Zymeworks Inc (ZYME) insider trading
Every open-market stock purchase and sale by Zymeworks Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Adam Schayowitz (VP) sold $358K in the last 90 days.
- Last insider buy: EcoR1 Capital LLC (10% owner), $69.7K, 17 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $5M (9 sales). Last close $28.11 on Oct 21, 2026.
Recent ZYME insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 9, 2026 | Adam Schayowitz (VP) | Sold | $358K |
| Oct 9, 2026 | Adam Schayowitz (VP) | Bought (not open market) | — |
| Oct 9, 2026 | Adam Schayowitz (VP) | Bought (not open market) | — |
| Jul 6, 2026 | Mark Hollywood (COO) | Bought (not open market) | $20.9K |
| May 13, 2026 | Paul R Schneider (VP) | Bought (not open market) | — |
| May 13, 2026 | Paul R Schneider (VP) | Bought (not open market) | — |
| Apr 9, 2026 | Adam Schayowitz (Insider) | Bought (not open market) | — |
| Apr 9, 2026 | Scott Platshon (C-suite exec) | Bought (not open market) | — |
| Apr 9, 2026 | Scott Platshon (C-suite exec) | Bought (not open market) | — |
| Apr 9, 2026 | Scott Platshon (C-suite exec) | Bought (not open market) | — |
| Apr 9, 2026 | Adam Schayowitz (Insider) | Bought (not open market) | — |
| Apr 9, 2026 | Adam Schayowitz (Insider) | Bought (not open market) | — |
| Apr 6, 2026 | Kristin Stafford (CFO) | Bought (not open market) | — |
| Apr 6, 2026 | Kristin Stafford (CFO) | Bought (not open market) | — |
| Apr 6, 2026 | Kristin Stafford (CFO) | Bought (not open market) | — |
| Jan 12, 2026 | Kenneth Galbraith (CEO) | Sold | $690K |
| Jan 12, 2026 | Paul Andrew Moore (C-suite exec) | Sold | $217K |
| Jan 12, 2026 | Jeffrey T L Smith (C-suite exec) | Sold | $211K |
| Jan 12, 2026 | Mark Hollywood (COO) | Sold | $139K |
| Jan 12, 2026 | Robert E Landry (Insider) | Bought (not open market) | — |
| Jan 12, 2026 | Robert E Landry (Insider) | Bought (not open market) | — |
| Jan 12, 2026 | Carlos Campoy (Insider) | Bought (not open market) | — |
| Jan 12, 2026 | Carlos Campoy (Insider) | Bought (not open market) | — |
| Jan 12, 2026 | Mark Hollywood (COO) | Bought (not open market) | — |
| Jan 12, 2026 | Mark Hollywood (COO) | Bought (not open market) | — |
Who's trading ZYME
- Adam Schayowitz, VP: sold $358K (1 sale), last Oct 9, 2026
- Mark Hollywood, COO: sold $139K (1 sale), last Jul 6, 2026
- Paul R Schneider, VP: other filings, last May 13, 2026
- Scott Platshon, C-suite exec: other filings, last Apr 9, 2026
- Kristin Stafford, CFO: other filings, last Apr 6, 2026
- Kenneth Galbraith, CEO: sold $3.3M (4 sales), last Jan 12, 2026
- Robert E Landry, Insider: other filings, last Jan 12, 2026
- Carlos Campoy, Insider: other filings, last Jan 12, 2026
- Alessandra Cesano, Insider: other filings, last Jan 12, 2026
- Brian N Cherry, Insider: other filings, last Jan 12, 2026
- Gregory Austin Ciongoli, Insider: other filings, last Jan 12, 2026
- Susan Mahony, Insider: other filings, last Jan 12, 2026
- Paul Andrew Moore, C-suite exec: sold $721K (3 sales), last Jan 12, 2026
- Kelvin Neu, Insider: other filings, last Jan 12, 2026
- Jeffrey T L Smith, C-suite exec: sold $476K (2 sales), last Jan 12, 2026
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