SEC Form 4
ProMIS Neurosciences Inc. Common Shares (ON) (PMN) insider trading
In the 12 months to Nov 4, 2026, 5 PMN insiders reported open-market purchases of $8.8M across 8 filings; no open-market sales were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $0
- 0 filings · 0 insiders
- Open-market purchases
- $8.8M
- 8 filings
Who traded PMN, and when
- Purchase
PMN daily close from Nov 4, 2025 to Nov 4, 2026, between $3.00 and $24.79, last $3.42. 0 sale and 8 purchase filings by 5 insiders, marked at their filing dates. Fan Yu, 10% owner: bought $8.5M across 1 filing, first filed Feb 5, 2026, last Feb 5, 2026. Eugene Williams, Director: bought $146.5K across 3 filings, first filed Mar 4, 2026, last Nov 3, 2026. Johanne Kaplan, Chief Development Officer: bought $55.3K across 2 filings, first filed Feb 23, 2026, last Aug 7, 2026. Patrick D. Kirwin, Director: bought $45.3K across 1 filing, first filed Apr 23, 2026, last Apr 23, 2026. Neil Cashman, Chief Scientific Officer: bought $38.6K across 1 filing, first filed Nov 3, 2026, last Nov 3, 2026.
Largest mark · tap a row for others
Fan Yu · 10% owner
Purchase $8,499,988
700,741 shares at $12.13 avg
Filed Feb 5, 2026 · traded Feb 3
Close on filing date $13.10
Fan Yu · 10% owner
10% owner
$8.5M boughtEugene Williams · Director
Director
$146.5K boughtJohanne Kaplan · Chief Development Officer
Chief Development Officer
$55.3K boughtPatrick D. Kirwin · Director
Director
$45.3K boughtNeil Cashman · Chief Scientific Officer
Chief Scientific Officer
$38.6K boughtOpen-market trades
8 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Fan Yu | 10% owner | — | $8.5M | 1 | — | |
| Eugene Williams | Director | — | $146.5K | 3 | — | |
| Johanne Kaplan | Chief Development Officer | — | $55.3K | 2 | — | |
| Patrick D. Kirwin | Director | — | $45.3K | 1 | — | |
| Neil Cashman | Chief Scientific Officer | — | $38.6K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Neil Cashman Chief Scientific Officer | Purchase | 10,000 | $3.86 | $38.6K | 14,532 | |
traded | Eugene Williams Director | Purchase | 1,316 | $3.99 | $5.3K | 13,713 | |
traded | Johanne Kaplan Chief Development Officer | Purchase | 2,280 | $13.30 | $30.3K | 6,221 | |
traded | Patrick D. Kirwin Director | Purchase | 4,000 | $11.33 | $45.3K | 4,653 | |
traded | Eugene Williams Director | Purchase | 2,000 | $24.40 | $48.8K | 12,397 | |
traded | Eugene Williams Director | Purchase | 4,000 | $23.11 | $92.4K | 10,397 | |
traded | Johanne Kaplan Chief Development Officer | Purchase | 1,629 | $15.35 | $25.0K | 3,941 | |
traded | Fan Yu 10% owner | Purchase | 700,741 | $12.13 | $8.5M | 943,090 |
GET /stocks/filings/vX/form-4?tickers=PMN&filing_date.gte=2025-11-04&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"PMN"
],
"issuer_cik": "0001374339",
"owner_cik": "0001927626",
"accession_number": "0001374339-26-000010",
"form_type": "4",
"filing_date": "2026-11-03",
"period_of_report": "2026-10-30",
"issuer_name": "ProMIS Neurosciences Inc.",
"issuer_trading_symbol": "PMN",
"owner_name": "Williams Eugene",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-10-30",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 1316,
"transaction_price_per_share": 3.99,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 13713,
"transaction_value": 5250.84,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
},
{
"tickers": [
"PMN"
],
"issuer_cik": "0001374339",
"owner_cik": "0001927064",
"accession_number": "0001374339-26-000009",
"form_type": "4",
"filing_date": "2026-11-03",
"period_of_report": "2026-11-02",
"issuer_name": "ProMIS Neurosciences Inc.",
"issuer_trading_symbol": "PMN",
"owner_name": "Cashman Neil",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Scientific Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-11-02",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 10000,
"transaction_price_per_share": 3.86,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 14532,
"transaction_value": 38600,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 5 records
- Grants and awards5 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
- Counted once
- When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.
Frequently asked questions
Has ProMIS Neurosciences Inc. Common Shares (ON)'s CEO sold stock?
No. Neil K. Warma (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is PMN’s insider data?
These are PMN Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for PMN every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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