$4.08
+0.99%X4 Pharmaceuticals, Inc., a late-stage clinical biopharmaceutical company, focuses on the research, development, and commercialization of novel therapeutics for the treatment of rare diseases. Its lead product candidate is mavorixafor, a small molecule inhibitor of the chemokine receptor C-X-C chemokine receptor type 4 (CXCR4), which is in Phase III clinical trial for the treatment of patients with warts, hypogammaglobulinemia, infections, and myelokathexis syndrome; and Phase Ib clinical trial to treat chronic neutropenia and Waldenström macroglobulinemia. The company is also developing X4P-002, a CXCR4 antagonist for the treatment of brain cancers; and X4P-003, a CXCR4 antagonist for the treatment of CXCR4 disorders and primary immunodeficiencies. It has a license agreement with Abbisko Therapeutics Co., Ltd. to develop, manufacture, and commercialize mavorixafor in combination with checkpoint inhibitors or other agents in oncology indications. The company was founded in 2010 and is headquartered in Boston, Massachusetts.
Chief Financial Officer
Executive Chair
Founder
Founder
Founder & Member of Corporate Advisory Board
President & Chief Operating Officer
VP of Finance & Corporate Controller
During the last 12 months, insiders have purchased $250K and sold $73K worth of XFOR shares, resulting in $177K of net buying activity.
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Craig Adam R
Director, Officer: Executive Chairman
$250K
Kirske David
Officer: Chief Financial Officer
$73K
Strong bullish signal with $177K net buying. Insiders are aggressively accumulating shares, suggesting significant confidence in future prospects.
Exceptional buy/sell ratio. Buying dramatically outweighs selling—one of the strongest possible insider signals.
Heavy recent selling activity. Recent insider sales notably exceed purchases—may warrant investigation into company developments.
1 insider buyers and 1 sellers. Equal participation suggests mixed or neutral insider views.
XFOR - Filing history and reports
| Filing Type | Filing Date | Period Ending | Fiscal Year | Actions |
|---|---|---|---|---|
DEF 14A DEF 14A 2026 N/A | March 20, 2026 | March 20, 2026 | 2026 | |
DEF 14A DEF 14A 2025 N/A | April 25, 2025 | April 25, 2025 | 2025 | |
DEF 14A DEF 14A 2025 N/A | March 24, 2025 | March 24, 2025 | 2025 | |
DEF 14A DEF 14A 2024 N/A | April 29, 2024 | April 29, 2024 | 2024 | |
DEF 14A DEF 14A 2023 N/A | April 25, 2023 | April 25, 2023 | 2023 | |
DEF 14A DEF 14A 2022 N/A | August 11, 2022 | September 01, 2022 | 2022 | |
DEF 14A DEF 14A 2022 N/A | April 25, 2022 | June 06, 2022 | 2022 | |
DEF 14A DEF 14A 2020 N/A | April 20, 2021 | December 31, 2020 | 2020 | |
DEF 14A DEF 14A 2020 N/A | April 28, 2020 | June 10, 2020 | 2020 | |
DEF 14A DEF 14A 2019 N/A | May 22, 2019 | June 17, 2019 | 2019 |
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