| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Brody Paul Jonathan | Chief Financial Officer, Director | ONE PICKWICK PLAZA, GREENWICH | /s/ Raymond Bussiere as authorized signatory for Paul J. Brody | 03 Jun 2025 | 0001391403 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IBKR | Class A common stock | Tax liability | -$4.12M | -22.2K | -2.98% | $185.60 | 721K | 09 May 2025 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | The price represents the closing price of the issuer's Class A common stock on May 9, 2025, the vesting date. |
| F2 | This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the Plan and (b) unvested restricted stock units that were awarded under the Plan. |