William D Mosley

Insider

CEO

Trades at: STX

30D 90D 1Y

Net shares · 90d

-84.6K

0 buy · 84.6K sell

Net value · 90d

-$62.2M

$0 in · $62.2M out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 84.6K sell

Net buy / sell volume (all companies)

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions · open-market

Include grants & non-market

STX Sell·S
Jun 12, 26

CEO

$1.6M

1.8K sh · $880.19

Own -1%
STX Sell·S
Jun 10, 26

CEO

$1.1M

1.3K sh · $821.75

Own -0%
STX Sell·S
Jun 10, 26

CEO

$1.3M

1.5K sh · $821.74

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$75.2K

80 sh · $940.00

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$256.3K

273 sh · $938.82

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$332.8K

355 sh · $937.39

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$299.3K

320 sh · $935.44

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$411.0K

440 sh · $934.17

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$387.3K

415 sh · $933.25

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$186.3K

200 sh · $931.65

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$223.2K

240 sh · $930.12

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$1.4M

1.5K sh · $929.38

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$297.0K

320 sh · $928.21

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$296.6K

320 sh · $926.83

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$806.4K

871 sh · $925.87

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$333.0K

360 sh · $924.88

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$443.3K

480 sh · $923.58

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$1.5M

1.6K sh · $922.95

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$1.7M

1.8K sh · $921.75

Own -1%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$1.6M

1.7K sh · $920.90

Own -1%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$1.6M

1.7K sh · $919.62

Own -1%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$441.0K

480 sh · $918.75

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$293.4K

320 sh · $916.78

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$183.1K

200 sh · $915.52

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$256.1K

280 sh · $914.61

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$291.9K

320 sh · $912.22

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$437.3K

480 sh · $911.03

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$546.1K

600 sh · $910.15

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$775.5K

853 sh · $909.18

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$689.9K

760 sh · $907.75

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$1.2M

1.3K sh · $906.79

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$670.3K

740 sh · $905.76

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$795.2K

879 sh · $904.70

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$704.0K

779 sh · $903.78

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$757.3K

839 sh · $902.62

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$775.3K

860 sh · $901.56

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$288.2K

320 sh · $900.54

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$143.9K

160 sh · $899.27

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$730.4K

813 sh · $898.41

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$251.3K

280 sh · $897.43

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$286.9K

320 sh · $896.43

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$430.7K

481 sh · $895.45

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$429.2K

480 sh · $894.20

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$185.7K

208 sh · $893.00

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$678.0K

760 sh · $892.06

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$1.0M

1.2K sh · $890.98

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$569.6K

640 sh · $889.94

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$144.9K

163 sh · $888.89

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$213.1K

240 sh · $887.72

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$319.2K

360 sh · $886.72

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$318.8K

360 sh · $885.67

Own -0%
STX Sell·S
Jun 1, 26

CEO · 10b5-1

$530.8K

600 sh · $884.62

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$91.6K

120 sh · $763.18

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$60.8K

80 sh · $760.49

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$60.7K

80 sh · $758.65

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$242.6K

320 sh · $758.05

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$1.1M

1.5K sh · $756.83

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$1.3M

1.7K sh · $755.72

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$1.6M

2.2K sh · $754.70

Own -1%
STX Sell·S
May 20, 26

CEO · 10b5-1

$2.0M

2.7K sh · $753.69

Own -1%
STX Sell·S
May 20, 26

CEO · 10b5-1

$2.4M

3.2K sh · $752.72

Own -1%
STX Sell·S
May 20, 26

CEO · 10b5-1

$3.2M

4.2K sh · $751.75

Own -1%
STX Sell·S
May 20, 26

CEO · 10b5-1

$3.6M

4.8K sh · $750.84

Own -1%
STX Sell·S
May 20, 26

CEO · 10b5-1

$1.2M

1.6K sh · $749.67

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$1.3M

1.7K sh · $748.53

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$1.2M

1.6K sh · $747.64

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$1.1M

1.5K sh · $746.53

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$942.4K

1.3K sh · $745.55

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$625.4K

840 sh · $744.52

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$416.2K

560 sh · $743.14

Own -0%
STX Sell·S
May 20, 26

CEO · 10b5-1

$89.0K

120 sh · $742.01

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$128.4K

300 sh · $427.97

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$341.5K

800 sh · $426.93

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$425.9K

1.0K sh · $425.94

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$637.4K

1.5K sh · $424.92

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$622.8K

1.5K sh · $423.98

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$1.0M

2.4K sh · $422.93

Own -1%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$1.2M

2.9K sh · $421.84

Own -1%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$1.2M

2.9K sh · $420.77

Own -1%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$629.9K

1.5K sh · $419.94

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$457.3K

1.1K sh · $418.79

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$337.3K

808 sh · $417.45

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$458.2K

1.1K sh · $416.56

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$332.2K

800 sh · $415.23

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$124.2K

300 sh · $413.97

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$123.7K

300 sh · $412.28

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$41.1K

100 sh · $410.83

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$81.8K

200 sh · $409.18

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$40.7K

100 sh · $407.48

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$40.4K

100 sh · $404.06

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$80.1K

200 sh · $400.34

Own -0%
STX Sell·S
Apr 1, 26

CEO · 10b5-1

$39.9K

100 sh · $399.05

Own -0%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Jun 12, 2026	STX	CEO	Sell S	1.8K	-1%	$880.19	$1.6M
Jun 10, 2026	STX	CEO	Sell S	1.3K	-0%	$821.75	$1.1M
Jun 10, 2026	STX	CEO	Sell S	1.5K	-0%	$821.74	$1.3M
Jun 1, 2026	STX	CEO	Sell S	80	-0%	$940.00	$75.2K
Jun 1, 2026	STX	CEO	Sell S	273	-0%	$938.82	$256.3K
Jun 1, 2026	STX	CEO	Sell S	355	-0%	$937.39	$332.8K
Jun 1, 2026	STX	CEO	Sell S	320	-0%	$935.44	$299.3K
Jun 1, 2026	STX	CEO	Sell S	440	-0%	$934.17	$411.0K
Jun 1, 2026	STX	CEO	Sell S	415	-0%	$933.25	$387.3K
Jun 1, 2026	STX	CEO	Sell S	200	-0%	$931.65	$186.3K
Jun 1, 2026	STX	CEO	Sell S	240	-0%	$930.12	$223.2K
Jun 1, 2026	STX	CEO	Sell S	1.5K	-0%	$929.38	$1.4M
Jun 1, 2026	STX	CEO	Sell S	320	-0%	$928.21	$297.0K
Jun 1, 2026	STX	CEO	Sell S	320	-0%	$926.83	$296.6K
Jun 1, 2026	STX	CEO	Sell S	871	-0%	$925.87	$806.4K
Jun 1, 2026	STX	CEO	Sell S	360	-0%	$924.88	$333.0K
Jun 1, 2026	STX	CEO	Sell S	480	-0%	$923.58	$443.3K
Jun 1, 2026	STX	CEO	Sell S	1.6K	-0%	$922.95	$1.5M
Jun 1, 2026	STX	CEO	Sell S	1.8K	-1%	$921.75	$1.7M
Jun 1, 2026	STX	CEO	Sell S	1.7K	-1%	$920.90	$1.6M
Jun 1, 2026	STX	CEO	Sell S	1.7K	-1%	$919.62	$1.6M
Jun 1, 2026	STX	CEO	Sell S	480	-0%	$918.75	$441.0K
Jun 1, 2026	STX	CEO	Sell S	320	-0%	$916.78	$293.4K
Jun 1, 2026	STX	CEO	Sell S	200	-0%	$915.52	$183.1K
Jun 1, 2026	STX	CEO	Sell S	280	-0%	$914.61	$256.1K
Jun 1, 2026	STX	CEO	Sell S	320	-0%	$912.22	$291.9K
Jun 1, 2026	STX	CEO	Sell S	480	-0%	$911.03	$437.3K
Jun 1, 2026	STX	CEO	Sell S	600	-0%	$910.15	$546.1K
Jun 1, 2026	STX	CEO	Sell S	853	-0%	$909.18	$775.5K
Jun 1, 2026	STX	CEO	Sell S	760	-0%	$907.75	$689.9K
Jun 1, 2026	STX	CEO	Sell S	1.3K	-0%	$906.79	$1.2M
Jun 1, 2026	STX	CEO	Sell S	740	-0%	$905.76	$670.3K
Jun 1, 2026	STX	CEO	Sell S	879	-0%	$904.70	$795.2K
Jun 1, 2026	STX	CEO	Sell S	779	-0%	$903.78	$704.0K
Jun 1, 2026	STX	CEO	Sell S	839	-0%	$902.62	$757.3K
Jun 1, 2026	STX	CEO	Sell S	860	-0%	$901.56	$775.3K
Jun 1, 2026	STX	CEO	Sell S	320	-0%	$900.54	$288.2K
Jun 1, 2026	STX	CEO	Sell S	160	-0%	$899.27	$143.9K
Jun 1, 2026	STX	CEO	Sell S	813	-0%	$898.41	$730.4K
Jun 1, 2026	STX	CEO	Sell S	280	-0%	$897.43	$251.3K
Jun 1, 2026	STX	CEO	Sell S	320	-0%	$896.43	$286.9K
Jun 1, 2026	STX	CEO	Sell S	481	-0%	$895.45	$430.7K
Jun 1, 2026	STX	CEO	Sell S	480	-0%	$894.20	$429.2K
Jun 1, 2026	STX	CEO	Sell S	208	-0%	$893.00	$185.7K
Jun 1, 2026	STX	CEO	Sell S	760	-0%	$892.06	$678.0K
Jun 1, 2026	STX	CEO	Sell S	1.2K	-0%	$890.98	$1.0M
Jun 1, 2026	STX	CEO	Sell S	640	-0%	$889.94	$569.6K
Jun 1, 2026	STX	CEO	Sell S	163	-0%	$888.89	$144.9K
Jun 1, 2026	STX	CEO	Sell S	240	-0%	$887.72	$213.1K
Jun 1, 2026	STX	CEO	Sell S	360	-0%	$886.72	$319.2K
Jun 1, 2026	STX	CEO	Sell S	360	-0%	$885.67	$318.8K
Jun 1, 2026	STX	CEO	Sell S	600	-0%	$884.62	$530.8K
May 20, 2026	STX	CEO	Sell S	120	-0%	$763.18	$91.6K
May 20, 2026	STX	CEO	Sell S	80	-0%	$760.49	$60.8K
May 20, 2026	STX	CEO	Sell S	80	-0%	$758.65	$60.7K
May 20, 2026	STX	CEO	Sell S	320	-0%	$758.05	$242.6K
May 20, 2026	STX	CEO	Sell S	1.5K	-0%	$756.83	$1.1M
May 20, 2026	STX	CEO	Sell S	1.7K	-0%	$755.72	$1.3M
May 20, 2026	STX	CEO	Sell S	2.2K	-1%	$754.70	$1.6M
May 20, 2026	STX	CEO	Sell S	2.7K	-1%	$753.69	$2.0M
May 20, 2026	STX	CEO	Sell S	3.2K	-1%	$752.72	$2.4M
May 20, 2026	STX	CEO	Sell S	4.2K	-1%	$751.75	$3.2M
May 20, 2026	STX	CEO	Sell S	4.8K	-1%	$750.84	$3.6M
May 20, 2026	STX	CEO	Sell S	1.6K	-0%	$749.67	$1.2M
May 20, 2026	STX	CEO	Sell S	1.7K	-0%	$748.53	$1.3M
May 20, 2026	STX	CEO	Sell S	1.6K	-0%	$747.64	$1.2M
May 20, 2026	STX	CEO	Sell S	1.5K	-0%	$746.53	$1.1M
May 20, 2026	STX	CEO	Sell S	1.3K	-0%	$745.55	$942.4K
May 20, 2026	STX	CEO	Sell S	840	-0%	$744.52	$625.4K
May 20, 2026	STX	CEO	Sell S	560	-0%	$743.14	$416.2K
May 20, 2026	STX	CEO	Sell S	120	-0%	$742.01	$89.0K
Apr 1, 2026	STX	CEO	Sell S	300	-0%	$427.97	$128.4K
Apr 1, 2026	STX	CEO	Sell S	800	-0%	$426.93	$341.5K
Apr 1, 2026	STX	CEO	Sell S	1.0K	-0%	$425.94	$425.9K
Apr 1, 2026	STX	CEO	Sell S	1.5K	-0%	$424.92	$637.4K
Apr 1, 2026	STX	CEO	Sell S	1.5K	-0%	$423.98	$622.8K
Apr 1, 2026	STX	CEO	Sell S	2.4K	-1%	$422.93	$1.0M
Apr 1, 2026	STX	CEO	Sell S	2.9K	-1%	$421.84	$1.2M
Apr 1, 2026	STX	CEO	Sell S	2.9K	-1%	$420.77	$1.2M
Apr 1, 2026	STX	CEO	Sell S	1.5K	-0%	$419.94	$629.9K
Apr 1, 2026	STX	CEO	Sell S	1.1K	-0%	$418.79	$457.3K
Apr 1, 2026	STX	CEO	Sell S	808	-0%	$417.45	$337.3K
Apr 1, 2026	STX	CEO	Sell S	1.1K	-0%	$416.56	$458.2K
Apr 1, 2026	STX	CEO	Sell S	800	-0%	$415.23	$332.2K
Apr 1, 2026	STX	CEO	Sell S	300	-0%	$413.97	$124.2K
Apr 1, 2026	STX	CEO	Sell S	300	-0%	$412.28	$123.7K
Apr 1, 2026	STX	CEO	Sell S	100	-0%	$410.83	$41.1K
Apr 1, 2026	STX	CEO	Sell S	200	-0%	$409.18	$81.8K
Apr 1, 2026	STX	CEO	Sell S	100	-0%	$407.48	$40.7K
Apr 1, 2026	STX	CEO	Sell S	100	-0%	$404.06	$40.4K
Apr 1, 2026	STX	CEO	Sell S	200	-0%	$400.34	$80.1K
Apr 1, 2026	STX	CEO	Sell S	100	-0%	$399.05	$39.9K

About William D Mosley

This profile aggregates every SEC Form 4 insider transaction reported by William D Mosley 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.