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X4 Pharmaceuticals, Inc revenue

X4 Pharmaceuticals, Inc's revenue was $35.1m in fiscal 2025, up 1250.5% on the year before. Since fiscal 2020 ($3.0m) it has grown at a compound 63.6% a year. Over the last twelve months it was $15.4m.

Revenue history

US$ millions unless shown otherwise. Fiscal years, plus the last twelve months (LTM) when newer.

X4 Pharmaceuticals, Inc: revenue history, annual
Fiscal year2018Dec 20182019Dec 20192020Dec 20202021Dec 20212022Dec 20222023Dec 20232024Dec 20242025Dec 2025LTMJun 2026
Revenue00300033515
Growth on the year before———−100.0%———+>999%—
Gross profit————0022913
Gross margin——————69.3%83.6%81.0%

Revenue as reported in the company's 10-K and 10-Q filings (for banks, net interest income plus non-interest income). Growth is left blank when the earlier figure was zero or negative.

Where the revenue comes from

Fiscal year to December 31, 2025
Products and services
Line of business Revenue Share YoY
License and Other Revenue $28.6M 81.4% —
Products $6.5M 18.6% ▲ 155.1%

From X4 Pharmaceuticals, Inc's 10-K filed March 17, 2026, as tagged in the filing. View filing. Indented rows are part of the line above; their share is of that line. In the bars, the faint bar behind is the year before.

Revenue against peers

Biotechnology: the closest covered companies by revenue. Last twelve months.

CompanyRevenueGrowth3-year growth a year
X4 Pharmaceuticals, Inc $15.4m -52.6% —
Keros Therapeutics, Inc. $14.9m -93.6% —
Alector, Inc. $13.9m -82.9% -48.6%
Proqr Therapeutics N.V. $18.0m -12.1% —
Lineage Cell Therapeutics, Inc. $13.1m 19.9% 7.5%
Cytomx Therapeutics, Inc. $18.3m -87.0% -38.7%

Compare with peers

Head to head: KROS vs XFORALEC vs XFORPRQR vs XFOR

More: Biotechnology stocks compared, Health Care sector, rankings of US companies

Figures from X4 Pharmaceuticals, Inc's SEC filings (10-K and 10-Q), retrieved October 29, 2026. How we read and check them: methodology and data sources. Not investment advice. Back to X4 Pharmaceuticals, Inc.