13F

Stock

ProMIS Neurosciences Inc.

PMN · held by 25 managers

Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025

Reported value

$78M

Holders

25

+18 new · −2 exited

Holders’ est. mark

$1.55M

Price effect on 7 books still in the name

Largest holder

$16.4M

JANUS HENDERSON GROUP PLC

Holder count by quarter

Q3 2025Q4 2025Q1 2026

Who holds it

Notable only
InvestorSharesValueEst. markChange
JANUS HENDERSON GROUP PLC1.29M$16.4M—New
Deep Track Capital, LP835.7K$10.6M—New
WELLINGTON MANAGEMENT GROUP LLP696.4K$8.84M—New
Trails Edge Capital Partners, LP557.1K$7.08M—New
Ally Bridge Group (NY) LLC414.2K$5.26M$1.46MAdded$3.56M
Woodline Partners LP395.3K$5.02M—New
GREAT POINT PARTNERS LLC371.4K$4.72M—New
Yu Fan329.8K$4.19M—New
SPHERA FUNDS MANAGEMENT LTD.325.6K$4.14M$69.4KAdded$4.05M
Squadron Capital Management LLC325K$4.13M—New
ADAGE CAPITAL PARTNERS GP, L.L.C.139.3K$1.77M—New
ADAR1 Capital Management, LLC95.3K$1.21M—New
683 Capital Management, LLC92.8K$1.18M—New
MILLENNIUM MANAGEMENT LLC77.9K$989.6K—New
Empery Asset Management, LP60.4K$766.5K—New
Ikarian Capital, LLC55K$698.5K—New
HEIGHTS CAPITAL MANAGEMENT, INC50.7K$643.4K—New
BOOTHBAY FUND MANAGEMENT, LLC16K$203.7K—New
Seven Fleet Capital Management LP10.6K$134.6K—New
UBS Group AG1.3K$16.5K$7.64KAdded$6.61K
OSAIC HOLDINGS, INC.360$4.57K$2.1KAdded$2.1K
ROYAL BANK OF CANADA268$4K$2.25KAdded$3K
Steward Partners Investment Advisory, LLC100$1.27K—New
Federation des caisses Desjardins du Quebec10$127$59Cut−$2.13K
TD Waterhouse Canada Inc.5$65$31Cut−$105

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.