Insider Trades
SEC Form 4 filings — transactions by corporate insiders.
47 total trades for SNDK
| Ticker | Insider | Type | Date | Shares | Value | Filing |
|---|---|---|---|---|---|---|
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-08-25 | 654 | $968K | SEC ↗ |
| SNDK | David Goeckeler | Tax Withhold | 2026-08-25 | 49,782 | $73.7M | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-08-25 | 212 | $314K | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-08-21 | 108 | $172K | SEC ↗ |
| SNDK | David Goeckeler | Tax Withhold | 2026-08-21 | 1,033 | $1.6M | SEC ↗ |
| SNDK | Luis Felipe Visoso | Tax Withhold | 2026-08-21 | 1,589 | $2.5M | SEC ↗ |
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-08-21 | 320 | $511K | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-08-20 | 111 | $178K | SEC ↗ |
| SNDK | David Goeckeler | Tax Withhold | 2026-08-20 | 1,300 | $2.1M | SEC ↗ |
| SNDK | Luis Felipe Visoso | Tax Withhold | 2026-08-20 | 25,655 | $41.1M | SEC ↗ |
| SNDK | Alper Ilkbahar | Exercise | 2026-08-20 | 276 | — | SEC ↗ |
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-08-20 | 439 | $703K | SEC ↗ |
| SNDK | Bernard Shek | Sale | 2026-08-03 | 600 | $697K | SEC ↗ |
| SNDK | Bernard Shek | Sale | 2026-07-01 | 600 | $1.3M | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-06-20 | 117 | $256K | SEC ↗ |
| SNDK | Bernard Shek | Sale | 2026-06-03 | 600 | $1.0M | SEC ↗ |
| SNDK | Alper Ilkbahar | Gift | 2026-06-02 | 2,694 | $0 | SEC ↗ |
| SNDK | Alper Ilkbahar | Sale | 2026-06-01 | 2,000 | $3.5M | SEC ↗ |
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-05-25 | 653 | $966K | SEC ↗ |
| SNDK | David Goeckeler | Tax Withhold | 2026-05-25 | 1,569 | $2.3M | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-05-25 | 211 | $312K | SEC ↗ |
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-05-21 | 319 | $492K | SEC ↗ |
| SNDK | David Goeckeler | Tax Withhold | 2026-05-21 | 1,032 | $1.6M | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-05-21 | 107 | $165K | SEC ↗ |
| SNDK | Luis Felipe Visoso | Tax Withhold | 2026-05-21 | 1,588 | $2.4M | SEC ↗ |
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-05-20 | 162 | $226K | SEC ↗ |
| SNDK | David Goeckeler | Tax Withhold | 2026-05-20 | 1,299 | $1.8M | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-05-20 | 109 | $152K | SEC ↗ |
| SNDK | Thomas Caulfield | Gift | 2026-05-12 | 9,666 | $0 | SEC ↗ |
| SNDK | Michael Pokorny | Sale | 2026-05-12 | 2,446 | $3.5M | SEC ↗ |
| SNDK | Michael Pokorny | Tax Withhold | 2026-05-09 | 1,429 | $2.2M | SEC ↗ |
| SNDK | Necip Sayiner | Sale | 2026-05-08 | 579 | $870K | SEC ↗ |
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-04-20 | 2,251 | $2.1M | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-04-20 | 41 | $37K | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-03-20 | 117 | $83K | SEC ↗ |
| SNDK | Thomas Caulfield | Gift | 2026-03-03 | 29,000 | — | SEC ↗ |
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-02-25 | 566 | $358K | SEC ↗ |
| SNDK | David Goeckeler | Tax Withhold | 2026-02-25 | 1,569 | $992K | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-02-25 | 211 | $133K | SEC ↗ |
| SNDK | Miyuki Suzuki | Sale | 2026-02-25 | 3,500 | $2.2M | SEC ↗ |
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-02-21 | 223 | $145K | SEC ↗ |
| SNDK | David Goeckeler | Tax Withhold | 2026-02-21 | 1,032 | $671K | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-02-21 | 107 | $70K | SEC ↗ |
| SNDK | Luis Felipe Visoso | Tax Withhold | 2026-02-21 | 1,594 | $1.0M | SEC ↗ |
| SNDK | Alper Ilkbahar | Tax Withhold | 2026-02-20 | 122 | $79K | SEC ↗ |
| SNDK | David Goeckeler | Tax Withhold | 2026-02-20 | 1,300 | $845K | SEC ↗ |
| SNDK | Bernard Shek | Tax Withhold | 2026-02-20 | 117 | $76K | SEC ↗ |