| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MKTX | Common Stock, par value $0.003 per share | Tax liability | $75,989 | -277 | -0.04% | $274.33 | 621,533 | 31 Jan 2024 | Direct | F1 |
| transaction | MKTX | Common Stock, par value $0.003 per share | Tax liability | $398,327 | -1,452 | -0.23% | $274.33 | 620,081 | 31 Jan 2024 | Direct | F2 |
| transaction | MKTX | Common Stock, par value $0.003 per share | Tax liability | $195,049 | -711 | -0.11% | $274.33 | 619,370 | 31 Jan 2024 | Direct | F2 |
| transaction | MKTX | Common Stock, par value $0.003 per share | Tax liability | $178,863 | -652 | -0.11% | $274.33 | 618,718 | 31 Jan 2024 | Direct | F3 |
| holding | MKTX | Common Stock, par value $0.003 per share | 2,000 | 31 Jan 2024 | By Immediate Family Members |
| Id | Content |
|---|---|
| F1 | Represents the surrender of shares to the Company to satisfy the Reporting Person's tax withholding obligation upon the vesting of restricted stock units previously granted to the Reporting Person. |
| F2 | Represents the surrender of shares to the Company to satisfy the Reporting Person's tax withholding obligation upon the receipt of vested restricted stock units that had been previously deferred by the Reporting Person. |
| F3 | Represents the surrender of shares to the Company to satisfy the Reporting Person's tax withholding obligation upon the vesting of performance stock units previously granted to the Reporting Person and previously certified by the Company's Compensation and Talent Committee. |