Quick Takeaways
- BlackRock, Inc. filed SCHEDULE 13G/A for MarketAxess Holdings Inc Common Stock (MKTX).
- Disclosed ownership: 4.2%.
- Date of event: 30 Sep 2025.
BlackRock, Inc. - 30 Sep 2025 SCHEDULE 13G/A Report for MarketAxess Holdings Inc Common Stock (MKTX)
- Filing Manager
- BlackRock, Inc.
- Reporting Manager
- BlackRock, Inc.
- Symbol
- MKTX
- Shares outstanding
- 37,440,786 shares
- Disclosed Ownership
- 1,572,513 shares
- Ownership
- 4.2%
- Form type
- SCHEDULE 13G/A
- Filing time
- 17 Oct 2025, 18:13:44 UTC
- Date of event
- 30 Sep 2025
- Previous filing
- 17 Apr 2025
- Next filing
- 21 Jan 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"BlackRock, Inc. disclosed 4.2% ownership in MarketAxess Holdings Inc Common Stock (MKTX) on 30 Sep 2025."
What Changed
- Previous schedule filing date: 17 Apr 2025.
- Current filing was accepted on 17 Oct 2025, 18:13.
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 FilingReporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 4.2% | 1,572,513 | 1,484,794 | 0 | Spencer Fleming | Managing Director |