# 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.

Canonical: https://massive.com/quote/pmn/insider-trading
Latest filing: 2026-11-03 (last 12 months; source: SEC EDGAR)
Source: Massive (https://massive.com/docs/llms.txt)

## Summary

| Measure | Value | Detail |
| --- | --- | --- |
| Open-market sales | $0 | 0 filings · 0 insiders |
| Open-market purchases | $8.8M | 8 filings |

## Open-market trades by insider

| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
| --- | --- | --- | --- | --- | --- | --- |
| Fan Yu | 10% owner | — | $8.5M | 1 | — | 2026-02-05 |
| Eugene Williams | Director | — | $146.5K | 3 | — | 2026-11-03 |
| Johanne Kaplan | Chief Development Officer | — | $55.3K | 2 | — | 2026-08-07 |
| Patrick D. Kirwin | Director | — | $45.3K | 1 | — | 2026-04-23 |
| Neil Cashman | Chief Scientific Officer | — | $38.6K | 1 | — | 2026-11-03 |

## Open-market trades by filing

8 filings in the last 12 months, newest first.

| Filed | Traded | Insider | Role | Type | Shares | Avg price | Value | Held after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-11-03 | 2026-11-02 | Neil Cashman | Chief Scientific Officer | Purchase | 10,000 | $3.86 | $38.6K | 14,532 | — |
| 2026-11-03 | 2026-10-30 | Eugene Williams | Director | Purchase | 1,316 | $3.99 | $5.3K | 13,713 | — |
| 2026-08-07 | 2026-08-05 | Johanne Kaplan | Chief Development Officer | Purchase | 2,280 | $13.30 | $30.3K | 6,221 | — |
| 2026-04-23 | 2026-04-22 | Patrick D. Kirwin | Director | Purchase | 4,000 | $11.33 | $45.3K | 4,653 | — |
| 2026-03-06 | 2026-03-05 | Eugene Williams | Director | Purchase | 2,000 | $24.40 | $48.8K | 12,397 | — |
| 2026-03-04 | 2026-03-02 | Eugene Williams | Director | Purchase | 4,000 | $23.11 | $92.4K | 10,397 | — |
| 2026-02-23 | 2026-02-19 | Johanne Kaplan | Chief Development Officer | Purchase | 1,629 | $15.35 | $25.0K | 3,941 | — |
| 2026-02-05 | 2026-02-03 | Fan Yu | 10% owner | Purchase | 700,741 | $12.13 | $8.5M | 943,090 | — |

## Other insider activity (not market trades)

- Grants and awards: 5 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.

## FAQ

### 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.

## Live data

This page joins two Massive endpoints: Form 4 filings and daily prices. The PMN Form 4 request:

- `GET https://api.massive.com/stocks/filings/vX/form-4?tickers=PMN&filing_date.gte=2025-11-04&sort=filing_date.desc&limit=500`

Requests need a Massive API key. API reference for agents: https://massive.com/docs/llms.txt. Connect an AI agent through the Massive MCP server: https://massive.com/docs/ai-tools.

## Related

- [ProMIS Neurosciences Inc. Common Shares (ON) (PMN) stock price](https://massive.com/quote/pmn.md)
- [Recent insider trading](https://massive.com/quote/insider-trading.md)
- [Markets overview](https://massive.com/quote/index.md)

Nothing here is investment advice. Data and content are provided for informational purposes under the Massive Terms of Service: https://massive.com/terms