ZYME Zymeworks Inc.

NASDAQ
$26.57

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.

Managers compared
229
filed both this quarter and last
Managers holding
199
-8 on the quarter
Buyers
82
22 opened new
Sellers
103
30 sold out entirely
Buyer share
44.3%
of managers who traded it
Breadth
-11.4
net buyers, as a share of those trading

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.

Sign in or subscribe

Ownership map

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.

Cut Unchanged Added Color saturates at ±50%.

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.