Interactive Brokers Group, Inc (IBKR) insider trading
Every open-market stock purchase and sale by Interactive Brokers Group, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Lori A Conkling (Insider) bought $4.5K in the last 90 days.
Last 12 months: insiders bought $44.4K (8 buys) and sold $36.5M (6 sales). Last close $92.95 on Sep 3, 2026.
Recent IBKR insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 1, 2026 | Lori A Conkling (Insider) | Bought | $2.4K |
| Aug 3, 2026 | Lori A Conkling (Insider) | Bought | $2.2K |
| Jul 31, 2026 | Earl H Nemser (Chair) | Bought (not open market) | $70.7M |
| Jul 1, 2026 | Lori A Conkling (Insider) | Bought | $2.2K |
| Jun 1, 2026 | Lori A Conkling (Insider) | Bought | $2.2K |
| May 8, 2026 | Milan Galik (CEO) | Sold (not open market) | $21.5M |
| May 8, 2026 | Paul Jonathan Brody (CFO) | Sold (not open market) | $7M |
| May 8, 2026 | Thomas AJ Frank (President) | Sold (not open market) | $2.7M |
| May 8, 2026 | Earl H Nemser (Chair) | Sold (not open market) | $1.9M |
| May 8, 2026 | Denis Mendonca (C-suite exec) | Sold (not open market) | $942K |
| May 1, 2026 | Lori A Conkling (Insider) | Bought | $2K |
| Apr 28, 2026 | Lawrence E Harris (Insider) | Sold | $2M |
| Apr 1, 2026 | Lori A Conkling (Insider) | Bought | $1.7K |
| Mar 2, 2026 | Lori A Conkling (Insider) | Bought | $1.7K |
| Feb 25, 2026 | Lori A Conkling (Insider) | Bought | $3.7K |
| Jan 27, 2026 | Earl H Nemser (Chair) | Sold | $3M |
| Jan 27, 2026 | Earl H Nemser (Chair) | Sold | $1.6M |
| Jan 26, 2026 | Earl H Nemser (Chair) | Sold | $4.6M |
| Jan 26, 2026 | Earl H Nemser (Chair) | Sold | $2.4M |
| Jan 26, 2026 | Earl H Nemser (Chair) | Sold | $242K |
| Jan 23, 2026 | Earl H Nemser (Chair) | Sold | $6.6M |
| Jan 23, 2026 | Earl H Nemser (Chair) | Sold | $4.7M |
| Jan 22, 2026 | Earl H Nemser (Chair) | Sold | $7.7M |
| Jan 1, 2026 | William Peterffy (Insider) | Bought (not open market) | $25K |
| Jan 1, 2026 | Milan Galik (CEO) | Bought (not open market) | $25K |
Who's trading IBKR
- Lori A Conkling, Insider: bought $18K (8 buys), last Sep 1, 2026
- Earl H Nemser, Chair: sold $30.7M (8 sales), last Jul 31, 2026
- Milan Galik, CEO: other filings, last May 8, 2026
- Thomas AJ Frank, C-suite exec: other filings, last May 8, 2026
- Paul Jonathan Brody, CFO: other filings, last May 8, 2026
- Denis Mendonca, C-suite exec: other filings, last May 8, 2026
- Lawrence E Harris, Insider: sold $5.8M (6 sales), last Apr 28, 2026
- Nicole Yuen, Insider: other filings, last Jan 1, 2026
- Richard H Repetto, Insider: other filings, last Jan 1, 2026
- Jill Bright, Insider: bought $26.4K (1 buy), last Jan 1, 2026
- William Peterffy, Insider: other filings, last Jan 1, 2026
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