Tregillis Cynthia L — SEC Form 4 filings
SEC reporting owner CIK 2057088. 32 Form 4 filings on record with FilingPulse; latest filed 2026-09-08.
Transaction summary — filings shown
Covers all 32 filings on record, filed 2025-03-05 to 2026-09-08. 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): 20 legs across 15 filings — 39,136 shares, $8,547,912 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 91.
- Largest priced transaction: sale of 8,547 shares @ $269.22 ($2,300,986) in WESTERN DIGITAL CORP, filed 2026-03-05.
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) | Chief Legal Officer & Corp Sec | 32 | — | 20 legs · 39,136 sh · $8,547,912 | 91 |
Form 4 filings — Tregillis Cynthia L
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-08 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 7 @ $0 · Tax withholding (F): 700 @ $441.57 · Sale (S): 432 @ $451.20 · Option exercise (M): 7.06 (derivative) @ $0 | EDGAR |
| 2026-08-27 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 7 @ $0 · Tax withholding (F): 771 @ $450.75 · Grant/award (A): 3,878 @ $0 · Sale (S): 476 @ $450.78 · Option exercise (M): 9 @ $0 · Tax withholding (F): 1,631 @ $468.88 · +3 more | EDGAR |
| 2026-08-24 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 3 @ $0 · Tax withholding (F): 379 @ $469.05 · Sale (S): 235 @ $477.27 · Option exercise (M): 11 @ $0 · Tax withholding (F): 1,109 @ $459.44 · Sale (S): 684 @ $446.17 · +2 more | EDGAR |
| 2026-07-21 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 13 @ $0 · Tax withholding (F): 1,309 @ $487.42 · Sale (S): 808 @ $529.63 · Option exercise (M): 13.20 (derivative) @ $0 | EDGAR |
| 2026-06-22 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 18.64 (derivative) @ $0 | EDGAR |
| 2026-06-05 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 6 @ $0 · Tax withholding (F): 699 @ $594.11 · Sale (S): 432 @ $545.60 · Option exercise (M): 6.68 (derivative) @ $0 | EDGAR |
| 2026-05-27 | 4 | WESTERN DIGITAL CORP (WDC) | Sale (S): 308 @ $488.61 · Option exercise (M): 7 @ $0 · Tax withholding (F): 771 @ $484.28 · Sale (S): 214 @ $539.63 · Option exercise (M): 7.36 (derivative) @ $0 | EDGAR |
| 2026-05-22 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 3 @ $0 · Tax withholding (F): 379 @ $459.62 · Option exercise (M): 10 @ $0 · Tax withholding (F): 1,108 @ $486.46 · Sale (S): 106 @ $458.87 · Option exercise (M): 3.63 (derivative) @ $0 · +1 more | EDGAR |
| 2026-04-22 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 12 @ $0 · Tax withholding (F): 1,308 @ $374.11 · Sale (S): 363 @ $377.09 · Option exercise (M): 12.49 (derivative) @ $0 | EDGAR |
| 2026-03-19 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 40.71 (derivative) @ $0 | EDGAR |
| 2026-03-05 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 23 @ $0 · Tax withholding (F): 2,798 @ $250.61 · Sale (S): 777 @ $257.91 · Sale (S): 8,547 @ $269.22 · Option exercise (M): 23.81 (derivative) @ $0 | EDGAR |
| 2026-02-27 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 6 @ $0 · Tax withholding (F): 770 @ $290.95 · Sale (S): 214 @ $286.11 · Option exercise (M): 6.56 (derivative) @ $0 | EDGAR |
| 2026-02-24 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 3 @ $0 · Tax withholding (F): 244 @ $285.52 · Option exercise (M): 9 @ $0 · Tax withholding (F): 1,109 @ $285.52 · Sale (S): 130 @ $283.83 · Sale (S): 308 @ $281.70 · +2 more | EDGAR |
| 2026-02-06 | 4 | WESTERN DIGITAL CORP (WDC) | Sale (S): 6,780 @ $270.49 | EDGAR |
| 2026-01-21 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 11 @ $0 · Tax withholding (F): 842 @ $222.97 · Sale (S): 447 @ $229 · Option exercise (M): 11.13 (derivative) @ $0 | EDGAR |
| 2025-12-22 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 82.42 (derivative) @ $0 | EDGAR |
| 2025-12-03 | 4 | WESTERN DIGITAL CORP (WDC) | Sale (S): 2,801 @ $160.57 | EDGAR |
| 2025-11-26 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 5 @ $0 · Tax withholding (F): 770 @ $155.41 · Option exercise (M): 5.16 (derivative) @ $0 | EDGAR |
| 2025-11-24 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 2 @ $0 · Tax withholding (F): 379 @ $140.23 · Option exercise (M): 7 @ $0 · Tax withholding (F): 1,108 @ $139.19 · Option exercise (M): 2.54 (derivative) @ $0 · Option exercise (M): 7.43 (derivative) @ $0 | EDGAR |
| 2025-10-21 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 8 @ $0 · Tax withholding (F): 1,307 @ $121.53 · Option exercise (M): 8.76 (derivative) @ $0 | EDGAR |
| 2025-09-22 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 118.26 (derivative) @ $0 | EDGAR |
| 2025-08-28 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 16,554 @ $0 · Option exercise (M): 1 @ $0 · Tax withholding (F): 266 @ $80.67 · Option exercise (M): 1.14 (derivative) @ $0 | EDGAR |
| 2025-08-27 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 3 @ $0 · Tax withholding (F): 769 @ $79.22 · Option exercise (M): 3.30 (derivative) @ $0 | EDGAR |
| 2025-08-25 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 18 @ $0 · Tax withholding (F): 4,428 @ $74.66 · Sale (S): 14,067 @ $74.78 · Option exercise (M): 18.99 (derivative) @ $0 | EDGAR |
| 2025-08-21 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 10 @ $0 · Tax withholding (F): 2,565 @ $75.64 · Option exercise (M): 11.01 (derivative) @ $0 | EDGAR |
| 2025-07-22 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 5 @ $0 · Tax withholding (F): 1,306 @ $68 · Option exercise (M): 5.60 (derivative) @ $0 | EDGAR |
| 2025-06-23 | 4 | WESTERN DIGITAL CORP (WDC) | Option exercise (M): 0 @ $0 · Tax withholding (F): 204 @ $59.29 · Grant/award (A): 222.72 (derivative) @ $0 · Option exercise (M): 0.88 (derivative) @ $0 | EDGAR |
| 2025-05-28 | 4 | WESTERN DIGITAL CORP (WDC) | Tax withholding (F): 768 @ $50.18 · Tax withholding (F): 267 @ $51.82 | EDGAR |
| 2025-05-22 | 4 | WESTERN DIGITAL CORP (WDC) | Tax withholding (F): 379 @ $50.63 | EDGAR |
| 2025-04-22 | 4 | WESTERN DIGITAL CORP (WDC) | Tax withholding (F): 1,172 @ $36.51 | EDGAR |
| 2025-03-10 | 4 | WESTERN DIGITAL CORP (WDC) | Tax withholding (F): 875 @ $41.45 | EDGAR |
| 2025-03-05 | 4 | WESTERN DIGITAL CORP (WDC) | Grant/award (A): 21,272 @ $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=2057088 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →