AQR CAPITAL MANAGEMENT LLC - 31 Dec 2025 SCHEDULE 13G Report for MARKETAXESS HOLDINGS INC Common Stock, $0.003 par value (MKTX)

Filing Manager
AQR CAPITAL MANAGEMENT LLC
Reporting Manager
AQR Capital Management, LLC
Security
MARKETAXESS HOLDINGS INC Common Stock, $0.003 par value
Symbol
MKTX
Shares outstanding
37,181,642 shares
Disclosed Ownership
2,558,097 shares
Ownership
6.9%
Form type
SCHEDULE 13G
Filing time
13 Feb 2026, 09:17:06 UTC
Date of event
31 Dec 2025
SEC
View on sec.gov

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Quoteable Key Fact

"AQR CAPITAL MANAGEMENT LLC disclosed 6.9% ownership in MARKETAXESS HOLDINGS INC Common Stock, $0.003 par value (MKTX) on 31 Dec 2025."

Quick Takeaways

  • AQR CAPITAL MANAGEMENT LLC filed SCHEDULE 13G for MARKETAXESS HOLDINGS INC Common Stock, $0.003 par value (MKTX).
  • Disclosed ownership: 6.9%.
  • Date of event: 31 Dec 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 13 Feb 2026, 09:17.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
AQR Capital Management, LLC 6.9% 2,558,097 0 2,558,097 Henry Parkin Authorized Signatory
AQR Capital Management Holdings, LLC 6.9% 2,558,097 0 2,558,097 Henry Parkin Authorized Signatory

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