Earl H Nemser insider trades: Interactive Brokers Group (IBKR) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Earl reports to the SEC
Open-market buys and sales
159 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jan 27, 2026 | IBKR | ↓ Sell | 155,000 | $75.84 | $11.8M | by EN Holdings LLC | Jan 28, 2026 (1d) |
| Aug 14, 2025 | IBKR | ↓ Sell | 53,900 | $64.00 | $3.4M | by EN Holdings LLC | Aug 15, 2025 (1d) |
| Aug 13, 2025 | IBKR | ↓ Sell | 201,686 | $67.39 | $13.6M | by EN Holdings LLC | Aug 14, 2025 (1d) |
| Aug 11, 2025 | IBKR | ↓ Sell | 25,682 | $65.88 | $1.7M | by EN Holdings LLC | Aug 12, 2025 (1d) |
| Aug 7, 2025 | IBKR | ↓ Sell | 25,682 | $63.72 | $1.6M | by EN Holdings LLC | Aug 8, 2025 (1d) |
| Aug 5, 2025 | IBKR | ↓ Sell | 25,682 | $64.17 | $1.6M | by EN Holdings LLC | Aug 6, 2025 (1d) |
| Aug 1, 2025 | IBKR | ↓ Sell | 27,482 | $65.28 | $1.8M | by EN Holdings LLC | Aug 4, 2025 (3d) |
| Jul 30, 2025 | IBKR | ↓ Sell | 39,786 | $66.38 | $2.6M | by EN Holdings LLC | Aug 1, 2025 (2d) |
| Jul 28, 2025 | IBKR | ↓ Sell | 100 | $65.90 | $7K | by EN Holdings LLC | Jul 30, 2025 (2d) |
| Feb 22, 2024 | IBKR | ↓ Sell | 10,000 | $105.94 | $1.1M | Direct | Feb 23, 2024 (1d) |
| Feb 16, 2024 | IBKR | ↓ Sell | 15,000 | $104.23 | $1.6M | Direct | Feb 20, 2024 (4d) |
| Feb 14, 2024 | IBKR | ↓ Sell | 75,000 | $101.29 | $7.6M | Direct | Feb 15, 2024 (1d) |
| Feb 5, 2024 | IBKR | ↓ Sell | 100,000 | $96.14 | $9.6M | Direct | Feb 6, 2024 (1d) |
| Oct 2, 2020 | IBKR | ↓ Sell10b5-1 | 41,114 | $48.82 | $2.0M | By EN Holdings LLC | Oct 5, 2020 (3d) |
| Sep 23, 2020 | IBKR | ↓ Sell10b5-1 | 39,500 | $48.57 | $1.9M | By EN Holdings LLC | Sep 24, 2020 (1d) |
| Sep 18, 2020 | IBKR | ↓ Sell10b5-1 | 24,300 | $47.95 | $1.2M | By EN Holdings LLC | Sep 21, 2020 (3d) |
| Sep 16, 2020 | IBKR | ↓ Sell10b5-1 | 20,255 | $47.71 | $966K | By EN Holdings LLC | Sep 17, 2020 (1d) |
| Sep 14, 2020 | IBKR | ↓ Sell10b5-1 | 23,100 | $47.78 | $1.1M | By EN Holdings LLC | Sep 15, 2020 (1d) |
| Sep 10, 2020 | IBKR | ↓ Sell10b5-1 | 9,900 | $48.37 | $479K | By EN Holdings LLC | Sep 11, 2020 (1d) |
| Sep 8, 2020 | IBKR | ↓ Sell10b5-1 | 53,627 | $50.49 | $2.7M | By EN Holdings LLC | Sep 9, 2020 (1d) |
| Sep 3, 2020 | IBKR | ↓ Sell10b5-1 | 99,297 | $53.02 | $5.3M | By EN Holdings LLC | Sep 4, 2020 (1d) |
| Sep 1, 2020 | IBKR | ↓ Sell10b5-1 | 115,103 | $53.19 | $6.1M | By EN Holdings LLC | Sep 2, 2020 (1d) |
| Aug 28, 2020 | IBKR | ↓ Sell10b5-1 | 330,954 | $53.14 | $17.6M | By EN Holdings LLC | Aug 31, 2020 (3d) |
| Aug 26, 2020 | IBKR | ↓ Sell10b5-1 | 156,869 | $52.60 | $8.3M | By EN Holdings LLC | Aug 27, 2020 (1d) |
| Aug 25, 2020 | IBKR | ↓ Sell10b5-1 | 85,981 | $51.94 | $4.5M | By EN Holdings LLC | Aug 26, 2020 (1d) |
| Jan 22, 2018 | IBKR | ↓ Sell | 32,000 | $62.80 | $2.0M | Direct | Jan 24, 2018 (2d) |
| Oct 26, 2017 | IBKR | ↓ Sell10b5-1 | 20 | $52.41 | $1K | By IBG Holdings LLC | Oct 30, 2017 (4d) |
| Oct 26, 2017 | IBKR | ↓ Sell10b5-1 | 1,290 | $51.34 | $66K | By IBG Holdings LLC | Oct 27, 2017 (1d) |
| Oct 24, 2017 | IBKR | ↓ Sell10b5-1 | 1,683 | $50.58 | $85K | By IBG Holdings LLC | Oct 25, 2017 (1d) |
| Oct 24, 2017 | IBKR | ↓ Sell | 1,000 | $51.27 | $51K | Direct | Oct 25, 2017 (1d) |
| Oct 20, 2017 | IBKR | ↓ Sell10b5-1 | 1,683 | $49.37 | $83K | By IBG Holdings LLC | Oct 23, 2017 (3d) |
| Oct 18, 2017 | IBKR | ↓ Sell10b5-1 | 1,683 | $48.65 | $82K | By IBG Holdings LLC | Oct 19, 2017 (1d) |
| Oct 16, 2017 | IBKR | ↓ Sell10b5-1 | 1,675 | $47.56 | $80K | By IBG Holdings LLC | Oct 17, 2017 (1d) |
| Oct 12, 2017 | IBKR | ↓ Sell10b5-1 | 1,608 | $47.78 | $77K | By IBG Holdings LLC | Oct 13, 2017 (1d) |
| Oct 10, 2017 | IBKR | ↓ Sell10b5-1 | 1,658 | $47.42 | $79K | By IBG Holdings LLC | Oct 11, 2017 (1d) |
| Oct 6, 2017 | IBKR | ↓ Sell10b5-1 | 1,649 | $47.52 | $78K | By IBG Holdings LLC | Oct 10, 2017 (4d) |
| Oct 4, 2017 | IBKR | ↓ Sell10b5-1 | 1,623 | $47.12 | $76K | By IBG Holdings LLC | Oct 5, 2017 (1d) |
| Oct 2, 2017 | IBKR | ↓ Sell10b5-1 | 1,683 | $45.26 | $76K | By IBG Holdings LLC | Oct 3, 2017 (1d) |
| Sep 28, 2017 | IBKR | ↓ Sell10b5-1 | 1,632 | $44.52 | $73K | By IBG Holdings LLC | Sep 29, 2017 (1d) |
| Sep 26, 2017 | IBKR | ↓ Sell10b5-1 | 1,590 | $43.91 | $70K | By IBG Holdings LLC | Sep 27, 2017 (1d) |
| Sep 22, 2017 | IBKR | ↓ Sell10b5-1 | 1,623 | $43.59 | $71K | By IBG Holdings LLC | Sep 25, 2017 (3d) |
| Sep 20, 2017 | IBKR | ↓ Sell10b5-1 | 1,624 | $43.42 | $71K | By IBG Holdings LLC | Sep 21, 2017 (1d) |
| Sep 18, 2017 | IBKR | ↓ Sell10b5-1 | 1,683 | $42.29 | $71K | By IBG Holdings LLC | Sep 19, 2017 (1d) |
| Sep 14, 2017 | IBKR | ↓ Sell10b5-1 | 1,666 | $41.94 | $70K | By IBG Holdings LLC | Sep 15, 2017 (1d) |
| Sep 12, 2017 | IBKR | ↓ Sell10b5-1 | 1,683 | $41.90 | $71K | By IBG Holdings LLC | Sep 13, 2017 (1d) |
| Sep 12, 2017 | IBKR | ↓ Sell10b5-1 | 1,683 | $41.90 | $71K | By IBG Holdings LLC | Sep 13, 2017 (1d) |
| Sep 8, 2017 | IBKR | ↓ Sell10b5-1 | 1,623 | $41.40 | $67K | By IBG Holdings LLC | Sep 11, 2017 (3d) |
| Sep 6, 2017 | IBKR | ↓ Sell10b5-1 | 1,675 | $41.86 | $70K | By IBG Holdings LLC | Sep 7, 2017 (1d) |
| Sep 1, 2017 | IBKR | ↓ Sell10b5-1 | 1,666 | $41.84 | $70K | By IBG Holdings LLC | Sep 5, 2017 (4d) |
| Aug 30, 2017 | IBKR | ↓ Sell10b5-1 | 1,623 | $41.64 | $68K | By IBG Holdings LLC | Aug 31, 2017 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other IBKR insiders
Open-market trades in the last 12 months
About Earl H Nemser's insider trades
Earl H Nemser is Vice Chairman at Interactive Brokers Group (IBKR). Since Nov 20, 2013, Earl has reported no open-market purchases and 159 sales worth $131.8M on SEC Form 4. In the last 12 months: 1 sale ($11.8M).
143 sales (54% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include grants and awards (30 filings), shares withheld for taxes (17 filings), gifts (3 filings), other transactions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every IBKR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.