Skip to content

WDC · Western Digital Corp

Technology · −6.9% on Oct 16

☆ Add to watchlist

Updated Oct 17 · 6 feeds behind: Insider filings, 2 days, and 5 more · Every feed →

On this page

The market view

Price chart

The interactive WDC chart (by TradingView) loads here.

Our take

5 rules fired on WDC

In short: none of these rules has solid or some evidence yet, so they show no clear lean on WDC.

How each did in past tests, against similar stocks over 3 months. Past results don't predict future ones.

All 5 rules
The 0–100 score for WDC, and which of these rules are open on it right now
Members see one number for how strongly these rules agree on WDC, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
See pricing →
Already a member? Sign in

Compare with this company’s history

Is disclosure activity unusual?

See how many different insiders or members of Congress reported purchases or sales of WDC. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.

Latest period: Sep 21, 2026–Oct 18, 2026 · UTC dates · today is excluded

Congress sales

Sparse history

Only 0 of 12 earlier periods had activity. That is too little recurring activity to label this count unusual.

Latest 28 days
1
Earlier median
0
Earlier range
0–0
Distinct filers per 28 daysScale: 0–1
Oct 20, 2025Oct 18, 2026
Earlier periodsLatest 28 daysEarlier median 0

Who appears in the latest period?

Up to three filers; one example disclosure each.

Inspect this period’s filings

The history behind this view

First stored company disclosure: Apr 24, 2020. Newest disclosure across this feed: Oct 15, 2026.

Earlier periods in the comparison: 12. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.

Exact counts, dates and filings for all four categories
Insider purchases · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–0.

Insider purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 20260Partial; excluded
Jun 29, 2026–Jul 26, 20260Within stored history
Jul 27, 2026–Aug 23, 20260Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Insider sales · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 2; range: 1–3.

Insider sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 20261Partial; excluded
Jun 29, 2026–Jul 26, 20261Within stored history
Jul 27, 2026–Aug 23, 20262Within stored history
Aug 24, 2026–Sep 20, 20263Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Congress purchases · Sparse history

Only 2 of 12 earlier periods had activity. That is too little recurring activity to label this count unusual. Earlier median: 0; range: 0–1.

Congress purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 20250Within stored history
Nov 17, 2025–Dec 14, 20250Within stored history
Dec 15, 2025–Jan 11, 20260Within stored history
Jan 12, 2026–Feb 8, 20260Within stored history
Feb 9, 2026–Mar 8, 20260Within stored history
Mar 9, 2026–Apr 5, 20260Within stored history
Apr 6, 2026–May 3, 20260Within stored history
May 4, 2026–May 31, 20260Within stored history
Jun 1, 2026–Jun 28, 20260Within stored history
Jun 29, 2026–Jul 26, 20261Within stored history
Jul 27, 2026–Aug 23, 20261Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Congress sales · Sparse history

Only 0 of 12 earlier periods had activity. That is too little recurring activity to label this count unusual. Earlier median: 0; range: 0–0.

Congress sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 20250Within stored history
Nov 17, 2025–Dec 14, 20250Within stored history
Dec 15, 2025–Jan 11, 20260Within stored history
Jan 12, 2026–Feb 8, 20260Within stored history
Feb 9, 2026–Mar 8, 20260Within stored history
Mar 9, 2026–Apr 5, 20260Within stored history
Apr 6, 2026–May 3, 20260Within stored history
May 4, 2026–May 31, 20260Within stored history
Jun 1, 2026–Jun 28, 20260Within stored history
Jun 29, 2026–Jul 26, 20260Within stored history
Jul 27, 2026–Aug 23, 20260Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period1Within stored history
How to read this comparison

The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.

Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.

These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.

Company timeline

What has been happening?

May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.

Company filings

Insiders

Public officials

Owners & lobbying

Public officials · Oct 2026

  1. Disclosed
    Gilbert Ray Cisneros Jr · Sale

    Transaction dated Sep 18, 2026

All 37 records in this snapshot
  1. Disclosed
    Gilbert Ray Cisneros Jr · Sale

    Transaction dated Sep 18, 2026

  2. Filed
  3. Filed
  4. Filed
  5. Disclosed
    Cynthia L Tregillis · Sale

    Transaction dated Sep 4, 2026

  6. Disclosed
    Vidyadhara K Gubbi · Sale

    Transaction dated Sep 4, 2026

  7. Filed
  8. Filed
  9. Disclosed
    Stephanie A Streeter · Sale

    Transaction dated Aug 31, 2026

  10. Disclosed
    Stephanie A Streeter · Sale

    Transaction dated Sep 1, 2026

  11. Disclosed
    Stephanie A Streeter · Sale

    Transaction dated Aug 31, 2026

  12. Filed
  13. Disclosed
    Cynthia L Tregillis · Sale

    Transaction dated Aug 27, 2026

  14. Disclosed
    Cynthia L Tregillis · Sale

    Transaction dated Aug 26, 2026

  15. Filed
  16. Filed
  17. Filed
  18. Filed
  19. Disclosed
    Cynthia L Tregillis · Sale

    Transaction dated Aug 21, 2026

  20. Disclosed
    Cynthia L Tregillis · Sale

    Transaction dated Aug 24, 2026

  21. Disclosed
    Gilbert Ray Cisneros Jr · Purchase

    Transaction dated Jul 17, 2026

  22. Disclosed
    Irving Tan · Sale

    Transaction dated Aug 11, 2026

  23. Disclosed
    Irving Tan · Sale

    Transaction dated Aug 11, 2026

  24. Disclosed
    Irving Tan · Sale

    Transaction dated Aug 11, 2026

  25. Disclosed
    Irving Tan · Sale

    Transaction dated Aug 11, 2026

  26. Disclosed
    Irving Tan · Sale

    Transaction dated Aug 11, 2026

  27. Disclosed
    Irving Tan · Sale

    Transaction dated Aug 11, 2026

  28. Disclosed
    Irving Tan · Sale

    Transaction dated Aug 11, 2026

  29. Disclosed
    Martin I Cole · Sale

    Transaction dated Jul 28, 2026

  30. Disclosed
    Martin I Cole · Sale

    Transaction dated Jul 28, 2026

  31. Disclosed
    Martin I Cole · Sale

    Transaction dated Jul 28, 2026

  32. Disclosed
    Martin I Cole · Sale

    Transaction dated Jul 28, 2026

  33. Disclosed
    Martin I Cole · Sale

    Transaction dated Jul 28, 2026

  34. Disclosed
    Martin I Cole · Sale

    Transaction dated Jul 28, 2026

  35. Disclosed
    Martin I Cole · Sale

    Transaction dated Jul 28, 2026

  36. Disclosed
    Alan Armstrong · Purchase

    Transaction dated Mar 27, 2026

  37. Record date
    Lobbying for Western Digital ↗

    $60K · by J.A. Green And Company (Formerly LLC)

Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.

Who's buying and selling · last 90 days

Congress

2 members bought, 1 sold · 1 Dem · 1 Rep

  1. ▼ SELLGilbert Ray Cisneros Jr Dem · House · CAWDC Western Digital Corp$1K–$15Kdisclosed Oct 9 · filed 21 days after the trade
  2. ▲ BUYGilbert Ray Cisneros Jr Dem · House · CAWDC Western Digital Corp$1K–$15Kdisclosed Aug 14 · filed 28 days after the trade
  3. ▲ BUYAlan Armstrong Rep · Senate · OKWDC Western Digital Corp$1K–$15Kdisclosed Jul 21 · filed 116 days after the trade · late 1 rule fired
See every Congress trade on WDC →

Company insiders

0 buys · 8 sells (49 filed lots) · $15.8M sold

  1. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$195Kdisclosed Sep 8 · filed 4 days after the trade
  2. ▼ SELLVidyadhara K Gubbi Chief of Global OperationsWDC Western Digital Corp$825Kdisclosed Sep 8 · filed 4 days after the trade
  3. ▼ SELLStephanie A Streeter DirectorWDC Western Digital Corp$897Kdisclosed Sep 2 · filed 2 days after the trade
  4. ▼ SELLStephanie A Streeter DirectorWDC Western Digital Corp$728Kdisclosed Sep 2 · filed 1 day after the trade
  5. ▼ SELLStephanie A Streeter DirectorWDC Western Digital Corp$894Kdisclosed Sep 2 · filed 2 days after the trade
  6. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$482Kdisclosed Aug 27 · filed the same day
  7. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$215Kdisclosed Aug 27 · filed 1 day after the trade
  8. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$112Kdisclosed Aug 24 · filed 3 days after the trade
  9. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$305Kdisclosed Aug 24 · filed the same day
  10. ▼ SELLIrving Tan Chief Executive OfficerWDC Western Digital Corp$1.1Mdisclosed Aug 12 · filed 1 day after the trade
See every insider trade on WDC →

Filings & events

Company filings (8-K) 70

Events the company must report to the SEC within days — results, deals, departures, restatements.

What it files 8-Ks about

  • Other events · item 8.0110
  • Quarterly or yearly results · item 2.029
  • Directors or officers joined, left or got new pay · item 5.027
  • Shared information with investors · item 7.015
  • Sold shares privately · item 3.025
  • Signed a major agreement · item 1.014

Filing red flags 15

Warning signs in the company's own SEC filings — going-concern doubts, control weaknesses, staff comment letters, late filings, restatements, Wells notices, clinical holds, dividend cuts.

Lobbying 20

Lobbying reports filed with the Senate for the company.

$1.1M across 20 reports

Issues named in the most reports

  • Trade (domestic/foreign) 15
  • Taxation/Internal Revenue Code 4
  • Environment/Superfund 4
  • Manufacturing 4
  • Defense 3

Planned insider sales (Form 144) 82

Notices insiders file before they sell certain shares, such as ones they got straight from the company.

9 in the last 90 days · 82 notices on file

The notices on file don't give the sale's size; each sale shows up under company insiders once it is reported.

5% owners (13D / 13G) 3

Investors who reported owning 5% or more — 13D for owners who may push for changes, 13G for owners who just hold.

Push for changes, or just hold?

  • 13D, may push for changes: 0 filings
  • 13G, just holds: 3 filings

Filed by Vanguard Capital Management LLC · Vanguard Portfolio Management LLC · Managed Account Advisors LLC

Biggest named funds (13F)

The largest WDC holdings among the well-known funds whose quarterly 13F filings we read — opens here.

Every disclosed trade on WDC

  1. ▼ SELLGilbert Ray Cisneros Jr Dem · House · CAWDC Western Digital Corp$1K–$15Kdisclosed Oct 9 · filed 21 days after the trade
  2. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$195Kdisclosed Sep 8 · filed 4 days after the trade
  3. ▼ SELLVidyadhara K Gubbi Chief of Global OperationsWDC Western Digital Corp$825Kdisclosed Sep 8 · filed 4 days after the trade
  4. ▼ SELLStephanie A Streeter DirectorWDC Western Digital Corp$897Kdisclosed Sep 2 · filed 2 days after the trade
  5. ▼ SELLStephanie A Streeter DirectorWDC Western Digital Corp$728Kdisclosed Sep 2 · filed 1 day after the trade
  6. ▼ SELLStephanie A Streeter DirectorWDC Western Digital Corp$894Kdisclosed Sep 2 · filed 2 days after the trade
  7. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$482Kdisclosed Aug 27 · filed the same day
  8. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$215Kdisclosed Aug 27 · filed 1 day after the trade
  9. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$112Kdisclosed Aug 24 · filed 3 days after the trade
  10. ▼ SELLCynthia L Tregillis Chief Legal Officer & Corp SecWDC Western Digital Corp$305Kdisclosed Aug 24 · filed the same day
  11. ▲ BUYGilbert Ray Cisneros Jr Dem · House · CAWDC Western Digital Corp$1K–$15Kdisclosed Aug 14 · filed 28 days after the trade
  12. ▼ SELLIrving Tan Chief Executive OfficerWDC Western Digital Corp$1.1Mdisclosed Aug 12 · filed 1 day after the trade
  13. ▼ SELLIrving Tan Chief Executive OfficerWDC Western Digital Corp$2.9Mdisclosed Aug 12 · filed 1 day after the trade
  14. ▼ SELLIrving Tan Chief Executive OfficerWDC Western Digital Corp$816Kdisclosed Aug 12 · filed 1 day after the trade
  15. ▼ SELLIrving Tan Chief Executive OfficerWDC Western Digital Corp$437Kdisclosed Aug 12 · filed 1 day after the trade
  16. ▼ SELLIrving Tan Chief Executive OfficerWDC Western Digital Corp$836Kdisclosed Aug 12 · filed 1 day after the trade
  17. ▼ SELLIrving Tan Chief Executive OfficerWDC Western Digital Corp$691Kdisclosed Aug 12 · filed 1 day after the trade
  18. ▼ SELLIrving Tan Chief Executive OfficerWDC Western Digital Corp$2.1Mdisclosed Aug 12 · filed 1 day after the trade
  19. ▼ SELLMartin I Cole DirectorWDC Western Digital Corp$48.6Kdisclosed Jul 29 · filed 1 day after the trade
  20. ▼ SELLMartin I Cole DirectorWDC Western Digital Corp$138Kdisclosed Jul 29 · filed 1 day after the trade
  21. ▼ SELLMartin I Cole DirectorWDC Western Digital Corp$18.4Kdisclosed Jul 29 · filed 1 day after the trade
  22. ▼ SELLMartin I Cole DirectorWDC Western Digital Corp$150Kdisclosed Jul 29 · filed 1 day after the trade
  23. ▼ SELLMartin I Cole DirectorWDC Western Digital Corp$31.6Kdisclosed Jul 29 · filed 1 day after the trade
  24. ▼ SELLMartin I Cole DirectorWDC Western Digital Corp$14.3Kdisclosed Jul 29 · filed 1 day after the trade
  25. ▼ SELLMartin I Cole DirectorWDC Western Digital Corp$27.8Kdisclosed Jul 29 · filed 1 day after the trade
See all 103 trades on WDC →
People & votes

Which members of Congress traded WDC, sponsored bills that touch it and voted on them — opens here.