ZYME Zymeworks Inc.
Zymeworks Inc. (ZYME) Institutional Ownership
What the institutions did with ZYME last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| EcoR1 Capital, LLC | 23.0M | 33.0% |
| Rubric Capital Management LP | 7.0M | 10.1% |
| BlackRock, Inc. | 4.3M | 6.1% |
| PERCEPTIVE ADVISORS LLC | 4.2M | 6.0% |
| BVF INC/IL | 3.6M | 5.2% |
| Assenagon Asset Management S.A. | 2.5M | 3.6% |
| MORGAN STANLEY | 2.2M | 3.2% |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1.8M | 2.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.6M | 2.2% |
| Nextech Invest, Ltd. | 1.1M | 1.6% |
| STATE STREET CORP | 1.1M | 1.6% |
| DIMENSIONAL FUND ADVISORS LP | 995.0K | 1.4% |
| CITADEL ADVISORS LLC | 914.1K | 1.3% |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 889.8K | 1.3% |
| FMR LLC | 702.6K | 1.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 692.4K | 1.0% |
| Prosight Management, LP | 674.4K | 1.0% |
| Qube Research & Technologies Ltd | 593.6K | 0.9% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 510.0K | 0.7% |
| Redmile Group, LLC | 491.7K | 0.7% |
| Capricorn Fund Managers Ltd | 486.5K | 0.7% |
| GOLDMAN SACHS GROUP INC | 470.8K | 0.7% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 418.5K | 0.6% |
| DEUTSCHE BANK AG\ | 397.2K | 0.6% |
| Hillsdale Investment Management Inc. | 382.9K | 0.6% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Assenagon Asset Management S.A. | Increased | 728.0K | 2.5M | +1.8M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | New | 0 | 889.8K | +889.8K |
| PERCEPTIVE ADVISORS LLC | Increased | 3.5M | 4.2M | +672.9K |
| MPM BIOIMPACT LLC | Sold Out | 565.2K | 0 | -565.2K |
| Nuveen, LLC | Reduced | 651.7K | 119.4K | -532.3K |
| DEUTSCHE BANK AG\ | Reduced | 921.3K | 397.2K | -524.1K |
| Capricorn Fund Managers Ltd | Reduced | 1.0M | 486.5K | -520.7K |
| FIRST TRUST ADVISORS LP | New | 0 | 340.4K | +340.4K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 743.9K | 418.5K | -325.4K |
| BlackRock, Inc. | Reduced | 4.6M | 4.3M | -302.9K |
| ROYCE & ASSOCIATES LP | Sold Out | 299.2K | 0 | -299.2K |
| Pictet Asset Management Holding SA | Increased | 9.3K | 308.2K | +298.9K |
| MORGAN STANLEY | Reduced | 2.5M | 2.2M | -249.3K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 319.4K | 81.4K | -238.0K |
| HRT FINANCIAL LP | Sold Out | 237.9K | 0 | -237.9K |
| CITADEL ADVISORS LLC | Reduced | 1.2M | 914.1K | -235.9K |
| JANE STREET GROUP, LLC | Reduced | 227.0K | 17.4K | -209.5K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 1.7M | 1.6M | -146.6K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1.1M | 995.0K | -144.2K |
| Prosight Management, LP | Increased | 539.0K | 674.4K | +135.4K |
| GOLDMAN SACHS GROUP INC | Reduced | 599.5K | 470.8K | -128.7K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Reduced | 1.9M | 1.8M | -126.9K |
| SummitTX Capital, L.P. | Reduced | 321.4K | 210.8K | -110.6K |
| D. E. Shaw & Co., Inc. | Reduced | 235.6K | 144.8K | -90.8K |
| STATE OF WISCONSIN INVESTMENT BOARD | Increased | 66.1K | 155.6K | +89.5K |
| PANAGORA ASSET MANAGEMENT INC | Reduced | 206.9K | 118.6K | -88.3K |
| Granahan Investment Management, LLC | Increased | 250.8K | 336.2K | +85.4K |
| BVF INC/IL | Reduced | 3.7M | 3.6M | -85.0K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 83.5K | +83.5K |
| LMR Partners LLP | New | 0 | 82.5K | +82.5K |
| Qube Research & Technologies Ltd | Increased | 511.9K | 593.6K | +81.7K |
| STATE STREET CORP | Increased | 1.0M | 1.1M | +76.4K |
| TWO SIGMA INVESTMENTS, LP | New | 0 | 71.9K | +71.9K |
| AMERICAN CENTURY COMPANIES INC | Sold Out | 70.9K | 0 | -70.9K |
| Squarepoint Ops LLC | Reduced | 83.1K | 16.2K | -66.9K |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Increased | 163.6K | 223.8K | +60.1K |
| Manatuck Hill Partners, LLC | Increased | 40.0K | 100.0K | +60.0K |
| UBS Group AG | Reduced | 171.8K | 115.1K | -56.7K |
| MARTINGALE ASSET MANAGEMENT L P | Increased | 32.8K | 73.3K | +40.5K |
| Virtus Investment Advisers, LLC | Increased | 10.7K | 50.8K | +40.1K |
| Connor, Clark & Lunn Investment Management Ltd. | Sold Out | 37.9K | 0 | -37.9K |
| Hillsdale Investment Management Inc. | Increased | 345.6K | 382.9K | +37.3K |
| FMR LLC | Increased | 667.2K | 702.6K | +35.4K |
| Susquehanna Portfolio Strategies, LLC | Reduced | 99.8K | 65.2K | -34.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Reduced | 185.1K | 152.4K | -32.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 659.9K | 692.4K | +32.5K |
| Engineers Gate Manager LP | Sold Out | 31.5K | 0 | -31.5K |
| Fisher Asset Management, LLC | Reduced | 101.4K | 70.8K | -30.7K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 138.7K | 110.0K | -28.7K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Sold Out | 28.3K | 0 | -28.3K |
| OXFORD ASSET MANAGEMENT LLP | Sold Out | 27.8K | 0 | -27.8K |
| WELLS FARGO & COMPANY/MN | Increased | 189.6K | 217.2K | +27.6K |
| ExodusPoint Capital Management, LP | Sold Out | 27.4K | 0 | -27.4K |
| Brevan Howard Capital Management LP | New | 0 | 26.0K | +26.0K |
| Jump Financial, LLC | New | 0 | 25.6K | +25.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 24.4K | 0 | -24.4K |
| Headlands Technologies LLC | Sold Out | 22.8K | 0 | -22.8K |
| HSBC HOLDINGS PLC | Reduced | 37.8K | 15.6K | -22.2K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Reduced | 39.8K | 18.3K | -21.5K |
| SEGALL BRYANT & HAMILL, LLC | Increased | 45.7K | 66.8K | +21.1K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.