DOSSIER · 13F Holders · Q2 2026
ASNSUSD

X4 PHARMACEUTICALS INC

1 institutions still hold X4 PHARMACEUTICALS INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 98420X103·1 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$15M
visible holders
Holders
1
filers reporting
Concentration
100.00%
NEA Management Company, LLC #1
top holder share
AI Holders Summary · Q2 2026

1 institutions reported ASNSUSD in Q2 2026. NEA Management Company, LLC leads at 100.0% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
NEA Management Company, LLC
CIK 0001512848
$15M3.2M0.95%Q2 2026