As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Seagate Technology Holdings Plc. The largest reported stake is Vanguard Capital Management's, at 7.48%. 11 filings are on record since July 22, 2025 (Schedule 13G, April 30, 2026).
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Key facts
- · Reporting person: Fmr LLC · Sole voting: 10,161,476 · Shared voting: 0 · Sole dispositive: 11,459,204 · Shared dispositive: 0 · SCHEDULE 13G, 2026-11-05
- · Reporting person: Sanders Capital, LLC · Sole voting: 0 · Shared voting: 1,687,070 · Sole dispositive: 0 · Shared dispositive: 3,496,343 · SCHEDULE 13G/A, 2026-08-05
- · Reporting person: Vanguard Portfolio Management · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 7,999,686 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-07-31
- · Reporting person: Vanguard Capital Management · Sole voting: 2,163,149 · Shared voting: 0 · Sole dispositive: 16,318,822 · Shared dispositive: 0 · SCHEDULE 13G, 2026-04-30
- · Holder: Vanguard Portfolio Management · Percent: 5.08% · SCHEDULE 13G
Seagate Technology Holdings Plc has 11 Schedule 13D or 13G filings on record since 2025-07-22. 2 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Vanguard Capital Management | 7.48% | 16,318,822 | SCHEDULE 13G, 2026-04-30 | 2026-03-31 |
| Fmr LLC | 5.1% | 11,459,204 | SCHEDULE 13G, 2026-11-05 | 2026-09-30 |
| Jpmorgan Chase & Co. | 4% | 8,654,624 | SCHEDULE 13G/A, 2025-11-04 | 2025-10-31 |
| Vanguard Portfolio Management | 3.56% | 7,999,686 | SCHEDULE 13G/A, 2026-07-31 | 2026-06-30 |
| Capital Research Global Investors | 3.4% | 7,293,420 | SCHEDULE 13G/A, 2025-08-13 | 2025-06-30 |
| Sanders Capital, LLC | 1.56% | 3,496,343 | SCHEDULE 13G/A, 2026-08-05 | 2026-06-30 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-27 | 2026-03-13 |
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More on Seagate Technology Holdings Plc and the records around it.
Seagate Technology Holdings Plc elsewhere on the record
- Leadership changes Sep 2026
- Who owns it
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)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Vanguard Capital Management | 2,163,149 | 0 | 16,318,822 | 0 | SCHEDULE 13G, 2026-04-30 |
| Fmr LLC | 10,161,476 | 0 | 11,459,204 | 0 | SCHEDULE 13G, 2026-11-05 |
| Abigail P. Johnson | 0 | 0 | 11,459,204 | 0 | SCHEDULE 13G, 2026-11-05 |
| Vanguard Portfolio Management | 0 | 0 | 7,999,686 | 0 | SCHEDULE 13G/A, 2026-07-31 |
| Sanders Capital, LLC | 0 | 1,687,070 | 0 | 3,496,343 | SCHEDULE 13G/A, 2026-08-05 |
| Lewis A. Sanders | 0 | 1,687,070 | 0 | 3,496,343 | SCHEDULE 13G/A, 2026-08-05 |
The latest filing identifies Seagate Technology Holdings Plc by CUSIP G7997R103 and gives its principal executive office as 121 WOODLANDS AVENUE 5, SINGAPORE (SCHEDULE 13G, 2026-11-05).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-22 | Jpmorgan Chase & Co. | 8.4% | SCHEDULE 13G/A |
| 2025-08-13 | Capital Research Global Investors | 3.4% | SCHEDULE 13G/A |
| 2025-10-31 | Jpmorgan Chase & Co. | 5.6% | SCHEDULE 13G/A |
| 2025-11-04 | Jpmorgan Chase & Co. | 4% | SCHEDULE 13G/A |
| 2026-03-27 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-16 | Sanders Capital, LLC | 5.98% | SCHEDULE 13G/A |
| 2026-04-29 | Vanguard Portfolio Management | 5.08% | SCHEDULE 13G |
| 2026-04-30 | Vanguard Capital Management | 7.48% | SCHEDULE 13G |
| 2026-07-31 | Vanguard Portfolio Management | 3.56% | SCHEDULE 13G/A |
| 2026-08-05 | Sanders Capital, LLC | 1.56% | SCHEDULE 13G/A |
| 2026-11-05 | Fmr LLC | 5.1% | SCHEDULE 13G |
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.
Also on the record for Seagate Technology Holdings Plc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| September 4, 2026 | Leadership change: Shankar Arumugavelu departs | — | Leadership changes | Source |
| May 6, 2026 | Leadership change: Michael R. Cannon departs | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.