X4 Pharmaceuticals, Inc

Siren, L.L.C. XFOR

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/13/2026

Shares

1,500,000

Value ($000)

6,000

Weight

0.2%

2025 Q4 - 2025 Q4 (1 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/13/2026	6,000	0.2%	1,500,000	12/31/2025