13F

Stock

Zymeworks Inc.

ZYME · held by 211 managers

Reported value

$1.75B

Holders

211

+34 new · −35 exited

Holders’ est. mark

−$31.2M

Price effect on 171 books still in the name

Largest holder

$575.2M

EcoR1 Capital, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
EcoR1 Capital, LLC23M$575.2M−$29.6MCut−$29.6M
Rubric Capital Management LP7M$175.3M−$7.42MAdded$23.9M
BlackRock, Inc.4.55M$114M−$5.87MCut−$6.97M
BVF INC/IL3.73M$93.5M−$4.82MCut−$10.2M
PERCEPTIVE ADVISORS LLC3.51M$87.9M−$4.21MAdded$2.01M
MORGAN STANLEY2.48M$62.1M−$3.2MCut−$6.16M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1.91M$47.8M$45.6MAdded$47.7M
VANGUARD CAPITAL MANAGEMENT LLC1.71M$42.7MHeld
Citadel1.15M$28.8M−$329.4KAdded$22.1M
DIMENSIONAL FUND ADVISORS LP1.14M$28.5M−$1.48MCut−$2M
Nextech Invest, Ltd.1.11M$27.9M−$1.44MCut−$1.44M
State Street1.01M$25.3M−$1.31MCut−$1.99M
Capricorn Fund Managers Ltd1.01M$25.2M−$1.3MCut−$1.71M
DEUTSCHE BANK AG\921.3K$23.1M−$1.19MCut−$19M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP743.9K$18.6M−$903KAdded$196.2K
Assenagon Asset Management S.A.728K$18.2M−$835.1KAdded$1.18M
Fidelity667.2K$16.7M−$722.5KAdded$1.96M
GEODE CAPITAL MANAGEMENT, LLC659.9K$16.5M−$835.8KCut−$536.1K
Nuveen, LLC651.7K$16.3M−$836.3KCut−$752.8K
GOLDMAN SACHS GROUP INC599.5K$15M−$542.1KAdded$3.95M
MPM BIOIMPACT LLC565.2K$14.2MNew
Prosight Management, LP539K$13.5M−$684.2KCut−$467.5K
Qube Research & Technologies Ltd511.9K$12.8M−$611.8KAdded$330.8K
VANGUARD PORTFOLIO MANAGEMENT LLC499.9K$12.5MHeld
Redmile Group, LLC491.7K$12.3M−$634.2KCut−$634.2K
Hillsdale Investment Management Inc.345.6K$8.65M−$306.9KAdded$2.39M
SummitTX Capital, L.P.321.4K$8.05M−$289.3KAdded$2.14M
NORTHERN TRUST CORP320.2K$8.02M−$397.3KCut−$91K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC319.4K$8M−$412KCut−$435.1K
ROYCE & ASSOCIATES LP299.2K$7.49MNew
PICTON MAHONEY ASSET MANAGEMENT256.7K$6.43M−$315.8KCut−$18K
Granahan Investment Management, LLC250.8K$6.28M−$289.5KAdded$370.7K
BANK OF AMERICA CORP /DE/236.8K$5.93M−$115.5KAdded$3.57M
D. E. Shaw & Co., Inc.235.6K$5.9M−$288.7KAdded$7.67K
JANE STREET GROUP, LLC227K$5.68M−$90.9KAdded$3.83M
PANAGORA ASSET MANAGEMENT INC206.9K$5.18M−$101.1KAdded$3.12M
Man Group plc189.9K$4.75M−$97.2KAdded$2.77M
WELLS FARGO & COMPANY/MN189.6K$4.75M−$244.6KCut−$736.4K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC185.1K$4.64M−$238.8KCut−$1.18M
FEDERATED HERMES, INC.182.4K$4.57M−$197KAdded$547.2K
RAYMOND JAMES FINANCIAL INC176.4K$4.42M−$227.6KCut−$524.4K
UBS Group AG171.8K$4.3M−$221.6KCut−$3.04M
SILVERCREST ASSET MANAGEMENT GROUP LLC163.6K$4.1M−$211.1KCut−$688.8K
KENNEDY CAPITAL MANAGEMENT LLC148.2K$3.71M−$187.7KCut−$120.3K
XTX Topco Ltd143.9K$3.6M−$120.6KAdded$1.14M
DIADEMA PARTNERS LP142.1K$3.56MNew
WELLINGTON MANAGEMENT GROUP LLP138.7K$3.47M−$178.9KCut−$1.31M
Invesco Ltd.125.6K$3.15M−$162.1KCut−$3.64M
Bank of New York Mellon Corp124.1K$3.11M−$160.1KCut−$266.1K
CITIGROUP INC114.3K$2.86M−$143.5KCut−$65.3K
JPMORGAN CHASE & CO114.1K$2.76M−$74.2KAdded$1.84M
PLATINUM INVESTMENT MANAGEMENT LTD105.2K$2.63M−$135.7KCut−$135.7K
TEMA ETFS LLC104.9K$2.63M−$98KAdded$627K
Tidal Investments LLC104.9K$2.63MNew
Fisher Asset Management, LLC101.4K$2.54M−$88KAdded$744.4K
Susquehanna Portfolio Strategies, LLC99.8K$2.5M−$128.7KCut−$128.7K
Icahn Capital90.7K$2.27M−$117KCut−$127.7K
KORNITZER CAPITAL MANAGEMENT INC /KS88.8K$2.22M−$114.6KCut−$114.6K
VANGUARD FIDUCIARY TRUST CO84.4K$2.11MHeld
Squarepoint Ops LLC83.1K$2.08MNew
MACKENZIE FINANCIAL CORP82.7K$2.07M−$65.8KAdded$867.3K
Verdad Advisers, LP82.7K$2.07MNew
PRINCIPAL FINANCIAL GROUP INC78.5K$1.97MNew
FRANKLIN RESOURCES INC77.7K$1.94M−$76.1KAdded$391.5K
STIFEL FINANCIAL CORP76.8K$1.92M−$97.8KCut−$75.1K
RHUMBLINE ADVISERS75.4K$1.89M−$97.3KCut−$99.9K
CREDIT AGRICOLE S A75K$1.88M−$96.7KCut−$96.8K
AMERIPRISE FINANCIAL INC74.2K$1.86M−$95.7KCut−$1.12M
Swiss National Bank74.2K$1.86M−$95.7KCut−$95.7K
AMERICAN CENTURY COMPANIES INC70.9K$1.77M−$75.9KAdded$225.1K
STATE OF WISCONSIN INVESTMENT BOARD66.1K$1.66M−$85.3KCut−$334.4K
ALLIANCEBERNSTEIN L.P.55.9K$1.47M$0Added$154.5K
Dana Investment Advisors, Inc.56.1K$1.4M−$62.3KAdded$132.7K
Campbell & CO Investment Adviser LLC54.9K$1.37M−$43.3KAdded$489.9K
Russell Investments Group, Ltd.47.5K$1.19M−$61.2KCut−$348.2K
ROYAL BANK OF CANADA47.4K$1.19M−$60.3KCut−$263K
SEGALL BRYANT & HAMILL, LLC45.7K$1.14MNew
JACOBS LEVY EQUITY MANAGEMENT, INC42.8K$1.07MNew
VICTORY CAPITAL MANAGEMENT INC42.4K$1.06M−$54.7KCut−$67.9K
ENVESTNET ASSET MANAGEMENT INC40.4K$1.01M−$52.1KCut−$62.5K
Manatuck Hill Partners, LLC40K$1MNew
LOS ANGELES CAPITAL MANAGEMENT LLC39.8K$995.3K$2.29KAdded$987.9K
Quantinno Capital Management LP39.6K$992.6K−$37.3KAdded$232.1K
Zurcher Kantonalbank (Zurich Cantonalbank)39.4K$985.4K−$26.3KAdded$447.8K
Connor, Clark & Lunn Investment Management Ltd.37.9K$949.5KNew
HSBC HOLDINGS PLC37.8K$940.1K−$31.5KAdded$463.9K
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM37.4K$936.2K−$48.2KCut−$58K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC37.1K$929.7K−$47.9KCut−$203.8K
TUDOR INVESTMENT CORP ET AL36.9K$923.4K−$39.1KAdded$124.9K
HighTower Advisors, LLC36.3K$908KNew
Persistent Asset Partners Ltd35.9K$899.8K−$9.48KAdded$706.4K
HighVista Strategies LLC34.1K$853.5KNew
Vinva Investment Management Ltd24.1K$850.8K−$52.4KAdded$366.9K
MARTINGALE ASSET MANAGEMENT L P32.8K$820.4KNew
Creative Planning32.4K$811.1K−$36.5KAdded$66.2K
MARSHALL WACE, LLP32.2K$806.9KNew
MANUFACTURERS LIFE INSURANCE COMPANY, THE31.6K$791.1K−$22.5KAdded$332.1K
Engineers Gate Manager LP31.5K$790KNew
SBI Okasan Asset Management Co.Ltd.32K$774.7K−$81KCut−$81K
Universal- Beteiligungs- und Servicegesellschaft mbH30.4K$762K−$39.3KCut−$102K
STRS OHIO30.1K$753.7K−$34.3KAdded$53.3K
MetLife Investment Management, LLC29.7K$742.5K−$36.9KCut−$11.3K
JOURNEY STRATEGIC WEALTH LLC29.1K$727.4K−$37.5KCut−$37.5K
BNP PARIBAS FINANCIAL MARKETS28.1K$704.1K−$30.1KAdded$90.7K
OXFORD ASSET MANAGEMENT LLP27.8K$696.4KNew
SCHRODER INVESTMENT MANAGEMENT GROUP28.3K$686.3K−$66.1KCut−$1.91M
ExodusPoint Capital Management, LP27.4K$685.4KNew
MASSACHUSETTS FINANCIAL SERVICES CO /MA/27.4K$684.9K−$35.3KCut−$54.5K
VANGUARD ASSET MANAGEMENT, Ltd26.3K$658KHeld
Legal & General Group Plc26.2K$656.3K−$33.8KCut−$190.2K
COMMONWEALTH EQUITY SERVICES, LLC26K$651.8K−$33.6KCut−$35.3K
SUSQUEHANNA INTERNATIONAL GROUP, LLP24.4K$611.5K−$31.5KCut−$4.02M
RITHOLTZ WEALTH MANAGEMENT24.2K$607K−$31.3KCut−$33.8K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.23.4K$585.3K−$29.8KCut−$23.2K
Headlands Technologies LLC22.8K$572KNew
Duncan Williams Asset Management, LLC22.1K$553.3K$42.6KAdded$42.6K
PRUDENTIAL FINANCIAL INC22K$550.1K−$16.5KAdded$214.3K
BARCLAYS PLC18.4K$460.1K−$23.7KCut−$1.65M
JANUS HENDERSON GROUP PLC18.2K$455.8K−$23.3KCut−$23.3K
BANK OF MONTREAL /CAN/17.5K$437.4K−$22.5KCut−$22.5K
NEW YORK STATE COMMON RETIREMENT FUND17.4K$435K−$22.4KCut−$22.4K
State of Wyoming17.1K$429.4K−$14KAdded$143K
Quadrature Capital Ltd16.7K$419K−$21.6KCut−$187K
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM15.3K$384.1K−$19.8KCut−$19.8K
AGF MANAGEMENT LTD15K$375.6K−$19.3KCut−$19.4K
Amundi14.1K$352.7KNew
Police & Firemen's Retirement System of New Jersey13.7K$343.1K−$17.7KCut−$17.7K
China Universal Asset Management Co., Ltd.13.3K$332.5K−$15.7KAdded$11.4K
Freestone Grove Partners LP12.9K$324.1KNew
State of New Jersey Common Pension Fund D12.8K$320.2KNew
Northwest & Ethical Investments L.P.12.2K$316.4K−$8.43KCut−$3.26K
INTECH INVESTMENT MANAGEMENT LLC12.5K$314K−$16.2KCut−$221.3K
Abacus Wealth Partners, LLC11.7K$292.2K−$13.2KAdded$23K
JAMES INVESTMENT RESEARCH, INC.10.9K$273.6K−$14.1KCut−$14.1K
Ewing Morris & Co. Investment Partners Ltd.10.8K$271.7K−$17.5KCut−$17.5K
Virtus Investment Advisers, LLC10.7K$268K−$13.5KCut−$6.93K
LAZARD ASSET MANAGEMENT LLC10.6K$265.5K−$13.7KCut−$97.2K
ProShare Advisors LLC10.6K$264.8K−$13.6KCut−$61.4K
ARIZONA STATE RETIREMENT SYSTEM10.3K$257.3K−$13.3KCut−$16.4K
Soleus Capital Management, L.P.10K$250.4K−$12.9KCut−$2.38M
PSP Research LLC10K$250.4K−$12.9KCut−$284.4K
Pictet Asset Management Holding SA9.26K$231.8K−$15.4KCut−$1.73M
VOYA INVESTMENT MANAGEMENT LLC8.99K$225.2K−$11.6KCut−$17.9K
Allspring Global Investments Holdings, LLC8.51K$220.7K−$5.24KAdded$15.5K
Vanguard Investments Australia, Ltd.8.8K$220.4KHeld
WINTON GROUP Ltd8.4K$210.3K−$10.8KCut−$84K
KLP KAPITALFORVALTNING AS8K$200.3K−$10.3KCut−$10.3K
CWM, LLC6.96K$174.2K$174KAdded$174K
Vanguard Global Advisers, LLC5.46K$136.7KHeld
Tower Research Capital LLC (TRC)4.87K$121.9K−$1.74KAdded$86.3K
Ameritas Investment Partners, Inc.4.16K$104.3K−$5.37KCut−$5.37K
Mirae Asset Global Investments Co., Ltd.3.9K$97.7K−$4.69KAdded$1.97K
GF FUND MANAGEMENT CO. LTD.1.68K$42.1K−$1.9KAdded$3.39K
Global Wealth Strategies & Associates1.64K$40.9KNew
Sofinnova Investments, Inc.1.61K$40.3KNew
TD Waterhouse Canada Inc.1.44K$37.2K−$153Added$29K
SIMPLEX TRADING, LLC1.34K$33.5K−$1.72KCut−$1.23M
Aviso Financial Inc.1.15K$28.7KNew
GAMMA Investing LLC1.1K$27.5K−$1.27KAdded$1.53K
PNC Financial Services Group, Inc.987$24.7K−$1.01KAdded$4.15K
NISA INVESTMENT ADVISORS, LLC971$24.3K−$1.25KCut−$1.17K
Steward Partners Investment Advisory, LLC971$24.3K−$68Added$22.9K
Optiver Holding B.V.958$24K−$1.3KCut−$6.32K
OSAIC HOLDINGS, INC.882$22.1K−$1.14KCut−$44K
NBC SECURITIES, INC.623$15.6K−$804Cut−$804
Federation des caisses Desjardins du Quebec570$14.3K−$729Cut−$729
NATIONAL BANK OF CANADA /FI/554$13.9K−$697Cut−$472
UMB Bank, n.a.466$11.7K−$601Cut−$601
JONES FINANCIAL COMPANIES LLLP465$11.2K−$43Added$10.7K
US BANCORP \DE\352$8.81K−$370Added$1.26K
Parallel Advisors, LLC352$8.81K−$425Added$151
HUNTINGTON NATIONAL BANK343$8.59K−$442Cut−$995
Sterling Capital Management LLC324$8.11K−$418Cut−$602
HRT FINANCIAL LP237.9K$5.96K−$156Added$2.77K
EverSource Wealth Advisors, LLC218$5.46K−$236Added$665
Caitong International Asset Management Co., Ltd216$5.41K−$278Cut−$31.4K
Allworth Financial LP109$2.73K−$141Cut−$1.11K
IFP Advisors, Inc96$2.4K−$124Cut−$124
HighMark Wealth Management LLC80$2K−$103Cut−$4.05K
ROTHSCHILD INVESTMENT LLC80$2K−$72Added$529
Walleye Capital LLC78$1.95K−$101Cut−$357.9K
SIGNATUREFD, LLC77$1.93K−$54Added$822
FIFTH THIRD BANCORP67$1.68KNew
Kilter Group LLC66$1.65K−$85Cut−$85
Bare Financial Services, Inc64$1.6K−$82Cut−$82
Rockefeller Capital Management L.P.61$1.53KNew
Farther Finance Advisors, LLC57$1.48K−$22Cut−$5.87K
True Wealth Design, LLC58$1.45K−$75Cut−$75
Physician Wealth Advisors, Inc.51$1.28K−$65Cut−$65
North Growth Management Ltd.46K$1.14K−$68Cut−$43
Versant Capital Management, Inc45$1.13KNew
PRICE T ROWE ASSOCIATES INC /MD/35.5K$889−$37Added$131
Sunbelt Securities, Inc.27$676−$35Cut−$35
INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC25$649−$9Cut−$9
GSA CAPITAL PARTNERS LLP20.5K$514New
TWIN PEAKS WEALTH ADVISORS, LLC20$501New
Aster Capital Management (DIFC) Ltd42$500New
Jackson Creek Investment Advisors LLC18.7K$468New
CoreCap Advisors, LLC18$451−$23Cut−$23
Essential Partners LLC12$300−$16Cut−$16
Root Financial Partners, LLC12$300New
Smartleaf Asset Management LLC12$291−$27Cut−$27
Janney Montgomery Scott LLC11.5K$288−$14Cut−$3
SBI Securities Co., Ltd.11$275−$15Cut−$15
SG Americas Securities, LLC10.4K$261−$13Cut−$201
Cygnus Capital Advisors, LLC8.2K$205−$8Added$47
MAI Capital Management7$176−$6Added$44
Larson Financial Group LLC6$150−$8Cut−$8
Hughes Financial Services, LLC4$100New
DekaBank Deutsche Girozentrale3.84K$96$61Added$61
Covestor Ltd28$1$0Held

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.