PMN · Insider Trading

ProMIS Neurosciences Inc. Common Shares (ON)

Every open-market purchase and sale reported by PMN officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
9
code P
Sales
1
code S
Reporting Insiders
11
current holders
PMN — Recent Form 4 Transactions (latest 2026-10-06)
FiledInsiderRole TypeSharesValue
2026-10-06 Ivana Rubino Chief Commercial Officer A +80,000 deriv. —
2026-08-07 Johanne Kaplan Chief Development Officer Buy +2,280 +$30.32K
2026-08-07 Johanne Kaplan Chief Development Officer Buy +2,280 +$30.32K
2026-05-22 Max A. Milbury Principal Accounting Officer A +18,167 deriv. —
2026-05-22 Neil K Warma Chief Executive Officer A +160,000 deriv. —
2026-05-22 Madge K. Shafmaster Director A +16,500 deriv. —
2026-05-22 Eugene Williams Director A +16,500 deriv. —
2026-05-22 Johanne Kaplan Chief Development Officer A +50,000 deriv. —
2026-05-22 William W Wyman Director A +16,500 deriv. —
2026-05-22 Josh Mandel-Brehm Director A +16,500 deriv. —
2026-05-22 Neil Cashman Chief Scientific Officer A +50,000 deriv. —
2026-05-22 Slanix Paul Alex Director A +16,500 deriv. —
2026-04-23 Patrick D. Kirwin Director Buy +4,000 +$45.32K
2026-03-06 Eugene Williams Director Buy +2,000 +$48.80K
2026-03-04 Eugene Williams Director Buy +4,000 +$92.42K
2026-02-23 Johanne Kaplan Chief Development Officer Buy +1,629 +$25.01K
2026-02-05 Max A. Milbury — A +6,595 +$80.00K
2026-02-05 Johanne Kaplan Chief Development Officer A +2,060 +$24.99K
2026-02-05 Patrick D. Kirwin Director A +3,050 +$37.00K
2026-02-05 Ally Bridge Group (NY) LLC 10%+ Owner Buy +3,503,705 +$42.50M
2026-02-05 Neil Cashman Chief Scientific Officer A +4,122 +$50.00K
2026-02-05 Neil K Warma Chief Executive Officer A +6,183 +$75.00K
2025-10-24 Ally Bridge Group (NY) LLC 10%+ Owner A +200,000 deriv. —
2025-10-06 Max A. Milbury — Buy +30,392 +$14.93K
2025-09-30 Jeremy M. Sclar 2012 Irrevocable Family Trust 10%+ Owner X +2,093,022 —
2025-09-24 Johanne Kaplan Chief Development Officer A +165,000 deriv. —
2025-09-24 Max A. Milbury — A +60,000 deriv. —
2025-09-24 Neil Cashman Chief Scientific Officer A +165,000 deriv. —
2025-09-24 Neil K Warma Chief Executive Officer A +600,000 deriv. —
2025-09-24 Larry Douglas Altstiel Chief Medical Officer A +165,000 deriv. —
2025-09-08 Jeremy M. Sclar 10%+ Owner X +2,093,022 —
2025-08-14 19 Promis Title — X −359,400 deriv. —
2025-08-14 Michael S Gordon — X −359,400 deriv. —
2025-08-14 Michael S Gordon — J −48,333 —
2025-07-29 Michael S Gordon 10%+ Owner X +359,400 —
2025-07-29 19 Promis Title 10%+ Owner X +359,400 —
2025-07-02 Michael S Gordon 10%+ Owner Sell −93,223 —
2025-06-16 Eugene Williams Director A +20,000 deriv. —
2025-06-16 Patrick D. Kirwin Director A +20,000 deriv. —
2025-06-16 Josh Mandel-Brehm Director A +20,000 deriv. —
2025-06-16 Madge K. Shafmaster Director A +20,000 deriv. —
2025-06-16 William W Wyman Director A +20,000 deriv. —
2025-02-12 Neil Cashman Chief Scientific Officer Buy +15,000 +$14.60K
2024-11-20 Larry Douglas Altstiel Chief Medical Officer A +175,000 deriv. —
2024-11-20 Neil Cashman Chief Scientific Officer A +200,000 deriv. —
2024-11-20 Max A. Milbury Principal Accounting Officer A +70,000 deriv. —
2024-11-20 Johanne Kaplan Chief Development Officer A +175,000 deriv. —
2024-10-10 Neil K Warma Chief Executive Officer A +1,634,460 deriv. —
2024-10-07 Eugene Williams Director A +40,000 deriv. —
2024-10-07 Josh Mandel-Brehm Director A +40,000 deriv. —
PMN — Current Insider Holders
InsiderRole Shares HeldValue
Ally Bridge Group (NY) LLC 10%+ Owner 943,090 $7.60M
Jeremy M. Sclar 10%+ Owner 123,111 $992.27K
Jeremy M. Sclar 2012 Irrevocable Family Trust 10%+ Owner 92,604 $746.39K
19 Promis Title 10%+ Owner 87,817 $707.81K
Eugene Williams Director 12,397 $99.92K
Patrick D. Kirwin Director 9,788 $78.89K
Max A. Milbury Principal Accounting Officer 8,409 $67.78K
Johanne Kaplan Chief Development Officer 6,221 $50.14K
Neil K Warma Chief Executive Officer 6,183 $49.83K
Neil Cashman Chief Scientific Officer 5,196 $41.88K
Madge K. Shafmaster Director 2,733 $22.03K
PMN Insider Trading FAQ
Who are the insiders at PMN?
11 officers, directors and 10%+ beneficial owners currently report holdings in PMN via SEC Form 4.
Are PMN insiders buying or selling?
Across the 50 most recent Form 4 filings for PMN, 9 were open-market purchases (code P) and 1 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is PMN insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent PMN filing is dated 2026-10-06.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the PMN quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.