MetaCap

Interactive Brokers Group Insider Trades

NASDAQ: IBKRFinanceInvestment Bankers/Brokers/ServiceUSD

87.67+1.19 (+1.38%)

Market open · Delayed 15 min · as of Oct 9, 11:27 AM ET

Last 12 months

Purchases
9 · $20.12K
Sales
12 · $34.46M
Shares bought / sold
250 / 451.00K
Net activity
Net selling $34.4 million

Interactive Brokers Group insider activity

Over the last 12 months, Interactive Brokers Group insiders reported 53 transactions on SEC Form 4: 9 open-market purchases and 12 sales. Insiders bought $20,119 and sold $34.5 million worth of stock, for net insider selling of $34.4 million. The largest seller was Nemser Earl H, with $30.7 million in reported sales.

The most recent filing shows Conkling Lori A (Director) buying 25 shares at $85.42 on Oct 1, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put IBKR's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

IBKR insider transactions

Interactive Brokers Group insider transactions
DateInsiderTypeSharesValueFiling
Oct 1, 2026Conkling Lori ADirectorBuy25$2.14KForm 4
Sep 1, 2026Conkling Lori ADirectorBuy25$2.36KForm 4
Aug 3, 2026Conkling Lori ADirectorBuy25$2.18KForm 4
Jul 31, 2026Nemser Earl HVice ChairmanAward803,568$70.71MForm 4
Jul 1, 2026Conkling Lori ADirectorBuy25$2.20KForm 4
Jun 1, 2026Conkling Lori ADirectorBuy25$2.15KForm 4
May 8, 2026Frank Thomas AJExecutive Vice PresidentTax withholding31,730$2.68MForm 4
May 8, 2026Mendonca DenisChief Accounting OfficerTax withholding11,157$941.87KForm 4
May 8, 2026Nemser Earl HVice ChairmanTax withholding22,486$1.90MForm 4
May 8, 2026Galik MilanChief Executive OfficerTax withholding255,039$21.53MForm 4
May 8, 2026Brody Paul JonathanChief Financial OfficerTax withholding82,920$7.00MForm 4
May 1, 2026Conkling Lori ADirectorBuy25$1.99KForm 4
Apr 28, 2026Harris Lawrence EDirectorSale26,000$2.00MForm 4
Apr 1, 2026Conkling Lori ADirectorBuy25$1.71KForm 4
Mar 2, 2026Conkling Lori ADirectorBuy25$1.73KForm 4
Feb 25, 2026Conkling Lori ADirectorBuy50$3.66KForm 4
Jan 27, 2026Nemser Earl HVice ChairmanSale20,469$1.55MForm 4
Jan 27, 2026Nemser Earl HVice ChairmanSale39,731$2.98MForm 4
Jan 26, 2026Nemser Earl HVice ChairmanSale3,101$241.82KForm 4
Jan 26, 2026Nemser Earl HVice ChairmanSale30,817$2.36MForm 4
Jan 26, 2026Nemser Earl HVice ChairmanSale60,882$4.62MForm 4
Jan 23, 2026Nemser Earl HVice ChairmanSale60,065$4.69MForm 4
Jan 23, 2026Nemser Earl HVice ChairmanSale84,935$6.60MForm 4
Jan 22, 2026Nemser Earl HVice ChairmanSale100,000$7.68MForm 4
Jan 1, 2026Yuen NicoleDirectorAward389$25.02KForm 4
Jan 1, 2026Galik MilanChief Executive OfficerAward389$25.02KForm 4
Jan 1, 2026Bright JillDirectorAward389$25.02KForm 4
Jan 1, 2026Repetto Richard HDirectorAward389$25.02KForm 4
Jan 1, 2026Conkling Lori ADirectorAward389$25.02KForm 4
Jan 1, 2026Harris Lawrence EDirectorAward389$25.02KForm 4
Jan 1, 2026Brody Paul JonathanChief Financial OfficerAward389$25.02KForm 4
Jan 1, 2026Nemser Earl HVice ChairmanAward389$25.02KForm 4
Jan 1, 2026Peterffy WilliamDirectorAward389$25.02KForm 4
Dec 31, 2025Peterffy WilliamDirectorAward389$25.02KForm 4
Dec 31, 2025Yuen NicoleDirectorAward389$25.02KForm 4
Dec 31, 2025Conkling Lori ADirectorAward389$25.02KForm 4
Dec 31, 2025Conkling Lori ADirectorAward1,167—Form 4
Dec 31, 2025Frank Thomas AJExecutive Vice PresidentAward13,944—Form 4
Dec 31, 2025Nemser Earl HVice ChairmanAward389$25.02KForm 4
Dec 31, 2025Nemser Earl HVice ChairmanAward23,240—Form 4
Dec 31, 2025Repetto Richard HDirectorAward389$25.02KForm 4
Dec 31, 2025Mendonca DenisChief Accounting OfficerAward11,156—Form 4
Dec 31, 2025Bright JillDirectorAward389$25.02KForm 4
Dec 31, 2025Harris Lawrence EDirectorAward389$25.02KForm 4
Dec 31, 2025Galik MilanChief Executive OfficerAward389$25.02KForm 4
Dec 31, 2025Galik MilanChief Executive OfficerAward224,650—Form 4
Dec 31, 2025Brody Paul JonathanChief Financial OfficerAward389$25.02KForm 4
Dec 31, 2025Brody Paul JonathanChief Financial OfficerAward53,452—Form 4
Dec 31, 2025Conkling Lori ADirectorAward389—Form 4
Dec 29, 2025Galik MilanChief Executive Officerother895,688—Form 4
Oct 29, 2025Harris Lawrence EDirectorSale10,645$734.50KForm 4
Oct 28, 2025Harris Lawrence EDirectorSale6,855$474.02KForm 4
Oct 27, 2025Harris Lawrence EDirectorSale7,500$522.98KForm 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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