Company profile
Western Digital Corp Insider Trading
WDCEvery SEC Form 4 insider trading filing for Western Digital Corp (WDC) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Computer Storage Devices
- CIK
- 0000106040
- Filings
- 340
- Insiders
- 25
- Last filing
- 2026-09-04
Activity summary
Recent insider activity is bullish. Over the last 30 days, 27 insiders purchased shares versus 16 sales. Buying was led by Cynthia L Tregillis.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Western Digital Corp insiders were net sellers in every quarter shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $42.2M.
90 day insight
Over the last 90 days, Western Digital Corp insiders bought $0 (27 transactions) and sold $13.5M (16 transactions).
- Most active insider: Cynthia L Tregillis with 12 transactions totaling $2.3M.
- Largest single sale: $2.0M by Kris Sennesael on Aug 26, 2026.
- 16% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 4, 2026 | Cynthia L Tregillis | WDC | Sale10b5 | 432 | $451.20 | $195K |
| Sep 4, 2026 | Vidyadhara K Gubbi | WDC | Sale | 1,795 | $459.87 | $825K |
| Sep 3, 2026 | Cynthia L Tregillis | WDC | Option Exercise | 7 | — | — |
| Sep 3, 2026 | Vidyadhara K Gubbi | WDC | Option Exercise | 14.117 | — | — |
| Sep 3, 2026 | Brian Scott Davis | WDC | Option Exercise | 7 | — | — |
45 more transactions hidden
Free account · No credit card required
Building something? Get API access →
Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=WDC" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Western Digital Corp as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →