Form4.ai tracks every SEC insider trade in real time. See every XFOR insider filing with a free account — no card.
See every XFOR insider filing — free account, no card.
Free accountX4 Pharmaceuticals, Inc (XFOR) has 4 SEC Form 4 insider filings on record in the last 90 days. That includes 1 insider purchase totalling $12K, and 3 sales totalling $354K. Most recent filing: Oct. 19, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 19, 2026 SEC filing | Craig Adam R Executive Chairman | Bought | $11,884 | +25.4% 7D |
| Oct 5, 2026 SEC filing | KIRSKE DAVID Chief Financial Officer | Sold | $33,658 | — |
| Aug 13, 2026 SEC filing | Volpone John President | Sold | $109,228 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.