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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
Nov 2, 2022 (view filing)Oct 31-Nov 12 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$80.00−$3.20M−1.6%2.39M after5 lots
Nov 4, 2022 (view filing)Nov 2-32 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$80.35−$3.21M−1.7%2.35M after4 lots
Nov 8, 2022 (view filing)Nov 4-74 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−25.1K$79.89−$2.01M−8.5%269.8K after3 lots
Nov 8, 2022 (view filing)Nov 4-74 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$80.05−$3.20M−1.7%2.31M after5 lots
Nov 8, 2022 (view filing)Nov 2-36 daysLateFrank Thomas AJChief Information OfficerSSaleClass A common stock−15.0K$80.52−$1.21M−4.8%294.9K after3 lots
Nov 8, 2022 (view filing)Oct 31-Nov 18 daysLateFrank Thomas AJChief Information OfficerSSaleClass A common stock−40.0K$80.00−$3.20M−11.4%309.9K after5 lots
Nov 10, 2022 (view filing)Nov 8-92 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$79.56−$3.18M−1.7%2.27M after5 lots
Nov 10, 2022 (view filing)Nov 8-92 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−40.0K$79.51−$3.18M−14.8%229.8K after5 lots
Nov 14, 2022 (view filing)Nov 10-114 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−40.0K$76.77−$3.07M−17.4%189.8K after10 lots
Nov 14, 2022 (view filing)Nov 10-114 daysPeterffy ThomasChairmanSSaleClass A common stock−29.2K$77.81−$2.27M−1.3%2.24M after8 lots
Nov 16, 2022 (view filing)Nov 151 dayPeterffy ThomasChairmanSSaleClass A common stock−20.0K$75.99−$1.52M−0.9%2.22M after2 lots
Nov 16, 2022 (view filing)Nov 14-152 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−38.7K$74.78−$2.89M−20.4%151.1K after6 lots
Nov 18, 2022 (view filing)Nov 16-172 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−39.0K$74.94−$2.92M−25.8%112.1K after5 lots
Nov 18, 2022 (view filing)Nov 16-172 daysPeterffy ThomasChairmanSSaleClass A common stock−35.7K$75.22−$2.69M−1.6%2.18M after2 lots
Nov 22, 2022 (view filing)Nov 18-214 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−39.3K$74.94−$2.95M−35.0%72.8K after4 lots
Nov 22, 2022 (view filing)Nov 18-214 daysPeterffy ThomasChairmanSSaleClass A common stock−34.2K$75.20−$2.57M−1.6%2.15M after3 lots
Nov 25, 2022 (view filing)Nov 223 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−19.6K$76.79−$1.51M−26.9%53.2K after3 lots
Nov 25, 2022 (view filing)Nov 223 daysPeterffy ThomasChairmanSSaleClass A common stock−20.0K$76.79−$1.54M−0.9%2.13M after3 lots
Nov 28, 2022 (view filing)Nov 23-255 daysPeterffy ThomasChairmanSSaleClass A common stock−31.9K$78.35−$2.50M−1.5%2.10M after3 lots
Nov 30, 2022 (view filing)Nov 28-292 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$78.65−$3.15M−1.9%2.06M after3 lots
Dec 2, 2022 (view filing)Nov 30-Dec 12 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$78.91−$3.16M−1.9%2.02M after6 lots
Dec 6, 2022 (view filing)Dec 2-54 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$78.23−$3.13M−2.0%1.98M after3 lots
Dec 8, 2022 (view filing)Dec 6-72 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$77.51−$3.10M−2.0%1.94M after3 lots
Dec 12, 2022 (view filing)Dec 8-94 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$75.94−$3.04M−2.1%1.90M after3 lots
Dec 15, 2022 (view filing)Dec 132 daysPeterffy ThomasChairmanSSaleClass A common stock−400$75.09−$30.0K0.0%1.90M after
Jan 11, 2023 (view filing)Jan 9-102 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$75.79−$3.03M−2.1%1.86M after5 lots
Jan 13, 2023 (view filing)Jan 11-122 daysPeterffy ThomasChairmanSSaleClass A common stock−25.5K$75.56−$1.93M−1.4%1.83M after3 lots
Jan 18, 2023 (view filing)Jan 13-175 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$76.51−$3.06M−2.2%1.79M after5 lots
Jan 20, 2023 (view filing)Jan 18-192 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$79.45−$3.18M−2.2%1.75M after7 lots
Jan 24, 2023 (view filing)Jan 20-234 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$78.79−$3.15M−2.3%1.71M after5 lots
Jan 26, 2023 (view filing)Jan 24-252 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$78.78−$3.15M−2.3%1.67M after4 lots
Jan 30, 2023 (view filing)Jan 26-274 daysPeterffy ThomasChairmanSSaleClass A common stock−40.0K$78.25−$3.13M−2.4%1.63M after5 lots
Apr 24, 2023 (view filing)Apr 204 daysUhde PhilipDirectorSSaleClass A common stock−108.8K$81.77−$8.90M−98.0%2.27K after4 lots
Sep 13, 2023 (view filing)Sep 11-122 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−46.7K$94.39−$4.41M−4.4%1.02M after3 lots10b5-1
Sep 13, 2023 (view filing)Sep 11-122 daysBrody Paul JonathanChief Financial OfficerSSaleClass A common stock−24.9K$94.42−$2.35M−5.0%475.1K after3 lots10b5-1
Sep 15, 2023 (view filing)Sep 13-142 daysBrody Paul JonathanChief Financial OfficerSSaleClass A common stock−23.0K$92.51−$2.13M−4.8%452.1K after4 lots10b5-1
Sep 15, 2023 (view filing)Sep 13-142 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−40.7K$92.50−$3.77M−4.0%974.5K after4 lots10b5-1
Sep 19, 2023 (view filing)Sep 15-184 daysBrody Paul JonathanChief Financial OfficerSSaleClass A common stock−26.3K$91.22−$2.40M−5.8%425.8K after4 lots10b5-1
Sep 19, 2023 (view filing)Sep 15-184 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−52.3K$91.23−$4.77M−5.4%922.1K after4 lots10b5-1
Sep 21, 2023 (view filing)Sep 19-202 daysBrody Paul JonathanChief Financial OfficerSSaleClass A common stock−26.3K$89.62−$2.36M−6.2%399.5K after4 lots10b5-1
Sep 21, 2023 (view filing)Sep 19-202 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−40.5K$89.94−$3.64M−4.4%881.7K after4 lots10b5-1
Sep 25, 2023 (view filing)Sep 21-224 daysBrody Paul JonathanChief Financial OfficerSSaleClass A common stock−26.3K$88.85−$2.33M−6.6%373.2K after5 lots10b5-1
Sep 25, 2023 (view filing)Sep 21-224 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−28.2K$88.94−$2.51M−3.2%853.4K after6 lots10b5-1
Sep 26, 2023 (view filing)Sep 251 dayBrody Paul JonathanChief Financial OfficerSSaleClass A common stock−13.1K$87.79−$1.15M−3.5%360.1K after10b5-1
Sep 26, 2023 (view filing)Sep 251 dayFrank Thomas AJChief Information OfficerSSaleClass A common stock−13.2K$87.80−$1.16M−1.5%840.2K after10b5-1
Sep 28, 2023 (view filing)Sep 26-272 daysBrody Paul JonathanChief Financial OfficerSSaleClass A common stock−26.3K$87.09−$2.29M−7.3%333.8K after5 lots10b5-1
Sep 28, 2023 (view filing)Sep 26-272 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−26.3K$87.11−$2.29M−3.1%814.0K after4 lots10b5-1
Oct 2, 2023 (view filing)Sep 28-294 daysBrody Paul JonathanChief Financial OfficerSSaleClass A common stock−26.3K$87.40−$2.30M−7.9%307.5K after4 lots10b5-1
Oct 2, 2023 (view filing)Sep 28-294 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−26.4K$87.40−$2.31M−3.2%787.6K after4 lots10b5-1
Oct 4, 2023 (view filing)Oct 2-32 daysFrank Thomas AJChief Information OfficerSSaleClass A common stock−26.2K$86.58−$2.27M−3.3%761.4K after4 lots10b5-1