Perceptive Advisors Llc - Oct 27, 2025 SCHEDULE 13G Report for X4 PHARMACEUTICALS, INC. Common Stock, par value $0.001 per share (XFOR)

Filing Manager
Perceptive Advisors Llc
Reporting Manager
Perceptive Advisors LLC
Security
X4 PHARMACEUTICALS, INC. Common Stock, par value $0.001 per share
Symbol
XFOR
Shares outstanding
79.8M shares
Disclosed Ownership
6.06M shares
Ownership
7.6%
Form type
SCHEDULE 13G
Date filed
11/3/2025, 04:09 PM
Date of event
Oct 27, 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Perceptive Advisors LLC 7.6% 6.06M 0 6.06M /s/ Joseph Edelman Joseph Edelman, Managing Member
Joseph Edelman 7.6% 6.06M 0 6.06M /s/ Joseph Edelman Joseph Edelman
Perceptive Life Sciences Master Fund, Ltd. 7.6% 6.06M 0 6.06M /s/ Joseph Edelman Joseph Edelman, Managing Member