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Interactive Brokers Group, Inc.

IBKR
Exchange
Nasdaq
Industry
Security Brokers, Dealers & Flotation Companies
SEC CIK
0001381197

In the last 90 days, Interactive Brokers Group, Inc. insiders filed 3 open-market purchases and 0 sales; 1,119 institutions reported holding it in 13F filings for Q2 2026, worth $33.7B in total; 3 superinvestors hold it, including Viking Global Investors and Lone Pine Capital.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Interactive Brokers Group, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
3 filings
1 insider, $6.74K in total
Open-market sells
0 filings
Insiders trading
1
Net value
+$6.74K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Interactive Brokers Group, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Interactive Brokers Group, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Conkling Lori ADirector2,559Sep 2, 20269
Nemser Earl HVice Chairman803,568IndirectAug 4, 20266
Frank Thomas AJExecutive Vice President251,518May 28, 20262
Brody Paul JonathanChief Financial Officer2,856,806May 28, 20265
Galik MilanChief Executive Officer3,215,389May 28, 20264
Mendonca DenisChief Accounting Officer145,071May 28, 20262
Harris Lawrence EDirector173,482Apr 29, 20266
Bright JillDirector11,082Jan 26, 20263
Peterffy WilliamDirector10,126Jan 26, 20262
Yuen NicoleDirector10,126Jan 26, 20262
Repetto Richard HDirector3,046Jan 26, 20262
Peterffy ThomasChairman1,516,182Feb 24, 20250
Uhde PhilipDirector2,572Jan 9, 20240
Katz GaryDirector1,928Jan 6, 20230
Damgard John M.Director2,188Jan 6, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Dec 7, 2021 (view filing)Dec 3-64 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$75.29−$3.01M−0.8%4.83M after5 lots
Dec 9, 2021 (view filing)Dec 7-82 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.2K$76.83−$2.55M−4.3%746.2K after4 lots
Dec 9, 2021 (view filing)Dec 7-82 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$76.83−$3.07M−0.8%4.79M after4 lots
Dec 13, 2021 (view filing)Dec 9-104 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.0K$76.18−$2.51M−4.4%713.3K after3 lots
Dec 13, 2021 (view filing)Dec 9-104 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$76.18−$3.05M−0.8%4.75M after3 lots
Dec 15, 2021 (view filing)Dec 13-142 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−32.7K$75.40−$2.47M−4.6%680.5K after3 lots
Dec 15, 2021 (view filing)Dec 13-142 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$75.35−$3.01M−0.8%4.71M after3 lots
Dec 17, 2021 (view filing)Dec 15-162 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.1K$77.57−$2.57M−4.9%647.4K after5 lots
Dec 17, 2021 (view filing)Dec 15-162 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$77.51−$3.10M−0.8%4.67M after5 lots
Dec 21, 2021 (view filing)Dec 17-204 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$76.35−$3.05M−0.9%4.63M after4 lots
Dec 21, 2021 (view filing)Dec 17-204 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.7K$76.34−$2.57M−5.2%613.7K after4 lots
Dec 23, 2021 (view filing)Dec 21-222 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.7K$77.51−$2.61M−5.5%580.0K after5 lots
Dec 23, 2021 (view filing)Dec 21-222 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$77.44−$3.10M−0.9%4.59M after4 lots
Dec 28, 2021 (view filing)Dec 23-275 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.7K$80.04−$2.70M−5.8%546.3K after4 lots
Dec 28, 2021 (view filing)Dec 23-275 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$80.04−$3.20M−0.9%4.55M after3 lots
Dec 30, 2021 (view filing)Dec 28-292 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.1K$81.37−$2.69M−6.1%513.3K after3 lots
Dec 30, 2021 (view filing)Dec 28-292 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$81.37−$3.25M−0.9%4.51M after3 lots
Jan 3, 2022 (view filing)Dec 30-31, 20214 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−32.7K$80.15−$2.62M−6.4%480.6K after3 lots
Jan 3, 2022 (view filing)Dec 30-31, 20214 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$80.18−$3.21M−0.9%4.47M after3 lots
Jan 5, 2022 (view filing)Jan 3-42 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.4K$79.21−$2.65M−7.0%447.2K after8 lots
Jan 5, 2022 (view filing)Jan 3-42 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$79.24−$3.17M−0.9%4.43M after8 lots
Jan 7, 2022 (view filing)Jan 5-62 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.7K$77.44−$2.61M−7.3%427.8K after6 lots
Jan 7, 2022 (view filing)Jan 5-62 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$77.47−$3.10M−0.9%4.39M after4 lots
Jan 11, 2022 (view filing)Jan 7-104 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−32.9K$76.51−$2.52M−7.7%394.9K after3 lots
Jan 11, 2022 (view filing)Jan 7-104 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$76.49−$3.06M−0.9%4.35M after3 lots
Jan 13, 2022 (view filing)Jan 11-122 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$76.93−$3.08M−0.9%4.31M after3 lots
Jan 13, 2022 (view filing)Jan 11-122 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−32.8K$76.93−$2.52M−8.3%362.0K after3 lots
Jan 18, 2022 (view filing)Jan 135 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−6.30K$76.81−$483.7K−1.7%355.7K after
Jan 18, 2022 (view filing)Jan 13-145 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$75.28−$3.01M−0.9%4.27M after4 lots
Jan 20, 2022 (view filing)Jan 18-192 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$72.65−$2.91M−0.9%4.23M after6 lots
Jan 24, 2022 (view filing)Jan 20-214 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$72.10−$2.88M−0.9%4.19M after6 lots
Jan 26, 2022 (view filing)Jan 24-252 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$66.30−$2.65M−1.0%4.15M after6 lots
Jan 28, 2022 (view filing)Jan 26-272 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$66.28−$2.65M−1.0%4.11M after5 lots
Feb 1, 2022 (view filing)Jan 28-314 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$66.08−$2.64M−1.0%4.07M after5 lots
Feb 3, 2022 (view filing)Feb 1-22 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$69.78−$2.79M−1.0%4.03M after5 lots
Feb 7, 2022 (view filing)Feb 3-44 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$71.14−$2.85M−1.0%3.99M after7 lots
Feb 9, 2022 (view filing)Feb 7-82 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$73.52−$2.94M−1.0%3.95M after4 lots
Feb 11, 2022 (view filing)Feb 9-102 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$74.91−$3.00M−1.0%3.91M after5 lots
Feb 15, 2022 (view filing)Feb 11-144 daysPeterffy ThomasChairmanSSaleClass A common stock−33.0K$73.61−$2.43M−0.8%3.87M after5 lots
Feb 17, 2022 (view filing)Feb 15-162 daysPeterffy ThomasChairmanSSaleClass A common stock−44.3K$73.82−$3.27M−1.1%3.83M after3 lots
Feb 22, 2022 (view filing)Feb 17-185 daysPeterffy ThomasChairmanSSaleClass A common stock−42.7K$71.12−$3.04M−1.1%3.79M after6 lots
Feb 24, 2022 (view filing)Feb 22-232 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$68.34−$2.73M−1.1%3.75M after6 lots
Feb 28, 2022 (view filing)Feb 24-254 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$66.03−$2.64M−1.1%3.71M after6 lots
Mar 2, 2022 (view filing)Feb 28-Mar 12 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$65.29−$2.61M−1.1%3.67M after6 lots
Mar 4, 2022 (view filing)Mar 2-32 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$62.72−$2.51M−1.1%3.63M after5 lots
Mar 8, 2022 (view filing)Mar 4-74 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$58.82−$2.35M−1.1%3.59M after4 lots
Mar 10, 2022 (view filing)Mar 8-92 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$60.09−$2.40M−1.1%3.55M after6 lots
Mar 14, 2022 (view filing)Mar 10-114 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.44−$2.46M−1.1%3.51M after4 lots
Mar 16, 2022 (view filing)Mar 14-152 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$62.12−$2.48M−1.1%3.47M after5 lots
Mar 18, 2022 (view filing)Mar 16-172 daysPeterffy ThomasChairmanSSaleClass A common stock−37.8K$64.54−$2.44M−1.1%3.43M after6 lots