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Active cluster sell — 3 distinct insiders, $356.5K, window ends Aug 12, 2026.
Figures computed from official regulatory filings — .
Analysttarget 11.6 USD (+310%) · consensus 5/5 · 5 buy · 0 hold · 0 sell
Ownershipinsiders 0.44% · institutions 103.81% · short 8.3% of float
In USD · as of Oct 5, 2026
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Data for X4 Pharmaceuticals, Inc only. No web search. Global per-insider statistics are excluded.
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X4 Pharmaceuticals, Inc., a biopharmaceutical company, focuses on the research, development, and commercialization of novel therapeutics for the treatment of rare diseases of the immune system. It offers XOLREMDI, an orally small-molecule selective antagonist of chemokine receptor CXCR4, which is in phase 3 clinical trial for the treatment of patients with warts, hypogammaglobulinemia, infections, and myelokathexis syndrome. It has a license agreement with Abbisko Therapeutics Co Ltd. to manufacture and distribute XOLREMDI in mainland China, Taiwan, Hong Kong and Macau; Norgine to develop, manufacture, and commercialize mavorixafor in Europe, Australia, and New Zealand; and Genzyme Corporation for CXCR4 receptor to develop and commercialize products containing licensed compounds for all therapeutic, prophylactic and diagnostic uses. The company is headquartered in Boston, Massachusetts.
Market information source · Oct 5, 2026
Periods recorded in the consulted sources. These do not certify the legal dates of name changes.
SEC company identity · Oct 5, 2026
Open-market timeline · full history
4 buys104 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| KIRSKE DAVID | Sell | $33.7K | SEC | ||
| Volpone John |
| Sell |
| $109.2K |
| SEC |
| Craig Adam Rtrack record | Sell | $210.8K | SEC |
| KIRSKE DAVID | Sell | $36.4K | SEC |
| Gold Kelly | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KIRSKE DAVID | Sell | $72.8K | SEC |
| Bridger Gary | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| de Craecker Francoise | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| WYZGA MICHAEL S | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Stewart Murray | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Volpone John | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KIRSKE DAVID | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Craig Adam Rtrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Craig Adam Rtrack record | Buy | $250K | conv 65Unusual sizeFirst in 12mo | SEC |
| Craig Adam Rtrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KIRSKE DAVID | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KIRSKE DAVID | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Craig Adam Rtrack record | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KIRSKE DAVID | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Volpone John | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Volpone John | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Craig Adam Rtrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Volpone John | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Thoren Natasha Fay | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Woods Keith | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |