MASSENGILL MATTHEW E — SEC Form 4 filings
SEC reporting owner CIK 1232826. 9 Form 4 filings on record with FilingPulse; latest filed 2026-06-22.
Transaction summary — filings shown
Covers all 9 filings on record, filed 2024-11-22 to 2026-06-22. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 11 legs across 1 filing — 36,926 shares, $9,616,466 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 8.
- Largest priced transaction: sale of 7,000 shares @ $258.67 ($1,810,703) in WESTERN DIGITAL CORP, filed 2026-02-06.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| WESTERN DIGITAL CORP (WDC) | Director | 8 | — | 11 legs · 36,926 sh · $9,616,466 | 7 |
| Sandisk Corp (SNDK) | Director | 1 | — | — | 1 |
Form 4 filings — MASSENGILL MATTHEW E
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-22 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 6.11 (derivative) @ $0 | EDGAR |
| 2026-03-19 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 11.88 (derivative) @ $0 | EDGAR |
| 2026-02-06 | 4 | WESTERN DIGITAL CORP (WDC) | Sale (S): 2,600 @ $256.63 · Sale (S): 4,411 @ $257.69 · Sale (S): 7,000 @ $258.67 · Sale (S): 4,915 @ $259.59 · Sale (S): 5,987 @ $260.57 · Sale (S): 3,597 @ $261.71 · +5 more | EDGAR |
| 2025-12-22 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 20.69 (derivative) @ $0 | EDGAR |
| 2025-11-21 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 1,585 @ $0 | EDGAR |
| 2025-09-22 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 26.02 (derivative) @ $0 | EDGAR |
| 2025-06-23 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 46.14 (derivative) @ $0 | EDGAR |
| 2025-03-04 | 4 | Sandisk Corp (SNDK) | Grant/award (A): 4,840 @ $0 | EDGAR |
| 2024-11-22 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 4,542 @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
Need this as JSON?
GET https://api.filingpulse.io/v1/insider-trades?owner_cik=1232826 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →