Sandisk Corp — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 117 | $237.61 | $27,800 | 33,886 | Dec 20, 2025 |
| Sayiner Necip | — | Sale | 1,271 | $195.14 | $248,023 | 3,479 | Dec 3, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 211 | $220.50 | $46,526 | 34,003 | Nov 25, 2025 |
| Goeckeler David | Chief Executive Officer | Tax Withholding | 1,569 | $220.50 | $345,965 | 517,704 | Nov 25, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Tax Withholding | 653 | $220.50 | $143,987 | 58,973 | Nov 25, 2025 |
| Visoso Luis Felipe | EVP and Chief Financial Office | Tax Withholding | 1,588 | $200.27 | $318,029 | 168,240 | Nov 21, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 107 | $200.27 | $21,429 | 34,214 | Nov 20, 2025 |
| Pokorny Michael | VP, Chief Accounting Officer | Tax Withholding | 821 | $195.96 | $160,883 | 26,250 | Nov 20, 2025 |
| Goeckeler David | Chief Executive Officer | Tax Withholding | 1,032 | $200.27 | $206,679 | 519,273 | Nov 20, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Tax Withholding | 319 | $200.27 | $63,886 | 59,626 | Nov 20, 2025 |
| Shook Ellyn | — | Award / Grant | 979 | — | — | 4,750 | Nov 18, 2025 |
| Sayiner Necip | — | Award / Grant | 979 | — | — | 4,750 | Nov 18, 2025 |
| Caulfield Thomas | — | Award / Grant | 979 | — | — | 16,812 | Nov 18, 2025 |
| Cassidy Richard B. II | — | Award / Grant | 1,143 | — | — | 4,914 | Nov 18, 2025 |
| KUMAR DEVINDER | — | Award / Grant | 979 | — | — | 4,769 | Nov 18, 2025 |
| Suzuki Miyuki | — | Award / Grant | 979 | — | — | 13,407 | Nov 17, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 362 | $148.04 | $53,590 | 34,430 | Oct 20, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 117 | $102.21 | $11,959 | 34,792 | Sep 20, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Award / Grant | 18,313 | — | — | 34,909 | Sep 3, 2025 |
| Pokorny Michael | VP, Chief Accounting Officer | Award / Grant | 13,028 | — | — | 27,071 | Sep 3, 2025 |
| Visoso Luis Felipe | EVP and CFO | Award / Grant | 47,090 | — | — | 169,828 | Sep 3, 2025 |
| Goeckeler David | Chairman and CEO | Award / Grant | 85,025 | — | — | 521,604 | Sep 3, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Award / Grant | 26,161 | — | — | 60,107 | Sep 3, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 211 | $46.78 | $9,871 | 16,674 | Aug 27, 2025 |
| Goeckeler David | Chairman and CEO | Tax Withholding | 1,569 | $46.78 | $73,398 | 437,559 | Aug 27, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Tax Withholding | 653 | $46.78 | $30,547 | 33,946 | Aug 25, 2025 |
| Visoso Luis Felipe | EVP and CFO | Tax Withholding | 25,654 | $44.40 | $1,139,038 | 129,091 | Aug 21, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 428 | $45.50 | $19,474 | 16,885 | Aug 20, 2025 |
| Goeckeler David | Chairman and CEO | Tax Withholding | 4,129 | $45.50 | $187,870 | 439,128 | Aug 20, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Tax Withholding | 1,278 | $45.50 | $58,149 | 34,599 | Aug 20, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 29 | $42.19 | $1,224 | 17,423 | Jul 20, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 184 | $46.58 | $8,571 | 17,452 | Jun 20, 2025 |
| WESTERN DIGITAL CORP | — | Other | 21,314,768 | — | — | 7,513,019 | Jun 9, 2025 |
| WESTERN DIGITAL CORP | — | Other | 21,314,768 | — | — | 7,513,019 | Jun 9, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 54 | $38.18 | $2,062 | 17,636 | May 25, 2025 |
| Goeckeler David | Chairman and CEO | Tax Withholding | 979 | $38.18 | $37,378 | 478,252 | May 25, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Tax Withholding | 653 | $37.28 | $24,344 | 36,972 | May 25, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 76 | $40.18 | $3,054 | 17,837 | May 20, 2025 |
| Goeckeler David | Chairman and CEO | Tax Withholding | 1,299 | $40.18 | $52,194 | 480,800 | May 20, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Tax Withholding | 162 | $40.18 | $6,509 | 37,625 | May 20, 2025 |
| Pokorny Michael | VP, Chief Accounting Officer | Award / Grant | 7,750 | — | — | 14,043 | May 9, 2025 |
| Shek Bernard | Chief Legal Officer & Secty | Tax Withholding | 29 | $31.29 | $907 | 17,913 | Apr 20, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Tax Withholding | 1,501 | $31.29 | $46,966 | 37,787 | Apr 20, 2025 |
| Shek Bernard | Chief Legal Officer & Secreta | Tax Withholding | 81 | $56.21 | $4,553 | 17,942 | Mar 20, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Tax Withholding | 1,558 | $56.21 | $87,575 | 39,288 | Mar 20, 2025 |
| Ilkbahar Alper | EVP, Chief Technology Officer | Tax Withholding | 569 | $50.44 | $28,700 | 40,846 | Mar 12, 2025 |
| Goeckeler David | Chairman and CEO | Tax Withholding | 3,847 | $50.44 | $194,043 | 482,099 | Mar 12, 2025 |
| Suzuki Miyuki | — | Award / Grant | 5,693 | — | — | 10,493 | Mar 3, 2025 |
| Alexy Kimberly | — | Award / Grant | 4,148 | — | — | 5,401 | Mar 3, 2025 |
| Cassidy Richard B. II | — | Award / Grant | 3,771 | — | — | 3,771 | Mar 3, 2025 |