21 insiders reported 100 Form 4 transactions for MARKETAXESS HOLDINGS INC (MKTX) over the past 18 months (most recent 2026-06-18). Recent activity: HERNANDEZ CARLOS MAURICIO (Director) Buy 10,708 shares, HERNANDEZ CARLOS MAURICIO (Director) Sell 10,708 shares, Gibson Kourtney (Director) Buy 1,390 shares, KETCHUM RICHARD G (Director) Buy 1,390 shares, SCHICIANO KENNETH T (Director) Buy 1,390 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-18 | HERNANDEZ CARLOS MAURICIO | Director | Buy | 10,708 | $0 |
| 2026-06-18 | HERNANDEZ CARLOS MAURICIO | Director | Sell | 10,708 | $0 |
| 2026-06-12 | Gibson Kourtney | Director | Buy | 1,390 | $0 |
| 2026-06-12 | KETCHUM RICHARD G | Director | Buy | 1,390 | $0 |
| 2026-06-12 | SCHICIANO KENNETH T | Director | Buy | 1,390 | $0 |
| 2026-06-12 | Pintoff Scott | General Counsel and Secretary | Sell | 100 | $11,603 |
| 2026-06-12 | HERNANDEZ CARLOS MAURICIO | Director | Buy | 2,616 | $0 |
| 2026-06-12 | Begleiter Steven L | Director | Buy | 1,390 | $0 |
| 2026-06-12 | Cifu Douglas A | Director | Buy | 1,390 | $0 |
| 2026-06-12 | Chwick Jane | Director | Buy | 1,390 | $0 |
| 2026-06-12 | Cruger William Frank Jr. | Director | Buy | 1,390 | $0 |
| 2026-06-12 | Portney Emily Hope | Director | Buy | 1,390 | $0 |
| 2026-06-12 | Altobello Nancy A. | Director | Buy | 1,390 | $0 |
| 2026-06-12 | Hoornweg Roberto | Director | Buy | 1,390 | $0 |
| 2026-06-03 | Fiszel Bieler Ilene | Chief Financial Officer | Sell | 332 | $40,896 |
| 2026-05-11 | Pintoff Scott | General Counsel and Secretary | Sell | 100 | $14,699 |
| 2026-04-10 | Pintoff Scott | General Counsel and Secretary | Sell | 100 | $17,196 |
| 2026-04-06 | CONCANNON CHRISTOPHER R | Chief Executive Officer | Sell | 349 | $59,840 |
| 2026-03-10 | Pintoff Scott | General Counsel and Secretary | Sell | 100 | $18,493 |
| 2026-03-02 | Panchal Naineshkumar Shantilal | Chief Information Officer | Sell | 1,470 | $282,240 |
| 2026-03-02 | SCHICIANO KENNETH T | Director | Buy | 259 | $0 |
| 2026-03-02 | Cifu Douglas A | Director | Buy | 259 | $0 |
| 2026-02-17 | McPherson Kevin M | Chief Revenue Officer | Buy | 939 | $0 |
| 2026-02-17 | McPherson Kevin M | Chief Revenue Officer | Sell | 462 | $82,864 |
| 2026-02-17 | McPherson Kevin M | Chief Revenue Officer | Buy | 4,416 | $0 |
Source: SEC Form 4 filings · as of 2026-06-18