Zymeworks Inc is a clinical-stage biopharmaceutical company dedicated to the discovery, development and commercialization of next-generation multifunctional biotherapeutics. Its suite of therapeutic platforms and its fully integrated drug development engine enables precise engineering of differentiated therapeutic product candidates. Its clinical candidate, zanidatamab, is a novel HER2-targeted bispecific antibody currently being evaluated in multiple Phase 1, Phase 2, and pivotal clinical trials globally as a targeted treatment option for patients with solid tumors that express HER2. It is also advancing a deep preclinical pipeline in oncology and other therapeutic areas.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Grant or award | 1 | 939 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
33 Form 4 filings on record, the earliest from Dec 12, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Grant or award | Common Stock | 939 | $22.22 | $21K | ||
| Paul R. Schneider - Officer | Grant or award | Stock Option (Right to Buy) | 178,000 | $0.00 | - | |
| Paul R. Schneider - Officer | Grant or award | Restricted Stock Unit | 119,000 | $0.00 | - | |
| Adam Schayowitz - Officer | Grant or award | Stock Option (Right to Buy) | 70,000 | $0.00 | - | |
| Adam Schayowitz - Officer | Grant or award | Restricted Stock Unit | 47,000 | $0.00 | - | |
| Adam Schayowitz - Officer | Grant or award | Performance Stock Unit | 76,000 | $0.00 | - | |
| Scott Platshon - Officer | Grant or award | Stock Option (Right to Buy) | 70,000 | $0.00 | - | |
| Scott Platshon - Officer | Grant or award | Restricted Stock Unit | 47,000 | $0.00 | - | |
| Scott Platshon - Officer | Grant or award | Performance Stock Unit | 76,000 | $0.00 | - | |
| Kristin Stafford - Officer | Grant or award | Stock Option (Right to Buy) | 178,000 | $0.00 | - | |
| Kristin Stafford - Officer | Grant or award | Restricted Stock Unit | 119,000 | $0.00 | - | |
| Kristin Stafford - Officer | Grant or award | Restricted Stock Unit | 50,000 | $0.00 | - | |
| Option exercise | Common Stock | 17,666 | $0.00 | - | ||
| Open-market sale | Common Stock | 6,120 | $22.67 | $139K | ||
| Option exercise | Restricted Stock Unit | 17,666 | $0.00 | - | ||
| Grant or award | Stock Option (Right to Buy) | 70,000 | $0.00 | - | ||
| Grant or award | Restricted Stock Unit | 47,000 | $0.00 | - | ||
| Grant or award | Performance Stock Unit | 66,000 | $0.00 | - | ||
| Brian N. Cherry | Grant or award | Stock Option (Right to Buy) | 23,000 | $0.00 | - | |
| Brian N. Cherry | Grant or award | Restricted Stock Unit | 15,400 | $0.00 | - | |
| Option exercise | Common Stock | 17,666 | $0.00 | - | ||
| Open-market sale | Common Stock | 9,310 | $22.67 | $211K | ||
| Option exercise | Restricted Stock Unit | 17,666 | $0.00 | - | ||
| Gregory Austin Ciongoli | Grant or award | Stock Option (Right to Buy) | 11,500 | $0.00 | - | |
| Gregory Austin Ciongoli | Grant or award | Restricted Stock Unit | 7,700 | $0.00 | - | |
| Kelvin Neu | Grant or award | Stock Option (Right to Buy) | 11,500 | $0.00 | - | |
| Kelvin Neu | Grant or award | Restricted Stock Unit | 7,700 | $0.00 | - | |
| Robert E. Landry | Grant or award | Stock Option (Right to Buy) | 11,500 | $0.00 | - | |
| Robert E. Landry | Grant or award | Restricted Stock Unit | 7,700 | $0.00 | - | |
| Alessandra Cesano | Grant or award | Stock Option (Right to Buy) | 11,500 | $0.00 | - | |
| Alessandra Cesano | Grant or award | Restricted Stock Unit | 7,700 | $0.00 | - | |
| Carlos Campoy | Grant or award | Stock Option (Right to Buy) | 11,500 | $0.00 | - | |
| Carlos Campoy | Grant or award | Restricted Stock Unit | 7,700 | $0.00 | - | |
| Susan Mahony | Grant or award | Stock Option (Right to Buy) | 11,500 | $0.00 | - | |
| Susan Mahony | Grant or award | Restricted Stock Unit | 7,700 | $0.00 | - | |
| Paul Andrew Moore - Officer | Option exercise | Common Stock | 17,666 | $0.00 | - | |
| Paul Andrew Moore - Officer | Open-market sale | Common Stock | 9,560 | $22.67 | $217K | |
| Paul Andrew Moore - Officer | Option exercise | Restricted Stock Unit | 17,666 | $0.00 | - | |
| Paul Andrew Moore - Officer | Grant or award | Stock Option (Right to Buy) | 70,000 | $0.00 | - | |
| Paul Andrew Moore - Officer | Grant or award | Restricted Stock Unit | 47,000 | $0.00 | - | |
| Paul Andrew Moore - Officer | Grant or award | Performance Stock Unit | 66,000 | $0.00 | - | |
| Kenneth Galbraith - Officer | Option exercise | Common Stock | 64,000 | $0.00 | - | |
| Kenneth Galbraith - Officer | Open-market sale | Common Stock | 30,424 | $22.67 | $690K | |
| Kenneth Galbraith - Officer | Option exercise | Restricted Stock Unit | 64,000 | $0.00 | - | |
| Kenneth Galbraith - Officer | Grant or award | Stock Option (Right to Buy) | 216,000 | $0.00 | - | |
| Kenneth Galbraith - Officer | Grant or award | Restricted Stock Unit | 144,000 | $0.00 | - | |
| Kenneth Galbraith - Officer | Grant or award | Performance Stock Unit | 222,000 | $0.00 | - | |
| Leone D. Patterson - Officer | Grant or award | Common Stock | 459 | $10.55 | $5K | |
| Option exercise | Common Stock | 20,000 | $0.00 | - | ||
| Open-market sale | Common Stock | 10,538 | $25.10 | $264K | ||
| Option exercise | Restricted Stock Unit | 20,000 | $0.00 | - | ||
| Kenneth Galbraith - Officer | Option exercise | Common Stock | 47,668 | $0.00 | - | |
| Kenneth Galbraith - Officer | Open-market sale | Common Stock | 22,657 | $25.10 | $569K | |
| Kenneth Galbraith - Officer | Option exercise | Common Stock | 66,666 | $0.00 | - | |
| Kenneth Galbraith - Officer | Open-market sale | Common Stock | 31,686 | $25.10 | $795K | |
| Kenneth Galbraith - Officer | Option exercise | Restricted Stock Unit | 47,668 | $0.00 | - | |
| Kenneth Galbraith - Officer | Option exercise | Restricted Stock Unit | 66,666 | $0.00 | - | |
| Paul Andrew Moore - Officer | Option exercise | Common Stock | 17,168 | $0.00 | - | |
| Paul Andrew Moore - Officer | Open-market sale | Common Stock | 9,289 | $25.10 | $233K | |
| Paul Andrew Moore - Officer | Option exercise | Common Stock | 20,000 | $0.00 | - | |
| Paul Andrew Moore - Officer | Open-market sale | Common Stock | 10,821 | $25.10 | $272K | |
| Paul Andrew Moore - Officer | Option exercise | Restricted Stock Unit | 17,168 | $0.00 | - | |
| Paul Andrew Moore - Officer | Option exercise | Restricted Stock Unit | 20,000 | $0.00 | - | |
| Kenneth Galbraith - Officer | Option exercise | Common Stock | 100,000 | $0.00 | - | |
| Kenneth Galbraith - Officer | Open-market sale | Common Stock | 47,528 | $27.02 | $1.28M | |
| Kenneth Galbraith - Officer | Option exercise | Restricted Stock Unit | 100,000 | $0.00 | - | |
| Gregory Austin Ciongoli | Grant or award | Common Stock | 415,000 | $12.02 | $4.99M | |
| Gregory Austin Ciongoli | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
| Robert E. Landry | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
| EcoR1 Capital, LLC - Director | Open-market purchase | Common Stock | 11,958 | $14.12 | $169K | |
| EcoR1 Capital, LLC - Director | Open-market purchase | Common Stock | 16,692 | $14.38 | $240K | |
| EcoR1 Capital, LLC - Director | Open-market purchase | Common Stock | 101,659 | $14.49 | $1.47M | |
| EcoR1 Capital, LLC - 10% Owner | Open-market purchase | Pre-Funded Warrants | 5,086,521 | $9.83 | $50.00M | |
| Nancy Davidson | Grant or award | Stock Option (Right to Buy) | 31,000 | $0.00 | - | |
| Derek John Michael Miller | Grant or award | Stock Option (Right to Buy) | 31,000 | $0.00 | - | |
| Alessandra Cesano | Grant or award | Stock Option (Right to Buy) | 31,000 | $0.00 | - | |
| Kelvin Neu | Grant or award | Stock Option (Right to Buy) | 31,000 | $0.00 | - | |
| Susan Mahony | Grant or award | Stock Option (Right to Buy) | 31,000 | $0.00 | - |
Zymeworks Inc. (ZYME) had 1 insider filing in the last 90 days, with the most recent on 2026-07-06. The full record for ZYME runs to 33 Form 4 filings, the earliest from 2024-12-12. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of ZYME were filed in the last 90 days. 4 purchases are on record for this company.
No insider sales of ZYME were filed in the last 90 days. 10 sales are on record for this company.
This page tracks ZYME Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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