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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
Mar 22, 2022 (view filing)Mar 18-214 daysPeterffy ThomasChairmanSSaleClass A common stock−42.2K$65.55−$2.77M−1.2%3.39M after5 lots
Mar 24, 2022 (view filing)Mar 22-232 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$67.20−$2.69M−1.2%3.35M after4 lots
Mar 28, 2022 (view filing)Mar 24-254 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$66.18−$2.65M−1.2%3.31M after3 lots
Mar 30, 2022 (view filing)Mar 28-292 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$66.84−$2.67M−1.2%3.27M after3 lots
Apr 1, 2022 (view filing)Mar 30-312 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$67.09−$2.68M−1.2%3.23M after4 lots
Apr 5, 2022 (view filing)Apr 1-44 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$66.69−$2.67M−1.2%3.19M after4 lots
Apr 7, 2022 (view filing)Apr 5-62 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$65.44−$2.62M−1.3%3.15M after4 lots
Apr 11, 2022 (view filing)Apr 7-84 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.02−$2.56M−1.3%3.11M after4 lots
Apr 13, 2022 (view filing)Apr 11-122 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$65.18−$2.61M−1.3%3.07M after4 lots
Apr 15, 2022 (view filing)Apr 13-142 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$65.42−$2.62M−1.3%3.03M after3 lots
Apr 20, 2022 (view filing)Apr 18-192 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.61−$2.58M−1.3%2.99M after4 lots
Apr 22, 2022 (view filing)Apr 20-212 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$65.76−$2.63M−1.3%2.95M after8 lots
Apr 26, 2022 (view filing)Apr 22-254 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.38−$2.46M−1.4%2.91M after6 lots
Apr 28, 2022 (view filing)Apr 26-272 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.76−$2.47M−1.4%2.87M after6 lots
May 2, 2022 (view filing)Apr 28-294 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.15−$2.45M−1.4%2.83M after6 lots
May 4, 2022 (view filing)May 2-32 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$59.52−$2.38M−1.4%2.79M after5 lots
May 6, 2022 (view filing)May 4-52 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$57.99−$2.32M−1.4%2.75M after6 lots
May 10, 2022 (view filing)May 6-94 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$54.29−$2.17M−1.5%2.71M after5 lots
May 12, 2022 (view filing)May 10-112 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$54.20−$2.17M−1.5%2.67M after5 lots
May 16, 2022 (view filing)May 12-134 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$54.12−$2.16M−1.5%2.63M after4 lots
May 18, 2022 (view filing)May 16-172 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$55.25−$2.21M−1.5%2.59M after4 lots
May 20, 2022 (view filing)May 18-192 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$54.87−$2.19M−1.5%2.55M after5 lots
May 24, 2022 (view filing)May 20-234 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$56.61−$2.26M−1.6%2.51M after4 lots
May 26, 2022 (view filing)May 24-252 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$56.46−$2.26M−1.6%2.47M after4 lots
May 31, 2022 (view filing)May 26-275 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$59.82−$2.39M−1.6%2.43M after4 lots
Jun 2, 2022 (view filing)May 31-Jun 12 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$60.81−$2.43M−1.6%2.39M after4 lots
Jun 6, 2022 (view filing)Jun 2-34 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$60.32−$2.41M−1.7%2.35M after3 lots
Jun 8, 2022 (view filing)Jun 6-72 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$60.46−$2.42M−1.7%2.31M after4 lots
Jun 10, 2022 (view filing)Jun 8-92 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$58.69−$2.35M−1.7%2.27M after3 lots
Jun 14, 2022 (view filing)Jun 10-134 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$55.40−$2.22M−1.8%2.23M after4 lots
Jun 16, 2022 (view filing)Jun 14-152 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$56.01−$2.24M−1.8%2.19M after4 lots
Jun 21, 2022 (view filing)Jun 16-175 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$55.62−$2.22M−1.8%2.15M after4 lots
Jun 23, 2022 (view filing)Jun 21-222 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$57.36−$2.29M−1.9%2.11M after3 lots
Jun 27, 2022 (view filing)Jun 23-244 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$57.23−$2.29M−1.9%2.07M after3 lots
Jun 29, 2022 (view filing)Jun 27-282 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$58.02−$2.32M−1.9%2.03M after3 lots
Jul 1, 2022 (view filing)Jun 29-302 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$56.15−$2.25M−2.0%1.99M after3 lots
Jul 6, 2022 (view filing)Jul 1-55 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$55.28−$2.21M−2.0%1.95M after6 lots
Jul 8, 2022 (view filing)Jul 6-72 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$56.23−$2.25M−2.1%1.91M after3 lots
Jul 12, 2022 (view filing)Jul 8-114 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$55.50−$2.22M−2.1%1.87M after3 lots
Jul 14, 2022 (view filing)Jul 12-132 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$54.34−$2.17M−2.1%1.83M after4 lots
Jul 18, 2022 (view filing)Jul 14-154 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$53.64−$2.15M−2.2%1.79M after3 lots
Jul 20, 2022 (view filing)Jul 18-192 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$56.27−$2.25M−2.2%1.75M after4 lots
Jul 22, 2022 (view filing)Jul 20-212 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$56.60−$2.26M−2.3%1.71M after4 lots
Jul 26, 2022 (view filing)Jul 22-254 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$56.57−$2.26M−2.3%1.67M after3 lots
Jul 28, 2022 (view filing)Jul 26-272 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$56.54−$2.26M−2.4%1.63M after4 lots
Aug 1, 2022 (view filing)Jul 28-294 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$58.09−$2.32M−2.5%1.59M after2 lots
Oct 21, 2022 (view filing)Oct 19-202 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$75.30−$3.01M−1.5%2.55M after3 lots
Oct 25, 2022 (view filing)Oct 21-244 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$76.35−$3.05M−1.6%2.51M after4 lots
Oct 27, 2022 (view filing)Oct 25-262 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$77.97−$3.12M−1.6%2.47M after5 lots
Oct 31, 2022 (view filing)Oct 27-284 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$79.82−$3.19M−1.6%2.43M after4 lots