X4 Pharmaceuticals, Inc. · NASDAQ:XFOR

BVF PARTNERS L P/IL's stake in X4 Pharmaceuticals, Inc. fell to 3.90% (Schedule 13G/A)

Event Dec 31, 2025 · Filed Feb 17, 2026

BVF PARTNERS L P/IL's stake in X4 Pharmaceuticals, Inc. fell to 3.90%, 3,411,993 shares, as a passive investor on Dec 31, 2025. Filed Feb 17, 2026 (Schedule 13G/A).

Stake
3.90%
Shares
3,411,993
Intent
Passive
What changed
Fell below 5%
Filed together
10 holders

The filing in full

HolderStakeShares
BIOTECHNOLOGY VALUE FUND L P2.10%1,827,005
BVF I GP LLC2.10%1,827,005
BIOTECHNOLOGY VALUE FUND II LP1.50%1,339,509
BVF II GP LLC1.50%1,339,509
Biotechnology Value Trading Fund OS LP0.20%194,535
BVF Partners OS Ltd.0.20%194,535
BVF GP HOLDINGS LLC3.60%3,166,514
BVF PARTNERS L P/IL3.90%3,411,993
BVF INC/IL3.90%3,411,993
LAMPERT MARK N3.90%3,411,993

Source

View original at SEC

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