Biotechnology Value Fund L P - Oct 9, 2025 SCHEDULE 13G Report for Xencor Inc Common Stock, par value $0.01 per share (XNCR)

Filing Manager
Biotechnology Value Fund L P
Reporting Manager
BVF PARTNERS L P/IL
Security
Xencor Inc Common Stock, par value $0.01 per share
Symbol
XNCR
Shares outstanding
71.1M shares
Disclosed Ownership
4.62M shares
Ownership
6.5%
Form type
SCHEDULE 13G
Date filed
10/17/2025, 04:56 PM
Date of event
Oct 9, 2025
SEC
View on sec.gov

Reporting Managers (10)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
BIOTECHNOLOGY VALUE FUND L P 3.5% 2.47M 0 2.47M /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF I GP LLC 3.5% 2.47M 0 2.47M /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BIOTECHNOLOGY VALUE FUND II LP 2.5% 1.79M 0 1.79M /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF II GP LLC 2.5% 1.79M 0 1.79M /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
Biotechnology Value Trading Fund OS LP 0.4% 287K 0 287K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF Partners OS Ltd. 0.4% 287K 0 287K /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF GP HOLDINGS LLC 6% 4.26M 0 4.26M /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF PARTNERS L P/IL 6.5% 4.62M 0 4.62M /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
BVF INC/IL 6.5% 4.62M 0 4.62M /s/ Mark N. Lampert Mark N. Lampert, Authorized Signatory
LAMPERT MARK N 6.5% 4.62M 0 4.62M /s/ Mark N. Lampert Mark N. Lampert