13F Insight
DOSSIER · 13F Holders · Q2 2026

PROMIS NEUROSCIENCES INC

26 institutions still hold PROMIS NEUROSCIENCES INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74346M505·26 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$93M
visible holders
Holders
26
filers reporting
Concentration
18.25%
Jupiter Topco LLC #1
top holder share
AI Holders Summary · Q2 2026

26 institutions reported PROMIS NEUROSCIENCES INC in Q2 2026. Jupiter Topco LLC leads at 18.2% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Jupiter Topco LLC
CIK 0002146052
$17M1.3M0.01%Q2 202602
JANUS HENDERSON GROUP PLC
CIK 0001274173
$16M1.3M0.01%Q1 202603
Deep Track Capital, LP
CIK 0001856083
$11M836K0.16%Q2 202604
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$9M696K0.00%Q2 202605
Trails Edge Capital Partners, LP
CIK 0002077247
$7M557K1.16%Q2 202606
Woodline Partners LP
CIK 0001784547
$6M442K0.02%Q2 202607
Ally Bridge Group (NY) LLC
CIK 0001822947
$5M414K4.25%Q1 202608
SPHERA FUNDS MANAGEMENT LTD.
CIK 0001496201
$4M326K0.56%Q2 202609
Squadron Capital Management LLC
CIK 0002050709
$4M325K1.33%Q2 202610
Yu Fan
CIK 0001668029
$4M330K4.32%Q1 202611
AMERIPRISE FINANCIAL INC
CIK 0000820027
$2M186K0.00%Q2 202612
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$2M164K0.00%Q2 202613
ADAR1 Capital Management, LLC
CIK 0001940272
$1M93K0.06%Q2 202614
BOOTHBAY FUND MANAGEMENT, LLC
CIK 0001549230
$817K62K0.01%Q2 202615
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$738K56K0.00%Q2 202616
Ikarian Capital, LLC
CIK 0001778253
$699K55K0.06%Q1 202617
BANK OF MONTREAL /CAN/
CIK 0000927971
$150K11K0.00%Q2 202618
Seven Fleet Capital Management LP
CIK 0002092021
$139K11K0.02%Q2 202619
MORGAN STANLEY
CIK 0000895421
$99K8K0.00%Q2 202620
UBS Group AG
CIK 0001610520
$9K6910.00%Q2 2026
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