X4 Pharmaceuticals (XFOR) stock: insider trades, news & valuation
Net buyingShare price and insider trades
X4 Pharmaceuticals insider trading at a glance (Oct 9, 2026): in the past 12 months, 1 insider bought $250K and 3 sold $463K of XFOR stock on the open market.
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XFOR insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | $34K | 1 |
| Q3 2026 | — | 0 | $320K | 2 |
| Q2 2026 | — | 0 | $109K | 2 |
| Q1 2026 | — | 0 | — | 0 |
| Q4 2025 | $250K | 1 | — | 0 |
Valuation, profit and volume
Summary
Over the past 12 months, 1 X4 Pharmaceuticals, Inc insider reported open-market purchases totaling $250K, while 3 insiders reported sales totaling $463K. 0 of 5 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Oct 5SEC | David KirskeCFO | Sell | 11,767155,983 held (−7%) | $2.86 | $34K | +1.7% | — |
| Aug 13SEC | Adam R CraigChair | Sell | 47,436328,651 held (−13%) | $4.44 | $211K | -34.5% | — |
| Aug 13SEC | John VolponePresident | Sell | 24,576265,305 held (−8%) | $4.44 | $109K | -34.5% | — |
| Jul 1SEC | David KirskeCFO | Sell | 8,543167,750 held (−5%) | $4.26 | $36K | -31.7% | — |
| May 13SEC | David KirskeCFO | Sell | 16,961176,293 held (−9%) | $4.29 | $73K | -32.2% | — |
| Oct 27SEC | Adam R CraigChair | Buy | 86,206376,087 held (+30%) | $2.90 | $250K | +0.3% | — |
Insiders at X4 Pharmaceuticals, Inc
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Adam R CraigChair | $250K | $211K | Aug 13, 2026 | — |
| David KirskeCFO | — | $143K | Oct 5, 2026 | — |
| John VolponePresident | — | $109K | Aug 13, 2026 | — |
XFOR stock: common questions
Are X4 Pharmaceuticals, Inc insiders buying XFOR stock?
In the past 12 months, 1 insiders reported open-market purchases of XFOR worth $250K. The latest was Chair Adam R Craig bought $250K of XFOR at $2.90 — first open-market purchase in our records; raises the stake by 30%.
Are X4 Pharmaceuticals, Inc insiders selling XFOR stock?
3 insiders reported sales worth $463K over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is XFOR's 52-week range?
Over the past year XFOR has traded between $2.77 and $4.67. It last closed at $2.91 on Oct 9, 2026.