Interactive Brokers (IBKR) — insider trading
Financials · NASDAQ
Interactive Brokers (IBKR) has 17 reported SEC Form 4 insider transactions in our data, including 6 open-market purchases and 6 open-market sales among the most recent 17 (latest 2026-07-01).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-07-01 | Conkling Lori A | Director | Open-market purchase | 25 | $88.03 | $2.2K | Form 4 |
| 2026-06-01 | Conkling Lori A | Director | Open-market purchase | 25 | $86.10 | $2.2K | Form 4 |
| 2026-05-08 | Nemser Earl H | Director, Officer (Vice Chairman) | Shares withheld for taxes / exercise cost | 22,486 | $84.42 | $1.90M | Form 4 |
| 2026-05-08 | Frank Thomas AJ | Officer (Executive Vice President) | Shares withheld for taxes / exercise cost | 31,730 | $84.42 | $2.68M | Form 4 |
| 2026-05-08 | Galik Milan | Director, Officer (Chief Executive Officer) | Shares withheld for taxes / exercise cost | 255,039 | $84.42 | $21.53M | Form 4 |
| 2026-05-08 | Mendonca Denis | Officer (Chief Accounting Officer) | Shares withheld for taxes / exercise cost | 11,157 | $84.42 | $941.9K | Form 4 |
| 2026-05-08 | Brody Paul Jonathan | Director, Officer (Chief Financial Officer) | Shares withheld for taxes / exercise cost | 82,920 | $84.42 | $7.00M | Form 4 |
| 2026-05-01 | Conkling Lori A | Director | Open-market purchase | 25 | $79.64 | $2.0K | Form 4 |
| 2026-04-28 | Harris Lawrence E | Director | Open-market sale | 26,000 | $76.93 | $2.00M | Form 4 |
| 2026-04-01 | Conkling Lori A | Director | Open-market purchase | 25 | $68.38 | $1.7K | Form 4 |
| 2026-03-02 | Conkling Lori A | Director | Open-market purchase | 25 | $69.21 | $1.7K | Form 4 |
| 2026-02-25 | Conkling Lori A | Director | Open-market purchase | 50 | $73.21 | $3.7K | Form 4 |
| 2026-01-27 | Nemser Earl H | Director, Officer (Vice Chairman) | Open-market sale | 20,469 | $75.75 | $1.55M | Form 4 |
| 2026-01-27 | Nemser Earl H | Director, Officer (Vice Chairman) | Open-market sale | 39,731 | $75.07 | $2.98M | Form 4 |
| 2026-01-26 | Nemser Earl H | Director, Officer (Vice Chairman) | Open-market sale | 3,101 | $77.98 | $241.8K | Form 4 |
| 2026-01-26 | Nemser Earl H | Director, Officer (Vice Chairman) | Open-market sale | 30,817 | $76.72 | $2.36M | Form 4 |
| 2026-01-26 | Nemser Earl H | Director, Officer (Vice Chairman) | Open-market sale | 60,882 | $75.83 | $4.62M | Form 4 |
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Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: Interactive Brokers (IBKR).
Last updated 2026-07-01 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.