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
Sep 29, 2021 (view filing)Sep 27-282 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$65.08−$2.60M−0.7%5.79M after4 lots
Sep 29, 2021 (view filing)Sep 27-282 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.4K$65.14−$2.37M−2.2%1.61M after4 lots
Oct 1, 2021 (view filing)Sep 29-302 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.52−$2.58M−0.7%5.75M after4 lots
Oct 1, 2021 (view filing)Sep 29-302 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.1K$64.46−$2.39M−2.3%1.57M after4 lots
Oct 5, 2021 (view filing)Oct 1-44 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$64.06−$2.56M−0.7%5.71M after5 lots
Oct 5, 2021 (view filing)Oct 1-44 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.1K$64.04−$2.38M−2.4%1.53M after5 lots
Oct 7, 2021 (view filing)Oct 5-62 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$67.00−$2.68M−0.7%5.67M after7 lots
Oct 7, 2021 (view filing)Oct 5-62 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.4K$67.09−$2.44M−2.4%1.50M after7 lots
Oct 12, 2021 (view filing)Oct 7-85 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$71.16−$2.85M−0.7%5.63M after4 lots
Oct 12, 2021 (view filing)Oct 7-85 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−35.5K$71.17−$2.53M−2.4%1.46M after4 lots
Oct 13, 2021 (view filing)Oct 11-122 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$72.04−$2.88M−0.7%5.59M after3 lots
Oct 13, 2021 (view filing)Oct 11-122 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.1K$72.04−$2.68M−2.5%1.42M after3 lots
Oct 15, 2021 (view filing)Oct 13-142 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$71.16−$2.85M−0.7%5.55M after4 lots
Oct 15, 2021 (view filing)Oct 13-142 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−35.6K$71.15−$2.53M−2.5%1.39M after4 lots
Oct 19, 2021 (view filing)Oct 15-184 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$71.77−$2.87M−0.7%5.51M after5 lots
Oct 19, 2021 (view filing)Oct 15-184 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.4K$71.76−$2.61M−2.6%1.35M after5 lots
Oct 21, 2021 (view filing)Oct 19-202 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$73.50−$2.94M−0.7%5.47M after5 lots
Oct 21, 2021 (view filing)Oct 19-202 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−35.8K$73.59−$2.64M−2.6%1.32M after6 lots
Oct 22, 2021 (view filing)Oct 211 dayMendonca DenisChief Accounting OfficerSSaleClass A common stock−8.59K$75.00−$644.3K−32.5%17.9K after
Oct 25, 2021 (view filing)Oct 21-224 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$74.07−$2.96M−0.7%5.43M after3 lots
Oct 25, 2021 (view filing)Oct 21-224 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.4K$74.07−$2.70M−2.8%1.28M after4 lots
Oct 27, 2021 (view filing)Oct 25-262 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$74.13−$2.97M−0.7%5.39M after4 lots
Oct 27, 2021 (view filing)Oct 25-262 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−35.7K$74.02−$2.64M−2.8%1.24M after4 lots
Oct 29, 2021 (view filing)Oct 27-282 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$71.15−$2.85M−0.7%5.35M after4 lots
Oct 29, 2021 (view filing)Oct 27-282 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−36.7K$71.14−$2.61M−2.9%1.21M after4 lots
Nov 2, 2021 (view filing)Oct 29-Nov 14 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$71.54−$2.86M−0.7%5.31M after5 lots
Nov 2, 2021 (view filing)Oct 29-Nov 14 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−37.1K$71.72−$2.66M−3.1%1.17M after5 lots
Nov 4, 2021 (view filing)Nov 2-32 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$74.68−$2.99M−0.8%5.27M after5 lots
Nov 4, 2021 (view filing)Nov 2-32 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−35.4K$74.65−$2.64M−3.0%1.13M after4 lots
Nov 8, 2021 (view filing)Nov 4-54 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$74.62−$2.98M−0.8%5.23M after4 lots
Nov 8, 2021 (view filing)Nov 4-54 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−32.5K$74.55−$2.42M−2.9%1.10M after4 lots
Nov 10, 2021 (view filing)Nov 8-92 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$73.18−$2.93M−0.8%5.19M after4 lots
Nov 10, 2021 (view filing)Nov 8-92 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.4K$73.19−$2.44M−3.0%1.07M after4 lots
Nov 12, 2021 (view filing)Nov 10-112 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.4K$73.39−$2.45M−3.1%1.04M after3 lots
Nov 12, 2021 (view filing)Nov 10-112 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$73.41−$2.94M−0.8%5.15M after3 lots
Nov 16, 2021 (view filing)Nov 12-154 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.1K$73.60−$2.44M−3.2%1.00M after3 lots
Nov 16, 2021 (view filing)Nov 12-154 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$73.62−$2.94M−0.8%5.11M after3 lots
Nov 18, 2021 (view filing)Nov 16-172 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$74.06−$2.96M−0.8%5.07M after3 lots
Nov 18, 2021 (view filing)Nov 16-172 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.4K$74.07−$2.48M−3.3%969.1K after3 lots
Nov 22, 2021 (view filing)Nov 18-194 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.3K$74.48−$2.48M−3.4%935.8K after4 lots
Nov 22, 2021 (view filing)Nov 18-194 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$74.48−$2.98M−0.8%5.03M after4 lots
Nov 24, 2021 (view filing)Nov 22-232 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$75.97−$3.04M−0.8%4.99M after4 lots
Nov 24, 2021 (view filing)Nov 22-232 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.1K$75.99−$2.52M−3.5%902.7K after4 lots
Nov 29, 2021 (view filing)Nov 24-265 daysPeterffy ThomasChairmanSSaleClass A common stock−32.7K$76.35−$2.50M−0.7%4.95M after5 lots
Nov 29, 2021 (view filing)Nov 24-265 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−25.6K$76.51−$1.96M−2.8%877.1K after5 lots
Dec 1, 2021 (view filing)Nov 29-302 daysPeterffy ThomasChairmanSSaleClass A common stock−46.0K$74.72−$3.44M−0.9%4.91M after4 lots
Dec 1, 2021 (view filing)Nov 29-302 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.6K$74.69−$2.51M−3.8%843.5K after4 lots
Dec 3, 2021 (view filing)Dec 1-22 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−33.7K$75.97−$2.56M−4.0%809.8K after6 lots
Dec 3, 2021 (view filing)Dec 1-22 daysPeterffy ThomasChairmanSSaleClass A common stock−41.3K$75.95−$3.14M−0.8%4.87M after5 lots
Dec 7, 2021 (view filing)Dec 3-64 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−30.4K$75.28−$2.29M−3.8%779.4K after5 lots