Canonical: https://ownershiptrace.com/13f/companies/1189

# Who owns MARKETAXESS HOLDINGS INC (MKTX)? Elite investor 13F holders

8 tracked elite investors reported holding MARKETAXESS HOLDINGS INC as of 2026-06-30, including Renaissance Technologies LLC, Tudor Investment, Gotham Asset Management, Century Management, First Eagle Investment Management. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

8 tracked investors currently reported holding · Latest report period: 2026-06-30 · Financials · Financial Services

MarketAxess Holdings Inc., together with its subsidiaries, operates an electronic trading platform for institutional investor and broker-dealer firms in the United States, the United Kingdom, and internationally. The company offers trading technology to access liquidity on its platforms in U.S. high-grade bonds, U.S. high-yield bonds, emerging market debt, eurobonds, municipal bonds, U.S.…

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | MARKETAXESS HLDGS INC | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 22698000.00 USD | 200000.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |
| [Tudor Investment](https://ownershiptrace.com/13f/investors/94675) | MARKETAXESS HLDGS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 15644256.00 USD | 137847.000000 | Shares | buy | [Original filing](https://www.sec.gov/Archives/edgar/data/923093/0000902664-26-003485-index.html) |
| [Gotham Asset Management](https://ownershiptrace.com/13f/investors/94672) | MARKETAXESS HLDGS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 1334869.00 USD | 11762.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1510387/0001398344-26-014644-index.html) |
| [Century Management](https://ownershiptrace.com/13f/investors/6) | MARKETAXESS HLDGS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 5907608.00 USD | 52054.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1142062/0001398344-26-014492-index.html) |
| [First Eagle Investment Management](https://ownershiptrace.com/13f/investors/32) | MARKETAXESS HLDGS INC | SHARE | 2026-06-30 | 2026-08-05 00:00:00 | 5626494.00 USD | 49577.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1325447/0001325447-26-000020-index.html) |
| [D.E. Shaw](https://ownershiptrace.com/13f/investors/98) | MARKETAXESS HLDGS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 5444910.00 USD | 47977.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1009207/0001104659-26-097217-index.html) |
| [Bridgewater Associates](https://ownershiptrace.com/13f/investors/8) | MARKETAXESS HLDGS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 797154.00 USD | 7024.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1350694/0001350694-26-000003-index.html) |
| [Ancora Advisors / Ancora Holdings](https://ownershiptrace.com/13f/investors/101) | MARKETAXESS HLDGS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 7150.00 USD | 63.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1446114/0001446114-26-000012-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

This public summary shows the default reporting scope. Enable JavaScript for interactive filters, charts, and additional rows.

[How to read the data](https://ownershiptrace.com/docs#reading-the-data) · [Disclaimer](https://ownershiptrace.com/disclaimer)