XFOR — X4 PHARMACEUTICALS INC

Ownership history in RENAISSANCE TECHNOLOGIES LLC  ·  2 quarters on record

This page tracks every 13F SEC filing in which RENAISSANCE TECHNOLOGIES LLC reported a position in X4 PHARMACEUTICALS INC (XFOR). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 ADDED 19,177 +1,811 +10.4% 0.00% $66K $3.42
2025 Q2 INITIATED 17,366 — — 0.00% $33K $1.90
% of Fund (quarterly)    XFOR price (monthly, adj. close)

Other funds also holding XFOR

As of 2025 Q4 — sorted by position size

Saturn V Capital Management LP 3Y 4.26% Rosalind Advisors, Inc. 3.66% Bain Capital Life Sciences Investors, LLC 3Y 7Y 2.44% Stonepine Capital Management, LLC 3Y 7Y 1.73% CAXTON CORP 3Y 7Y 1.45% Samsara BioCapital, LLC 3Y 7Y 0.81% STEMPOINT CAPITAL LP 0.62% PERCEPTIVE ADVISORS LLC 3Y 7Y 0.45% BRAIDWELL LP 3Y 0.43% Deep Track Capital, LP 3Y 0.36%
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