22 insiders reported 79 Form 4 transactions for MARKETAXESS HOLDINGS INC (MKTX) over the past 18 months (most recent 2026-08-13). Recent activity: Portney Emily Hope (Director) Buy 2,085 shares, Portney Emily Hope (Director) Sell 2,085 shares, Pintoff Scott (General Counsel and Secretary) Sell 100 shares, Chwick Jane (Director) Sell 606 shares, Pintoff Scott (General Counsel and Secretary) Sell 100 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-13 | Portney Emily Hope | Director | Buy | 2,085 | $0 |
| 2026-08-13 | Portney Emily Hope | Director | Sell | 2,085 | $0 |
| 2026-08-10 | Pintoff Scott | General Counsel and Secretary | Sell | 100 | $16,260 |
| 2026-08-07 | Chwick Jane | Director | Sell | 606 | $0 |
| 2026-07-10 | Pintoff Scott | General Counsel and Secretary | Sell | 100 | $11,512 |
| 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 | Cifu Douglas A | Director | Buy | 1,390 | $0 |
| 2026-06-12 | KETCHUM RICHARD G | 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 | SCHICIANO KENNETH T | 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 | Gibson Kourtney | 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 |
| 2026-05-04 | Quan William | Chief Technology Officer | Buy | 218 | $0 |
| 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 |
Source: SEC Form 4 filings · as of 2026-08-13