Zymeworks Inc

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Zymeworks Inc
TickerZYME
CIK #0001937653
CUSIP98985Y108
SectorLife Sciences - Pharmaceutical Preparations
Address108 Patriot Drive, Suite A, Middletown, DE 19709
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Zymeworks Inc 2024-01-03 50.0 M Exemption: 506(b) · Remaining: $509 · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001937653] 10-K
[0001937653] 10-Q
[0001937653] 3
[0001937653] 4
[0001937653] 8-K
[0001937653] D
[0001937653] SC 13D
[0001937653] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Perceptive Advisors LLC Zymeworks Inc [2026-04-15] 0.0
EcoR1 Capital LLC Zymeworks Inc [2025-06-27] 0.0
Rubric Capital Management LP Zymeworks Inc [2024-11-13] 5.51
EcoR1 Capital LLC Zymeworks Inc [2024-02-22] 19.99
BlackRock Inc Zymeworks Inc [2024-01-29] 5.6
Morgan Stanley Zymeworks Inc [2023-02-10] 8.9
Biotechnology Value Fund L P Zymeworks Inc [2023-01-03] 5.0
EcoR1 Capital LLC Zymeworks Inc [2022-10-28] 0.9
Redmile Group LLC Zymeworks Inc [2022-10-17] 10.1
Form 3/4/5 Filer 2011 - 2026
Zymeworks Inc
Hollywood Mark
Schneider Paul R
Platshon Scott
Schayowitz Adam
Stafford Kristin
Mekan Sabeen
Cherry Brian N
Moore Paul Andrew
Smith Jeffrey T L
Ciongoli Gregory Austin
Neu Kelvin
Landry Robert E
Cesano Alessandra
Campoy Carlos
Galbraith Kenneth
Mahony Susan
Patterson Leone D
EcoR1 Capital LLC
Nodelman OLEG
Davidson Nancy
Miller Derek John Michael
Gallagher Neil
Cox Troy
Astle Christopher
Renton Hollings
Hillan Kenneth
Klompas Neil A
Zoth Lota S
Sacks Natalie
Josephson Neil
Redmile Group LLC
Green Jeremy
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Hollywood Mark
Common Stock
2026-01-12 Sell 6,120 $22.67 138,740
Hollywood Mark
Common Stock
2026-01-12 Option exercise 17,666 $0.00
Smith Jeffrey T L
Common Stock
2026-01-12 Option exercise 17,666 $0.00
Smith Jeffrey T L
Common Stock
2026-01-12 Sell 9,310 $22.67 211,058
Moore Paul Andrew
Common Stock
2026-01-12 Option exercise 17,666 $0.00
Moore Paul Andrew
Common Stock
2026-01-12 Sell 9,560 $22.67 216,725
Galbraith Kenneth
Common Stock
2026-01-12 Option exercise 64,000 $0.00
Galbraith Kenneth
Common Stock
2026-01-12 Sell 30,424 $22.67 689,712
Hollywood Mark
Restricted Stock Unit · derivative
2026-01-12 Grant 47,000 $0.00
Hollywood Mark
Performance Stock Unit · derivative
2026-01-12 Grant 66,000 $0.00
Hollywood Mark
Stock Option (Right to Buy) · derivative
2026-01-12 Grant 70,000 $0.00
Hollywood Mark
Restricted Stock Unit · derivative
2026-01-12 Option exercise 17,666 $0.00
Cherry Brian N
Stock Option (Right to Buy) · derivative
2026-01-12 Grant 23,000 $0.00
Cherry Brian N
Restricted Stock Unit · derivative
2026-01-12 Grant 15,400 $0.00
Smith Jeffrey T L
Restricted Stock Unit · derivative
2026-01-12 Option exercise 17,666 $0.00
Ciongoli Gregory Austin
Restricted Stock Unit · derivative
2026-01-12 Grant 7,700 $0.00
Ciongoli Gregory Austin
Stock Option (Right to Buy) · derivative
2026-01-12 Grant 11,500 $0.00
Neu Kelvin
Stock Option (Right to Buy) · derivative
2026-01-12 Grant 11,500 $0.00
Neu Kelvin
Restricted Stock Unit · derivative
2026-01-12 Grant 7,700 $0.00
Landry Robert E
Restricted Stock Unit · derivative
2026-01-12 Grant 7,700 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 214 70,518,333
2025-12-31 211 69,964,155
2025-09-30 184 73,925,848
2025-06-30 182 73,637,248
2025-03-31 187 68,410,489
2024-12-31 174 64,023,678
2024-09-30 164 64,569,747
2024-06-30 165 65,797,249
2024-03-31 172 75,094,569
2023-12-31 158 66,680,579
2023-09-30 140 61,258,423
2023-06-30 139 61,168,967
Form 13F Holdings
Firm Period DFND Voting Shares
Assenagon Asset Management SA [2026-06-30] SOLE 1,252,027 1,252,027
TEMA ETFS LLC [2026-06-30] SOLE 105,615 105,615
Y-Intercept Hong Kong Ltd [2026-06-30] SOLE 83,455 83,455
PSP Research LLC [2026-06-30] SOLE 0 10,000
Gamma Investing LLC [2026-06-30] DFND 1,114 1,114
Fortitude Family Office LLC [2026-06-30] SOLE 116 116
IFP Advisors LLC [2026-06-30] SOLE 96 96
True Wealth Design LLC [2026-06-30] SOLE 0 58
Physician Wealth Advisors Inc [2026-06-30] SOLE 0 51
Versant Capital Management Inc [2026-06-30] SOLE 45 45
Farther Finance Advisors LLC [2026-06-30] SOLE 0 30
Hughes Financial Services LLC [2026-06-30] SOLE 3 3
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