X4 Pharmaceuticals, Inc number of employees

X4 Pharmaceuticals, Inc reported 45 employees at December 31, 2025 in its latest annual report. Revenue per employee was $780,289.

Headcount by year

Fiscal year end	Employees	Change	Revenue per employee	Source
December 31, 2025	45	—	$780,289	10-K, filed March 17, 2026

What the annual reports say

Human Capital Policies and Procedures As of December 31, 2025, we had 45 full-time employees. 2025 annual report

Headcount as the company states it in Item 1 of its annual report (some count full-time equivalents or exclude part-time and temporary staff), at the date it gives. Years where the report states no clear total are left out rather than estimated. Changes can reflect acquisitions and disposals as well as hiring and job cuts.

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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.