As of November 6, 2026, Seagate Technology Holdings plc is a publicly traded company (Nasdaq: STX); its largest reported holder is Vanguard, with 7.48% on Schedule 13G of April 30, 2026, then Fidelity (FMR) (5.1%). The largest insider holding is William D. Mosley, the chief executive and a director, with 346,108.25 shares (0.15% of shares outstanding), per Form 4 of November 3, 2026 (Schedule 13G, April 30, 2026).
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Is Seagate Technology Holdings plc a real, registered company?
- Seagate Technology Holdings plc files with the SEC under CIK 1137789 (its SEC filings).
- Its shares are listed under the ticker STX on Nasdaq (SEC company record).
- business address in Singapore, U0, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under SEAGATE TECHNOLOGY HOLDINGS PLC in our court records and SEC 8-K records (as of 2026-11-06).
- Leadership changes: the latest reported is Shankar Arumugavelu (Form 8-K filed 2026-09-04). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Fidelity (FMR) (filed 2026-11-05).
Who are Seagate Technology Holdings plc's owners and officers?
Seagate Technology Holdings plc: business address in Singapore, U0; industry Computer Storage Devices (Schedule 13G, 2026-11-05).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-11-05 | Fmr LLC | 5.1% |
| Schedule 13G/A, 2026-08-05 | Sanders Capital, LLC | 1.56% |
| Schedule 13G/A, 2026-07-31 | Vanguard Portfolio Management | 3.56% |
| Schedule 13G, 2026-04-30 | Vanguard Capital Management | 7.48% |
| Schedule 13G, 2026-04-29 | Vanguard Portfolio Management | 5.08% |
| Schedule 13G/A, 2026-04-16 | Sanders Capital, LLC | 5.98% |
| Schedule 13G/A, 2026-03-27 | The Vanguard Group | 0% |
| Schedule 13G/A, 2025-11-04 | Jpmorgan Chase & Co. | 4% |
| Schedule 13G/A, 2025-10-31 | Jpmorgan Chase & Co. | 5.6% |
| Schedule 13G/A, 2025-08-13 | Capital Research Global Investors | 3.4% |
| Schedule 13G/A, 2025-07-22 | Jpmorgan Chase & Co. | 8.4% |
Questions about who owns Seagate Technology Holdings plc
Who owns Seagate Technology Holdings plc?
On this page, 2 holders' latest ownership filings report 5% or more of Seagate Technology Holdings plc: Vanguard Capital Management (7.48%, Schedule 13G, filed 2026-04-30) and Fmr LLC (5.1%, Schedule 13G, filed 2026-11-05).
Who are the largest shareholders of Seagate Technology Holdings plc?
By the share each holder's latest filing reports, the largest holders of Seagate Technology Holdings plc on this page are Vanguard Capital Management (7.48%) and Fmr LLC (5.1%).
When did Vanguard Capital Management buy into Seagate Technology Holdings plc?
The filings give report dates, not purchase dates. The earliest filing from Vanguard Capital Management on this page is the Schedule 13G, filed 2026-04-30, reporting 7.48%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 11 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Sources
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-09-04 | Shankar Arumugavelu | departed | ||
| Form 8-K, 2026-05-06 | Michael R. Cannon | departed |
Which insiders own Seagate Technology Holdings plc shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and a director: 346,108.25 shares (0.15% of shares outstanding) (Form 4, 2026-11-03).
- , the chief financial officer and executive vice president: 70,756.5 shares (0.03% of shares outstanding) (Form 4, 2026-09-16).
- , a director: 34,771 shares (0.02% of shares outstanding), 30,904 held directly and 3,867 indirectly (Form 4, 2026-10-26).
- , the executive vice president global operations: 25,093 shares (0.01% of shares outstanding) (Form 4, 2026-09-16).
- , a director: 21,743 shares (0.01% of shares outstanding), 14,858 held directly and 6,885 indirectly (Form 4, 2026-10-26).
Shares outstanding: 229,561,109 as of 2026-10-26, from the company's latest SEC cover page.
How much has Seagate Technology Holdings plc raised?
No fundraising or offering filing from Seagate Technology Holdings plc is on file with us.
Keep reading
More on Seagate Technology Holdings plc and the records around it.
Seagate Technology Holdings plc elsewhere on the record
- 5%+ stake filings Nov 2026
- Leadership changes Sep 2026
Companies that share a holder
- Capital Research Global Investors also filed stake reports on 99 other companies: Royal Caribbean Cruises Ltd. (Oct 2026), Patria Investments Ltd. (Sep 2026), Arxis, Inc. (Aug 2026)
- JPMORGAN CHASE & CO. also filed stake reports on 116 other companies: LEVI STRAUSS & CO (Nov 2026), Warner Music Group Corp. (Nov 2026), Andersen Group Inc. (Oct 2026)
- FMR LLC also filed stake reports on 761 other companies: ASPEN NEUROSCIENCE INC (Nov 2026), AVALO THERAPEUTICS INC (Nov 2026), BRAZE INC (Nov 2026)
Related pages
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