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.
-
Interactive Brokers Group Inc. April 23, 202686.5%
-
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 |
Questions about Earl H. Nemser
What boards is Earl H. Nemser on?
Earl H. Nemser sits on the board of Interactive Brokers Group Inc.
How long has Earl H. Nemser served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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