Thomas Peterffy is Chairman at Interactive Brokers Group, Inc. (IBKR). They have made 245 open-market trades across 1 company since 2020, most recently 2025-02-20.
CIK 0001391405
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 245 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| IBKR | 1,516,182 | $125.4M |
Shares reported on the most recent Form 4, priced at the 2025-02-24 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| IBKR | SELL | 2023-01-26 | 2023-01-30 | $78.17 | $4.0M | +11.1% | +12.3% | -0.7% |
| IBKR | SELL | 2023-01-24 | 2023-01-26 | $78.65 | $4.0M | +8.9% | +9.3% | -2.5% |
| IBKR | SELL | 2023-01-20 | 2023-01-24 | $78.79 | $3.2M | +7.0% | +9.4% | +2.8% |
| IBKR | SELL | 2023-01-18 | 2023-01-20 | $79.45 | $3.2M | +4.4% | +10.4% | +3.9% |
| IBKR | SELL | 2023-01-13 | 2023-01-18 | $76.78 | $4.5M | -4.2% | +6.9% | +4.4% |
| IBKR | SELL | 2023-01-11 | 2023-01-13 | $75.56 | $1.9M | +1.5% | +11.3% | +5.6% |
| IBKR | SELL | 2023-01-09 | 2023-01-11 | $75.93 | $4.0M | +6.1% | +15.9% | +7.9% |
| IBKR | SELL · 10b5-1 | 2022-12-13 | 2022-12-15 | $75.09 | $30K | +5.1% | +11.6% | +9.8% |
| IBKR | SELL | 2022-12-08 | 2022-12-12 | $76.01 | $4.6M | -5.6% | -1.9% | +0.5% |
| IBKR | SELL | 2022-12-06 | 2022-12-08 | $77.51 | $3.1M | -6.8% | -1.6% | +17.2% |
| IBKR | SELL | 2022-12-02 | 2022-12-06 | $78.41 | $4.7M | -11.4% | -8.4% | +12.4% |
| IBKR | SELL | 2022-11-30 | 2022-12-02 | $78.53 | $4.6M | -9.4% | -9.2% | +12.8% |
| IBKR | SELL | 2022-11-28 | 2022-11-30 | $78.65 | $6.3M | -7.6% | -9.9% | +7.2% |
| IBKR | SELL | 2022-11-23 | 2022-11-28 | $78.35 | $5.0M | -3.0% | -7.5% | +9.8% |
| IBKR | SELL | 2022-11-22 | 2022-11-25 | $76.66 | $1.7M | -1.2% | -5.2% | +11.7% |
| IBKR | SELL | 2022-11-18 | 2022-11-22 | $75.20 | $2.6M | +0.2% | -7.4% | +12.3% |
| IBKR | SELL | 2022-11-16 | 2022-11-18 | $75.20 | $4.1M | +4.8% | -7.6% | +16.5% |
| IBKR | SELL | 2022-11-15 | 2022-11-16 | $75.99 | $1.5M | +8.7% | -5.3% | +17.6% |
| IBKR | SELL | 2022-11-10 | 2022-11-14 | $77.81 | $2.3M | +4.1% | -4.5% | +15.9% |
| IBKR | SELL | 2022-11-08 | 2022-11-10 | $79.56 | $3.2M | -1.1% | -5.6% | +9.8% |
| IBKR | SELL | 2022-11-04 | 2022-11-08 | $80.03 | $4.8M | -5.7% | -4.2% | +6.2% |
| IBKR | SELL | 2022-11-02 | 2022-11-04 | $80.39 | $3.4M | -6.6% | -2.7% | +1.5% |
| IBKR | SELL | 2022-10-31 | 2022-11-02 | $80.02 | $4.2M | -7.0% | -0.7% | +0.9% |
| IBKR | SELL | 2022-10-27 | 2022-10-31 | $79.82 | $3.2M | -2.7% | -0.5% | -3.7% |
| IBKR | SELL | 2022-10-25 | 2022-10-27 | $77.92 | $4.6M | +0.2% | -1.8% | -1.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.