IBKR
Interactive Brokers Group, Inc.
Interactive Brokers Group, Inc. insider trading
Every time one of IBKR's executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.
SEC Form 4 data, Q3 2024 to Q2 2026
IBKR insider trading by quarter
Between Jul 01, 2024 and Jun 30, 2026, 5 insiders traded IBKR on the open market: 7 purchases worth $67.3K and 78 sales worth $126.3M, 63 of the sales pre-scheduled under a 10b5-1 plan. In the last four quarters alone: 6 purchases ($37.6K) and 78 sales ($126.3M), by 5 insiders.
| Quarter | Bought | Sold | Insiders |
|---|---|---|---|
| Q2 2026 | +$5.9K3 buys | −$2M1 sale | |
| Q1 2026 | +$5.4K2 buys | −$30.7M8 sales | |
| Q4 2025 | +$26.4K1 buy | −$3.8M5 sales | |
| Q3 2025 | — | −$89.8M64 sales · 63 on a plan | |
| Q2 2025 | — | — | |
| Q1 2025 | +$29.6K1 buy | — | |
| Q4 2024 | — | — | |
| Q3 2024 | — | — |
- Largest purchase
- +$29.6K of IBKR by Bright Jill (Director) on Jan 31, 2025.
- Largest sale
- −$10.3M of IBKR by Nemser Earl H (Vice Chairman · Director) on Aug 12, 2025, under a 10b5-1 plan.
Open-market transactions through Jun 30, 2026most recent first
Conkling Lori A10b5-1
Director
+$2.2K
Jun 01, 2026
25 sh · $86.10
Conkling Lori A10b5-1
Director
+$2K
May 01, 2026
25 sh · $79.64
Harris Lawrence E
Director
−$2M
Apr 28, 2026
26,000 sh · $76.93
Conkling Lori A10b5-1
Director
+$1.7K
Apr 01, 2026
25 sh · $68.38
Conkling Lori A10b5-1
Director
+$1.7K
Mar 02, 2026
25 sh · $69.21
Conkling Lori A10b5-1
Director
+$3.7K
Feb 25, 2026
50 sh · $73.21
Nemser Earl H
Vice Chairman · Director
−$3M
Jan 27, 2026
39,731 sh · $75.07
Nemser Earl H
Vice Chairman · Director
−$1.6M
Jan 27, 2026
20,469 sh · $75.75
Nemser Earl H
Vice Chairman · Director
−$4.6M
Jan 26, 2026
60,882 sh · $75.83
Nemser Earl H
Vice Chairman · Director
−$2.4M
Jan 26, 2026
30,817 sh · $76.72
Nemser Earl H
Vice Chairman · Director
−$241.8K
Jan 26, 2026
3,101 sh · $77.98
Nemser Earl H
Vice Chairman · Director
−$6.6M
Jan 23, 2026
84,935 sh · $77.65
Nemser Earl H
Vice Chairman · Director
−$4.7M
Jan 23, 2026
60,065 sh · $78.14
Nemser Earl H
Vice Chairman · Director
−$7.7M
Jan 22, 2026
100,000 sh · $76.81
Harris Lawrence E
Director
−$734.5K
Oct 29, 2025
10,645 sh · $69.00
| Date | Insider | Shares | Price | Value |
|---|---|---|---|---|
| Jun 01, 2026 | Conkling Lori A10b5-1Director | 25 | $86.10 | +$2.2K |
| May 01, 2026 | Conkling Lori A10b5-1Director | 25 | $79.64 | +$2K |
| Apr 28, 2026 | Harris Lawrence EDirector | 26,000 | $76.93 | −$2M |
| Apr 01, 2026 | Conkling Lori A10b5-1Director | 25 | $68.38 | +$1.7K |
| Mar 02, 2026 | Conkling Lori A10b5-1Director | 25 | $69.21 | +$1.7K |
| Feb 25, 2026 | Conkling Lori A10b5-1Director | 50 | $73.21 | +$3.7K |
| Jan 27, 2026 | Nemser Earl HVice Chairman · Director | 39,731 | $75.07 | −$3M |
| Jan 27, 2026 | Nemser Earl HVice Chairman · Director | 20,469 | $75.75 | −$1.6M |
| Jan 26, 2026 | Nemser Earl HVice Chairman · Director | 60,882 | $75.83 | −$4.6M |
| Jan 26, 2026 | Nemser Earl HVice Chairman · Director | 30,817 | $76.72 | −$2.4M |
| Jan 26, 2026 | Nemser Earl HVice Chairman · Director | 3,101 | $77.98 | −$241.8K |
| Jan 23, 2026 | Nemser Earl HVice Chairman · Director | 84,935 | $77.65 | −$6.6M |
| Jan 23, 2026 | Nemser Earl HVice Chairman · Director | 60,065 | $78.14 | −$4.7M |
| Jan 22, 2026 | Nemser Earl HVice Chairman · Director | 100,000 | $76.81 | −$7.7M |
| Oct 29, 2025 | Harris Lawrence EDirector | 10,645 | $69.00 | −$734.5K |
From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.
After insiders bought IBKR
What the stock actually did in the 90 days following each open-market purchase
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How to read IBKR insider activity
- Open-market purchase (code P)
- An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
- Grants and option exercises (codes A, M)
- Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
- Cluster buy
- Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.
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Questions
- How much IBKR stock have insiders bought and sold in the last two years?
- Between Jul 01, 2024 and Jun 30, 2026, 5 Interactive Brokers Group, Inc. insiders made 7 open-market purchases worth $67.3K and 78 sales worth $126.3M. 63 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: 6 purchases ($37.6K) and 78 sales ($126.3M). The largest purchase was Bright Jill buying $29.6K on Jan 31, 2025. The largest sale was Nemser Earl H selling $10.3M on Aug 12, 2025.
- Where does IBKR insider trading data come from?
- From the Form 4 filings Interactive Brokers Group, Inc.'s officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.
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