Promis NeurosciencesPMN

13F holders, Q1 2026 (March 31)

25holders +16

18new positions

2sold out

1famous investor

$12.70avg. 13F price*

At the end of Q1 2026, 25 institutions reported holding Promis Neurosciences Inc. (PMN) in their 13F filings, up 16 from Q4 2025. 18 opened new positions and 2 sold out. The largest holders were Janus Henderson Group PLC ($16.4M), Deep Track Capital, LP ($10.6M) and Wellington Management Group LLP ($8.8M). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).

Company: Promis Neurosciences Inc.
CUSIP: 74346M505
Latest filing quarter: Q2 2026

History

Number of 13F holders

Total Exit/New Position Q4 2025 → Q1 2026

	Institutions	Total Value
New Positions	18	$68.6M
Exits	2	$577

All 13F filers, Q4 2025 → Q1 2026: 5,880,193 shares bought and 1,510 shares sold, net +5,878,683 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 25 holders


Janus Henderson Group PLC	0.01%	New	1,292,757	$16.4M
Deep Track Capital, LP	0.22%	New	835,655	$10.6M
Wellington Management Group LLP	0.00%	New	696,378	$8.8M
Trails Edge Capital Partners, LP	1.67%	New	557,103	$7.1M
Ally Bridge Group (NY) LLC	5.23%	Add +66.1%	414,219	$5.3M
Woodline Partners LP	0.02%	New	395,295	$5.0M
Great Point Partners LLC	1.16%	New	371,402	$4.7M
Yu Fan	4.32%	New	329,760	$4.2M
Sphera Funds Management LTD.	0.71%	Add +2657.6%	325,591	$4.1M
Squadron Capital Management LLC	1.65%	New	324,977	$4.1M
Adage Capital Partners Gp, L.L.C.	0.00%	New	139,275	$1.8M
ADAR1 Capital Management, LLC	0.07%	New	95,350	$1.2M
683 Capital Management, LLC	0.12%	New	92,850	$1.2M
Millennium Management	0.00%	New	77,921	$990K
Empery Asset Management, LP	0.93%	New	60,353	$766K
Ikarian Capital, LLC	0.10%	New	55,000	$699K
Heights Capital Management, Inc.	0.18%	New	50,660	$643K
Boothbay Fund Management, LLC	0.00%	New	16,043	$204K
Seven Fleet Capital Management LP	0.04%	New	10,600	$135K
UBS Group AG	0.00%	Reduce -10.3%	1,300	$17K
Osaic Holdings, Inc.	0.00%	No change	360	$5K
Royal Bank of Canada	0.00%	Add +22.9%	268	$4K
Steward Partners Investment Advisory, LLC	0.00%	New	100	$1K
Federation des caisses Desjardins du Quebec	0.00%	Reduce -97.0%	10	$127
TD Waterhouse Canada Inc.	0.00%	Reduce -80.0%	5	$65

"% of holder's portfolio" is PMN's weight in each manager's 13F, not the share of Promis Neurosciences Inc. the manager owns.