WDC
WESTERN DIGITAL CORP
NASDAQ · Technology · Computer Hardware · US
$324.89
−6.47%0
Insider buys (3m)
28
Insider sells (3m)
-$14.5M
Net value (3m)
-36.9%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Oct 30, 2026 | Cole Martin I · director | Sale | 494 | $393 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 584 | $397 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 204 | $390 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 303 | $399 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 209 | $395 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 88 | $400 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 243 | $394 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 43 | $401 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 407 | $392 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 317 | $396 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 385 | $391 |
| Oct 30, 2026 | Cole Martin I · director | Sale | 723 | $398 |
| Oct 22, 2026 | Tregillis Cynthia L · officer: Chief Legal Officer & Corp Sec | M-Exempt | 14 | $0.00 |
| Oct 22, 2026 | Tregillis Cynthia L · officer: Chief Legal Officer & Corp Sec | M-Exempt | 14 | $0.00 |
| Oct 22, 2026 | Tregillis Cynthia L · officer: Chief Legal Officer & Corp Sec | F-InKind | 1,310 | $364 |
| Oct 22, 2026 | Tregillis Cynthia L · officer: Chief Legal Officer & Corp Sec | Sale | 807 | $380 |
| Sep 21, 2026 | Sennesael Kris · officer: Chief Financial Officer | A-Award | 47 | $0.00 |
| Sep 21, 2026 | Das Manuvir · director | A-Award | 0 | $0.00 |
| Sep 21, 2026 | Cole Martin I · director | A-Award | 1 | $0.00 |
| Sep 21, 2026 | Shihab Ahmed Mohammed · officer: Chief Product Officer | F-InKind | 5,150 | $424 |
| Sep 21, 2026 | Feller Brad · officer: SVP, Global Accounting & Chief | A-Award | 4 | $0.00 |
| Sep 21, 2026 | Shihab Ahmed Mohammed · officer: Chief Product Officer | A-Award | 42 | $0.00 |
| Sep 21, 2026 | Alexy Kimberly · director | A-Award | 1 | $0.00 |
| Sep 21, 2026 | MASSENGILL MATTHEW E · director | A-Award | 10 | $0.00 |
| Sep 21, 2026 | Oulman Roxanne · director | A-Award | 1 | $0.00 |
| Sep 21, 2026 | STREETER STEPHANIE A · director | A-Award | 1 | $0.00 |
| Sep 21, 2026 | Tan Irving · director, officer: Chief Executive Officer | M-Exempt | 57 | $0.00 |
| Sep 21, 2026 | Shihab Ahmed Mohammed · officer: Chief Product Officer | M-Exempt | 57 | $0.00 |
| Sep 21, 2026 | Tan Irving · director, officer: Chief Executive Officer | F-InKind | 1,091 | $441 |
| Sep 21, 2026 | Shihab Ahmed Mohammed · officer: Chief Product Officer | M-Exempt | 56 | $0.00 |
Institutional positioning
13F filings over the trailing two quarters
New 833Increased 1203Reduced 1221Sold out 198
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 35,769,222 | May 13, 2026 |
| BlackRock, Inc. | Reduced | 32,953,613 | Aug 7, 2026 |
| FMR LLC | Reduced | 31,623,418 | May 15, 2026 |
| FMR LLC | Reduced | 25,983,645 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 22,510,811 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 22,034,861 | May 15, 2026 |
| JPMORGAN CHASE & CO | Increased | 17,512,148 | May 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 17,172,653 | May 8, 2026 |
| JPMORGAN CHASE & CO | Reduced | 17,007,789 | Aug 12, 2026 |
| Capital World Investors | Increased | 16,598,211 | Aug 12, 2026 |
| STATE STREET CORP | Increased | 16,276,615 | Sep 22, 2026 |
| STATE STREET CORP | Reduced | 15,465,766 | May 15, 2026 |
| Invesco Ltd. | Increased | 14,455,741 | Aug 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 13,109,474 | Aug 13, 2026 |
| JANE STREET GROUP, LLC | Increased | 12,777,946 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Oct 30, 2026