Fiszel Bieler Ilene (CIK 2021091) reported 5 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-03). Recent activity: Sell MKTX (332 shares), Buy MKTX (5,005 shares), Sell MKTX (439 shares), Sell MKTX (242 shares), Buy MKTX (2,867 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-03 | MARKETAXESS HOLDINGS INC (MKTX) | Chief Financial Officer | Sell | 332 | $40,896 |
| 2026-02-17 | MARKETAXESS HOLDINGS INC (MKTX) | Chief Financial Officer | Buy | 5,005 | $0 |
| 2026-02-17 | MARKETAXESS HOLDINGS INC (MKTX) | Chief Financial Officer | Sell | 439 | $78,739 |
| 2025-06-03 | MARKETAXESS HOLDINGS INC (MKTX) | Chief Financial Officer | Sell | 242 | $53,003 |
| 2025-02-18 | MARKETAXESS HOLDINGS INC (MKTX) | Chief Financial Officer | Buy | 2,867 | $0 |
Source: SEC Form 4 filings · as of 2026-06-03