Reporting Manager
BVF PARTNERS L P/IL
Symbol
FBRX
Shares outstanding
13.1M shares
Disclosed Ownership
65.4K shares
Ownership
0.5%
Form type
SCHEDULE 13G/A
Date filed
11/14/2025, 04:08 PM
Date of event
Sep 30, 2025
Previous filing
Feb 14, 2025

Reporting Managers (10)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
BIOTECHNOLOGY VALUE FUND L P 0.3% 33.3K 0 33.3K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF I GP LLC 0.3% 33.3K 0 33.3K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BIOTECHNOLOGY VALUE FUND II LP 0.2% 27.2K 0 27.2K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF II GP LLC 0.2% 27.2K 0 27.2K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
Biotechnology Value Trading Fund OS LP 0.03% 3.47K 0 3.47K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF Partners OS Ltd. 0.03% 3.47K 0 3.47K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF GP HOLDINGS LLC 0.5% 60.5K 0 60.5K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF PARTNERS L P/IL 0.5% 65.4K 0 65.4K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF INC/IL 0.5% 65.4K 0 65.4K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
LAMPERT MARK N 0.5% 65.4K 0 65.4K /s/ Mark N. Lampert Mark N. Lampert