Skip to main content

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, 20266
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
Jul 1, 2021 (view filing)Jun 29-302 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$65.91−$2.64M−0.6%7.03M after2 lots
Jul 6, 2021 (view filing)Jul 1-25 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$65.93−$2.64M−0.6%6.99M after3 lots
Jul 8, 2021 (view filing)Jul 6-72 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.29−$2.57M−0.6%6.95M after4 lots
Jul 12, 2021 (view filing)Jul 8-94 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.17−$2.57M−0.6%6.91M after4 lots
Jul 14, 2021 (view filing)Jul 12-132 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.72−$2.59M−0.6%6.87M after3 lots
Jul 16, 2021 (view filing)Jul 14-152 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$63.84−$2.55M−0.6%6.83M after3 lots
Jul 20, 2021 (view filing)Jul 16-194 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$62.93−$2.52M−0.6%6.79M after3 lots
Jul 22, 2021 (view filing)Jul 20-212 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$63.07−$2.52M−0.6%6.75M after4 lots
Jul 26, 2021 (view filing)Jul 22-234 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.73−$2.47M−0.6%6.71M after3 lots
Jul 28, 2021 (view filing)Jul 26-272 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$60.52−$2.42M−0.6%6.67M after2 lots
Jul 30, 2021 (view filing)Jul 28-292 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.48−$2.46M−0.6%6.63M after4 lots
Aug 3, 2021 (view filing)Jul 30-Aug 24 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$62.47−$2.50M−0.6%6.59M after4 lots
Aug 5, 2021 (view filing)Aug 3-42 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.4K$61.72−$2.24M−1.6%2.31M after5 lots
Aug 5, 2021 (view filing)Aug 3-42 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.70−$2.47M−0.6%6.55M after5 lots
Aug 9, 2021 (view filing)Aug 5-64 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.8K$62.69−$2.31M−1.6%2.27M after3 lots
Aug 9, 2021 (view filing)Aug 5-64 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$62.66−$2.51M−0.6%6.51M after3 lots
Aug 11, 2021 (view filing)Aug 9-102 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$63.67−$2.55M−0.6%6.47M after4 lots
Aug 11, 2021 (view filing)Aug 9-102 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.1K$63.68−$2.37M−1.6%2.23M after4 lots
Aug 13, 2021 (view filing)Aug 11-122 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$63.63−$2.54M−0.6%6.43M after2 lots
Aug 13, 2021 (view filing)Aug 11-122 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.1K$63.61−$2.36M−1.7%2.19M after2 lots
Aug 17, 2021 (view filing)Aug 13-164 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$62.70−$2.51M−0.6%6.39M after3 lots
Aug 17, 2021 (view filing)Aug 13-164 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.1K$62.71−$2.33M−1.7%2.16M after3 lots
Aug 19, 2021 (view filing)Aug 17-182 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.82−$2.47M−0.6%6.35M after3 lots
Aug 19, 2021 (view filing)Aug 17-182 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.0K$61.84−$2.29M−1.7%2.12M after3 lots
Aug 23, 2021 (view filing)Aug 19-204 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.27−$2.45M−0.6%6.31M after4 lots
Aug 23, 2021 (view filing)Aug 19-204 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.8K$61.26−$2.25M−1.7%2.08M after4 lots
Aug 25, 2021 (view filing)Aug 23-242 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$62.58−$2.50M−0.6%6.27M after2 lots
Aug 25, 2021 (view filing)Aug 23-242 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.1K$62.59−$2.32M−1.8%2.05M after2 lots
Aug 27, 2021 (view filing)Aug 25-262 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$63.86−$2.55M−0.6%6.23M after3 lots
Aug 27, 2021 (view filing)Aug 25-262 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.0K$63.86−$2.36M−1.8%2.01M after3 lots
Aug 31, 2021 (view filing)Aug 27-304 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.76−$2.59M−0.6%6.19M after3 lots
Aug 31, 2021 (view filing)Aug 27-304 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.8K$64.78−$2.39M−1.8%1.97M after3 lots
Sep 2, 2021 (view filing)Aug 31-Sep 12 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.4K$64.83−$2.36M−1.8%1.94M after3 lots
Sep 2, 2021 (view filing)Aug 31-Sep 12 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.81−$2.59M−0.6%6.15M after3 lots
Sep 7, 2021 (view filing)Sep 2-35 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.64−$2.59M−0.7%6.11M after2 lots
Sep 7, 2021 (view filing)Sep 2-35 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−35.7K$64.63−$2.31M−1.8%1.90M after2 lots
Sep 9, 2021 (view filing)Sep 7-82 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.09−$2.56M−0.7%6.07M after3 lots
Sep 9, 2021 (view filing)Sep 7-82 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.2K$64.08−$2.32M−1.9%1.86M after3 lots
Sep 13, 2021 (view filing)Sep 9-104 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.8K$63.16−$2.33M−2.0%1.83M after3 lots
Sep 13, 2021 (view filing)Sep 9-104 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$63.16−$2.53M−0.7%6.03M after3 lots
Sep 15, 2021 (view filing)Sep 13-142 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$61.90−$2.48M−0.7%5.99M after4 lots
Sep 15, 2021 (view filing)Sep 13-142 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−35.7K$61.88−$2.21M−2.0%1.79M after4 lots
Sep 17, 2021 (view filing)Sep 15-162 daysPeterffy ThomasChairmanSSaleClass A common stock−37.8K$61.52−$2.33M−0.6%5.95M after3 lots
Sep 17, 2021 (view filing)Sep 15-162 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.0K$61.50−$2.27M−2.1%1.75M after3 lots
Sep 21, 2021 (view filing)Sep 17-204 daysPeterffy ThomasChairmanSSaleClass A common stock−42.2K$60.61−$2.56M−0.7%5.91M after3 lots
Sep 21, 2021 (view filing)Sep 17-204 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.4K$60.56−$2.20M−2.1%1.72M after3 lots
Sep 23, 2021 (view filing)Sep 21-222 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$59.91−$2.40M−0.7%5.87M after3 lots
Sep 23, 2021 (view filing)Sep 21-222 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.0K$59.92−$2.22M−2.2%1.68M after2 lots
Sep 27, 2021 (view filing)Sep 23-244 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$62.03−$2.48M−0.7%5.83M after3 lots
Sep 27, 2021 (view filing)Sep 23-244 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.1K$62.08−$2.31M−2.2%1.64M after3 lots