Ownership Summary
X4 Pharmaceuticals, Inc (NASDAQ:XFOR) has 3 institutional investors with active 13F positions as of December 2025.
- These investors collectively held 8.1% of X4 Pharmaceuticals's outstanding shares in December 2025, up from 5.8% in September 2025.
- They increased total shares held in XFOR by 39.89% quarter over quarter, and investors in X4 Pharmaceuticals decreased 96.67% from a year ago.
- Of these 3 holders, 2 added to their stakes in X4 Pharmaceuticals, 0 trimmed positions, and 1 made no changes.
- Altogether, these fund groups held 3.51Mn shares in XFOR by December 2025, up by 1.0Mn shares quarter on quarter, and down 112.89Mn shares year over year.
- NEA Management Company, LLC leads ownership in XFOR with 3.23Mn shares as of December 31, 2025, equal to 7.47% of outstanding shares.
- Leading sellers of X4 Pharmaceuticals shares for the quarter ending December 2025 were ACORN CAPITAL ADVISORS, LLC (39.31K).
- Business Quant data shows the 2 biggest positions in X4 Pharmaceuticals as of December 2025 are held by NEA Management Company, LLC (3.23Mn), ACORN CAPITAL ADVISORS, LLC (234.04K).