The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 1, 2026 | Shek Bernard | Chief Legal Officer & Secty | Sell(S) | 600 | $2,088.00 | $1.3M |
| Jun 20, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 117 | $2,184.75 | $256K |
| Jun 3, 2026 | Shek Bernard | Chief Legal Officer & Secty | Sell(S) | 600 | $1,736.00 | $1.0M |
| Jun 2, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Gift(G) | 3K | — | $0 |
| Jun 1, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Sell(S) | 600 | $1,758.40 | $1.1M |
| Jun 1, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Sell(S) | 401 | $1,757.00 | $705K |
| Jun 1, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Sell(S) | 999 | $1,755.31 | $1.8M |
| May 25, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 211 | $1,478.69 | $312K |
| May 25, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 653 | $1,478.69 | $966K |
| May 25, 2026 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 2K | $1,478.69 | $2.3M |
| May 21, 2026 | Visoso Luis Felipe | EVP and Chief Financial Office | Tax withholding(F) | 2K | $1,542.24 | $2.4M |
| May 21, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 107 | $1,542.24 | $165K |
| May 21, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 319 | $1,542.24 | $492K |
| May 21, 2026 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 1K | $1,542.24 | $1.6M |
| May 20, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 109 | $1,392.56 | $152K |
| May 20, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 162 | $1,392.56 | $226K |
| May 20, 2026 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 1K | $1,392.56 | $1.8M |
| May 12, 2026 | Caulfield Thomas | Director | Gift(G) | 10K | — | $0 |
| May 12, 2026 | Pokorny Michael | VP, Chief Accounting Officer | Sell(S) | 2K | $1,426.18 | $3.5M |
| May 9, 2026 | Pokorny Michael | VP, Chief Accounting Officer | Tax withholding(F) | 1K | $1,562.34 | $2.2M |
| May 8, 2026 | Sayiner Necip | Director | Sell(S) | 579 | $1,503.11 | $870K |
| Apr 20, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 2K | $913.02 | $2.1M |
| Apr 20, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 41 | $913.02 | $37K |
| Mar 20, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 117 | $709.71 | $83K |
| Mar 3, 2026 | Caulfield Thomas | Director | Gift(G) | 15K | — | $0 |
| Mar 3, 2026 | Caulfield Thomas | Director | Gift(G) | 15K | — | $0 |
| Feb 25, 2026 | Suzuki Miyuki | Director | Sell(S) | 4K | $627.53 | $2.2M |
| Feb 25, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 566 | $632.38 | $358K |
| Feb 25, 2026 | Goeckeler David | Chairman & CEO, Director | Tax withholding(F) | 2K | $632.38 | $992K |
| Feb 25, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 211 | $632.38 | $133K |
| Feb 21, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 223 | $649.97 | $145K |
| Feb 21, 2026 | Goeckeler David | Chairman & CEO, Director | Tax withholding(F) | 1K | $649.97 | $671K |
| Feb 21, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 107 | $649.97 | $70K |
| Feb 21, 2026 | Visoso Luis Felipe | EVP and CFO | Tax withholding(F) | 2K | $649.97 | $1.0M |
| Feb 20, 2026 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 122 | $649.97 | $79K |
| Feb 20, 2026 | Goeckeler David | Chairman & CEO, Director | Tax withholding(F) | 1K | $649.97 | $845K |
| Feb 20, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 117 | $649.97 | $76K |
| Jan 20, 2026 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 34 | $453.12 | $15K |
| Dec 30, 2025 | Bradley Alexander R. | Director | Grant(A) | 863 | — | $0 |
| Dec 20, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 117 | $237.61 | $28K |
| Dec 3, 2025 | Sayiner Necip | Director | Sell(S) | 1K | $195.14 | $248K |
| Nov 25, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 653 | $220.50 | $144K |
| Nov 25, 2025 | Goeckeler David | Chief Executive Officer, Director | Tax withholding(F) | 2K | $220.50 | $346K |
| Nov 25, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 211 | $220.50 | $47K |
| Nov 21, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 319 | $200.27 | $64K |
| Nov 21, 2025 | Goeckeler David | Chief Executive Officer, Director | Tax withholding(F) | 1K | $200.27 | $207K |
| Nov 21, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 107 | $200.27 | $21K |
| Nov 21, 2025 | Visoso Luis Felipe | EVP and Chief Financial Office | Tax withholding(F) | 2K | $200.27 | $318K |
| Nov 20, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 162 | $195.96 | $32K |
| Nov 20, 2025 | Goeckeler David | Chief Executive Officer, Director | Tax withholding(F) | 1K | $195.96 | $255K |
| Nov 20, 2025 | Pokorny Michael | VP, Chief Accounting Officer | Tax withholding(F) | 821 | $195.96 | $161K |
| Nov 20, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 109 | $195.96 | $21K |
| Nov 18, 2025 | Cassidy Richard B. II | Director | Grant(A) | 1K | — | $0 |
| Nov 18, 2025 | Caulfield Thomas | Director | Grant(A) | 979 | — | $0 |
| Nov 18, 2025 | Sayiner Necip | Director | Grant(A) | 979 | — | $0 |
| Nov 18, 2025 | Shook Ellyn | Director | Grant(A) | 979 | — | $0 |
| Nov 18, 2025 | Suzuki Miyuki | Director | Grant(A) | 979 | — | $0 |
| Nov 18, 2025 | Kumar Devinder | Director | Grant(A) | 979 | — | $0 |
| Nov 17, 2025 | Suzuki Miyuki | Director | Tax withholding(F) | 2K | $265.88 | $588K |
| Oct 20, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 362 | $148.04 | $54K |
| Sep 20, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 117 | $102.21 | $12K |
| Sep 3, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Grant(A) | 26K | — | $0 |
| Sep 3, 2025 | Goeckeler David | Chairman and CEO, Director | Grant(A) | 85K | — | $0 |
| Sep 3, 2025 | Visoso Luis Felipe | EVP and CFO | Grant(A) | 47K | — | $0 |
| Sep 3, 2025 | Pokorny Michael | VP, Chief Accounting Officer | Grant(A) | 13K | — | $0 |
| Sep 3, 2025 | Shek Bernard | Chief Legal Officer & Secty | Grant(A) | 18K | — | $0 |
| Aug 27, 2025 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 980 | $48.44 | $47K |
| Aug 27, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 78 | $48.44 | $4K |
| Aug 25, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 653 | $46.78 | $31K |
| Aug 25, 2025 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 2K | $46.78 | $73K |
| Aug 25, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 211 | $46.78 | $10K |
| Aug 21, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 1K | $45.50 | $58K |
| Aug 21, 2025 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 4K | $45.50 | $188K |
| Aug 21, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 428 | $45.50 | $19K |
| Aug 21, 2025 | Visoso Luis Felipe | EVP and CFO | Tax withholding(F) | 6K | $45.50 | $289K |
| Aug 20, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 1K | $44.40 | $49K |
| Aug 20, 2025 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 35K | $44.40 | $1.6M |
| Aug 20, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 110 | $44.40 | $5K |
| Aug 20, 2025 | Visoso Luis Felipe | EVP and CFO | Tax withholding(F) | 26K | $44.40 | $1.1M |
| Jul 20, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 29 | $42.19 | $1K |
| Jun 20, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 184 | $46.58 | $9K |
| Jun 9, 2025 | Western Digital Corp | 10% Owner | Other(J) | 21.3M | — | — |
| May 27, 2025 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 979 | $38.18 | $37K |
| May 27, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 54 | $38.18 | $2K |
| May 25, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 653 | $37.28 | $24K |
| May 25, 2025 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 2K | $37.28 | $58K |
| May 25, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 147 | $37.28 | $5K |
| May 20, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 162 | $40.18 | $7K |
| May 20, 2025 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 1K | $40.18 | $52K |
| May 20, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 76 | $40.18 | $3K |
| May 9, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Grant(A) | 149K | — | $0 |
| May 9, 2025 | Goeckeler David | Chairman and CEO, Director | Grant(A) | 954K | — | $0 |
| May 9, 2025 | Shek Bernard | Chief Legal Officer & Secty | Grant(A) | 59K | — | $0 |
| May 9, 2025 | Visoso Luis Felipe | EVP & CFO | Grant(A) | 358K | — | $0 |
| May 9, 2025 | Pokorny Michael | VP, Chief Accounting Officer | Grant(A) | 8K | — | $0 |
| Apr 20, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 2K | $31.29 | $47K |
| Apr 20, 2025 | Shek Bernard | Chief Legal Officer & Secty | Tax withholding(F) | 29 | $31.29 | $907 |
| Mar 20, 2025 | Ilkbahar Alper | EVP, Chief Technology Officer | Tax withholding(F) | 2K | $56.21 | $88K |
| Mar 20, 2025 | Shek Bernard | Chief Legal Officer & Secreta | Tax withholding(F) | 81 | $56.21 | $5K |
| Mar 12, 2025 | Goeckeler David | Chairman and CEO, Director | Tax withholding(F) | 4K | $50.44 | $194K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-01-04 → 2026-07-18. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).