Western Digital Corp
WDC- Exchange
- Nasdaq
- Industry
- Computer Storage Devices
- SEC CIK
- 0000106040
In the last 90 days, Western Digital Corp insiders filed 0 open-market purchases and 9 sales; 1,852 institutions reported holding it in 13F filings for Q2 2026, worth $206.3B in total; Maverick Capital is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Western Digital Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 9 filings
- 5 insiders, $15.8M in total
- Insiders trading
- 5
- Net value
- −$15.8M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Western Digital Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | 111,030 | Sep 21, 2026 | 21 |
| Tan Irving | Chief Executive Officer | 265,613 | Sep 21, 2026 | 19 |
| Streeter Stephanie A | Director | 34,807Indirect | Sep 21, 2026 | 6 |
| Shihab Ahmed Mohammed | Chief Product Officer | 158,608 | Sep 21, 2026 | 5 |
| Sennesael Kris | Chief Financial Officer | 173,709 | Sep 21, 2026 | 7 |
| Oulman Roxanne | Director | 3,863 | Sep 21, 2026 | 6 |
| Massengill Matthew E | Director | 0Indirect | Sep 21, 2026 | 6 |
| Kiddoo Bruce E | Director | 3,903 | Sep 21, 2026 | 8 |
| Gubbi Vidyadhara K | Chief of Global Operations | 80,571 | Sep 21, 2026 | 20 |
| Feller Brad | SVP, Global Accounting & Chief | 12,043 | Sep 21, 2026 | 6 |
| Doluca Tunc | Director | 37,849Indirect | Sep 21, 2026 | 5 |
| Davis Brian Scott | Chief Sales & Mrktng Officer | 99,491 | Sep 21, 2026 | 18 |
| Das Manuvir | Director | 772 | Sep 21, 2026 | 3 |
| Cole Martin I | Director | 21,433 | Sep 21, 2026 | 12 |
| Alexy Kimberly | Director | 1,585 | Sep 21, 2026 | 7 |
| Zamiska Gene M. | SVP & Princ. Acctg Officer | 27,425 | Sep 22, 2025 | 0 |
| Bennett Don R | Interim CFO | 104,554 | Mar 10, 2025 | 0 |
| Jabre Wissam G | EVP & CFO | 335,672 | Mar 3, 2025 | 0 |
| Goeckeler David | Chief Executive Officer | 812,303 | Dec 2, 2024 | 0 |
| Soderbery Robert | EVP & GM, Flash Business | 132,940 | Dec 2, 2024 | 0 |
| Caulfield Thomas | Director | 21,737 | Nov 22, 2024 | 0 |
| Suzuki Miyuki | Director | 18,160 | Nov 22, 2024 | 0 |
| Ray Michael Charles | EVP, Chief Legal Officer & Sec | 178,008 | Nov 28, 2023 | 0 |
| Sivaram Srinivasan | President, Tech & Strategy | 310,315 | Sep 6, 2023 | 0 |
| Rayman Reed B | Director | 0 | May 24, 2023 | 0 |
| Price Paula A | Director | 7,545 | Feb 1, 2022 | 0 |
| Eulau Robert K | EVP & CFO | 131,981 | Sep 17, 2021 | 0 |
| Hunkler Sean | EVP, Global Operations | 156,560 | Sep 17, 2021 | 0 |
| Sundberg Lori S | EVP & Chief Human Res Officer | 62,795 | Aug 10, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 6, 2026 (view filing) | Feb 6 | Same day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −6.78K | $270.49 | −$1.83M | −4.7%136.5K after | |
| Feb 19, 2026 (view filing) | Feb 17 | 2 days | Davis Brian ScottChief Sales & Mrktng Officer | SSale | −10.0K | $279.16 | −$2.79M | −7.6%121.8K after | 12 lots10b5-1 |
| Feb 24, 2026 (view filing) | Feb 23-24 | 1 day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −438 | $282.33 | −$123.7K | −0.3%134.8K after | 2 lots10b5-1 |
| Feb 27, 2026 (view filing) | Feb 26 | 1 day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −214 | $286.11 | −$61.2K | −0.2%133.8K after | 10b5-1 |
| Mar 3, 2026 (view filing) | Mar 2 | 1 day | Cole Martin IDirector | SSale | −6.00K | $271.67 | −$1.63M | −16.9%29.4K after | 14 lots10b5-1 |
| Mar 5, 2026 (view filing) | Mar 4 | 1 day | Gubbi Vidyadhara KChief of Global Operations | SSale | −10.1K | $270.31 | −$2.74M | −8.6%107.8K after | 2 lots |
| Mar 5, 2026 (view filing) | Mar 4 | 1 day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −9.32K | $268.28 | −$2.50M | −7.1%121.7K after | 2 lots10b5-1 |
| Mar 10, 2026 (view filing) | Mar 6 | 4 days | Gubbi Vidyadhara KChief of Global Operations | SSale | −8.52K | $255.33 | −$2.17M | −7.9%99.3K after | |
| Apr 22, 2026 (view filing) | Apr 21 | 1 day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −363 | $377.09 | −$136.9K | −0.3%120.0K after | 10b5-1 |
| May 5, 2026 (view filing) | May 1 | 4 days | Tan IrvingChief Executive Officer | SSale | −20.0K | $411.84 | −$8.24M | −3.2%598.1K after | 9 lots10b5-1 |
| May 5, 2026 (view filing) | May 4 | 1 day | Gubbi Vidyadhara KChief of Global Operations | SSale | −4.67K | $443.19 | −$2.07M | −4.9%90.0K after | |
| May 12, 2026 (view filing) | May 11 | 1 day | Davis Brian ScottChief Sales & Mrktng Officer | SSale | −10.0K | $500.69 | −$5.01M | −8.7%105.6K after | 18 lots10b5-1 |
| May 22, 2026 (view filing) | May 21 | 1 day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −106 | $458.87 | −$48.6K | −0.1%118.4K after | 10b5-1 |
| May 27, 2026 (view filing) | May 22-27 | 5 days | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −522 | $509.53 | −$266.0K | −0.4%117.2K after | 2 lots10b5-1 |
| May 29, 2026 (view filing) | May 28 | 1 day | Kiddoo Bruce EDirector | SSale | −750 | $528.52 | −$396.4K | −16.1%3.90K after | |
| Jun 2, 2026 (view filing) | Jun 1 | 1 day | Gubbi Vidyadhara KChief of Global Operations | SSale | −2.48K | $556.24 | −$1.38M | −2.8%85.2K after | |
| Jun 5, 2026 (view filing) | Jun 5 | Same day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −432 | $545.60 | −$235.7K | −0.4%116.6K after | 10b5-1 |
| Jun 11, 2026 (view filing) | Jun 9 | 2 days | Cole Martin IDirector | SSale | −3.28K | $511.16 | −$1.68M | −11.1%26.2K after | 30 lots10b5-1 |
| Jun 11, 2026 (view filing) | Jun 9 | 2 days | Cole Martin IDirector | SSale | −720 | $536.01 | −$385.9K | −2.8%25.4K after | 14 lots10b5-1 |
| Jul 21, 2026 (view filing)8:56 PM ET | Jul 21 | Same day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −808 | $529.63 | −$427.9K | −0.7%114.5K after | 10b5-1 |
| Jul 29, 2026 (view filing)7:31 PM ET | Jul 28 | 1 day | Cole Martin IDirector | SSale | −3.81K | $448.66 | −$1.71M | −15.0%21.6K after | 30 lots10b5-1 |
| Jul 29, 2026 (view filing)7:32 PM ET | Jul 28 | 1 day | Cole Martin IDirector | SSale | −192 | $462.77 | −$88.9K | −0.9%21.4K after | 2 lots10b5-1 |
| Aug 12, 2026 (view filing)9:24 PM ET | Aug 11 | 1 day | Tan IrvingChief Executive Officer | SSale | −20.0K | $444.97 | −$8.90M | −3.4%576.0K after | 7 lots10b5-1 |
| Aug 24, 2026 (view filing)7:00 PM ET | Aug 21-24 | 3 days | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −919 | $454.12 | −$417.3K | −0.8%112.1K after | 2 lots10b5-1 |
| Aug 27, 2026 (view filing)8:05 PM ET | Aug 26-27 | 1 day | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −1.48K | $469.51 | −$696.3K | −1.3%112.2K after | 2 lots10b5-1 |
| Sep 2, 2026 (view filing)6:03 PM ET | Aug 31-Sep 1 | 2 days | Streeter Stephanie ADirector | SSale | −5.60K | $449.87 | −$2.52M | −13.9%34.8K after | 3 lots |
| Sep 8, 2026 (view filing)8:13 PM ET | Sep 4 | 4 days | Gubbi Vidyadhara KChief of Global Operations | SSale | −1.79K | $459.87 | −$825.5K | −2.2%80.6K after | |
| Sep 8, 2026 (view filing)8:13 PM ET | Sep 4 | 4 days | Tregillis Cynthia LChief Legal Officer & Corp Sec | SSale | −432 | $451.20 | −$194.9K | −0.4%111.0K after | 10b5-1 |