PRIMECAP MANAGEMENT CO/CA/ - 31 Dec 2025 SCHEDULE 13G/A Report for MarketAxess Holdings Inc. COM (MKTX)

Reporting Manager
PRIMECAP MANAGEMENT CO/CA/
Symbol
MKTX
Shares outstanding
37,182,963 shares
Disclosed Ownership
3,175,425 shares
Ownership
8.5%
Form type
SCHEDULE 13G/A
Filing time
11 Feb 2026, 12:56:00 UTC
Date of event
31 Dec 2025
Previous filing
13 Nov 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
PRIMECAP MANAGEMENT CO/CA/ 8.5% 3,175,425 3,162,095 0 Jorge A. Rodriguez Deputy Chief Compliance Officer