beneficial ownership
5 Jan
4
Statement of changes in beneficial ownership
22 Dec 2025
4
Statement of changes in beneficial ownership
10 Jan 2025
4
Statement of changes in beneficial ownership
6 Jan 2025
4
Statement of changes in beneficial ownership
8 Jan 2024
4
Statement of changes in beneficial ownership
6 Jan 2023
4
Statement of changes in beneficial ownership
23 Dec 2022
Smith Jeffrey T L
(6)
Expand
4
Statement of changes in beneficial ownership
12 Jan
4
Statement of changes in beneficial ownership
5 Jan
4
Statement of changes in beneficial ownership
10 Jan 2025
4
Statement of changes in beneficial ownership
6 Jan 2025
4
Statement of changes in beneficial ownership
8 Jan 2024
3
Initial statement of beneficial ownership
5 Jan 2024
Moore Paul Andrew
(6)
Expand
4
Statement of changes in beneficial ownership
12 Jan
4
Statement of changes in beneficial ownership
5 Jan
4
Statement of changes in beneficial ownership
10 Jan 2025
4
Statement of changes in beneficial ownership
6 Jan 2025
4
Statement of changes in beneficial ownership
8 Jan 2024
4
Statement of changes in beneficial ownership
6 Jan 2023
Campoy Carlos
(5)
Expand
4
Statement of changes in beneficial ownership
12 Jan
4
Statement of changes in beneficial ownership
12 Dec 2024
4
Statement of changes in beneficial ownership
8 Dec 2023
4
Statement of changes in beneficial ownership
30 Jun 2023
3
Initial statement of beneficial ownership
30 Jun 2023
Astle Christopher
(5)
Expand
4
Statement of changes in beneficial ownership
8 Jan 2024
4
Statement of changes in beneficial ownership
11 Dec 2023
4
Statement of changes in beneficial ownership
6 Jan 2023
4/A
Statement of changes in beneficial ownership (amendment)
23 Dec 2022
4
Statement of changes in beneficial ownership
14 Dec 2022
PATTERSON LEONE D
(4)
Expand
4
Statement of changes in beneficial ownership
7 Jan
4
Statement of changes in beneficial ownership
10 Jan 2025
4
Statement of changes in beneficial ownership
3 Sep 2024
3
Initial statement of beneficial ownership
3 Sep 2024
Redmile Group, LLC
(4)
Expand
4/A
OWNERSHIP DOCUMENT
18 Oct 2022
4
OWNERSHIP DOCUMENT
17 Oct 2022
3
OWNERSHIP DOCUMENT
17 Oct 2022
3
OWNERSHIP DOCUMENT
17 Oct 2022
Mahony Susan
(4)
Expand
4
Statement of changes in beneficial ownership
12 Jan
4
Statement of changes in beneficial ownership
12 Dec 2024
4
Statement of changes in beneficial ownership
8 Dec 2023
4
Statement of changes in beneficial ownership
23 Dec 2022
Neu Kelvin
(4)
Expand
4
Statement of changes in beneficial ownership
12 Jan
4
Statement of changes in beneficial ownership
12 Dec 2024
4
Statement of changes in beneficial ownership
8 Dec 2023
4
Statement of changes in beneficial ownership
23 Dec 2022
Green Jeremy
(4)
Expand
4
OWNERSHIP DOCUMENT
17 Oct 2022
3
OWNERSHIP DOCUMENT
17 Oct 2022
4/A
OWNERSHIP DOCUMENT
18 Oct 2022
3
OWNERSHIP DOCUMENT
17 Oct 2022
Cesano Alessandra
(4)
Expand
4
Statement of changes in beneficial ownership
12 Jan
4
Statement of changes in beneficial ownership
12 Dec 2024
4
Statement of changes in beneficial ownership
9 Feb 2024
3
Initial statement of beneficial ownership
9 Feb 2024
Miller Derek John Michael
(4)
Expand
4
Statement of changes in beneficial ownership
12 Dec 2024
4
Statement of changes in beneficial ownership
8 Dec 2023
4
Statement of changes in beneficial ownership
10 Apr 2023
3
Initial statement of beneficial ownership
10 Apr 2023
Landry Robert E
(3)
Expand
4
Statement of changes in beneficial ownership
12 Jan
4
Statement of changes in beneficial ownership
12 Aug 2025
3
Initial statement of beneficial ownership
12 Aug 2025
Cox Troy
(3)
Expand
4
Statement of changes in beneficial ownership
12 Dec 2024
4
Statement of changes in beneficial ownership
8 Dec 2023
4
Statement of changes in beneficial ownership
23 Dec 2022
Platshon Scott
(3)
Expand
3
Initial statement of beneficial ownership
10 Apr
4
Statement of changes in beneficial ownership
10 Apr
3
Initial statement of beneficial ownership
4 Mar 2024
Gallagher Neil
(3)
Expand
4
Statement of changes in beneficial ownership
12 Dec 2024
4
Statement of changes in beneficial ownership
2 Apr 2024
3
Initial statement of beneficial ownership
2 Apr 2024
Davidson Nancy
(3)
Expand
4
Statement of changes in beneficial ownership
12 Dec 2024
3
Initial statement of beneficial ownership
8 Dec 2023
4
Statement of changes in beneficial ownership
8 Dec 2023
Ciongoli Gregory Austin
(3)
Expand
4
Statement of changes in beneficial ownership
12 Jan
4
Statement of changes in beneficial ownership
12 Aug 2025
3
Initial statement of beneficial ownership
12 Aug 2025
Hollywood Mark
(3)
Expand
4
Statement of changes in beneficial ownership
6 Jul
4
Statement of changes in beneficial ownership
13 Jan
3
Initial statement of beneficial ownership
13 Jan
Schayowitz Adam
(3)
Expand
4
Statement of changes in beneficial ownership
9 Oct
3
Initial statement of beneficial ownership
10 Apr
4
Statement of changes in beneficial ownership
10 Apr
RENTON HOLLINGS
(2)
Expand
4
Statement of changes in beneficial ownership
8 Dec 2023
4
Statement of changes in beneficial ownership
23 Dec 2022
Cherry Brian N
(2)
Expand
3
Initial statement of beneficial ownership
13 Jan
4
Statement of changes in beneficial ownership
13 Jan
Schneider Paul R
(2)
Expand
4
Statement of changes in beneficial ownership
15 May
3
Initial statement of beneficial ownership
15 May
Hillan Kenneth J.
(2)
Expand
4
Statement of changes in beneficial ownership
8 Dec 2023
4
Statement of changes in beneficial ownership
23 Dec 2022
Klompas Neil A
(2)
Expand
4
Statement of changes in beneficial ownership
14 Mar 2023
4
Statement of changes in beneficial ownership
6 Jan 2023
Josephson Neil
(2)
Expand
4/A
Statement of changes in beneficial ownership (amendment)
23 Dec 2022
4
Statement of changes in beneficial ownership
14 Nov 2022
Stafford Kristin
(2)
Expand
4
Statement of changes in beneficial ownership
7 Apr
3
Initial statement of beneficial ownership
7 Apr
Zoth Lota S.
(1)
Expand
4
Statement of changes in beneficial ownership
23 Dec 2022
Sacks Natalie
(1)
Expand
4
Statement of changes in beneficial ownership
23 Dec 2022
Mekan Sabeen
(1)
Expand
3
Initial statement of beneficial ownership
2 Feb
≥5% Ownership
EcoR1 Capital, LLC
(12)
Expand
SC 13D/A
Zymeworks Inc.
19 Nov 2025
SC 13D
Zymeworks Inc.
27 Jun 2025
SC 13D/A
Zymeworks Inc.
8 Apr 2025
SC 13D/A
Zymeworks Inc.
17 Mar 2025
SC 13D/A
Zymeworks Inc.
18 Feb 2025
SC 13D/A
Zymeworks Inc.
13 Jan 2025
SC 13D/A
Zymeworks Inc.
23 Dec 2024
SC 13D
Zymeworks Inc.
22 Feb 2024
SC 13G/A
Zymeworks Inc.
14 Feb 2024
SC 13G/A
Zymeworks Inc.
21 Jun 2023
Redmile Group, LLC
(7)
Expand
SC 13G/A
Zymeworks Inc.
14 Nov 2025
SC 13G/A
Zymeworks Inc.
14 Aug 2025
SC 13G/A
Zymeworks Inc.
14 Feb 2025
SC 13G/A
Zymeworks Inc.
14 Nov 2024
SC 13G/A
Zymeworks Inc.
14 Feb 2024
SC 13G/A
Zymeworks Inc.
14 Feb 2023
SC 13G
Zymeworks Inc.
17 Oct 2022
MORGAN STANLEY
(4)
Expand
SC 13G/A
Zymeworks Inc.
12 Feb
SC 13G/A
Zymeworks Inc.
7 May 2025
SC 13G/A
Zymeworks Inc.
9 Feb 2024
SC 13G
Zymeworks Inc.
10 Feb 2023
BIOTECHNOLOGY VALUE FUND L P
(3)
Expand
SC 13G/A
Zymeworks Inc.
14 Nov 2025
SC 13G/A
Zymeworks Inc.
14 Nov 2024
SC 13G
Zymeworks Inc.
3 Jan 2023
PERCEPTIVE ADVISORS LLC
(3)
Expand
SC 13G
Zymeworks Inc.
15 Apr
SC 13G/A
Zymeworks Inc.
14 Feb 2024
SC 13G/A
Zymeworks Inc.
14 Feb 2023
Rubric Capital Management LP
(3)
Expand
SC 13G/A
Zymeworks Inc.
15 May
SC 13G/A
Zymeworks Inc.
13 Feb
SC 13G
Zymeworks Inc.
13 Nov 2024
BAKER BROS. ADVISORS LP
(2)
Expand
SC 13G/A
Zymeworks Inc.
14 Feb 2024
SC 13G/A
Zymeworks Inc.
14 Feb 2023
All Blue Falcons FZE
(2)
Expand
SC 13D/A
Zymeworks Inc.
28 Dec 2022
SC 13D/A
Zymeworks Inc.
28 Dec 2022
CREDIT SUISSE AG/
(1)
Expand
SC 13G/A
Zymeworks Inc.
2 Feb 2023
GOLDMAN SACHS GROUP INC
(1)
Expand
SC 13G/A
Zymeworks Inc.
10 Feb 2023
BlackRock Inc.
(1)
Expand
SC 13G
Zymeworks Inc.
29 Jan 2024
EVENTIDE ASSET MANAGEMENT, LLC
(1)
Expand
SC 13G/A
Zymeworks Inc.
14 Feb 2023
BlackRock, Inc.
(1)
Expand
SC 13G/A
Zymeworks Inc.
16 Jul 2025
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