Promis NeurosciencesPMN
13F holders, Q3 2025 (September 30)23holders +4
8new positions
2sold out
1famous investor
$0.42avg. 13F price*
At the end of Q3 2025, 23 institutions reported holding Promis Neurosciences Inc. (PMN) in their 13F filings, up 4 from Q2 2025. 8 opened new positions and 2 sold out. The largest holders were Ally Bridge Group (NY) LLC ($2.6M), Armistice Capital, LLC ($1.3M) and Sphera Funds Management LTD. ($125K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Promis Neurosciences Inc.
- CUSIP
- 74346M406
- Latest filing quarter
- Q3 2025
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 8 | $71K |
| Exits | 2 | $1.3M |
All 13F filers, Q2 2025 → Q3 2025: 6,009,648 shares bought and 4,280,300 shares sold, net +1,729,348 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 23 holders
| Ally Bridge Group (NY) LLC | 2.22% | Add +367.1% | 6,233,497 | $2.6M |
| Armistice Capital, LLC | 0.04% | Add +39.1% | 2,974,518 | $1.3M |
| Sphera Funds Management LTD. | 0.03% | Reduce -84.5% | 295,187 | $125K |
| Citadel Advisors | 0.00% | Add +168.1% | 170,079 | $72K |
| XTX Topco Ltd | 0.00% | New | 67,687 | $29K |
| HRT Financial LP | 0.00% | New | 68,057 | $28K |
| Bank of Montreal | 0.00% | No change | 30,366 | $13K |
| Fiduciary Trust Co | 0.00% | No change | 28,583 | $12K |
| Howard Financial Services, LTD. | 0.00% | No change | 26,042 | $11K |
| Ieq Capital, LLC | 0.00% | No change | 26,042 | $11K |
| Two Sigma Investments, LP | 0.00% | New | 18,428 | $8K |
| Scotia Capital Inc. | 0.00% | No change | 12,122 | $5K |
| Claret Asset Management Corp | 0.00% | No change | 11,330 | $5K |
| Commonwealth Equity Services, LLC | 0.00% | No change | 11,447 | $5K |
| Osaic Holdings, Inc. | 0.00% | New | 9,000 | $5K |
| Royal Bank of Canada | 0.00% | No change | 5,487 | $2K |
| UBS Group AG | 0.00% | New | 2,506 | $1K |
| Bank of America Corp. | 0.00% | No change | 1,666 | $708 |
| TD Waterhouse Canada Inc. | 0.00% | Add +606.8% | 940 | $422 |
| North Star Investment Management Corp. | 0.00% | New | 500 | $212 |
| Federation des caisses Desjardins du Quebec | 0.00% | New | 254 | $106 |
| National Bank of Canada | 0.00% | No change | 88 | $37 |
| JPMorgan Chase & Co. | 0.00% | New | 68 | $29 |
"% of holder's portfolio" is PMN's weight in each manager's 13F, not the share of Promis Neurosciences Inc. the manager owns.