# Marketaxess Holdings (MKTX): value investors who own it

2 value investors held Marketaxess Holdings in their Q3 2026 13F, led by First Eagle Investment Management, Horizon Kinetics.

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| First Eagle Investment Management | 0.0% | $5.6m | Added +225250% | 3 |
| Horizon Kinetics | 0.0% | $256k | Added +7.2% | 11 |

## Directors buying and selling (Form 4, last 12 months)

| Date | Who | Role | Bought or sold | Shares | Value |
| --- | --- | --- | --- | --- | --- |
| 2026-10-12 | Pintoff Scott | General Counsel and Secretary | Sold | 100 | $16k |
| 2026-09-10 | Cruger William Frank Jr. | Director | Sold | 6164 | $1.0m |
| 2026-09-10 | Pintoff Scott | General Counsel and Secretary | Sold | 100 | $16k |
| 2026-08-10 | Pintoff Scott | General Counsel and Secretary | Sold | 100 | $16k |

Source: SEC filings, via moatshark (https://www.moatshark.com/s/mktx). Values traded and returns are estimates. Not investment advice. Built 2026-10-21.