Earl H. Nemser
Vice Chairman at Interactive Brokers Group Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Interactive Brokers Group Inc., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Interactive Brokers Group Inc. April 23, 202686.5%
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Interactive Brokers Group Inc. April 17, 202591.9%
-
Interactive Brokers Group Inc. April 18, 202489.8%
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Interactive Brokers Group Inc. April 20, 202389.7%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jul 31, 2026 | Interactive Brokers Group Inc. | Grant or award | +803,568 | $87.99 | $70,705,948 |
| May 8, 2026 | Interactive Brokers Group Inc. | Shares withheld for tax | −22,486 | $84.42 | $1,898,268 |
| Jan 27, 2026 | Interactive Brokers Group Inc. | Open-market sale | −39,731 | $75.07 | $2,982,606 |
| Jan 27, 2026 | Interactive Brokers Group Inc. | Open-market sale | −20,469 | $75.75 | $1,550,527 |
| Jan 26, 2026 | Interactive Brokers Group Inc. | Open-market sale | −60,882 | $75.83 | $4,616,682 |
| Jan 26, 2026 | Interactive Brokers Group Inc. | Open-market sale | −30,817 | $76.72 | $2,364,280 |
| Jan 26, 2026 | Interactive Brokers Group Inc. | Open-market sale | −3,101 | $77.98 | $241,816 |
| Jan 23, 2026 | Interactive Brokers Group Inc. | Open-market sale | −84,935 | $77.65 | $6,595,203 |
| Jan 23, 2026 | Interactive Brokers Group Inc. | Open-market sale | −60,065 | $78.14 | $4,693,479 |
| Jan 22, 2026 | Interactive Brokers Group Inc. | Open-market sale | −100,000 | $76.81 | $7,681,000 |
| Jan 1, 2026 | Interactive Brokers Group Inc. | Grant or award | +389 | $64.31 | $25,017 |
| Dec 31, 2025 | Interactive Brokers Group Inc. | Grant or award | +23,240 | — | — |
| Dec 31, 2025 | Interactive Brokers Group Inc. | Grant or award | +389 | $64.31 | $25,017 |
| Aug 14, 2025 | Interactive Brokers Group Inc. | Open-market sale | −33,379 | $63.86 | $2,131,583 |
| Aug 14, 2025 | Interactive Brokers Group Inc. | Open-market sale | −20,521 | $64.22 | $1,317,859 |
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