As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Insight Digital Partners II. The largest reported stake is Insight Digital Partners Sponsor LLC's, at 24.1%. 5 filings are on record since November 4, 2025 (Schedule 13G, February 6, 2026).
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Key facts
- · Reporting person: Polar Asset Management Partners Inc. · Sole voting: 1,499,000 · Shared voting: 0 · Sole dispositive: 1,499,000 · Shared dispositive: 0 · SCHEDULE 13G, 2026-02-17
- · Reporting person: Harraden Circle Investments, LLC · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-02-13
- · Reporting person: Adage Capital Management, L.P. · Sole voting: 0 · Shared voting: 1,350,000 · Sole dispositive: 0 · Shared dispositive: 1,350,000 · SCHEDULE 13G, 2026-02-12
- · Reporting person: Insight Digital Partners Sponsor LLC · Sole voting: 5,540,000 · Shared voting: 0 · Sole dispositive: 5,540,000 · Shared dispositive: 0 · SCHEDULE 13G, 2026-02-06
- · Holder: Harraden Circle Investments, LLC · Percent: 5.22% · SCHEDULE 13G
Insight Digital Partners II has 5 Schedule 13D or 13G filings on record since 2025-11-04. 3 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 |
|---|---|---|---|---|
| Insight Digital Partners Sponsor LLC | 24.1% | 5,540,000 | SCHEDULE 13G, 2026-02-06 | 2025-10-28 |
| Polar Asset Management Partners Inc. | 8.6% | 1,499,000 | SCHEDULE 13G, 2026-02-17 | 2025-12-31 |
| Adage Capital Management, L.P. | 7.83% | 1,350,000 | SCHEDULE 13G, 2026-02-12 | 2025-12-31 |
| Harraden Circle Investments, LLC | 0% | 0 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
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More on Insight Digital Partners II and the records around it.
Companies that share a holder
- Polar Asset Management Partners Inc. also filed stake reports on 69 other companies: Aeon Acquisition I Corp. (Aug 2026), Bitcoin Depot Inc. (Aug 2026), ACP Holdings Acquisition Corp. (Aug 2026)
- Harraden Circle Investments, LLC also filed stake reports on 95 other companies: Calisa Acquisition Corp (Nov 2026), Texas Ventures Acquisition III Corp (Nov 2026), Columbus Acquisition Corp (Oct 2026)
- Adage Capital Management, L.P. also filed stake reports on 136 other companies: ACP Holdings Acquisition Corp. (Aug 2026), AmperCap Acquisition Company (Aug 2026), Aura Biosciences, Inc. (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Insight Digital Partners Sponsor LLC | 5,540,000 | 0 | 5,540,000 | 0 | SCHEDULE 13G, 2026-02-06 |
| Michael Singer | 5,540,000 | 0 | 5,540,000 | 0 | SCHEDULE 13G, 2026-02-06 |
| Polar Asset Management Partners Inc. | 1,499,000 | 0 | 1,499,000 | 0 | SCHEDULE 13G, 2026-02-17 |
| Adage Capital Management, L.P. | 0 | 1,350,000 | 0 | 1,350,000 | SCHEDULE 13G, 2026-02-12 |
| Robert Atchinson | 0 | 1,350,000 | 0 | 1,350,000 | SCHEDULE 13G, 2026-02-12 |
| Phillip Gross | 0 | 1,350,000 | 0 | 1,350,000 | SCHEDULE 13G, 2026-02-12 |
| Harraden Circle Investments, LLC | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Investors GP, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Investors GP, LLC | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Investors, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Special Opportunities, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Strategic Investments, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Harraden Circle Concentrated, LP | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Frederick V. Fortmiller, Jr. | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-13 |
The latest filing names Insight Digital Partners II, with its principal executive office as 17 State Street, Suite 4000, New York, NY 10004 (SCHEDULE 13G, 2026-02-17).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-04 | Harraden Circle Investments, LLC | 5.22% | SCHEDULE 13G |
| 2026-02-06 | Insight Digital Partners Sponsor LLC | 24.1% | SCHEDULE 13G |
| 2026-02-12 | Adage Capital Management, L.P. | 7.83% | SCHEDULE 13G |
| 2026-02-13 | Harraden Circle Investments, LLC | 0% | SCHEDULE 13G/A |
| 2026-02-17 | Polar Asset Management Partners Inc. | 8.6% | SCHEDULE 13G |
Questions about who owns Insight Digital Partners II
Who owns Insight Digital Partners II?
On this page, 3 holders' latest ownership filings report 5% or more of Insight Digital Partners II: Insight Digital Partners Sponsor LLC (24.1%, Schedule 13G, filed 2026-02-06), Polar Asset Management Partners Inc. (8.6%, Schedule 13G, filed 2026-02-17) and Adage Capital Management, L.P. (7.83%, Schedule 13G, filed 2026-02-12).
Who are the largest shareholders of Insight Digital Partners II?
By the share each holder's latest filing reports, the largest holders of Insight Digital Partners II on this page are Insight Digital Partners Sponsor LLC (24.1%), Polar Asset Management Partners Inc. (8.6%) and Adage Capital Management, L.P. (7.83%).
When did Insight Digital Partners Sponsor LLC buy into Insight Digital Partners II?
The filings give report dates, not purchase dates. The earliest filing from Insight Digital Partners Sponsor LLC on this page is the Schedule 13G, filed 2026-02-06, reporting 24.1%.
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%); 5 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 Insight Digital Partners II
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| October 30, 2025 | IPO filing, Form 424B4 | — | IPO filings | Source |
| October 7, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| October 1, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| August 20, 2025 | 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.