Earl H Nemser Insider Trading Activity
Earl H Nemser has been net-selling over the last 12 months with 0 purchases and 34 sales across 1 company.
IBKR is the most-traded position with 34 trades. The largest single transaction was a sale of IBKR for $10.3M on Aug 12, 2025.
Performance Scorecard
Forward stock performance after each transaction by Earl H Nemser. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | +3.9% | 94% | 34 |
| 90 days | — | -6.6% | 9% | 34 |
| 120 days | — | -1.5% | 44% | 34 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersIBKR · Interactive Brokers Group, Inc.
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| Jan 27, 2026 | IBKR | Sell | 39,731 | $75.07 | $3.0M | Vice Chairman |
| Jan 27, 2026 | IBKR | Sell | 20,469 | $75.75 | $1.6M | Vice Chairman |
| Jan 26, 2026 | IBKR | Sell | 60,882 | $75.83 | $4.6M | Vice Chairman |
| Jan 26, 2026 | IBKR | Sell | 30,817 | $76.72 | $2.4M | Vice Chairman |
| Jan 26, 2026 | IBKR | Sell | 3,101 | $77.98 | $242K | Vice Chairman |
| Jan 23, 2026 | IBKR | Sell | 60,065 | $78.14 | $4.7M | Vice Chairman |
| Jan 23, 2026 | IBKR | Sell | 84,935 | $77.65 | $6.6M | Vice Chairman |
| Jan 22, 2026 | IBKR | Sell | 100,000 | $76.81 | $7.7M | Vice Chairman |
| Aug 14, 2025 | IBKR | Sell | 33,379 | $63.86 | $2.1M | Vice Chairman |
| Aug 14, 2025 | IBKR | Sell | 20,521 | $64.22 | $1.3M | Vice Chairman |
| Aug 13, 2025 | IBKR | Sell | 2,400 | $66.77 | $160K | Vice Chairman |
| Aug 13, 2025 | IBKR | Sell | 4,600 | $63.75 | $293K | Vice Chairman |
| Aug 13, 2025 | IBKR | Sell | 200 | $64.19 | $13K | Vice Chairman |
| Aug 12, 2025 | IBKR | Sell | 41,086 | $67.88 | $2.8M | Vice Chairman |
| Aug 12, 2025 | IBKR | Sell | 153,000 | $67.39 | $10.3M | Vice Chairman |
| Aug 11, 2025 | IBKR | Sell | 12,841 | $66.09 | $849K | Vice Chairman |
| Aug 8, 2025 | IBKR | Sell | 2,641 | $65.94 | $174K | Vice Chairman |
| Aug 8, 2025 | IBKR | Sell | 10,200 | $65.60 | $669K | Vice Chairman |
| Aug 7, 2025 | IBKR | Sell | 12,400 | $63.94 | $793K | Vice Chairman |
| Aug 7, 2025 | IBKR | Sell | 441 | $64.35 | $28K | Vice Chairman |
| Aug 6, 2025 | IBKR | Sell | 12,641 | $63.47 | $802K | Vice Chairman |
| Aug 6, 2025 | IBKR | Sell | 200 | $64.16 | $13K | Vice Chairman |
| Aug 5, 2025 | IBKR | Sell | 1,800 | $64.84 | $117K | Vice Chairman |
| Aug 5, 2025 | IBKR | Sell | 11,041 | $63.64 | $703K | Vice Chairman |
| Aug 4, 2025 | IBKR | Sell | 12,841 | $64.54 | $829K | Vice Chairman |
| Aug 1, 2025 | IBKR | Sell | 7,441 | $63.94 | $476K | Vice Chairman |
| Aug 1, 2025 | IBKR | Sell | 1,000 | $65.66 | $66K | Vice Chairman |
| Aug 1, 2025 | IBKR | Sell | 1,200 | $62.79 | $75K | Vice Chairman |
| Aug 1, 2025 | IBKR | Sell | 3,200 | $64.71 | $207K | Vice Chairman |
| Jul 31, 2025 | IBKR | Sell | 12,441 | $66.18 | $823K | Vice Chairman |
| Jul 31, 2025 | IBKR | Sell | 2,200 | $66.71 | $147K | Vice Chairman |
| Jul 30, 2025 | IBKR | Sell | 32,386 | $66.32 | $2.1M | Vice Chairman |
| Jul 30, 2025 | IBKR | Sell | 7,400 | $66.64 | $493K | Vice Chairman |
| Jul 28, 2025 | IBKR | Sell | 100 | $65.90 | $7K | Vice Chairman |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| IBKR | Interactive Brokers Group, Inc. | 34 | $57.2M |
Other insiders at Interactive Brokers Group, Inc.
3 other tracked filers at IBKR.