William D. Mosley

CIK: 0001388390

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)443 (82.2%)

Position reduction

Option Exercises (M)50 (9.3%)

Derivative conversions

Awards (A)20 (3.7%)

Compensation grants

Other (G, F, J, C, D, …)26 (4.8%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

STX

Seagate Technology Holdings plc

DirectorOfficer

CRUS

CIRRUS LOGIC, INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (539 total)

STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
720 shares at avg. $620.80$447K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
320 shares at avg. $625.68$200K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
80 shares at avg. $632.55$51K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
640 shares at avg. $623.91$399K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
1.2K shares at avg. $619.60$719K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
240 shares at avg. $633.64$152K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
80 shares at avg. $644.43$52K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
960 shares at avg. $617.67$593K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
1.1K shares at avg. $621.89$672K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
240 shares at avg. $623.01$150K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
160 shares at avg. $642.78$103K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
760 shares at avg. $618.80$470K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
120 shares at avg. $640.46$77K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
160 shares at avg. $636.08$102K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
678 shares at avg. $595.68$404K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
1.6K shares at avg. $593.47$973K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
1.5K shares at avg. $594.55$880K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
240 shares at avg. $596.73$143K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
800 shares at avg. $590.40$472K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
600 shares at avg. $589.27$354K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
280 shares at avg. $591.23$166K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Exercise(M)
Direct
14K shares at avg. $46.23$647K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
720 shares at avg. $587.99$423K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
1.4K shares at avg. $592.71$830K
STX
Seagate Technology Holdings plc
Nov 2, 2026
Sale(S)
Direct
481 shares at avg. $597.91$288K

		Type	Shares	Price		Ownership
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	720	$620.80	$446,978	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	320	$625.68	$200,217	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	80	$632.55	$50,604	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	640	$623.91	$399,302	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	1,160	$619.60	$718,732	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	240	$633.64	$152,073	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	80	$644.43	$51,554	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	960	$617.67	$592,961	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	1,080	$621.89	$671,646	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	240	$623.01	$149,522	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	160	$642.78	$102,845	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	760	$618.80	$470,286	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	120	$640.46	$76,855	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	160	$636.08	$101,773	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	678	$595.68	$403,870	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	1,639	$593.47	$972,692	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	1,480	$594.55	$879,929	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	240	$596.73	$143,216	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	800	$590.40	$472,318	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	600	$589.27	$353,561	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	280	$591.23	$165,545	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Exercise(M)	14,000	$46.23	$647,220	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	720	$587.99	$423,354	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	1,400	$592.71	$829,794	Direct
Nov 2, 2026	STX Seagate Technology Holdings plc	Sale(S)	481	$597.91	$287,592	Direct

1-25 of 539 transactions

…

About MOSLEY WILLIAM D

MOSLEY WILLIAM D (SEC CIK 0001388390) files insider reports with the SEC as CEO of Seagate Technology Holdings plc (STX) and Director of CIRRUS LOGIC, INC. (CRUS).

Signal8 holds 62 ownership filings by MOSLEY WILLIAM D, all Form 4s, filed between Sep 5, 2024 and Nov 3, 2026. Those filings report 539 transactions, from Jul 20, 2024 to Nov 2, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on MOSLEY WILLIAM D's filings is in FREMONT, CA.

Recent filings by MOSLEY WILLIAM D

Nov 2, 2026: Open-market sales of STX shares (21 lines, Form 4, code S).
Nov 2, 2026: Option exercise of STX shares (Form 4, code M).
Nov 2, 2026: Open-market sales of STX shares (3 lines, Form 4, code S).

Other insiders filing for Seagate Technology Holdings plc (STX)

How to read Form 4 transaction codes