SEC Insider Transactions from Peterffy Thomas.

Last updated: 2026-03-14 11:32 UTC | Total transactions: 39

Peterffy Thomas has filed 39 insider transactions across 1 company since January 2023.

Most recent transaction: a gift of 6447 shares of Interactive Brokers Group, Inc. ($IBKR) on February 20, 2025.

Activity breakdown: 0 open-market purchases and 34 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Feb. 20, 2025 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman G Class A common stock 6447 $0.00 1,516,182.0000 109,002,938 0.42% 0.01%
Feb. 18, 2025 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman G Class A common stock 85427 $0.00 1,527,499.0000 109,002,938 5.30% 0.08%
Feb. 18, 2025 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman G Class A common stock 4870 $0.00 1,522,629.0000 109,002,938 0.32% 0.00%
Oct. 1, 2024 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman G Class A common stock 79975 $0.00 1,612,926.0000 438,145,440 4.72% 0.02%
April 23, 2024 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman J Class A common Stock 62296 $114.69 1,692,901.0000 105,846,877 3.82% 0.06%
Jan. 26, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 19700 $78.72 1,650,905.0000 101,299,609 1.18% 0.02%
Jan. 26, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 300 $79.79 1,650,605.0000 101,299,609 0.02% 0.00%
Jan. 27, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 7300 $77.35 1,643,305.0000 101,299,609 0.44% 0.01%
Jan. 27, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 11700 $77.93 1,631,605.0000 101,299,609 0.71% 0.01%
Jan. 27, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 1000 $78.67 1,630,605.0000 101,299,609 0.06% 0.00%
Jan. 24, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 18600 $79.08 1,692,005.0000 101,299,609 1.09% 0.02%
Jan. 24, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 1400 $80.12 1,690,605.0000 101,299,609 0.08% 0.00%
Jan. 25, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 10400 $78.15 1,680,205.0000 101,299,609 0.62% 0.01%
Jan. 25, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 9600 $78.69 1,670,605.0000 101,299,609 0.57% 0.01%
Jan. 20, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 4600 $77.65 1,746,005.0000 101,299,609 0.26% 0.00%
Jan. 20, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 15400 $78.59 1,730,605.0000 101,299,609 0.88% 0.02%
Jan. 23, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 5200 $78.36 1,725,405.0000 101,299,609 0.30% 0.01%
Jan. 23, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 14200 $79.49 1,711,205.0000 101,299,609 0.82% 0.01%
Jan. 23, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 600 $79.92 1,710,605.0000 101,299,609 0.04% 0.00%
Jan. 18, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 1800 $76.51 1,788,805.0000 101,299,609 0.10% 0.00%
Jan. 18, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 3000 $78.03 1,785,805.0000 101,299,609 0.17% 0.00%
Jan. 18, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 4300 $78.87 1,781,505.0000 101,299,609 0.24% 0.00%
Jan. 18, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 4300 $79.67 1,777,205.0000 101,299,609 0.24% 0.00%
Jan. 18, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 6600 $80.83 1,770,605.0000 101,299,609 0.37% 0.01%
Jan. 19, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 11100 $79.36 1,759,505.0000 101,299,609 0.63% 0.01%
Jan. 19, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 8900 $79.79 1,750,605.0000 101,299,609 0.51% 0.01%
Jan. 13, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 16500 $75.42 1,814,105.0000 101,299,609 0.90% 0.02%
Jan. 13, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 3500 $76.50 1,810,605.0000 101,299,609 0.19% 0.00%
Jan. 17, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 6149 $76.89 1,804,456.0000 101,299,609 0.34% 0.01%
Jan. 17, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 12651 $77.58 1,791,805.0000 101,299,609 0.70% 0.01%
Jan. 17, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 1200 $78.19 1,790,605.0000 101,299,609 0.07% 0.00%
Jan. 11, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 17700 $75.62 1,838,405.0000 101,299,609 0.95% 0.02%
Jan. 11, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 2300 $76.42 1,836,105.0000 101,299,609 0.13% 0.00%
Jan. 12, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 5500 $75.01 1,830,605.0000 101,299,609 0.30% 0.01%
Jan. 9, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 6800 $75.42 1,889,305.0000 101,299,609 0.36% 0.01%
Jan. 9, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 12900 $76.35 1,876,405.0000 101,299,609 0.68% 0.01%
Jan. 9, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 300 $77.00 1,876,105.0000 101,299,609 0.02% 0.00%
Jan. 10, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 19700 $75.53 1,856,405.0000 101,299,609 1.05% 0.02%
Jan. 10, 2023 Interactive Brokers Group, Inc. $IBKR Peterffy Thomas Chairman S Class A common stock 300 $76.00 1,856,105.0000 101,299,609 0.02% 0.00%