Tregillis Cynthia L

Officer · WDC

As of 2026-09-27, Tregillis Cynthia L has 112 Form 4 transactions on record across 1 company — 84 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Pattern in the record: open-market sales filed in August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $136KIndirect: $0$136Kas of 2026-09-27
  • Direct $136K
  • Indirect $0
WDCdirect298 sh$136K

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

WDC · 112 trades
2026-09-17: Award / grant, 27 sh ($0)2026-09-04: Sale, 432 sh ($195K)2026-09-03: Withheld for tax, 700 sh ($309K)2026-09-03: Option exercise, 7 sh ($0)2026-09-03: Option exercise, 7 sh ($0)2026-08-27: Sale, 1,007 sh ($482K)2026-08-26: Withheld for tax, 1,631 sh ($765K)2026-08-26: Sale, 476 sh ($215K)2026-08-26: Option exercise, 9 sh ($0)2026-08-26: Option exercise, 9 sh ($0)2026-08-25: Withheld for tax, 771 sh ($348K)2026-08-25: Option exercise, 7 sh ($0)2026-08-25: Option exercise, 8 sh ($0)2026-08-25: Award / grant, 3,878 sh ($0)2026-08-24: Sale, 684 sh ($305K)2026-08-21: Withheld for tax, 1,109 sh ($510K)2026-08-21: Sale, 235 sh ($112K)2026-08-21: Option exercise, 11 sh ($0)2026-08-21: Option exercise, 11 sh ($0)2026-08-20: Withheld for tax, 379 sh ($178K)2026-08-20: Option exercise, 3 sh ($0)2026-08-20: Option exercise, 4 sh ($0)2026-07-21: Sale, 808 sh ($428K)2026-07-20: Withheld for tax, 1,309 sh ($638K)2026-07-20: Option exercise, 13 sh ($0)2026-07-20: Option exercise, 13 sh ($0)2026-06-17: Award / grant, 19 sh ($0)2026-06-05: Sale, 432 sh ($236K)2026-06-03: Withheld for tax, 699 sh ($415K)2026-06-03: Option exercise, 7 sh ($0)2026-06-03: Option exercise, 6 sh ($0)2026-05-27: Sale, 214 sh ($115K)2026-05-25: Withheld for tax, 771 sh ($373K)2026-05-25: Option exercise, 7 sh ($0)2026-05-25: Option exercise, 7 sh ($0)2026-05-22: Sale, 308 sh ($150K)2026-05-21: Withheld for tax, 1,108 sh ($539K)2026-05-21: Sale, 106 sh ($49K)2026-05-21: Option exercise, 11 sh ($0)2026-05-21: Option exercise, 10 sh ($0)2026-05-20: Withheld for tax, 379 sh ($174K)2026-05-20: Option exercise, 3 sh ($0)2026-05-20: Option exercise, 4 sh ($0)2026-04-21: Sale, 363 sh ($137K)2026-04-20: Withheld for tax, 1,308 sh ($489K)2026-04-20: Option exercise, 12 sh ($0)2026-04-20: Option exercise, 12 sh ($0)2026-03-18: Award / grant, 41 sh ($0)2026-03-04: Sale, 8,547 sh ($2.3M)2026-03-04: Sale, 777 sh ($200K)2026-03-03: Withheld for tax, 2,798 sh ($701K)2026-03-03: Option exercise, 23 sh ($0)2026-03-03: Option exercise, 24 sh ($0)2026-02-26: Sale, 214 sh ($61K)2026-02-25: Withheld for tax, 770 sh ($224K)2026-02-25: Option exercise, 6 sh ($0)2026-02-25: Option exercise, 7 sh ($0)2026-02-24: Sale, 308 sh ($87K)2026-02-23: Sale, 130 sh ($37K)2026-02-21: Withheld for tax, 1,109 sh ($317K)2026-02-21: Option exercise, 9 sh ($0)2026-02-21: Option exercise, 9 sh ($0)2026-02-20: Withheld for tax, 244 sh ($70K)2026-02-20: Option exercise, 3 sh ($0)2026-02-20: Option exercise, 3 sh ($0)2026-02-06: Sale, 6,780 sh ($1.8M)2026-01-21: Sale, 447 sh ($102K)2026-01-20: Withheld for tax, 842 sh ($188K)2026-01-20: Option exercise, 11 sh ($0)2026-01-20: Option exercise, 11 sh ($0)2025-12-18: Award / grant, 82 sh ($0)2025-12-02: Sale, 2,801 sh ($450K)2025-11-25: Withheld for tax, 770 sh ($120K)2025-11-25: Option exercise, 5 sh ($0)2025-11-25: Option exercise, 5 sh ($0)2025-11-21: Withheld for tax, 1,108 sh ($154K)2025-11-21: Option exercise, 7 sh ($0)2025-11-21: Option exercise, 7 sh ($0)2025-11-20: Withheld for tax, 379 sh ($53K)2025-11-20: Option exercise, 3 sh ($0)2025-11-20: Option exercise, 2 sh ($0)2025-10-20: Withheld for tax, 1,307 sh ($159K)2025-10-20: Option exercise, 9 sh ($0)2025-10-20: Option exercise, 8 sh ($0)2025-09-18: Award / grant, 118 sh ($0)2025-08-27: Withheld for tax, 266 sh ($21K)2025-08-27: Option exercise, 1 sh ($0)2025-08-27: Option exercise, 1 sh ($0)2025-08-26: Award / grant, 16,554 sh ($0)2025-08-25: Withheld for tax, 769 sh ($61K)2025-08-25: Option exercise, 3 sh ($0)2025-08-25: Option exercise, 3 sh ($0)2025-08-22: Sale, 14,067 sh ($1.1M)2025-08-21: Withheld for tax, 4,428 sh ($331K)2025-08-21: Option exercise, 18 sh ($0)2025-08-21: Option exercise, 19 sh ($0)2025-08-20: Withheld for tax, 2,565 sh ($194K)2025-08-20: Option exercise, 11 sh ($0)2025-08-20: Option exercise, 10 sh ($0)2025-07-20: Withheld for tax, 1,306 sh ($89K)2025-07-20: Option exercise, 5 sh ($0)2025-07-20: Option exercise, 6 sh ($0)2025-06-20: Withheld for tax, 204 sh ($12K)2025-06-20: Option exercise, 1 sh ($0)2025-06-20: Option exercise, 0 sh ($0)2025-06-18: Award / grant, 223 sh ($0)2025-05-27: Withheld for tax, 267 sh ($14K)2025-05-25: Withheld for tax, 768 sh ($39K)2025-05-20: Withheld for tax, 379 sh ($19K)2025-04-20: Withheld for tax, 1,172 sh ($43K)2025-03-06: Withheld for tax, 875 sh ($36K)2025-03-03: Award / grant, 21,272 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-09-04WDCSale432 @ $451.20$195K−0.4% of holding111,030Form 4
2026-08-27WDCSale1,007 @ $478.36$482K−0.9% of holding112,155Form 4
2026-08-26WDCSale476 @ $450.78$215K−0.4% of holding114,784Form 4
2026-08-24WDCSale684 @ $446.17$305K−0.6% of holding112,146Form 4
2026-08-21WDCSale235 @ $477.27$112K−0.2% of holding113,928Form 4
2026-07-21WDCSale808 @ $529.63$428K−0.7% of holding114,539Form 4
2026-06-05WDCSale432 @ $545.60$236K−0.4% of holding116,643Form 4
2026-05-27WDCSale214 @ $539.63$115K−0.2% of holding117,157Form 4
2026-05-22WDCSale308 @ $488.61$150K−0.3% of holding118,135Form 4
2026-05-21WDCSale106 @ $458.87$49K−0.1% of holding118,443Form 4
2026-04-21WDCSale363 @ $377.09$137K−0.3% of holding120,023Form 4
2026-03-04WDCSale8,547 @ $269.22$2.3M−6.6% of holding121,682Form 4
2026-03-04WDCSale777 @ $257.91$200K−0.6% of holding130,229Form 4
2026-02-26WDCSale214 @ $286.11$61K−0.2% of holding133,781Form 4
2026-02-24WDCSale308 @ $281.70$87K−0.2% of holding134,759Form 4
2026-02-23WDCSale130 @ $283.83$37K−0.1% of holding135,067Form 4
2026-02-06WDCSale6,780 @ $270.49$1.8M−4.7% of holding136,538Form 4
2026-01-21WDCSale447 @ $229.00$102K−0.3% of holding143,318Form 4
2025-12-02WDCSale2,801 @ $160.57$450K−1.9% of holding144,596Form 4
2025-08-22WDCSale14,067 @ $74.78$1.1M−9.4% of holding135,351Form 4
92 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-17WDCAward / grant27298Form 4
2026-09-03WDCWithheld for tax700111,462Form 4
2026-09-03WDCOption exercise7270Form 4
2026-09-03WDCOption exercise7112,162Form 4
2026-08-26WDCWithheld for tax1,631113,162Form 4
2026-08-26WDCOption exercise9114,793Form 4
2026-08-26WDCOption exercise9278Form 4
2026-08-25WDCWithheld for tax771111,382Form 4
2026-08-25WDCOption exercise7112,153Form 4
2026-08-25WDCOption exercise8287Form 4
2026-08-25WDCAward / grant3,878115,260Form 4
2026-08-21WDCWithheld for tax1,109112,830Form 4
2026-08-21WDCOption exercise11295Form 4
2026-08-21WDCOption exercise11113,939Form 4
2026-08-20WDCWithheld for tax379114,163Form 4
2026-08-20WDCOption exercise3114,542Form 4
2026-08-20WDCOption exercise4306Form 4
2026-07-20WDCWithheld for tax1,309115,347Form 4
2026-07-20WDCOption exercise13310Form 4
2026-07-20WDCOption exercise13116,656Form 4
2026-06-17WDCAward / grant19323Form 4
2026-06-03WDCWithheld for tax699117,075Form 4
2026-06-03WDCOption exercise7304Form 4
2026-06-03WDCOption exercise6117,774Form 4
2026-05-25WDCWithheld for tax771117,371Form 4
2026-05-25WDCOption exercise7118,142Form 4
2026-05-25WDCOption exercise7311Form 4
2026-05-21WDCWithheld for tax1,108118,549Form 4
2026-05-21WDCOption exercise11318Form 4
2026-05-21WDCOption exercise10119,657Form 4
2026-05-20WDCWithheld for tax379119,647Form 4
2026-05-20WDCOption exercise3120,026Form 4
2026-05-20WDCOption exercise4329Form 4
2026-04-20WDCWithheld for tax1,308120,386Form 4
2026-04-20WDCOption exercise12333Form 4
2026-04-20WDCOption exercise12121,694Form 4
2026-03-18WDCAward / grant41345Form 4
2026-03-03WDCWithheld for tax2,798131,006Form 4
2026-03-03WDCOption exercise23133,804Form 4
2026-03-03WDCOption exercise24304Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.