As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of GSR III Acquisition Corp. The largest reported stake is Barclays PLC's, at 5.72%. 13 filings are on record since August 8, 2025 (Schedule 13G, November 12, 2025).
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Key facts
- · Holder: Merus Global Investments, LLC · Percent: 0% · SCHEDULE 13G/A
- · Holder: The Goldman Sachs Group, Inc. · Percent: 0% · SCHEDULE 13G/A
- · Holder: Barclays PLC · Percent: 5.72% · SCHEDULE 13G
- · Holder: Magnetar Financial LLC · Percent: 2.5% · SCHEDULE 13G/A
- · Holder: Merus Global Investments, LLC · Percent: 5.8% · SCHEDULE 13G
GSR III Acquisition Corp. has 13 Schedule 13D or 13G filings on record since 2025-08-08. 2 holders' latest filing reports 5% or more of class a ordinary shares, par value $0.0001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Barclays PLC | 5.72% | 1,339,895 | SCHEDULE 13G, 2025-11-12 | 2025-09-30 |
| Harraden Circle Investments, LLC | 5.26% | 1,231,259 | SCHEDULE 13G, 2025-09-15 | 2025-09-10 |
| Magnetar Financial LLC | 2.5% | 585,653 | SCHEDULE 13G/A, 2025-11-12 | 2025-09-30 |
| Westchester Capital Management, LLC | 2.2% | 516,137 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| Polar Asset Management Partners Inc. | 1.2% | 280,569 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| AQR Capital Management, LLC | 1.1% | 256,832 | SCHEDULE 13G/A, 2025-08-13 | 2025-06-30 |
| Hudson Bay Capital Management LP | 0.56% | 130,775 | SCHEDULE 13G/A, 2025-08-08 | 2025-06-30 |
| Merus Global Investments, LLC | 0% | 0 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
| The Goldman Sachs Group, Inc. | 0% | 86 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
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More on GSR III Acquisition Corp. and the records around it.
Companies that share a holder
- Merus Global Investments, LLC also filed stake reports on 10 other companies: General Fusion Group Ltd. (Aug 2026), D. Boral ARC Acquisition I Corp. (Jun 2026), Bleichroeder Acquisition Corp. II (Jun 2026)
- Westchester Capital Management, LLC also filed stake reports on 31 other companies: Lakeshore Acquisition III Corp. (Aug 2026), Sizzle Acquisition Corp. II (Aug 2026), Tavia Acquisition Corp. (Aug 2026)
- Hudson Bay Capital Management LP also filed stake reports on 34 other companies: Newbridge Acquisition Ltd (Nov 2026), Eos Energy Enterprises, Inc. (Nov 2026), FG Imperii Acquisition Corp. (Nov 2026)
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What the Full Report on GSR III Acquisition Corp. covers
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Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-08 | Magnetar Financial LLC | 6.02% | SCHEDULE 13G/A |
| 2025-08-08 | Hudson Bay Capital Management LP | 0.56% | SCHEDULE 13G/A |
| 2025-08-12 | Barclays PLC | 4.69% | SCHEDULE 13G/A |
| 2025-08-13 | AQR Capital Management, LLC | 1.1% | SCHEDULE 13G/A |
| 2025-08-14 | Merus Global Investments, LLC | 2.4% | SCHEDULE 13G/A |
| 2025-08-14 | Westchester Capital Management, LLC | 2.2% | SCHEDULE 13G/A |
| 2025-08-14 | Polar Asset Management Partners Inc. | 1.2% | SCHEDULE 13G/A |
| 2025-09-15 | Harraden Circle Investments, LLC | 5.26% | SCHEDULE 13G |
| 2025-09-26 | Merus Global Investments, LLC | 5.8% | SCHEDULE 13G |
| 2025-11-12 | Barclays PLC | 5.72% | SCHEDULE 13G |
| 2025-11-12 | Magnetar Financial LLC | 2.5% | SCHEDULE 13G/A |
| 2025-11-14 | The Goldman Sachs Group, Inc. | 0% | SCHEDULE 13G/A |
| 2026-02-17 | Merus Global Investments, LLC | 0% | SCHEDULE 13G/A |
Questions about who owns GSR III Acquisition Corp.
Who owns GSR III Acquisition Corp.?
On this page, 2 holders' latest ownership filings report 5% or more of GSR III Acquisition Corp.: Barclays PLC (5.72%, Schedule 13G, filed 2025-11-12) and Harraden Circle Investments, LLC (5.26%, Schedule 13G, filed 2025-09-15).
Who are the largest shareholders of GSR III Acquisition Corp.?
By the share each holder's latest filing reports, the largest holders of GSR III Acquisition Corp. on this page are Barclays PLC (5.72%) and Harraden Circle Investments, LLC (5.26%).
When did Barclays PLC buy into GSR III Acquisition Corp.?
The filings give report dates, not purchase dates. The earliest filing from Barclays PLC on this page is the Schedule 13G/A, filed 2025-08-12, reporting 4.69%; its latest, Schedule 13G filed 2025-11-12, reports 5.72%. That earliest filing is itself an amendment, which updates an earlier report.
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%); 13 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 GSR III Acquisition Corp.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| November 8, 2024 | IPO filing, Form 424B4 | $10 a share | IPO filings | Source |
| November 7, 2024 | IPO filing, Form S-1/A | — | IPO filings | Source |
| October 31, 2024 | IPO filing, Form S-1/A | — | IPO filings | Source |
| October 25, 2024 | IPO filing, Form S-1/A | — | IPO filings | Source |
| September 10, 2024 | IPO filing, Form S-1/A | — | IPO filings | Source |
| July 16, 2024 | IPO filing, Form S-1 | — | IPO filings | 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.