INVESTABOT
Equity Research
XNAS · COMPUTER STORAGE DEVICES
Includes notes from domestic 8-K and foreign private issuer 6-K disclosures.
Western Digital (WDC) had 2 Form 144 pre-sale notices filed on 2026-09-04. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-08-31. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-08-27. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-08-24. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-08-21. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-08-11. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-07-21. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-05-04. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-05-11. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-06-09. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-06-05. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-06-01. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-05-28. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-05-27. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-05-22. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
Western Digital (WDC) had 1 Form 144 pre-sale notice filed on 2026-05-21. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At least one…
TL;DR: Western Digital posted Q3 FY2026 revenue of $3.34B, up 45% from $2.29B in the year-ago quarter, with GAAP operating margin expanding to 35.7%.
open-market Form 4 only - grants, exercises, tax withholding excluded
0 buyers - 6 unique sellers · 3 accumulating - 10 trimming - 1 unchanged
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| September 20, 2026 | Tan Irving | Chief Executive Officer | OPTION_EXERCISE | -56.76 | — | — |
| September 20, 2026 | Tan Irving | Chief Executive Officer | TAX_WITHHOLD | -1,091.04 | $441 | ~$0.5M |
| September 20, 2026 | Tan Irving | Chief Executive Officer | OPTION_EXERCISE | 56.76 | — | — |
| September 17, 2026 | Feller Brad | SVP, Global Accounting & Chief | GRANT | 4.24 | — | — |
| September 17, 2026 | Gubbi Vidyadhara K | Chief of Global Operations | GRANT | 21.02 | — | — |
| September 17, 2026 | Kiddoo Bruce E | — | GRANT | 0.56 | — | — |
| September 17, 2026 | Massengill Matthew E | — | GRANT | 10.27 | — | — |
| September 17, 2026 | Oulman Roxanne | — | GRANT | 0.56 | — | — |
| September 17, 2026 | Sennesael Kris | Chief Financial Officer | GRANT | 46.51 | — | — |
| September 17, 2026 | Shihab Ahmed Mohammed | Chief Product Officer | OPTION_EXERCISE | -56.52 | — | — |
| September 17, 2026 | Shihab Ahmed Mohammed | Chief Product Officer | GRANT | 42.2 | — | — |
| September 17, 2026 | Shihab Ahmed Mohammed | Chief Product Officer | TAX_WITHHOLD | -5,150 | $424 | ~$2.2M |
| September 17, 2026 | Shihab Ahmed Mohammed | Chief Product Officer | OPTION_EXERCISE | 56 | — | — |
| September 17, 2026 | Streeter Stephanie A | — | GRANT | 0.56 | — | — |
| September 17, 2026 | Tan Irving | Chief Executive Officer | GRANT | 83.3 | — | — |
| September 17, 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | GRANT | 27.38 | — | — |
| September 4, 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | SELL | -432 | $451 | ~$0.2M |
| September 4, 2026 | Gubbi Vidyadhara K | Chief of Global Operations | SELL | -1,795 | $460 | ~$0.8M |
| September 3, 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | OPTION_EXERCISE | 7 | — | — |
| September 3, 2026 | Tregillis Cynthia L | Chief Legal Officer & Corp Sec | TAX_WITHHOLD | -700 | $442 | ~$0.3M |
| Date | Filer | Relationship | Est. shares | Filing |
|---|---|---|---|---|
| September 4, 2026 | Cynthia Lock Tregillis | — | 432 | SEC |
| September 4, 2026 | Vidyadhara K Gubbi | — | 1,795 | SEC |
| August 31, 2026 | Streeter Stephanie A | — | 10,000 | SEC |
| August 27, 2026 | Cynthia Lock Tregillis | — | 1,007 | SEC |
| August 26, 2026 | — | — | — | SEC |
| August 24, 2026 | Cynthia Lock Tregillis | — | 684 | SEC |
| August 21, 2026 | Cynthia Lock Tregillis | — | 235 | SEC |
| August 11, 2026 | Irving Tan | — | 20,000 | SEC |
| July 21, 2026 | Cynthia Lock Tregillis | — | 808 | SEC |
| June 9, 2026 | J.P. Morgan Securities LLC as agent and attorney-in-fact for Martin I Cole | — | — | SEC |
| Date | Insider | Title | Relationship | Shares | Filing |
|---|---|---|---|---|---|
| May 28, 2026 | — | — | — | — | SEC |
| Institution | Shares | Value ($) | Change % | Filing date |
|---|---|---|---|---|
| BlackRock | 47,418,613 | ~$21.3B | -23.9% | August 7, 2026 |
| Fidelity (FMR) | 40,679,645 | ~$16.8B | -21.1% | August 13, 2026 |
| JP Morgan Chase | 24,599,889 | ~$11.4B | 26.7% | August 12, 2026 |
| State Street | 35,226,615 | ~$10.7B | -29.0% | August 7, 2026 |
| BlackRock | 62,269,222 | ~$9.9B | 11.3% | May 13, 2026 |
| Fidelity (FMR) | 51,529,418 | ~$8.7B | -13.0% | May 15, 2026 |
| Vanguard Group | 42,348,660 | ~$7.3B | — | January 29, 2026 |
| BlackRock | 55,934,518 | ~$6.2B | — | February 12, 2026 |
| Fidelity (FMR) | 59,209,801 | ~$5.9B | — | February 17, 2026 |
| Citadel Advisors | 8,759,278 | ~$5.6B | -91.5% | August 14, 2026 |
| Morgan Stanley | 9,149,144 | ~$5.2B | 14.3% | August 13, 2026 |
| JP Morgan Chase | 19,416,148 | ~$4.4B | 34.0% | May 13, 2026 |
| State Street | 49,615,766 | ~$4.4B | -0.2% | May 15, 2026 |
| Goldman Sachs | 6,409,493 | ~$4.1B | 7.6% | August 14, 2026 |
| State Street | 49,695,954 | ~$2.9B | — | February 13, 2026 |
| JP Morgan Chase | 14,495,365 | ~$2.5B | — | February 11, 2026 |
| Citadel Advisors | 103,112,968 | ~$2.3B | 2.1% | May 15, 2026 |
| BlackRock | 28,885,156 | ~$2.2B | — | August 13, 2024 |
| Citadel Advisors | 100,959,866 | ~$2.2B | — | February 17, 2026 |
| DE Shaw | 156,516,730 | ~$2.2B | -3.0% | May 15, 2026 |