ProMIS Neurosciences Inc.
Ownership
Ownership Structure
Who owns ProMIS Neurosciences Inc. (PMN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 48.5% of the shares are freely tradable; institutional investors hold 74.4%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Jupiter Topco LLC | 14.42 | 1,292,757 | +0.0 | 06/30/2026 |
| Deep Track Capital, LP | 9.32 | 835,655 | +0.0 | 06/30/2026 |
| Wellington Management Company LLP | 7.77 | 696,378 | +0.0 | 06/30/2026 |
| Ally Bridge Group (NY) LLC | 6.92 | 620,319 | +49.8 | 06/30/2026 |
| Trails Edge Capital Partners, LP | 6.21 | 557,103 | +0.0 | 06/30/2026 |
| Woodline Partners LP | 4.93 | 441,911 | +11.8 | 06/30/2026 |
| Yu Fan | 3.68 | 329,760 | +0.0 | 06/30/2026 |
| Sphera Funds Management Ltd. | 3.63 | 325,591 | +0.0 | 06/30/2026 |
| Squadron Capital Management LLC | 3.62 | 324,977 | +0.0 | 06/30/2026 |
| Ikarian Capital, LLC | 2.29 | 205,000 | +272.7 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Williams Eugene | Director | 40,213 | 132,703 $ | Nov 4, 2026 | direct |
| Cashman Neil | Chief Scientific Officer | 14,532 | 47,956 $ | Nov 2, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Nov 4, 2026 | Williams Eugene | Director | Buy | 26,500 | 3.43 | 90,895 |
| Nov 2, 2026 | Cashman Neil | Chief Scientific Officer | Buy | 10,000 | 3.86 | 38,600 |
| Oct 30, 2026 | Williams Eugene | Director | Buy | 1,316 | 3.99 | 5,251 |
| Apr 22, 2026 | Patrick D Kirwin | Director | Buy | 4,000 | 11.33 | 45,320 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 13, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.