View the latest insider transactions and institutional holdings for WDC. Analyze how executives and major investors are positioning.
| Insider Name | Relationship | Trade Date | Transaction | Price/Share | Shares Traded | Total Value ($) | Total Holdings | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Oct 20 '25 | Option Exercise | 0.00 | 8 | 0 | 150,882 | Oct 21 06:36 PM |
| Tan Irving | Chief Executive Officer | Sep 20 '25 | Option Exercise | 0.00 | 34 | 0 | 666,246 | Sep 22 06:26 PM |
| Davis Brian Scott | Chief Sales & Mrktng Officer | Sep 20 '25 | Option Exercise | 0.00 | 5 | 0 | 135,976 | Sep 22 06:24 PM |
| Gubbi Vidyadhara K | Chief of Global Operations | Sep 04 '25 | Sale | 90.29 | 11,343 | 1,024,162 | 151,596 | Sep 05 07:57 PM |
| VIDYADHARA K GUBBI | Officer | Sep 04 '25 | Proposed Sale | 90.29 | 11,343 | 1,024,162 | Sep 04 04:06 PM | |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Aug 28 '25 | Sale | 80.90 | 353 | 28,558 | 27,425 | Aug 28 06:26 PM |
| GENE M ZAMISKA | Officer | Aug 28 '25 | Proposed Sale | 80.90 | 353 | 28,558 | Aug 28 04:01 PM | |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Aug 27 '25 | Option Exercise | 0.00 | 1 | 0 | 151,140 | Aug 28 06:26 PM |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Aug 27 '25 | Option Exercise | 0.00 | 1 | 0 | 28,123 | Aug 28 06:26 PM |
| Gubbi Vidyadhara K | Chief of Global Operations | Aug 27 '25 | Option Exercise | 0.00 | 1 | 0 | 163,347 | Aug 28 06:25 PM |
| Davis Brian Scott | Chief Sales & Mrktg Officer | Aug 27 '25 | Option Exercise | 0.00 | 1 | 0 | 136,412 | Aug 28 06:25 PM |
| GENE M ZAMISKA | Officer | Aug 26 '25 | Proposed Sale | 79.10 | 814 | 64,387 | Aug 26 04:05 PM | |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Aug 26 '25 | Sale | 79.10 | 814 | 64,387 | 28,122 | Aug 27 05:47 PM |
| Tan Irving | Chief Executive Officer | Aug 25 '25 | Option Exercise | 0.00 | 13 | 0 | 592,297 | Aug 27 05:47 PM |
| Gubbi Vidyadhara K | Chief of Global Operations | Aug 25 '25 | Option Exercise | 0.00 | 3 | 0 | 147,932 | Aug 27 05:47 PM |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Aug 25 '25 | Option Exercise | 0.00 | 3 | 0 | 135,354 | Aug 27 05:47 PM |
| Davis Brian Scott | Chief Sales & Mrktg Officer | Aug 25 '25 | Option Exercise | 0.00 | 3 | 0 | 124,137 | Aug 27 05:47 PM |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Aug 25 '25 | Option Exercise | 0.00 | 2 | 0 | 29,734 | Aug 27 05:47 PM |
| GENE M ZAMISKA | Officer | Aug 22 '25 | Proposed Sale | 74.78 | 1,828 | 136,698 | Aug 22 04:02 PM | |
| CYNTHIA LOCK TREGILLIS | Officer | Aug 22 '25 | Proposed Sale | 74.78 | 14,067 | 1,051,930 | Aug 22 04:02 PM | |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Aug 22 '25 | Sale | 74.78 | 14,067 | 1,051,930 | 135,351 | Aug 25 06:47 PM |
| Zamiska Gene M. | SVP, Global Accounting & Chief | Aug 22 '25 | Sale | 74.78 | 1,828 | 136,698 | 29,732 | Aug 25 06:47 PM |
| Davis Brian Scott | Chief Sales & Marketing Office | Aug 21 '25 | Option Exercise | 0.00 | 8 | 0 | 126,505 | Aug 25 06:46 PM |
| Gubbi Vidyadhara K | Chief of Global Operations | Aug 21 '25 | Option Exercise | 0.00 | 9 | 0 | 150,702 | Aug 25 06:46 PM |
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | Aug 21 '25 | Option Exercise | 0.00 | 18 | 0 | 153,846 | Aug 25 06:47 PM |
| Zamiska Gene M. | SVP, Global Accounting & Chief | Aug 21 '25 | Sale | 75.68 | 3,160 | 239,149 | 31,560 | Aug 25 06:47 PM |
| Tan Irving | Chief Executive Officer | Aug 21 '25 | Option Exercise | 0.00 | 42 | 0 | 593,774 | Aug 25 06:46 PM |
| GENE M ZAMISKA | Officer | Aug 21 '25 | Proposed Sale | 75.68 | 3,160 | 239,149 | Aug 21 04:06 PM | |
| Tregillis Cynthia L | CLO and Corp. Sec. | Aug 20 '25 | Option Exercise | 0.00 | 10 | 0 | 156,393 | Aug 21 06:34 PM |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Aug 20 '25 | Option Exercise | 0.00 | 9 | 0 | 39,613 | Aug 21 06:34 PM |
| Gubbi Vidyadhara K | Chief of Global Ops | Aug 20 '25 | Option Exercise | 0.00 | 11 | 0 | 154,690 | Aug 21 06:33 PM |
| Davis Brian Scott | Chief Sales & Mrktg Off | Aug 20 '25 | Option Exercise | 0.00 | 14 | 0 | 131,333 | Aug 21 06:33 PM |
| Tan Irving | Chief Executive Officer | Aug 20 '25 | Option Exercise | 0.00 | 101 | 0 | 594,937 | Aug 21 06:33 PM |
| IRVING TAN | Officer | Aug 19 '25 | Proposed Sale | 75.90 | 8,621 | 654,334 | Aug 19 04:18 PM | |
| Tan Irving | Chief Executive Officer | Aug 19 '25 | Sale | 75.90 | 8,621 | 654,334 | 594,836 | Aug 21 06:33 PM |
| Gubbi Vidyadhara K | Chief of Global Ops | Aug 13 '25 | Sale | 76.26 | 5,597 | 426,827 | 154,679 | Aug 13 06:06 PM |
| VIDYADHARA K GUBBI | Officer | Aug 13 '25 | Proposed Sale | 76.26 | 5,597 | 426,827 | Aug 13 04:05 PM | |
| VIDYADHARA K GUBBI | Officer | Aug 11 '25 | Proposed Sale | 74.88 | 3,947 | 295,532 | Aug 11 04:28 PM | |
| Gubbi Vidyadhara K | Chief of Global Ops | Aug 11 '25 | Sale | 74.88 | 3,947 | 295,532 | 160,276 | Aug 13 06:06 PM |
| Tregillis Cynthia L | CLO and Corp. Sec. | Jul 20 '25 | Option Exercise | 0.00 | 5 | 0 | 157,689 | Jul 22 05:27 PM |
| Gubbi Vidyadhara K | Chief of Global Ops | Jun 20 '25 | Option Exercise | 0.00 | 28 | 0 | 172,441 | Jun 24 05:38 PM |
| Davis Brian Scott | Chief Sales & Mrktg Off | Jun 20 '25 | Option Exercise | 0.00 | 28 | 0 | 138,785 | Jun 24 05:38 PM |
| Gubbi Vidyadhara K | Chief of Global Ops | Jun 20 '25 | Option Exercise | 0.00 | 6 | 0 | 173,648 | Jun 23 06:11 PM |
| Davis Brian Scott | Chief Sales & Mrktg Off | Jun 20 '25 | Option Exercise | 0.00 | 3 | 0 | 139,426 | Jun 23 06:11 PM |
| GENE M ZAMISKA | Officer | Jun 17 '25 | Proposed Sale | 58.01 | 245 | 14,212 | Jun 17 04:02 PM | |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Jun 17 '25 | Sale | 58.01 | 245 | 14,212 | 39,604 | Jun 17 07:47 PM |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | Jun 05 '25 | Sale | 54.88 | 1,729 | 94,888 | 40,089 | Jun 06 05:24 PM |
| GENE M ZAMISKA | Officer | Jun 05 '25 | Proposed Sale | 54.88 | 1,729 | 94,888 | Jun 05 04:15 PM | |
| Tan Irving | Chief Executive Officer | May 13 '25 | Sale | 48.19 | 11,379 | 548,354 | 605,481 | May 14 05:13 PM |
| IRVING TAN | Officer | May 13 '25 | Proposed Sale | 48.19 | 11,379 | 548,354 | May 13 04:02 PM |
| Report Date | Institution | % Held | Shares Held | Value ($) | % Change QoQ |
|---|---|---|---|---|---|
| 2025-06-30 | FMR, LLC | 9.44% | 32,261,134 | 5,165,007,750 | 17.14% |
| 2025-06-30 | Bank of America Corporation | 7.57% | 25,877,954 | 4,143,060,593 | 41.90% |
| 2025-06-30 | Ameriprise Financial, Inc. | 2.65% | 9,059,528 | 1,450,430,488 | 14.59% |
| 2025-06-30 | FIL LTD | 3.05% | 10,425,084 | 1,669,056,012 | 37.65% |
| 2025-06-30 | Blackrock Inc. | 10.24% | 34,996,856 | 5,602,996,859 | 16.47% |
| 2025-06-30 | State Street Corporation | 4.44% | 15,184,522 | 2,431,042,064 | 1.94% |
| 2025-06-30 | JPMORGAN CHASE & CO | 3.31% | 11,308,503 | 1,810,491,399 | -43.17% |
| 2025-06-30 | UBS Group AG | 3.34% | 11,427,216 | 1,829,497,351 | -33.13% |
| 2025-06-30 | Geode Capital Management, LLC | 2.72% | 9,305,289 | 1,489,776,825 | 2.04% |
| 2025-06-30 | Vanguard Group Inc | 12.59% | 43,039,216 | 6,890,578,744 | 0.23% |
