| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Fiszel Bieler Ilene | Chief Financial Officer | C/O MARKETAXESS HOLDINGS INC., 55 HUDSON YARDS, 15TH FLOOR, NEW YORK | /s/ Patrick Wilson as Attorney-in-Fact for Ilene Fiszel Bieler | 17 Feb 2026 | 0002021091 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MKTX | Common Stock, par value $0.003 per share | Award | $0 | +5,005 | +113% | $0.000000 | 9,427 | 15 Feb 2026 | Direct | F1 |
| transaction | MKTX | Common Stock, par value $0.003 per share | Tax liability | $78,739 | -439 | -4.7% | $179.36 | 8,988 | 15 Feb 2026 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Represents a grant of restricted stock units pursuant to the Company's 2020 Equity Incentive Plan. The restricted stock units shall vest 34% on February 15, 2027, 33% on February 15, 2028, and 33% on February 15, 2029. |
| F2 | 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. |