Nemser Earl H
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Nemser Earl H. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| IBKR | Vice Chairman | Sale | 33,379 | $63.86 | $2,131,583 | Aug 14, 2025 |
| IBKR | Vice Chairman | Sale | 41,086 | $67.88 | $2,788,918 | Aug 12, 2025 |
| IBKR | Vice Chairman | Sale | 10,200 | $65.60 | $669,120 | Aug 11, 2025 |
| IBKR | Vice Chairman | Sale | 441 | $64.35 | $28,378 | Aug 7, 2025 |
| IBKR | Vice Chairman | Sale | 11,041 | $63.64 | $702,649 | Aug 5, 2025 |
| IBKR | Vice Chairman | Sale | 1,200 | $62.79 | $75,348 | Jul 31, 2025 |
| IBKR | Vice Chairman | Award / Grant | 400,000 | $66.22 | $26,488,000 | Jul 30, 2025 |
| IBKR | Vice Chairman | Sale | 32,386 | $66.32 | $2,147,840 | Jul 30, 2025 |
| IBKR | Vice Chairman | Sale | 100 | $65.90 | $6,590 | Jul 28, 2025 |
| IBKR | Vice Chairman | Gift | 500 | — | — | Jun 23, 2025 |
| IBKR | Vice Chairman | Tax Withholding | 5,178 | $185.60 | $961,037 | May 9, 2025 |
| IBKR | Vice Chairman | Tax Withholding | 5,178 | $185.60 | $961,037 | May 9, 2025 |
| IBKR | Vice Chairman | Award / Grant | 7,763 | — | — | Dec 31, 2024 |
| IBKR | Vice Chairman | Award / Grant | 100,000 | $118.57 | $11,857,000 | Jul 25, 2024 |
| IBKR | Vice Chairman | Tax Withholding | 4,419 | $119.13 | $526,435 | May 9, 2024 |
| IBKR | Vice Chairman | Sale | 5,000 | $107.01 | $535,050 | Feb 21, 2024 |
| IBKR | Vice Chairman | Sale | 2,100 | $102.02 | $214,242 | Feb 16, 2024 |
| IBKR | Vice Chairman | Sale | 20,809 | $100.73 | $2,096,091 | Feb 13, 2024 |
| IBKR | Vice Chairman | Sale | 24,547 | $95.67 | $2,348,411 | Feb 5, 2024 |
| IBKR | Vice Chairman | Award / Grant | 302 | $82.90 | $25,036 | Dec 31, 2023 |
| IBKR | Vice Chairman | Gift | 800 | — | — | Dec 6, 2023 |
| IBKR | Vice Chairman | Other | 221,178 | $86.85 | $19,209,309 | Aug 10, 2023 |
| IBKR | Vice Chairman | Award / Grant | 396,000 | $86.85 | $34,392,600 | Jul 27, 2023 |
| IBKR | Vice Chairman | Tax Withholding | 2,271 | $77.99 | $177,115 | May 9, 2023 |
| IBKR | Vice Chairman | Tax Withholding | 3,052 | $77.99 | $238,025 | May 9, 2023 |
| IBKR | Vice Chairman | Award / Grant | 14,954 | — | — | Dec 31, 2022 |
| IBKR | Vice Chairman | Gift | 1,250 | — | — | Oct 19, 2022 |
| IBKR | Vice Chairman | Tax Withholding | 2,554 | $52.62 | $134,391 | May 9, 2022 |
| IBKR | Vice Chairman | Award / Grant | 191 | — | — | Apr 25, 2022 |
| IBKR | Vice Chairman | Award / Grant | 315 | $79.42 | $25,017 | Dec 31, 2021 |
| IBKR | Vice Chairman | Tax Withholding | 2,097 | $69.60 | $145,951 | May 7, 2021 |
| IBKR | Vice Chairman | Award / Grant | 14,295 | — | — | Dec 31, 2020 |
| IBKR | Vice Chairman | Sale | 41,114 | $48.82 | $2,007,185 | Oct 2, 2020 |
| IBKR | Vice Chairman | Sale | 38,500 | $48.56 | $1,869,560 | Sep 23, 2020 |
| IBKR | Vice Chairman | Sale | 8,100 | $47.79 | $387,099 | Sep 18, 2020 |
| IBKR | Vice Chairman | Sale | 20,255 | $47.71 | $966,366 | Sep 16, 2020 |
| IBKR | Vice Chairman | Sale | 11,700 | $47.90 | $560,430 | Sep 11, 2020 |
| IBKR | Vice Chairman | Sale | 300 | $48.00 | $14,400 | Sep 9, 2020 |
| IBKR | Vice Chairman | Sale | 3,000 | $53.44 | $160,320 | Sep 8, 2020 |
| IBKR | Vice Chairman | Sale | 55,497 | $53.29 | $2,957,435 | Sep 3, 2020 |
| IBKR | Vice Chairman | Sale | 52,603 | $53.17 | $2,796,902 | Aug 31, 2020 |
| IBKR | Vice Chairman | Sale | 130,581 | $53.01 | $6,922,099 | Aug 28, 2020 |
| IBKR | Vice Chairman | Sale | 156,869 | $52.60 | $8,251,309 | Aug 26, 2020 |
| IBKR | Vice Chairman | Sale | 45,834 | $51.93 | $2,380,160 | Aug 25, 2020 |
| IBKR | Vice Chairman | Award / Grant | 1,000,000 | $52.27 | $52,270,000 | Aug 20, 2020 |
| IBKR | Vice Chairman | Tax Withholding | 1,939 | $41.13 | $79,751 | May 8, 2020 |
| IBKR | Vice Chairman | Award / Grant | 11,679 | — | — | Dec 31, 2019 |
| IBKR | Vice Chairman | Award / Grant | 7,434 | — | — | Dec 31, 2018 |
| IBKR | Vice Chairman | Tax Withholding | 233 | $79.24 | $18,463 | May 9, 2018 |
| IBKR | Vice Chairman | Sale | 32,000 | $62.80 | $2,009,600 | Jan 22, 2018 |