| Insider · 13 positions | Net Shares per Quarter (+ Bought / − Sold) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Name | Role | Shares Held ↓ | Q3 2026 | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 | Q4 2023 | Q3 2023 | Q2 2023 | Q1 2023 | Q4 2022 |
| Milan Galik | Chief Executive Officer | 3.2M | — | -255K | +389 | -671K | — | -64K | — | -154K | — | -62K | — | +136K | — | — | — | — |
| Paul Jonathan Brody | Chief Financial Officer | 2.9M | — | -83K | +389 | +54K | — | -22K | — | +18K | — | -23K | — | -163K | — | — | — | — |
| Thomas Peterffy | Chairman | 1.5M | — | — | — | — | — | — | -97K | -80K | — | +62K | — | — | — | — | — | — |
| Earl H Nemser | Vice Chairman | 804K | +804K | -22K | -400K | +24K | — | -6K | — | +8K | +100K | -4K | -200K | +14K | — | — | — | — |
| Thomas Aj Frank | Executive Vice President | 252K | — | -32K | — | +14K | — | -8K | — | +7K | — | -8K | -566K | -38K | — | — | — | — |
| Lawrence E Harris | — | 173K | — | -26K | +389 | -55K | — | — | — | +142 | — | — | — | +302 | — | — | — | — |
| Denis Mendonca | Chief Accounting Officer | 145K | — | -11K | — | +11K | — | -2K | — | +4K | — | -2K | — | +8K | — | — | — | — |
| Jill Bright | — | 11K | — | — | +389 | +789 | — | — | +135 | +142 | — | — | — | +302 | — | — | — | — |
| William Peterffy | — | 10K | — | — | +389 | +389 | — | — | — | +142 | — | — | — | +302 | — | — | — | — |
| Nicole Yuen | — | 10K | — | — | +389 | +389 | — | — | — | +142 | — | — | — | +302 | — | — | — | — |
| Richard H Repetto | — | 3K | — | — | +389 | +389 | — | — | — | +567 | — | — | — | — | — | — | — | — |
| Philip Uhde | — | 3K | — | — | — | — | — | — | — | — | — | — | — | +302 | — | — | — | — |
| Lori A Conkling | — | 3K | +50 | +75 | +464 | +2K | — | — | — | — | — | — | — | — | — | — | — | — |