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X4 Pharmaceuticals, Inc (NASDAQ:XFOR)
US · Delayed Price · Currency is USD
Healthcare · Biotechnology
3.26+0.02 (+0.77%)
Insider Score
/ 100
XFOR Insider Score
X4 Pharmaceuticals, Inc has a live Insider Score.
Scored on 1 qualifying trade from 1 insider in the last 90 days.
XFOR Stock Insider Trading Activity
XFOR stock’s insider trading shows 1 purchase for an estimated $11.88K and 5 sales on the open market for an estimated $462.91K by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days1 qualifying buy1 insider$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Craig Adam R Director | Buy | 4,600 | $2.58 | $11.88K | 1.4% | 333,251 | Oct 16, 2026 | DDilution | Form 4 |
| KIRSKE DAVID CFO | Sell | 11,767 | $2.86 | $33.66K | 7.0% | 155,983 | Oct 1, 2026 | — | Form 4 |
| Craig Adam R Director | Sell | 47,436 | $4.44 | $210.83K | 12.6% | 328,651 | Aug 12, 2026 | — | Form 4 |
| Volpone John Other | Sell | 24,576 | $4.44 | $109.23K | 8.5% | 265,305 | Aug 12, 2026 | — | Form 4 |
| KIRSKE DAVID CFO | Sell | 8,543 | $4.26 | $36.43K | 4.8% | 167,750 | Jun 30, 2026 | — | Form 4 |
| KIRSKE DAVID CFO | Sell | 16,961 | $4.29 | $72.76K | 8.8% | 176,293 | May 12, 2026 | — | Form 4 |
| Craig Adam R Director | Buy | 86,206 | $2.90 | $250.00K | 29.7% | 376,087 | Oct 23, 2025 | BFirst BuyDilution | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Buy (P) — Open-market or private purchase
- Sell (S) — Open-market or private sale
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.