ZYME Zymeworks Inc.: institutional ownership and insider trading
216 funds reported holding $1.88B of Zymeworks Inc. in their latest 13F filings; in Q2 2026 funds net sold $55.5M, with 22 new positions and 32 funds selling out; over the last 12 months insiders bought $0 and sold $5.03M on the open market.
Famous investors holding ZYME
- Ken Griffin (Citadel Advisors): $25.3M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $3.79M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $1.88M, 0.0% of the portfolio
Largest institutional holders of ZYME
- EcoR1 Capital, LLC — $600M
- Rubric Capital Management LP — $183M
- BlackRock, Inc. (BLK) — $111M
- PERCEPTIVE ADVISORS LLC — $109M
- BVF INC/IL — $95.4M
- VANGUARD GROUP INC — $61.3M
- MORGAN STANLEY (MS, MS-PA, MS-PE, MS-PF, MS-PI, MS-PK, MS-PL, MS-PO, MS-PP, MS-PQ) — $58.3M
- BNP Paribas Asset Management Holding S.A. — $46.6M
- VANGUARD CAPITAL MANAGEMENT LLC — $40.8M
- Assenagon Asset Management S.A. — $39.9M
Recent ZYME insider trades
- Oct 9, 2026: Schayowitz Adam sold 13,832 shares ($358K)
- Jan 12, 2026: Hollywood Mark sold 6,120 shares ($139K)
- Jan 12, 2026: Galbraith Kenneth sold 30,424 shares ($690K)
- Jan 12, 2026: Moore Paul Andrew sold 9,560 shares ($217K)
5%+ owners
- Rubric Capital Management LP: 9.5% (Schedule 13G/A, filed May 15, 2026)
- Perceptive Advisors LLC: 5.4% (Schedule 13G, filed Apr 15, 2026)