PMN
ProMIS Neurosciences Inc.Company with tickers: PMN
CIK
1374339
CUSIP
74346M505
Shares Outstanding
8,967,693
13F Activity (30d)
24 filings
24 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 25
Total Value: $78,019,038
Total Shares: 6,143,232
Institutional Ownership Trend
Holder Concentration
Across 25 13F filers · Δ vs Dec 31, 2025Top Holder
21.0%
−73.2 pts
Top 5
61.8%
−38.0 pts
Top 10
90.2%
−9.8 pts
HHI
1,061
Broadly held
−7,843
Quarterly Activity
vs Dec 31, 2025
New
18
Increased
3
Decreased
3
Sold Out
2
Unchanged
1
Holder count:
+16
Institutional value:
+4217.9%
Shares held:
+2222.2%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Small SPHERA FUNDS MANAGEMENT LTD. | +313,784 | 325,591 | |
| Small Ally Bridge Group (NY) LLC | +164,880 | 414,219 | |
| Mega ROYAL BANK OF CANADA | +50 | 268 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Large Federation des caisses Desjardins du Quebec | −320 | 10 | |
| Mega UBS Group AG | −150 | 1,300 | |
| Large TD Waterhouse Canada Inc. | −20 | 5 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega JANUS HENDERSON GROUP PLC | 1,292,757 | $16,418,013 | |
| Mid Deep Track Capital, LP | 835,655 | $10,612,818 | |
| Mega WELLINGTON MANAGEMENT GROUP LLP | 696,378 | $8,844,000 | |
| Small Trails Edge Capital Partners, LP | 557,103 | $7,075,208 | |
| Large Woodline Partners LP | 395,295 | $5,020,246 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Micro Disciplined Equity Management, Inc. | 1,000 | $6,830 | |
| Mid Tower Research Capital LLC (TRC) | 20 | $136 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mega JANUS HENDERSON GROUP PLC | $16,418,013 | 21.04% | 1,292,757 | Shares | Defined | 2026-05-18 | ||||
| Mid Deep Track Capital, LP | $10,612,818 | 13.60% | 835,655 | Shares | Sole | 2026-05-15 | ||||
| Mega WELLINGTON MANAGEMENT GROUP LLP | $8,844,000 | 11.34% | 696,378 | Shares | Defined | 2026-05-15 | ||||
| Small Trails Edge Capital Partners, LP | $7,075,208 | 9.07% | 557,103 | Shares | Sole | 2026-05-15 | ||||
| Small Ally Bridge Group (NY) LLC | $5,260,581 | 6.74% | 414,219 | Shares | Sole | 2026-05-18 | ||||
| Large Woodline Partners LP | $5,020,246 | 6.43% | 395,295 | Shares | Sole | 2026-05-15 | ||||
| Small GREAT POINT PARTNERS LLC | $4,716,805 | 6.05% | 371,402 | Shares | Defined | 2026-05-15 | ||||
| Micro Yu Fan | $4,187,952 | 5.37% | 329,760 | Shares | Sole | 2026-05-18 | ||||
| Small SPHERA FUNDS MANAGEMENT LTD. | $4,135,005 | 5.30% | 325,591 | Shares | Defined | 2026-05-15 | ||||
| Small Squadron Capital Management LLC | $4,127,207 | 5.29% | 324,977 | Shares | Sole | 2026-05-15 | ||||
| Large ADAGE CAPITAL PARTNERS GP, L.L.C. | $1,768,792 | 2.27% | 139,275 | Shares | Sole | 2026-05-15 | ||||
| Mid ADAR1 Capital Management, LLC | $1,210,945 | 1.55% | 95,350 | Shares | Sole | 2026-05-18 | ||||
| Mid 683 Capital Management, LLC | $1,179,195 | 1.51% | 92,850 | Shares | Defined | 2026-05-15 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $989,596 | 1.27% | 77,921 | Shares | Sole | 2026-05-15 | ||||
| Micro Empery Asset Management, LP | $766,483 | 0.98% | 60,353 | Shares | Sole | 2026-05-08 | ||||
| Mid Ikarian Capital, LLC | $698,500 | 0.90% | 55,000 | Shares | Sole | 2026-05-15 | ||||
| Small HEIGHTS CAPITAL MANAGEMENT, INC | $643,382 | 0.82% | 50,660 | Shares | Other | 2026-05-15 | ||||
| Mid BOOTHBAY FUND MANAGEMENT, LLC | $203,746 | 0.26% | 16,043 | Shares | Other | 2026-05-15 | ||||
| Small Seven Fleet Capital Management LP | $134,620 | 0.17% | 10,600 | Shares | Sole | 2026-05-15 | ||||
| Mega UBS Group AG | $16,509 | 0.02% | 1,300 | Shares | Defined | 2026-05-05 | ||||
| Large OSAIC HOLDINGS, INC. | $4,572 | 0.01% | 360 | Shares | Defined | 2026-05-15 | ||||
| Mega ROYAL BANK OF CANADA Bank | $3,403 | 0.00% | 268 | Shares | Defined | 2026-05-15 | ||||
| Large Steward Partners Investment Advisory, LLC | $1,270 | 0.00% | 100 | Shares | Sole | 2026-05-08 | ||||
| Large Federation des caisses Desjardins du Quebec | $127 | 0.00% | 10 | Shares | Defined | 2026-05-14 | ||||
| Large TD Waterhouse Canada Inc. | $63 | 0.00% | 5 | Shares | Defined | 2026-05-12 | ||||
| No holders match your search. | ||||||||||