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Mosley William D's Form 4 filing

Seagate Technology Holdings plcSTX · filed Aug 4, 2026

Accession no.
0001137789-26-000164
Filed
Aug 4, 2026, 6:09 PM ET
Trade date
Aug 3, 2026
Filing delay
1 day
Rule 10b5-1 plan
Checked

This filing lists 19 non-derivative transactions. Open-market sales total $14.1M. It was filed 1 day after the trade.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
Mosley William DCIK 0001388390Director, Officer (CEO)

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
Aug 3, 2026Ordinary SharesSSaleDisposed−400$819.41F2−$327,764.8312,197Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−520$820.35F3−$426,579.61311,677Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−575$821.46F4−$472,339.16311,102Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−840$822.56F5−$690,947.21310,262Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−1,120$823.46F6−$922,271.95309,142Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−1,600$824.57F7−$1,319,313.76307,542Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−1,280$825.64F8−$1,056,813.57306,262Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−1,985$826.76F9−$1,641,120.39304,277Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−1,799$827.67F10−$1,488,978.51302,478Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−1,641$828.60F11−$1,359,725.22300,837Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−1,619$829.78F12−$1,343,421.43299,218Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−1,960$830.83F13−$1,628,435.62297,258Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−320$832.02F14−$266,247.62296,938Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−400$832.73F15−$333,090.32296,538Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−200$833.91F16−$166,781.74296,338Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−181$835.06F17−$151,145.81296,157Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−400$835.99F18−$334,395.6295,757Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−160$836.77F19−$133,882.8295,597Direct
Aug 3, 2026Ordinary SharesSSaleDisposed−80$837.98F20−$67,038.4295,517Direct

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

F2

These Ordinary Shares were sold in multiple trades at prices ranging from $818.84 to $819.71. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F3

These Ordinary Shares were sold in multiple trades at prices ranging from $819.89 to $820.88. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F4

These Ordinary Shares were sold in multiple trades at prices ranging from $820.99 to $821.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F5

These Ordinary Shares were sold in multiple trades at prices ranging from $822.01 to $822.97. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F6

These Ordinary Shares were sold in multiple trades at prices ranging from $823.085 to $824.07. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F7

These Ordinary Shares were sold in multiple trades at prices ranging from $824.15 to $825.11. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F8

These Ordinary Shares were sold in multiple trades at prices ranging from $825.16 to $826.15. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F9

These Ordinary Shares were sold in multiple trades at prices ranging from $826.19 to $827.18. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F10

These Ordinary Shares were sold in multiple trades at prices ranging from $827.20 to $828.19. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F11

These Ordinary Shares were sold in multiple trades at prices ranging from $828.22 to $829.16. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F12

These Ordinary Shares were sold in multiple trades at prices ranging from $829.33 to $830.31. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F13

These Ordinary Shares were sold in multiple trades at prices ranging from $830.33 to $831.27. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F14

These Ordinary Shares were sold in multiple trades at prices ranging from $831.43 to $832.31. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F15

These Ordinary Shares were sold in multiple trades at prices ranging from $832.43 to $833.40. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F16

These Ordinary Shares were sold in multiple trades at prices ranging from $833.43 to $834.36. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F17

These Ordinary Shares were sold in multiple trades at prices ranging from $834.46 to $835.37. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F18

These Ordinary Shares were sold in multiple trades at prices ranging from $835.55 to $836.52. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F19

These Ordinary Shares were sold in multiple trades at prices ranging from $836.58 to $837.21. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

F20

These Ordinary Shares were sold in multiple trades at prices ranging from $837.97 to $837.99. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Referenced by the price of 1 transaction in Table I.

Read the full filing on SEC EDGAR (opens in a new tab)