BlackRock, Inc. - 31 Dec 2025 SCHEDULE 13G Report for MarketAxess Holdings Inc Common Stock (MKTX)

Filing Manager
BlackRock, Inc.
Reporting Manager
BlackRock, Inc.
Symbol
MKTX
Shares outstanding
37,178,232 shares
Disclosed Ownership
3,680,645 shares
Ownership
9.9%
Form type
SCHEDULE 13G
Filing time
21 Jan 2026, 12:30:31 UTC
Date of event
31 Dec 2025
Previous filing
17 Oct 2025
Next filing
06 Feb 2026

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
BlackRock, Inc. 9.9% 3,680,645 3,604,462 0 Spencer Fleming Managing Director