As of September 29, 2026, ProMIS Neurosciences's top three insider holders are Management Ltd. Abg (TenPercentOwner, 943.09K shares), Eugene Williams (Chairman And Ceo, 12.40K shares), Max A. Milbury (Principal Accounting Officer, 8.41K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Management Ltd. Abg | TenPercentOwner | 0 | 943,090 | 943,090 | 94.8% | 05 Feb, 2026 |
| 2 | Eugene Williams | Chairman And Ceo | 12,502 | 0 | 12,502 | 1.3% | 06 Mar, 2026 |
| 3 | Max A. Milbury | Principal Accounting Officer | 8,409 | 0 | 8,409 | 0.8% | 05 Feb, 2026 |
| 4 | Johanne Kaplan | Chief Development Officer | 6,221 | 0 | 6,221 | 0.6% | 07 Aug, 2026 |
| 5 | Neil K Warma | Chief Executive Officer | 6,183 | 0 | 6,183 | 0.6% | 05 Feb, 2026 |
| 6 | Patrick D. Kirwin | Director | 0 | 4,653 | 4,653 | 0.5% | 23 Apr, 2026 |
| 7 | Neil Cashman | Chief Scientific Officer | 0 | 4,122 | 4,122 | 0.4% | 05 Feb, 2026 |
| 8 | Jeremy M. Sclar | TenPercentOwner | 0 | 4,018 | 4,018 | 0.4% | 08 Sep, 2025 |
| 9 | M. Sclar 2012 Irrevocable Family Trust Jeremy | TenPercentOwner | 2,474 | 0 | 2,474 | 0.2% | 30 Sep, 2025 |
| 10 | 19 Promis Title | TenPercentOwner | 1,624 | 0 | 1,624 | 0.2% | 29 Jul, 2025 |
| 11 | Michael S Gordon | TenPercentOwner | 0 | 1,624 | 1,624 | 0.2% | 29 Jul, 2025 |
| 12 | Madge K. Shafmaster | Director | 139 | 0 | 139 | 0.0% | 24 Sep, 2024 |
| 13 | Gail M Farfel | Chief Executive Officer | 37 | 0 | 37 | 0.0% | 25 Aug, 2023 |
| 14 | Gavin T. Malenfant | Chief Operating Officer | 2 | 0 | 2 | 0.0% | 25 Aug, 2023 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 05 Aug, 2026 | Johanne Kaplan | Chief Development Officer | Acquired P | 2,280 | $13.30 | $30.32K | 6,221 | Direct |
| 20 May, 2026 | William W Wyman | Director | Acquired A | 5,500 | $0.00 | $0 | 5,500 | Direct |
| 20 May, 2026 | Neil Cashman | Chief Scientific Officer | Acquired A | 50,000 | $0.00 | $0 | 50,000 | Direct |
| 20 May, 2026 | Josh Mandel-Brehm | Director | Acquired A | 5,500 | $0.00 | $0 | 5,500 | Direct |
| 20 May, 2026 | Max A. Milbury | Principal Accounting Officer | Acquired A | 18,167 | $0.00 | $0 | 18,167 | Direct |
| 20 May, 2026 | Slanix Paul Alex | Director | Acquired A | 5,500 | $0.00 | $0 | 5,500 | Direct |
| 20 May, 2026 | Johanne Kaplan | Chief Development Officer | Acquired A | 50,000 | $0.00 | $0 | 50,000 | Direct |
| 20 May, 2026 | Eugene Williams | Director | Acquired A | 5,500 | $0.00 | $0 | 5,500 | Direct |
| 20 May, 2026 | Neil K Warma | Chief Executive Officer | Acquired A | 160,000 | $0.00 | $0 | 160,000 | Direct |
| 20 May, 2026 | Madge K. Shafmaster | Director | Acquired A | 5,500 | $0.00 | $0 | 5,500 | Direct |
| 20 May, 2026 | Eugene Williams | Director | Acquired A | 11,000 | $0.00 | $0 | 11,000 | Direct |
| 20 May, 2026 | Madge K. Shafmaster | Director | Acquired A | 11,000 | $0.00 | $0 | 11,000 | Direct |
| 20 May, 2026 | Slanix Paul Alex | Director | Acquired A | 11,000 | $0.00 | $0 | 11,000 | Direct |
| 20 May, 2026 | Josh Mandel-Brehm | Director | Acquired A | 11,000 | $0.00 | $0 | 11,000 | Direct |
| 20 May, 2026 | William W Wyman | Director | Acquired A | 11,000 | $0.00 | $0 | 11,000 | Direct |
| 22 Apr, 2026 | Patrick D. Kirwin | Director | Acquired P | 4,000 | $11.33 | $45.32K | 4,653 | Indirect |
| 05 Mar, 2026 | Eugene Williams | Director | Acquired P | 2,000 | $24.40 | $48.80K | 12,397 | Direct |
| 02 Mar, 2026 | Eugene Williams | Director | Acquired P | 1,000 | $22.53 | $22.53K | 7,397 | Direct |
| 03 Mar, 2026 | Eugene Williams | Director | Acquired P | 1,000 | $21.89 | $21.89K | 8,397 | Direct |
| 04 Mar, 2026 | Eugene Williams | Director | Acquired P | 2,000 | $24.00 | $48.00K | 10,397 | Direct |