Michael R. Cannon - 24 Oct 2026 Form 4 Insider Report for Seagate Technology Holdings plc (STX)

Reporting relationship: Director
Issuer ticker: STX
Reported as of: 24 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 26 Oct 2026, 18:46:28 UTC
Prior SEC filing: 10 Nov 2025
Source filing: View source filing
Reporting owner signature: /s/ Louis A. Thorson, Attorney-in-fact for Michael R. Cannon

Filing notes and source

Key filing fact

Michael R. Cannon filed Form 4 for Seagate Technology Holdings plc (STX) on 26 Oct 2026.

Key facts

This page summarizes Michael R. Cannon's Form 4 filing for Seagate Technology Holdings plc (STX).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 26 Oct 2026, 18:46.

Change

Previous filing in this sequence was filed on 10 Nov 2025.
Current net transaction value: $0.

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 disclosures.

View source filing

Reporting Owners (1)

CIK 0001201489 Primary reporting owner

CANNON MICHAEL R

Relationship: Director
Address: SEAGATE TECHNOLOGY HOLDINGS PLC, 47488 KATO ROAD, FREMONT
Signature: /s/ Louis A. Thorson, Attorney-in-fact for Michael R. Cannon
Signature date: 26 Oct 2026

Reported non-derivative transactions

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

STX transaction

Ordinary Shares

Options Exercise

Transaction value
Shares: +1,868
Change %: +14%
Price: $0.000000^*
Shares after: 15,307
Date: 24 Oct 2026
Ownership: Direct

STX transaction

Ordinary Shares

Tax liability

Transaction value
Shares: -449
Change %: -2.9%
Price: $630.49^*
Shares after: 14,858
Date: 24 Oct 2026
Ownership: Direct

STX holding

Ordinary Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 6,885
Date: 24 Oct 2026
Ownership: Michael R. Cannon Trust

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
Shares: -1,868
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 24 Oct 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 1,868
Exercise price: $0.000000
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Michael R. Cannon is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 1 footnote

Footnote F1

Consists of a grant of restricted share units (RSUs) awarded to the Reporting Person on October 25, 2025 under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "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 will be released to the Reporting Person on the earlier of (i) one year from the date of grant and (ii) the date of the next annual general meeting of shareholders of the Issuer following the end of the fiscal year ending on July 3, 2026, provided such annual general meeting is at least fifty (50) weeks after the immediately preceding fiscal year's annual general meeting.