David Kirske sold $73k of XFOR
Chief Financial Officer at X4 Pharmaceuticals, Inc. 16,961 shares at an average of $4.29, traded May 12, 2026, filed May 13, 2026.
Score components
- +22RoleCFO
- +8Trade size$73k at market
- 0Share of holdings soldSold 8.8% of holdings
- 0ClusterNo other insider selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001501697-26-000049, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 12, 2026 | SOpen-market sale Common Stock | -16,961 | $4.29 | $73k | 176,293 | May 13, 2026 |
Related signals
Other insiders at X4 Pharmaceuticals, Inc and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 28Weak | XFORsell X4 Pharmaceuticals, Inc | David Kirske Chief Financial Officer | $34k 11,767 shares | -7% | |
| 45Moderate | X4 Pharmaceuticals, Inc | Adam R Craig Executive Chairman | $211k 47,436 shares | -13% | |
| 38Weak | X4 Pharmaceuticals, Inc | John Volpone President | $109k 24,576 shares | -8% | |
| 28Weak | XFORsell X4 Pharmaceuticals, Inc | David Kirske Chief Financial Officer | $36k 8,543 shares | -5% | |
| 47Moderate | XFORbuy X4 Pharmaceuticals, Inc | Adam R Craig Executive Chairman | $250k 86,206 shares | +30% | |
| 33Weak | XFORbuy X4 Pharmaceuticals, Inc | Mark Baldry Chief Commercial Officer | $2,561 1,032 shares | +4% | |
| 21Weak | XFORbuy X4 Pharmaceuticals, Inc | Mark Baldry Chief Commercial Officer | $19k 35,050 shares | +37% | |
| 20Weak | X4 Pharmaceuticals, Inc | Christophe Arbet-Engels Chief Medical Officer | $5,284 11,624 shares | -45% | |
| 15Weak | X4 Pharmaceuticals, Inc | Mark Baldry Chief Commercial Officer | $13k 29,159 shares | -24% | |
| 15Weak | X4 Pharmaceuticals, Inc | Mary DiBiase Chief Operating Officer | $10k 22,258 shares | -4% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.