Thomas A. Szlosek - 25 Oct 2025 Form 4/A - Amendment Insider Report for Seagate Technology Holdings plc (STX)

Reporting relationship: Director
Issuer ticker: STX
Reported as of: 25 Oct 2025
Net transaction value: -$26,456
SEC form: 4/A - Amendment
Accepted by SEC: 12 Nov 2025, 16:38:55 UTC
Original report date: 28 Oct 2025
Prior SEC filing: 26 Aug 2025
Next SEC filing: 12 Nov 2025
Source filing: View source filing
Reporting owner signature: /s/ Louis J. Thorson, Attorney-in-fact for Thomas Szlosek

Key filing fact

Thomas A. Szlosek filed Form 4/A - Amendment for Seagate Technology Holdings plc (STX) on 12 Nov 2025.

Key facts

This page summarizes Thomas A. Szlosek's Form 4/A - Amendment filing for Seagate Technology Holdings plc (STX).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 12 Nov 2025, 16:38.

Change

Previous filing in this sequence was filed on 26 Aug 2025.
Current net transaction value: -$26,456.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0001293167 Primary reporting owner

Szlosek Thomas A

Relationship: Director
Address: 47488 KATO RD, FREMONT
Signature: /s/ Louis J. Thorson, Attorney-in-fact for Thomas Szlosek
Signature date: 12 Nov 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

STX transaction

Ordinary Shares

Options Exercise

Transaction value: $0
Shares: +470
Change %
Price: $0.000000
Shares after: 470
Date: 25 Oct 2025
Ownership: Direct
Footnotes: F1

STX transaction

Ordinary Shares

Tax liability

Transaction value: $26,456
Shares: -113
Change %: -24%
Price: $234.12
Shares after: 357
Date: 25 Oct 2025
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

STX transaction Derivative

Restricted Share Unit

Options Exercise

Transaction value: $0
Shares: -470
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 25 Oct 2025
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 470
Exercise price: $0.000000
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

This amendment is being filed due to an administrative oversight.

Footnote F2

Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on August 23, 2025 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan for no consideration. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer. Subject to the Reporting Person's continuous service with the Issuer, shares were released to the Reporting Person on the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on June 27, 2025.