Company / CIK 0000106040
WESTERN DIGITAL CORP
- Ticker
- WDC
- Size, estimated from filings
- Large cap ($10B – $200B)
- Insiders on file
- 15
- Members of Congress who traded it
- 2
- Federal contracts on record
- none matched
- Lobbying filings on record
- 17
- SEC filings
- EDGAR ↗
- Latest trade on record
- September 20, 2026
WESTERN DIGITAL CORP (WDC) has 15 insiders on file who disclosed 559 transactions in the last 12 months (0 open-market buys, 305 sales, about $130.6M at reported prices), and 3 congressional trades in its stock are on record. No federal contract award that started in the last 180 days was found for a recipient with exactly this name, and 10 lobbying filings naming it as client report $1.2M in 2026.
WESTERN DIGITAL CORP in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
8 people account for the disclosed buying and selling in WESTERN DIGITAL CORP over the last 12 months; the most active is Tan Irving with $31M.
Lobbying spend by quarter
How much has WESTERN DIGITAL CORP reported spending on federal lobbying?
WESTERN DIGITAL CORP reported $1.6M in lobbying over the last eight quarters, from filings matched by exact company name.
Insiders
| Name | Role | Rows | Bought | Sold | Last filed |
|---|---|---|---|---|---|
| Tregillis Cynthia L | Chief Legal Officer & Corp Sec | 84 | 0 | 39 | September 21, 2026 |
| Tan Irving | Chief Executive Officer | 102 | 0 | 57 | September 21, 2026 |
| Cole Martin I | Director | 116 | 0 | 109 | September 21, 2026 |
| Alexy Kimberly | Director | 9 | 0 | 2 | September 21, 2026 |
| DOLUCA TUNC | Director | 7 | 0 | 0 | September 21, 2026 |
| KIDDOO BRUCE E | Director | 10 | 0 | 1 | September 21, 2026 |
| Oulman Roxanne | Director | 8 | 0 | 1 | September 21, 2026 |
| MASSENGILL MATTHEW E | Director | 16 | 0 | 11 | September 21, 2026 |
| STREETER STEPHANIE A | Director | 10 | 0 | 3 | September 21, 2026 |
| Davis Brian Scott | Chief Sales & Marketing Office | 95 | 0 | 50 | September 21, 2026 |
| Feller Brad | SVP & Chief Accounting Officer | 6 | 0 | 0 | September 21, 2026 |
| Gubbi Vidyadhara K | Chief of Global Operations | 65 | 0 | 26 | September 21, 2026 |
| Sennesael Kris | Chief Financial Officer | 14 | 0 | 3 | September 21, 2026 |
| Shihab Ahmed Mohammed | Chief Product Officer | 17 | 0 | 4 | September 21, 2026 |
| Das Manuvir | Director | 3 | 0 | 0 | September 21, 2026 |
Rows are this company's Form 4 rows for each person. "Bought" and "sold" count open-market purchases (code P) and sales only. More in insider buying and insider selling.
Members of Congress who traded WDC
From periodic transaction reports that name the company's stock. Amounts are the sums of the ranges as filed. Every row is on the WDC page.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr. | Representative (CA, District 31), Democrat | 2 | 1 | 1 | $2,002–$30K | September 18, 2026 |
| Alan Armstrong | Senator (OK), Republican | 1 | 1 | 0 | $1,001–$15K | March 27, 2026 |
Insider transactions
| Filer | Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tregillis Cynthia L | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 27 | — | — | derivative | Form 4 ↗ | |
| Tan Irving | WDC | Option / conversion M | September 20, 2026 | September 21, 2026 | 1d | 57 | — | — | derivative | Form 4 ↗ | |
| Tan Irving | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 83 | — | — | derivative | Form 4 ↗ | |
| Tan Irving | WDC | Sell F | September 20, 2026 | September 21, 2026 | 1d | 1,091 | $441 | $482K | Form 4 ↗ | ||
| Tan Irving | WDC | Option / conversion M | September 20, 2026 | September 21, 2026 | 1d | 57 | — | — | Form 4 ↗ | ||
| STREETER STEPHANIE A | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 1 | — | — | derivative | Form 4 ↗ | |
| Shihab Ahmed Mohammed | WDC | Option / conversion M | September 17, 2026 | September 21, 2026 | 4d | 57 | — | — | derivative | Form 4 ↗ | |
| Shihab Ahmed Mohammed | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 42 | — | — | derivative | Form 4 ↗ | |
| Shihab Ahmed Mohammed | WDC | Sell F | September 17, 2026 | September 21, 2026 | 4d | 5,150 | $424 | $2.2M | Form 4 ↗ | ||
| Shihab Ahmed Mohammed | WDC | Option / conversion M | September 17, 2026 | September 21, 2026 | 4d | 56 | — | — | Form 4 ↗ | ||
| Sennesael Kris | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 47 | — | — | derivative | Form 4 ↗ | |
| Oulman Roxanne | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 1 | — | — | derivative | Form 4 ↗ | |
| MASSENGILL MATTHEW E | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 10 | — | — | derivative | Form 4 ↗ | |
| KIDDOO BRUCE E | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 1 | — | — | derivative | Form 4 ↗ | |
| Gubbi Vidyadhara K | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 21 | — | — | derivative | Form 4 ↗ | |
| Feller Brad | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 4 | — | — | derivative | Form 4 ↗ | |
| DOLUCA TUNC | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 1 | — | — | derivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Option / conversion M | September 20, 2026 | September 21, 2026 | 1d | 8 | — | — | derivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 17 | — | — | derivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Sell F | September 20, 2026 | September 21, 2026 | 1d | 963 | $441 | $425K | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Option / conversion M | September 20, 2026 | September 21, 2026 | 1d | 8 | — | — | Form 4 ↗ | ||
| Das Manuvir | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 0 | — | — | derivative | Form 4 ↗ | |
| Cole Martin I | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 1 | — | — | derivative | Form 4 ↗ | |
| Alexy Kimberly | WDC | Other A | September 17, 2026 | September 21, 2026 | 4d | 1 | — | — | derivative | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | September 3, 2026 | September 8, 2026 | 5d | 7 | — | — | late10b5-1 planderivative | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell S | September 4, 2026 | September 8, 2026 | 4d | 432 | $451 | $195K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell F | September 3, 2026 | September 8, 2026 | 5d | 700 | $442 | $309K | late10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | September 3, 2026 | September 8, 2026 | 5d | 7 | — | — | late10b5-1 plan | Form 4 ↗ | |
| Gubbi Vidyadhara K | WDC | Option / conversion M | September 3, 2026 | September 8, 2026 | 5d | 14 | — | — | latederivative | Form 4 ↗ | |
| Gubbi Vidyadhara K | WDC | Sell S | September 4, 2026 | September 8, 2026 | 4d | 1,795 | $460 | $825K | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Sell F | September 3, 2026 | September 8, 2026 | 5d | 1,764 | $442 | $779K | late | Form 4 ↗ | |
| Gubbi Vidyadhara K | WDC | Option / conversion M | September 3, 2026 | September 8, 2026 | 5d | 14 | — | — | late | Form 4 ↗ | |
| Davis Brian Scott | WDC | Option / conversion M | September 3, 2026 | September 8, 2026 | 5d | 7 | — | — | latederivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Sell F | September 3, 2026 | September 8, 2026 | 5d | 882 | $442 | $389K | late | Form 4 ↗ | |
| Davis Brian Scott | WDC | Option / conversion M | September 3, 2026 | September 8, 2026 | 5d | 7 | — | — | late | Form 4 ↗ | |
| Tan Irving | WDC | Other G | September 1, 2026 | September 2, 2026 | 1d | 112,500 | — | — | indirect | Form 4 ↗ | |
| Tan Irving | WDC | Other G | September 1, 2026 | September 2, 2026 | 1d | 112,500 | — | — | indirect | Form 4 ↗ | |
| Tan Irving | WDC | Other J | August 31, 2026 | September 2, 2026 | 2d | 112,500 | — | — | indirect | Form 4 ↗ | |
| Tan Irving | WDC | Other J | August 31, 2026 | September 2, 2026 | 2d | 112,500 | — | — | Form 4 ↗ | ||
| STREETER STEPHANIE A | WDC | Sell S | September 1, 2026 | September 2, 2026 | 1d | 1,600 | $455 | $728K | indirect | Form 4 ↗ | |
| STREETER STEPHANIE A | WDC | Sell S | August 31, 2026 | September 2, 2026 | 2d | 2,000 | $449 | $897K | indirect | Form 4 ↗ | |
| STREETER STEPHANIE A | WDC | Sell S | August 31, 2026 | September 2, 2026 | 2d | 2,000 | $447 | $894K | indirect | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 9 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | August 25, 2026 | August 27, 2026 | 2d | 8 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell S | August 27, 2026 | August 27, 2026 | 0d | 1,007 | $478 | $482K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell F | August 26, 2026 | August 27, 2026 | 1d | 1,631 | $469 | $765K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 9 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell S | August 26, 2026 | August 27, 2026 | 1d | 476 | $451 | $215K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Other A | August 25, 2026 | August 27, 2026 | 2d | 3,878 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell F | August 25, 2026 | August 27, 2026 | 2d | 771 | $451 | $348K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | August 25, 2026 | August 27, 2026 | 2d | 7 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Tan Irving | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 42 | — | — | derivative | Form 4 ↗ | |
| Tan Irving | WDC | Option / conversion M | August 25, 2026 | August 27, 2026 | 2d | 32 | — | — | derivative | Form 4 ↗ | |
| Tan Irving | WDC | Sell F | August 26, 2026 | August 27, 2026 | 1d | 3,314 | $469 | $1.6M | Form 4 ↗ | ||
| Tan Irving | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 42 | — | — | Form 4 ↗ | ||
| Tan Irving | WDC | Other A | August 25, 2026 | August 27, 2026 | 2d | 16,548 | — | — | Form 4 ↗ | ||
| Tan Irving | WDC | Sell F | August 25, 2026 | August 27, 2026 | 2d | 476 | $451 | $215K | Form 4 ↗ | ||
| Tan Irving | WDC | Option / conversion M | August 25, 2026 | August 27, 2026 | 2d | 32 | — | — | Form 4 ↗ | ||
| Shihab Ahmed Mohammed | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 16 | — | — | derivative | Form 4 ↗ | |
| Shihab Ahmed Mohammed | WDC | Sell F | August 26, 2026 | August 27, 2026 | 1d | 2,741 | $469 | $1.3M | Form 4 ↗ | ||
| Shihab Ahmed Mohammed | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 15 | — | — | Form 4 ↗ | ||
| Shihab Ahmed Mohammed | WDC | Other A | August 25, 2026 | August 27, 2026 | 2d | 6,722 | — | — | Form 4 ↗ | ||
| Sennesael Kris | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 20 | — | — | derivative | Form 4 ↗ | |
| Sennesael Kris | WDC | Sell F | August 26, 2026 | August 27, 2026 | 1d | 4,317 | $469 | $2.0M | Form 4 ↗ | ||
| Sennesael Kris | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 19 | — | — | Form 4 ↗ | ||
| Sennesael Kris | WDC | Other A | August 25, 2026 | August 27, 2026 | 2d | 8,274 | — | — | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 9 | — | — | derivative | Form 4 ↗ | |
| Gubbi Vidyadhara K | WDC | Option / conversion M | August 25, 2026 | August 27, 2026 | 2d | 9 | — | — | derivative | Form 4 ↗ | |
| Gubbi Vidyadhara K | WDC | Sell F | August 26, 2026 | August 27, 2026 | 1d | 2,056 | $469 | $964K | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 9 | — | — | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Other A | August 25, 2026 | August 27, 2026 | 2d | 5,171 | — | — | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Sell F | August 25, 2026 | August 27, 2026 | 2d | 1,143 | $451 | $515K | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Option / conversion M | August 25, 2026 | August 27, 2026 | 2d | 9 | — | — | Form 4 ↗ | ||
| Feller Brad | WDC | Other A | August 25, 2026 | August 27, 2026 | 2d | 2,068 | — | — | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 8 | — | — | derivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Option / conversion M | August 25, 2026 | August 27, 2026 | 2d | 8 | — | — | derivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Sell F | August 26, 2026 | August 27, 2026 | 1d | 1,644 | $469 | $771K | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Option / conversion M | August 26, 2026 | August 27, 2026 | 1d | 7 | — | — | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Other A | August 25, 2026 | August 27, 2026 | 2d | 3,619 | — | — | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Sell F | August 25, 2026 | August 27, 2026 | 2d | 971 | $451 | $438K | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Option / conversion M | August 25, 2026 | August 27, 2026 | 2d | 7 | — | — | Form 4 ↗ | ||
| Tregillis Cynthia L | WDC | Option / conversion M | August 21, 2026 | August 24, 2026 | 3d | 11 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 4 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell S | August 24, 2026 | August 24, 2026 | 0d | 684 | $446 | $305K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell F | August 21, 2026 | August 24, 2026 | 3d | 1,109 | $459 | $510K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | August 21, 2026 | August 24, 2026 | 3d | 11 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell S | August 21, 2026 | August 24, 2026 | 3d | 235 | $477 | $112K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell F | August 20, 2026 | August 24, 2026 | 4d | 379 | $469 | $178K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 3 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Tan Irving | WDC | Option / conversion M | August 21, 2026 | August 24, 2026 | 3d | 25 | — | — | derivative | Form 4 ↗ | |
| Tan Irving | WDC | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 13 | — | — | derivative | Form 4 ↗ | |
| Tan Irving | WDC | Sell F | August 21, 2026 | August 24, 2026 | 3d | 545 | $459 | $250K | Form 4 ↗ | ||
| Tan Irving | WDC | Option / conversion M | August 21, 2026 | August 24, 2026 | 3d | 25 | — | — | Form 4 ↗ | ||
| Tan Irving | WDC | Sell F | August 20, 2026 | August 24, 2026 | 4d | 144 | $469 | $68K | Form 4 ↗ | ||
| Tan Irving | WDC | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 13 | — | — | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Option / conversion M | August 21, 2026 | August 24, 2026 | 3d | 6 | — | — | derivative | Form 4 ↗ | |
| Gubbi Vidyadhara K | WDC | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 5 | — | — | derivative | Form 4 ↗ | |
| Gubbi Vidyadhara K | WDC | Sell F | August 21, 2026 | August 24, 2026 | 3d | 694 | $459 | $319K | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Option / conversion M | August 21, 2026 | August 24, 2026 | 3d | 5 | — | — | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Sell F | August 20, 2026 | August 24, 2026 | 4d | 592 | $469 | $278K | Form 4 ↗ | ||
| Gubbi Vidyadhara K | WDC | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 4 | — | — | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Option / conversion M | August 21, 2026 | August 24, 2026 | 3d | 5 | — | — | derivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 6 | — | — | derivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Sell F | August 21, 2026 | August 24, 2026 | 3d | 593 | $459 | $272K | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Option / conversion M | August 21, 2026 | August 24, 2026 | 3d | 4 | — | — | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Sell F | August 20, 2026 | August 24, 2026 | 4d | 716 | $469 | $336K | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 5 | — | — | Form 4 ↗ | ||
| Tan Irving | WDC | Sell S | August 11, 2026 | August 12, 2026 | 1d | 1,546 | $447 | $691K | 10b5-1 plan | Form 4 ↗ | |
| Tan Irving | WDC | Sell S | August 11, 2026 | August 12, 2026 | 1d | 6,445 | $446 | $2.9M | 10b5-1 plan | Form 4 ↗ | |
| Tan Irving | WDC | Sell S | August 11, 2026 | August 12, 2026 | 1d | 4,822 | $445 | $2.1M | 10b5-1 plan | Form 4 ↗ | |
| Tan Irving | WDC | Sell S | August 11, 2026 | August 12, 2026 | 1d | 1,880 | $445 | $836K | 10b5-1 plan | Form 4 ↗ | |
| Tan Irving | WDC | Sell S | August 11, 2026 | August 12, 2026 | 1d | 1,840 | $443 | $816K | 10b5-1 plan | Form 4 ↗ | |
| Tan Irving | WDC | Sell S | August 11, 2026 | August 12, 2026 | 1d | 989 | $442 | $437K | 10b5-1 plan | Form 4 ↗ | |
| Tan Irving | WDC | Sell S | August 11, 2026 | August 12, 2026 | 1d | 2,478 | $441 | $1.1M | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 32 | $465 | $15K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 160 | $462 | $74K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 199 | $461 | $92K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 248 | $460 | $114K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 529 | $459 | $243K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 328 | $457 | $150K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 312 | $457 | $142K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 304 | $456 | $138K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 128 | $454 | $58K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 144 | $453 | $65K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 106 | $452 | $48K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 70 | $451 | $32K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 39 | $449 | $18K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 41 | $448 | $18K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 32 | $447 | $14K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 32 | $445 | $14K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 32 | $442 | $14K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 96 | $441 | $42K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 64 | $439 | $28K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 118 | $438 | $52K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 154 | $437 | $67K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 32 | $436 | $14K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 64 | $435 | $28K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 112 | $434 | $49K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 38 | $432 | $16K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 115 | $431 | $50K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 103 | $430 | $44K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 93 | $429 | $40K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 115 | $428 | $49K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 64 | $426 | $27K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 32 | $425 | $14K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | July 28, 2026 | July 29, 2026 | 1d | 64 | $424 | $27K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | July 20, 2026 | July 21, 2026 | 1d | 13 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell S | July 21, 2026 | July 21, 2026 | 0d | 808 | $530 | $428K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Sell F | July 20, 2026 | July 21, 2026 | 1d | 1,309 | $487 | $638K | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Option / conversion M | July 20, 2026 | July 21, 2026 | 1d | 13 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Tregillis Cynthia L | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 19 | — | — | latederivative | Form 4 ↗ | |
| Tan Irving | WDC | Option / conversion M | June 20, 2026 | June 22, 2026 | 2d | 52 | — | — | derivative | Form 4 ↗ | |
| Tan Irving | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 57 | — | — | latederivative | Form 4 ↗ | |
| Tan Irving | WDC | Sell F | June 20, 2026 | June 22, 2026 | 2d | 1,090 | $746 | $813K | Form 4 ↗ | ||
| Tan Irving | WDC | Option / conversion M | June 20, 2026 | June 22, 2026 | 2d | 52 | — | — | Form 4 ↗ | ||
| STREETER STEPHANIE A | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 0 | — | — | latederivative | Form 4 ↗ | |
| Shihab Ahmed Mohammed | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 28 | — | — | latederivative | Form 4 ↗ | |
| Shihab Ahmed Mohammed | WDC | Option / conversion M | June 17, 2026 | June 22, 2026 | 5d | 52 | — | — | latederivative | Form 4 ↗ | |
| Shihab Ahmed Mohammed | WDC | Sell F | June 17, 2026 | June 22, 2026 | 5d | 5,149 | $712 | $3.7M | late | Form 4 ↗ | |
| Shihab Ahmed Mohammed | WDC | Option / conversion M | June 17, 2026 | June 22, 2026 | 5d | 51 | — | — | late | Form 4 ↗ | |
| Sennesael Kris | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 28 | — | — | latederivative | Form 4 ↗ | |
| Oulman Roxanne | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 0 | — | — | latederivative | Form 4 ↗ | |
| MASSENGILL MATTHEW E | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 6 | — | — | latederivative | Form 4 ↗ | |
| KIDDOO BRUCE E | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 0 | — | — | latederivative | Form 4 ↗ | |
| Gubbi Vidyadhara K | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 14 | — | — | latederivative | Form 4 ↗ | |
| Feller Brad | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 2 | — | — | latederivative | Form 4 ↗ | |
| DOLUCA TUNC | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 0 | — | — | latederivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Option / conversion M | June 20, 2026 | June 22, 2026 | 2d | 8 | — | — | derivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 12 | — | — | latederivative | Form 4 ↗ | |
| Davis Brian Scott | WDC | Sell F | June 20, 2026 | June 22, 2026 | 2d | 961 | $746 | $717K | Form 4 ↗ | ||
| Davis Brian Scott | WDC | Option / conversion M | June 20, 2026 | June 22, 2026 | 2d | 7 | — | — | Form 4 ↗ | ||
| Das Manuvir | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 0 | — | — | latederivative | Form 4 ↗ | |
| Cole Martin I | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 0 | — | — | latederivative | Form 4 ↗ | |
| Alexy Kimberly | WDC | Other A | June 17, 2026 | June 22, 2026 | 5d | 0 | — | — | latederivative | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 16 | $545 | $8,719 | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 48 | $544 | $26K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 48 | $543 | $26K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 16 | $541 | $8,655 | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 32 | $540 | $17K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 57 | $539 | $31K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 71 | $538 | $38K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 112 | $536 | $60K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 16 | $535 | $8,558 | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 48 | $534 | $26K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 96 | $533 | $51K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 48 | $532 | $26K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 64 | $530 | $34K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 48 | $528 | $25K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 128 | $527 | $67K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 16 | $526 | $8,409 | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 48 | $525 | $25K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 32 | $523 | $17K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 160 | $521 | $83K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 48 | $519 | $25K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 216 | $518 | $112K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 112 | $517 | $58K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 392 | $515 | $202K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 296 | $514 | $152K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 316 | $513 | $162K | 10b5-1 plan | Form 4 ↗ | |
| Cole Martin I | WDC | Sell S | June 9, 2026 | June 11, 2026 | 2d | 310 | $512 | $159K | 10b5-1 plan | Form 4 ↗ |
Showing the 200 most recent of 562.
Federal contracts (USAspending, awards started in the last 180 days)
No contract award starting in the last 180 days was found for a recipient named exactly "WESTERN DIGITAL CORP". Subsidiaries and differently-spelled recipients are not matched — search contracts.
Lobbying (Senate LDA, as client)
| Period | Registrant | Primary issue | Amount | Source |
|---|---|---|---|---|
| 2026 Q3 | WESTERN DIGITAL CORPORATION | Natural Resources | $310,000 | LDA ↗ |
| 2026 Q3 | FORBES-TATE | Budget/Appropriations | $50,000 | LDA ↗ |
| 2026 Q2 | WESTERN DIGITAL CORPORATION | Taxation/Internal Revenue Code | $290,000 | LDA ↗ |
| 2026 Q2 | J.A. GREEN AND COMPANY (FORMERLY LLC) | — | $60,000 | LDA ↗ |
| 2026 Q2 | FORBES-TATE | Budget/Appropriations | $50,000 | LDA ↗ |
| 2026 Q1 | WESTERN DIGITAL CORPORATION | Taxation/Internal Revenue Code | $300,000 | LDA ↗ |
| 2026 Q1 | J.A. GREEN AND COMPANY (FORMERLY LLC) | — | $60,000 | LDA ↗ |
| 2026 Q1 | FORBES-TATE | Budget/Appropriations | $50,000 | LDA ↗ |
| 2026 Q1 | J.A. GREEN AND COMPANY (FORMERLY LLC) | Defense | — | LDA ↗ |
| 2026 Q1 | BGR GOVERNMENT AFFAIRS | — | — | LDA ↗ |
| 2025 Q4 | WESTERN DIGITAL CORPORATION | Taxation/Internal Revenue Code | $140,000 | LDA ↗ |
| 2025 Q4 | BGR GOVERNMENT AFFAIRS | Trade (domestic/foreign) | $60,000 | LDA ↗ |
| 2025 Q4 | THE WESSEL GROUP INCORPORATED | — | — | LDA ↗ |
| 2025 Q3 | WESTERN DIGITAL CORPORATION | Budget/Appropriations | $120,000 | LDA ↗ |
| 2025 Q3 | BGR GOVERNMENT AFFAIRS | Trade (domestic/foreign) | $60,000 | LDA ↗ |
| 2025 Q3 | THE WESSEL GROUP INCORPORATED | Manufacturing | $20,000 | LDA ↗ |
| 2025 Q1 | FORBES-TATE | Budget/Appropriations | — | LDA ↗ |
Related companies
Companies whose stock was traded by the same people who traded WDC, by number of filers in common. It shows overlap in public filings and nothing else.
- CrowdStrike Holdings, Inc. CRWD 2 filers in common
- Uber Technologies, Inc UBER 2 filers in common
- Datadog, Inc. DDOG 2 filers in common
- Arista Networks, Inc. ANET 2 filers in common
- AppLovin Corp APP 2 filers in common
- Meta Platforms, Inc. META 2 filers in common
- TransDigm Group INC TDG 2 filers in common
- MICRON TECHNOLOGY INC MU 2 filers in common
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Lobbying disclosure reports Reports are due about 20 days after each quarter ends.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| House Clerk, periodic transaction reports | 2 | 2 | September 4, 2026 | October 12, 2026 | House Clerk search |
| Senate eFD, periodic transaction reports | 1 | 1 | July 21, 2026 | July 21, 2026 | Senate eFD search |
| SEC EDGAR, Form 4 | 149 | 562 | October 21, 2025 | September 21, 2026 | Form 4 list on EDGAR |
| Lobbying disclosure filings | 17 filings | — | — | — | LDA.gov search |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insiders and their transactions come from SEC EDGAR Form 4 filings for this issuer. Contracts and lobbying are matched by exact normalized name (suffixes like Inc./Corp. ignored) to USAspending recipients and LDA clients — a conservative match that misses subsidiaries on purpose. See methodology and corrections.
Not investment advice. Public records shown as filed; no recommendation is made or implied.