Tregillis Cynthia L

Insider

Chief Legal Officer & Corp Sec

Trades at: WDC

30D 90D 1Y

Net shares · 365d

-35.5K

0 buy · 35.5K sell

Net value · 365d

-$6.8M

$0 in · $6.8M out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 35.5K sell

Trading track record · all companies

Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.

Transactions · 365d

Open-market Buys Sells All types

WDC Grant·A
Jun 17, 26

Chief Legal Officer & Corp Sec

$0

19 sh

Own +6%
WDC Sell·S
Jun 5, 26

Chief Legal Officer & Corp Sec · 10b5-1

$235.7K

432 sh · $545.60

Own -0%
WDC Exercise·M
Jun 3, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

7 sh

Own +2%
WDC Other·F
Jun 3, 26

Chief Legal Officer & Corp Sec · 10b5-1

$415.3K

699 sh · $594.11

Own -1%
WDC Exercise·M
Jun 3, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

6 sh

Own +0%
WDC Sell·S
May 27, 26

Chief Legal Officer & Corp Sec · 10b5-1

$266.0K

522 sh · $509.53 avg · 2 lots

Own -0%
WDC Exercise·M
May 25, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

7 sh

Own +2%
WDC Other·F
May 25, 26

Chief Legal Officer & Corp Sec · 10b5-1

$373.4K

771 sh · $484.28

Own -1%
WDC Exercise·M
May 25, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

7 sh

Own +0%
WDC Exercise·M
May 21, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

14 sh · 2 lots

Own +5%
WDC Sell·S
May 21, 26

Chief Legal Officer & Corp Sec · 10b5-1

$48.6K

106 sh · $458.87

Own -0%
WDC Other·F
May 21, 26

Chief Legal Officer & Corp Sec · 10b5-1

$713.2K

1.5K sh · $479.62 avg · 2 lots

Own -1%
WDC Exercise·M
May 21, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

13 sh · 2 lots

Own +0%
WDC Sell·S
Apr 21, 26

Chief Legal Officer & Corp Sec · 10b5-1

$136.9K

363 sh · $377.09

Own -0%
WDC Exercise·M
Apr 20, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

12 sh

Own +4%
WDC Other·F
Apr 20, 26

Chief Legal Officer & Corp Sec · 10b5-1

$489.3K

1.3K sh · $374.11

Own -1%
WDC Exercise·M
Apr 20, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

12 sh

Own +0%
WDC Grant·A
Mar 18, 26

Chief Legal Officer & Corp Sec

$0

41 sh

Own +13%
WDC Sell·S
Mar 4, 26

Chief Legal Officer & Corp Sec · 10b5-1

$2.5M

9.3K sh · $268.28 avg · 2 lots

Own -7%
WDC Exercise·M
Mar 3, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

24 sh

Own +8%
WDC Other·F
Mar 3, 26

Chief Legal Officer & Corp Sec · 10b5-1

$701.2K

2.8K sh · $250.61

Own -2%
WDC Exercise·M
Mar 3, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

23 sh

Own +0%
WDC Sell·S
Feb 26, 26

Chief Legal Officer & Corp Sec · 10b5-1

$61.2K

214 sh · $286.11

Own -0%
WDC Exercise·M
Feb 25, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

7 sh

Own +2%
WDC Exercise·M
Feb 25, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

6 sh

Own +0%
WDC Other·F
Feb 25, 26

Chief Legal Officer & Corp Sec · 10b5-1

$224.0K

770 sh · $290.95

Own -1%
WDC Sell·S
Feb 24, 26

Chief Legal Officer & Corp Sec · 10b5-1

$123.7K

438 sh · $282.33 avg · 2 lots

Own -0%
WDC Exercise·M
Feb 21, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

13 sh · 2 lots

Own +4%
WDC Exercise·M
Feb 21, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

12 sh · 2 lots

Own +0%
WDC Other·F
Feb 21, 26

Chief Legal Officer & Corp Sec · 10b5-1

$386.3K

1.4K sh · $285.52 avg · 2 lots

Own -1%
WDC Sell·S
Feb 6, 26

Chief Legal Officer & Corp Sec

$1.8M

6.8K sh · $270.49

Own -5%
WDC Sell·S
Jan 21, 26

Chief Legal Officer & Corp Sec · 10b5-1

$102.4K

447 sh · $229.00

Own -0%
WDC Exercise·M
Jan 20, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

11 sh

Own +3%
WDC Exercise·M
Jan 20, 26

Chief Legal Officer & Corp Sec · 10b5-1

$0

11 sh

Own +0%
WDC Other·F
Jan 20, 26

Chief Legal Officer & Corp Sec · 10b5-1

$187.7K

842 sh · $222.97

Own -1%
WDC Grant·A
Dec 18, 25

Chief Legal Officer & Corp Sec

$0

82 sh

Own +30%
WDC Sell·S
Dec 2, 25

Chief Legal Officer & Corp Sec

$449.8K

2.8K sh · $160.57

Own -2%
WDC Exercise·M
Nov 25, 25

Chief Legal Officer & Corp Sec

$0

5 sh

Own +2%
WDC Other·F
Nov 25, 25

Chief Legal Officer & Corp Sec

$119.7K

770 sh · $155.41

Own -1%
WDC Exercise·M
Nov 25, 25

Chief Legal Officer & Corp Sec

$0

5 sh

Own +0%
WDC Exercise·M
Nov 21, 25

Chief Legal Officer & Corp Sec

$0

10 sh · 2 lots

Own +4%
WDC Other·F
Nov 21, 25

Chief Legal Officer & Corp Sec

$207.4K

1.5K sh · $139.46 avg · 2 lots

Own -1%
WDC Exercise·M
Nov 21, 25

Chief Legal Officer & Corp Sec

$0

9 sh · 2 lots

Own +0%
WDC Exercise·M
Oct 20, 25

Chief Legal Officer & Corp Sec

$0

9 sh

Own +3%
WDC Other·F
Oct 20, 25

Chief Legal Officer & Corp Sec

$158.8K

1.3K sh · $121.53

Own -1%
WDC Exercise·M
Oct 20, 25

Chief Legal Officer & Corp Sec

$0

8 sh

Own +0%
WDC Grant·A
Sep 18, 25

Chief Legal Officer & Corp Sec

$0

118 sh

Own +65%
WDC Exercise·M
Aug 27, 25

Chief Legal Officer & Corp Sec

$0

1 sh

Own +1%
WDC Other·F
Aug 27, 25

Chief Legal Officer & Corp Sec

$21.5K

266 sh · $80.67

Own -0%
WDC Exercise·M
Aug 27, 25

Chief Legal Officer & Corp Sec

$0

1 sh

Own +0%
WDC Grant·A
Aug 26, 25

Chief Legal Officer & Corp Sec

$0

16.6K sh

Own +12%
WDC Exercise·M
Aug 25, 25

Chief Legal Officer & Corp Sec

$0

3 sh

Own +2%
WDC Exercise·M
Aug 25, 25

Chief Legal Officer & Corp Sec

$0

3 sh

Own +0%
WDC Other·F
Aug 25, 25

Chief Legal Officer & Corp Sec

$60.9K

769 sh · $79.22

Own -1%
WDC Sell·S
Aug 22, 25

Chief Legal Officer & Corp Sec · 10b5-1

$1.1M

14.1K sh · $74.78

Own -9%
WDC Exercise·M
Aug 21, 25

Chief Legal Officer & Corp Sec · 10b5-1

$0

19 sh

Own +11%
WDC Exercise·M
Aug 21, 25

Chief Legal Officer & Corp Sec · 10b5-1

$0

18 sh

Own +0%
WDC Other·F
Aug 21, 25

Chief Legal Officer & Corp Sec · 10b5-1

$330.6K

4.4K sh · $74.66

Own -3%
WDC Exercise·M
Aug 20, 25

CLO and Corp. Sec.

$0

11 sh

Own +6%
WDC Exercise·M
Aug 20, 25

CLO and Corp. Sec.

$0

10 sh

Own +0%
WDC Other·F
Aug 20, 25

CLO and Corp. Sec.

$194.0K

2.6K sh · $75.64

Own -2%
WDC Exercise·M
Jul 20, 25

CLO and Corp. Sec.

$0

6 sh

Own +3%
WDC Other·F
Jul 20, 25

CLO and Corp. Sec.

$88.8K

1.3K sh · $68.00

Own -1%
WDC Exercise·M
Jul 20, 25

CLO and Corp. Sec.

$0

5 sh

Own +0%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Jun 17, 2026	WDC	Chief Legal Officer & Corp Sec	Grant A	19	+6%	—	$0
Jun 5, 2026	WDC	Chief Legal Officer & Corp Sec	Sell S	432	-0%	$545.60	$235.7K
Jun 3, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	7	+2%	—	$0
Jun 3, 2026	WDC	Chief Legal Officer & Corp Sec	Other F	699	-1%	$594.11	$415.3K
Jun 3, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	6	+0%	—	$0
May 27, 2026	WDC	Chief Legal Officer & Corp Sec	Sell S	522 · 2 lots	-0%	$509.53 avg	$266.0K
May 25, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	7	+2%	—	$0
May 25, 2026	WDC	Chief Legal Officer & Corp Sec	Other F	771	-1%	$484.28	$373.4K
May 25, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	7	+0%	—	$0
May 21, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	14 · 2 lots	+5%	—	$0
May 21, 2026	WDC	Chief Legal Officer & Corp Sec	Sell S	106	-0%	$458.87	$48.6K
May 21, 2026	WDC	Chief Legal Officer & Corp Sec	Other F	1.5K · 2 lots	-1%	$479.62 avg	$713.2K
May 21, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	13 · 2 lots	+0%	—	$0
Apr 21, 2026	WDC	Chief Legal Officer & Corp Sec	Sell S	363	-0%	$377.09	$136.9K
Apr 20, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	12	+4%	—	$0
Apr 20, 2026	WDC	Chief Legal Officer & Corp Sec	Other F	1.3K	-1%	$374.11	$489.3K
Apr 20, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	12	+0%	—	$0
Mar 18, 2026	WDC	Chief Legal Officer & Corp Sec	Grant A	41	+13%	—	$0
Mar 4, 2026	WDC	Chief Legal Officer & Corp Sec	Sell S	9.3K · 2 lots	-7%	$268.28 avg	$2.5M
Mar 3, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	24	+8%	—	$0
Mar 3, 2026	WDC	Chief Legal Officer & Corp Sec	Other F	2.8K	-2%	$250.61	$701.2K
Mar 3, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	23	+0%	—	$0
Feb 26, 2026	WDC	Chief Legal Officer & Corp Sec	Sell S	214	-0%	$286.11	$61.2K
Feb 25, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	7	+2%	—	$0
Feb 25, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	6	+0%	—	$0
Feb 25, 2026	WDC	Chief Legal Officer & Corp Sec	Other F	770	-1%	$290.95	$224.0K
Feb 24, 2026	WDC	Chief Legal Officer & Corp Sec	Sell S	438 · 2 lots	-0%	$282.33 avg	$123.7K
Feb 21, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	13 · 2 lots	+4%	—	$0
Feb 21, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	12 · 2 lots	+0%	—	$0
Feb 21, 2026	WDC	Chief Legal Officer & Corp Sec	Other F	1.4K · 2 lots	-1%	$285.52 avg	$386.3K
Feb 6, 2026	WDC	Chief Legal Officer & Corp Sec	Sell S	6.8K	-5%	$270.49	$1.8M
Jan 21, 2026	WDC	Chief Legal Officer & Corp Sec	Sell S	447	-0%	$229.00	$102.4K
Jan 20, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	11	+3%	—	$0
Jan 20, 2026	WDC	Chief Legal Officer & Corp Sec	Exercise M	11	+0%	—	$0
Jan 20, 2026	WDC	Chief Legal Officer & Corp Sec	Other F	842	-1%	$222.97	$187.7K
Dec 18, 2025	WDC	Chief Legal Officer & Corp Sec	Grant A	82	+30%	—	$0
Dec 2, 2025	WDC	Chief Legal Officer & Corp Sec	Sell S	2.8K	-2%	$160.57	$449.8K
Nov 25, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	5	+2%	—	$0
Nov 25, 2025	WDC	Chief Legal Officer & Corp Sec	Other F	770	-1%	$155.41	$119.7K
Nov 25, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	5	+0%	—	$0
Nov 21, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	10 · 2 lots	+4%	—	$0
Nov 21, 2025	WDC	Chief Legal Officer & Corp Sec	Other F	1.5K · 2 lots	-1%	$139.46 avg	$207.4K
Nov 21, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	9 · 2 lots	+0%	—	$0
Oct 20, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	9	+3%	—	$0
Oct 20, 2025	WDC	Chief Legal Officer & Corp Sec	Other F	1.3K	-1%	$121.53	$158.8K
Oct 20, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	8	+0%	—	$0
Sep 18, 2025	WDC	Chief Legal Officer & Corp Sec	Grant A	118	+65%	—	$0
Aug 27, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	1	+1%	—	$0
Aug 27, 2025	WDC	Chief Legal Officer & Corp Sec	Other F	266	-0%	$80.67	$21.5K
Aug 27, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	1	+0%	—	$0
Aug 26, 2025	WDC	Chief Legal Officer & Corp Sec	Grant A	16.6K	+12%	—	$0
Aug 25, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	3	+2%	—	$0
Aug 25, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	3	+0%	—	$0
Aug 25, 2025	WDC	Chief Legal Officer & Corp Sec	Other F	769	-1%	$79.22	$60.9K
Aug 22, 2025	WDC	Chief Legal Officer & Corp Sec	Sell S	14.1K	-9%	$74.78	$1.1M
Aug 21, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	19	+11%	—	$0
Aug 21, 2025	WDC	Chief Legal Officer & Corp Sec	Exercise M	18	+0%	—	$0
Aug 21, 2025	WDC	Chief Legal Officer & Corp Sec	Other F	4.4K	-3%	$74.66	$330.6K
Aug 20, 2025	WDC	CLO and Corp. Sec.	Exercise M	11	+6%	—	$0
Aug 20, 2025	WDC	CLO and Corp. Sec.	Exercise M	10	+0%	—	$0
Aug 20, 2025	WDC	CLO and Corp. Sec.	Other F	2.6K	-2%	$75.64	$194.0K
Jul 20, 2025	WDC	CLO and Corp. Sec.	Exercise M	6	+3%	—	$0
Jul 20, 2025	WDC	CLO and Corp. Sec.	Other F	1.3K	-1%	$68.00	$88.8K
Jul 20, 2025	WDC	CLO and Corp. Sec.	Exercise M	5	+0%	—	$0

Buy Sell Non-market (grant · exercise · gift)

About Tregillis Cynthia L

This profile aggregates every SEC Form 4 insider transaction reported by Tregillis Cynthia L across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.