Form4insider filings, from the source

Company · CIK 0001381197 · SIC 6211 — Security Brokers, Dealers & Flotation Companies · Nasdaq

Interactive Brokers Group, Inc. · IBKR

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $6,740 · 3sales $0 · 0net $6,740
$10k$10k$100k$100k$1M$1MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 12Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 PForm 4 →Sep 2, 4:01 pm EDTLori A ConklingDirector25$94.53$2,3632,559+0.99%10b5-1
Aug 3, 2026 PForm 4 →Aug 4, 4:01 pm EDTLori A ConklingDirector25$87.03$2,1762,534+1.00%10b5-1
Jul 31, 2026 AForm 4 →Aug 4, 4:27 pm EDTEarl H NemserVice Chairman, Director803,568$87.99$70,705,948803,568—
Jul 1, 2026 PForm 4 →Jul 1, 4:01 pm EDTLori A ConklingDirector25$88.03$2,2012,509+1.01%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.