PROMIS NEUROSCIENCES INC PMN
COM NEW · Common Stock · CUSIP 74346M406
- SectorHealth care
- IndustryPharmaceutical Preparations
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable.
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 14 |
| Q4 2022 | 14 |
| Q1 2023 | 13 |
| Q2 2023 | 14 |
| Q3 2023 | 15 |
| Q4 2023 | 16 |
| Q1 2024 | 17 |
| Q2 2024 | 17 |
| Q3 2024 | 19 |
| Q4 2024 | 19 |
| Q1 2025 | 18 |
| Q2 2025 | 20 |
| Q3 2025 | 23 |
| Q4 2025 | 0 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 5 | 7 |
| Q2 2024 | 2 | 5 |
| Q3 2024 | 9 | 4 |
| Q4 2024 | 2 | 7 |
| Q1 2025 | 4 | 7 |
| Q2 2025 | 8 | 8 |
| Q3 2025 | 12 | 5 |
| Q4 2025 | 0 | 23 |
Biggest buyers
| None |
Biggest sellers
| Ally Bridge Group (NY) LLC | Sold out | -6.2m |
| ARMISTICE CAPITAL, LLC | Sold out | -3.0m |
| SPHERA FUNDS MANAGEMENT LTD. | Sold out | -295.2k |
| CITADEL ADVISORS LLC | Sold out | -170.1k |
| HRT FINANCIAL LP | Sold out | -68.1k |
| XTX Topco Ltd | Sold out | -67.7k |
| BANK OF MONTREAL /CAN/ | Sold out | -30.4k |
| Fiduciary Trust Co | Sold out | -28.6k |
| HOWARD FINANCIAL SERVICES, LTD. | Sold out | -26.0k |
| IEQ CAPITAL, LLC | Sold out | -26.0k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Sclar Jeremy M. 13G · passive investor filed 2025-10-15 | 16.9% |
ABG Management Ltd.
13D · may seek influence
no change · filed 2026-02-02
Stated purposeItem 4 is amended and supplemented by the following. JANUARY 2026 SECURITIES PURCHASE AGREEMENT On January 29, 2026, Ally Bridge MedAlpha Master Fund L.P., ABG V-SIV IX Limited and ABG V-SIV X Limited (together, the "Ally Bridge Purchasers"), together with certain other investors, entered into a Securities Purchase Agreement (the "Securities Purchase Agreement") with the Issuer, pursuant to which the Issuer agreed to sell approximately $75 million in securities (the "Offering"). Pursuant to the terms of the Securities Purchase Agreement, the Ally Bridge Purchasers agreed to purchase from the Issuer an aggregate of (i) 700,741 common shares, no par value (the "Common Shares") and (ii) Common Share purchase warrants (the "Common Share Warrants") to purchase 700,741 Common Shares (the "Com… Full filing |
11.3% |
| Shaf QIC LLC 13G · passive investor filed 2025-07-31 | 10.0% |
| GREAT POINT PARTNERS LLC 13G · passive investor no change · filed 2025-11-14 | 10.0% |
| SPHERA FUNDS MANAGEMENT LTD. 13G · passive investor +2.3 pts · filed 2026-02-05 | 7.8% |
Fell to 5% or below in the last year: GORDON MICHAEL S (2.0%, 2026-05-07), ARMISTICE CAPITAL, LLC (0.9%, 2026-02-17)
Insider purchases and sales in Q4 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 2 | $268.1k | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 1 | $14.6k | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-10-03 | Milbury Max A. Principal Accounting Officer | Bought | —30.4k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2025
| Manager | Shares | Change |
|---|