ZYME · Zymeworks Inc. Common Stock
View on chartInsiders & Stakes
| EcoR1 Capital, LLC 10% Owner | ▼ Sell | Tax Withholding | 22,970,388 Shares held | 6/26/2025 | View profile |
| Redmile Group, LLC Director | ▲ Buy | Grant | 6,075,918 Shares held | 10/13/2022 | View profile |
| Gregory Austin Ciongoli | ▲ Buy | Grant | 488,500 Shares held | 8/12/2025 | View profile |
| Kenneth Galbraith Chair & CEO | ▼ Sell | Open Market | 226,842 Shares held | 1/12/2026 | View profile |
| Mark Hollywood EVP & Chief Operating Officer | ▲ Buy | Grant | 133,852 Shares held | 7/6/2026 | View profile |
| Paul Andrew Moore Chief Scientific Officer | ▼ Sell | Open Market | 48,497 Shares held | 1/12/2026 | View profile |
| Jeffrey T. L. Smith EVP & Chief Medical Officer | ▼ Sell | Open Market | 26,708 Shares held | 1/12/2026 | View profile |
| Klompas Neil A President & COO | ▼ Sell | Open Market | 17,032 Shares held | 3/10/2023 | View profile |
| Josephson Neil Chief Medical Officer | ▼ Sell | Open Market | 14,449 Shares held | 11/10/2022 | View profile |
| Astle Christopher SVP & Chief Financial Officer | ▼ Sell | Open Market | 6,503 Shares held | 1/8/2024 | View profile |
| Leone D. Patterson EVP, Chief Bus & Fin Officer | ▲ Buy | Grant | 459 Shares held | 1/6/2026 | View profile |
Transaction History
| Mark Hollywood | ▲ Buy | Grant | 939 | $21K | 7/6/2026 |
| Mark Hollywood | ▲ Buy | Option Exercise | 17,666 | $0 | 1/12/2026 |
| Mark Hollywood | ▼ Sell | Open Market | 6,120 | $139K | 1/12/2026 |
| Jeffrey T. L. Smith | ▲ Buy | Option Exercise | 17,666 | $0 | 1/12/2026 |
| Jeffrey T. L. Smith | ▼ Sell | Open Market | 9,310 | $211K | 1/12/2026 |
| Paul Andrew Moore | ▲ Buy | Option Exercise | 17,666 | $0 | 1/12/2026 |
| Paul Andrew Moore | ▼ Sell | Open Market | 9,560 | $217K | 1/12/2026 |
| Kenneth Galbraith | ▲ Buy | Option Exercise | 64,000 | $0 | 1/12/2026 |
| Kenneth Galbraith | ▼ Sell | Open Market | 30,424 | $690K | 1/12/2026 |
| Leone D. Patterson | ▲ Buy | Grant | 459 | $5K | 1/6/2026 |
| Jeffrey T. L. Smith | ▲ Buy | Option Exercise | 20,000 | $0 | 1/5/2026 |
| Jeffrey T. L. Smith | ▼ Sell | Open Market | 10,538 | $264K | 1/5/2026 |
| Kenneth Galbraith | ▲ Buy | Option Exercise | 47,668 | $0 | 1/5/2026 |
| Kenneth Galbraith | ▼ Sell | Open Market | 22,657 | $569K | 1/5/2026 |
| Kenneth Galbraith | ▲ Buy | Option Exercise | 66,666 | $0 | 1/5/2026 |
| Kenneth Galbraith | ▼ Sell | Open Market | 31,686 | $795K | 1/5/2026 |
| Paul Andrew Moore | ▲ Buy | Option Exercise | 17,168 | $0 | 1/5/2026 |
| Paul Andrew Moore | ▼ Sell | Open Market | 9,289 | $233K | 1/5/2026 |
| Paul Andrew Moore | ▲ Buy | Option Exercise | 20,000 | $0 | 1/5/2026 |
| Paul Andrew Moore | ▼ Sell | Open Market | 10,821 | $272K | 1/5/2026 |
| Kenneth Galbraith | ▲ Buy | Option Exercise | 100,000 | $0 | 12/22/2025 |
| Kenneth Galbraith | ▼ Sell | Open Market | 47,528 | $1.3M | 12/22/2025 |
| Gregory Austin Ciongoli | ▲ Buy | Grant | 415,000 | $5.0M | 8/12/2025 |
| EcoR1 Capital, LLC | ▼ Sell | Other | 5,086,480 | $509 | 6/26/2025 |
| EcoR1 Capital, LLC | ▼ Sell | Tax Withholding | 41 | $521 | 6/26/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 5,919 | $70K | 5/19/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 49,502 | $566K | 5/15/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 54,760 | $631K | 4/17/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 73,953 | $826K | 4/16/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 196,438 | $2.2M | 4/4/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 120,770 | $1.4M | 4/3/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 74,360 | $881K | 4/2/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 48,658 | $565K | 4/1/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 4,397 | $52K | 3/31/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 43,848 | $537K | 3/26/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 53,501 | $690K | 3/25/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 22,689 | $297K | 3/24/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 31,033 | $397K | 3/21/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 73,476 | $950K | 3/20/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 58,306 | $737K | 3/19/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 113,880 | $1.4M | 3/18/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 56,277 | $688K | 3/17/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 468,356 | $5.8M | 3/13/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 292,934 | $3.6M | 3/12/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 320,690 | $3.7M | 3/11/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 19,748 | $274K | 1/17/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 121,681 | $1.7M | 1/16/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 39,029 | $547K | 1/15/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 54,500 | $739K | 1/14/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 74,125 | $993K | 1/13/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 204,098 | $2.7M | 1/10/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 21,021 | $296K | 1/8/2025 |
| Paul Andrew Moore | ▲ Buy | Option Exercise | 17,166 | $0 | 1/6/2025 |
| Paul Andrew Moore | ▼ Sell | Open Market | 9,792 | $146K | 1/6/2025 |
| Paul Andrew Moore | ▲ Buy | Option Exercise | 20,000 | $0 | 1/6/2025 |
| Paul Andrew Moore | ▼ Sell | Open Market | 11,408 | $170K | 1/6/2025 |
| Kenneth Galbraith | ▲ Buy | Option Exercise | 66,666 | $0 | 1/6/2025 |
| Kenneth Galbraith | ▼ Sell | Open Market | 33,406 | $499K | 1/6/2025 |
| Jeffrey T. L. Smith | ▲ Buy | Option Exercise | 20,000 | $0 | 1/6/2025 |
| Jeffrey T. L. Smith | ▼ Sell | Open Market | 11,110 | $166K | 1/6/2025 |
| Kenneth Galbraith | ▲ Buy | Option Exercise | 47,666 | $0 | 1/6/2025 |
| Kenneth Galbraith | ▼ Sell | Open Market | 23,885 | $356K | 1/6/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 157,880 | $2.3M | 1/2/2025 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 146,501 | $2.1M | 12/31/2024 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 58,988 | $853K | 12/30/2024 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 101,659 | $1.5M | 12/27/2024 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 16,692 | $240K | 12/26/2024 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 11,958 | $169K | 12/24/2024 |
| Kenneth Galbraith | ▼ Sell | Open Market | 5,706 | $64K | 1/8/2024 |
| Astle Christopher | ▼ Sell | Open Market | 1,431 | $16K | 1/8/2024 |
| Paul Andrew Moore | ▼ Sell | Open Market | 2,339 | $26K | 1/8/2024 |
| Kenneth Galbraith | ▲ Buy | Option Exercise | 47,666 | $0 | 1/5/2024 |
| Kenneth Galbraith | ▼ Sell | Open Market | 18,198 | $194K | 1/5/2024 |
| Astle Christopher | ▲ Buy | Option Exercise | 10,500 | $0 | 1/5/2024 |
| Astle Christopher | ▼ Sell | Open Market | 4,563 | $49K | 1/5/2024 |
| Paul Andrew Moore | ▲ Buy | Option Exercise | 17,166 | $0 | 1/5/2024 |
| Paul Andrew Moore | ▼ Sell | Open Market | 7,460 | $79K | 1/5/2024 |
| Astle Christopher | ▲ Buy | Option Exercise | 1,550 | $0 | 12/11/2023 |
| Astle Christopher | ▼ Sell | Open Market | 886 | $8K | 12/11/2023 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 3,350,000 | $27.2M | 6/16/2023 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 200,000 | $1.6M | 3/28/2023 |
| Klompas Neil A | ▲ Buy | Option Exercise | 2,500 | $0 | 3/10/2023 |
| Klompas Neil A | ▲ Buy | Option Exercise | 2,708 | $0 | 3/10/2023 |
| Klompas Neil A | ▼ Sell | Open Market | 2,977 | $23K | 3/10/2023 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 163,400 | $1.6M | 1/20/2023 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 144,100 | $1.4M | 1/19/2023 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 203,000 | $2.0M | 1/18/2023 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 440,000 | $4.3M | 1/17/2023 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 342,100 | $3.4M | 1/13/2023 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 106,300 | $837K | 1/11/2023 |
| EcoR1 Capital, LLC | ▲ Buy | Open Market | 920,000 | $7.0M | 1/10/2023 |
| Astle Christopher | ▲ Buy | Option Exercise | 1,550 | $0 | 12/12/2022 |
| Astle Christopher | ▼ Sell | Open Market | 887 | $5K | 12/12/2022 |
| Josephson Neil | ▲ Buy | Option Exercise | 5,885 | $0 | 11/10/2022 |
| Josephson Neil | ▼ Sell | Open Market | 2,475 | $20K | 11/10/2022 |
| Redmile Group, LLC | ▲ Buy | Grant | 30,481 | $153K | 10/13/2022 |