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MILLENNIUM MANAGEMENT LLC

Position in XFOR — X4 Pharmaceuticals, Inc

CIK 1273087 NEW YORK, NY

Position in XFOR

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$4,999,422
+$4,775,510 QoQ
Shares Held
1,210,514
+2062.5% QoQ
Ownership
1.28%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2025
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in XFOR Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

MILLENNIUM MANAGEMENT LLC holds $4,468,729,571 across 342 Biotechnology names. XFOR ranks #169 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in XFOR

Export CSV
4 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $4,999,422 1,210,514
2025-12-31 $223,912 55,978
2025-09-30 $221,598 64,795
2025-06-30 $148,315 78,061