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X4 Pharmaceuticals, Inc

Biotechnology company · Boston, Massachusetts, United States · Nasdaq: XFOR

X4 Pharmaceuticals, Inc is a biotechnology company headquartered in Boston, Massachusetts, United States. Its earliest recorded incorporation is in 2010. Its shares trade on Nasdaq under the ticker XFOR. It has reported private securities offerings to the US SEC, most recently $85 million sold in a notice filed in 2025.

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X4 Pharmaceuticals at a glance

Typebiotechnology company
HeadquartersBoston, Massachusetts, United States
Earliest incorporation on record2010
Stock listingNasdaq: XFOR
SEC industryBiological Products, (No Diagnostic Substances)
SEC CIK1501697

What does X4 Pharmaceuticals do?

Private fundraising reported to the SEC

12 Form D notices; the most recent reported $85 million sold (2025).

Frequently asked questions about X4 Pharmaceuticals

Where is X4 Pharmaceuticals headquartered?

X4 Pharmaceuticals, Inc is headquartered in Boston, Massachusetts, United States.

What does X4 Pharmaceuticals do?

X4 Pharmaceuticals, Inc is a biotechnology company. Its SEC industry classification is Biological Products, (No Diagnostic Substances).

Is X4 Pharmaceuticals a public company?

Yes. X4 Pharmaceuticals, Inc trades on Nasdaq under the ticker XFOR.

When was X4 Pharmaceuticals founded?

The earliest incorporation on record for X4 Pharmaceuticals, Inc is in 2010, according to public company registers.

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Last updated 2026-09-25. Data licences