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Mosley William D's Form 4 filing

Seagate Technology Holdings plcSTX · filed Nov 3, 2026

Accession no.
0001137789-26-000318
Filed
Nov 3, 2026, 4:59 PM ET
Trade date
Nov 2, 2026
Filing delay
1 day
Rule 10b5-1 plan
Checked

This filing lists 14 non-derivative transactions. Open-market sales total $4.19M. 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
Nov 2, 2026Ordinary SharesSSaleDisposed−960$617.67F2−$592,961.38351,868.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−760$618.80F3−$470,285.95351,108.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−1,160$619.60F4−$718,731.59349,948.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−720$620.80F5−$446,978.02349,228.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−1,080$621.89F6−$671,646.38348,148.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−240$623.01F7−$149,521.99347,908.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−640$623.91F8−$399,302.02347,268.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−320$625.68F9−$200,217.22346,948.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−80$632.55−$50,604346,868.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−240$633.64F10−$152,072.81346,628.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−160$636.08F11−$101,772.8346,468.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−120$640.46−$76,855.2346,348.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−160$642.78−$102,844.8346,188.25Direct
Nov 2, 2026Ordinary SharesSSaleDisposed−80$644.43−$51,554.4346,108.25Direct

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 $617.17 to $618.16. 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.

F3

These Ordinary Shares were sold in multiple trades at prices ranging from $618.18 to $619.17. 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 $619.19 to $620.16. 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.

F5

These Ordinary Shares were sold in multiple trades at prices ranging from $620.32 to $621.11. 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.

F6

These Ordinary Shares were sold in multiple trades at prices ranging from $621.36 to $622.28. 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 $622.41 to $623.40. 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.

F8

These Ordinary Shares were sold in multiple trades at prices ranging from $623.41 to $624.22. 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 $625.03 to $625.97. 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.

F10

These Ordinary Shares were sold in multiple trades at prices ranging from $633.55 to $633.79. 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 $635.59 to $636.55. 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)