Earl H. Nemser serves as Executive at Interactive Brokers Group, Inc., where they oversee executive responsibilities. Since joining the company, Earl H. Nemser has executed 434 insider transactions totaling $118.4M, demonstrating a bearish approach to their equity position. Their most recent transaction on Aug 14, 2025 involved selling 33,379 shares valued at $2.1M.
Earl H. Nemser currently holds 420,521 shares of Interactive Brokers Group, Inc. (IBKR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Earl H. Nemser has been a net seller of IBKR stock. They have purchased $0 and sold $118.4M worth of shares.
Earl H. Nemser's most recent insider trade was on Aug 14, 2025, when they sold 33,379 shares at $63.86 per share.
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| $64.22 |
| Discretionary |
| Aug 13, 2025 | IBKR | $293.3K | Sale | 4,600 | $63.75 | Discretionary |
| Aug 13, 2025 | IBKR | $12.8K | Sale | 200 | $64.19 | Discretionary |
| Aug 13, 2025 | IBKR | $13.2K | Sale | 200 | $66.09 | Discretionary |
| Aug 13, 2025 | IBKR | $13.4K | Sale | 200 | $67.20 | Discretionary |
| Aug 13, 2025 | IBKR | $160.2K | Sale | 2,400 | $66.77 | Discretionary |
| Aug 12, 2025 | IBKR | $2.8M | Sale | 41,086 | $67.88 | Discretionary |
| Aug 12, 2025 | IBKR | $10.3M | Sale | 153,000 | $67.39 | Discretionary |
| Aug 7, 2025 | IBKR | $28.4K | Sale | 441 | $64.35 | Discretionary |
| Aug 7, 2025 | IBKR | $792.9K | Sale | 12,400 | $63.94 | Discretionary |
| Aug 6, 2025 | IBKR | $802.3K | Sale | 12,641 | $63.47 | Discretionary |
| Aug 6, 2025 | IBKR | $12.8K | Sale | 200 | $64.16 | Discretionary |
| Aug 5, 2025 | IBKR | $702.6K | Sale | 11,041 | $63.64 | Discretionary |
| Aug 5, 2025 | IBKR | $116.7K | Sale | 1,800 | $64.84 | Discretionary |
| Aug 4, 2025 | IBKR | $828.8K | Sale | 12,841 | $64.54 | Discretionary |
| Aug 1, 2025 | IBKR | $75.3K | Sale | 1,200 | $62.79 | Discretionary |
| Aug 1, 2025 | IBKR | $207.1K | Sale | 3,200 | $64.71 | Discretionary |
| Aug 1, 2025 | IBKR | $475.8K | Sale | 7,441 | $63.94 | Discretionary |
| Aug 1, 2025 | IBKR | $65.7K | Sale | 1,000 | $65.66 | Discretionary |
| Jul 31, 2025 | IBKR | $823.3K | Sale | 12,441 | $66.18 | Discretionary |
| Jul 31, 2025 | IBKR | $146.8K | Sale | 2,200 | $66.71 | Discretionary |
| Jul 30, 2025 | IBKR | $26.5M | Award | 400,000 | $66.22 | Discretionary |
| Jul 30, 2025 | IBKR | $2.1M | Sale | 32,386 | $66.32 | Discretionary |
| Jul 30, 2025 | IBKR | $493.1K | Sale | 7,400 | $66.64 | Discretionary |
| Jul 28, 2025 | IBKR | $6.6K | Sale | 100 | $65.90 | Discretionary |
| Jul 25, 2024 | IBKR | $11.9M | Award | 100,000 | $118.57 | Discretionary |
| May 9, 2024 | IBKR | $526.4K | Payment | 4,419 | $119.13 | Discretionary |
| Feb 22, 2024 | IBKR | $535.0K | Sale | 5,000 | $107.01 | Planned |
| Feb 21, 2024 | IBKR | $524.3K | Sale | 5,000 | $104.86 | Planned |