FMR LLC - 31 Oct 2025 SCHEDULE 13G/A Report for CYTOMX THERAPEUTICS INC COMMON STOCK (CTMX)

Filing Manager
FMR LLC
Reporting Manager
FMR LLC
Symbol
CTMX
Shares outstanding
165M shares
Disclosed Ownership
20.5M shares
Ownership
12.4%
Form type
SCHEDULE 13G/A
Filing time
07 Nov 2025, 11:13:45 UTC
Date of event
31 Oct 2025
Previous filing
05 Nov 2025

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
FMR LLC 12.4% 20.5M 20.5M 0 Stephanie J. Brown Duly authorized under Power of Attorney effective as of January 3, 2023, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Abigail P. Johnson 12.4% 20.5M 0 0 Stephanie J. Brown Duly authorized under Power of Attorney effective as of January 26, 2023, by and on behalf of Abigail P. Johnson**