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. Show more

61 North Beacon Street, Boston, MA, 02134, United States

https://www.x4pharma.com

Biotechnology

Healthcare

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Market Cap

343.3M

52 Wk Range

$1.35 - $4.83

Previous Close

$3.64

Open

$3.65

Volume

271,658

Day Range

$3.58 - $3.85

Enterprise Value

186.9M

Cash

233.7M

Avg Qtr Burn

-19.6M

Insider Ownership

0.61%

Institutional Own.

99.59%

Qtr Updated

03/31/26

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Drug & Indication	Stage & Event	Catalyst Date
Mavorixafor (CXCR4 inhibitor) Details WHIM Syndrome	Approved Quarterly sales	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
Mavorixafor (CXCR4 inhibitor) Details Severe Congenital Neutropenia	Phase 3 Data readout	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
Mavorixafor (CXCR4 inhibitor) Details Chronic Neutropenia	Phase 3 Update	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
Mavorixafor (CXCR4 inhibitor) Details Renal cell carcinoma, Cancer	Failed Discontinued	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
Mavorixafor (CXCR4 inhibitor) + ibrutinib Details Waldenstrom macroglobulinemia	Failed Discontinued	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.