Plutonian Acquisition Corp II: 5%+ holders

As of November 10, 2026, 6 holders' latest Schedule 13D or 13G filings report owning 5% or more of Plutonian Acquisition Corp II. The largest reported stake is Highbridge Capital Management, LLC's, at 8.7%. 10 filings are on record since May 5, 2026 (Schedule 13G, August 14, 2026).

Space Summit Capital LLC also filed stake reports on 9 other companies ↓

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Key facts

• Filing 2026-11-09 · Reporting person: W. R. Berkley Corporation · Sole voting: 0 · Shared voting: 710,103 · Sole dispositive: 0 · Shared dispositive: 710,103 · SCHEDULE 13G, 2026-11-09
• Filing 2026-08-14 · Reporting person: Highbridge Capital Management, LLC · Sole voting: 992,077 · Shared voting: 0 · Sole dispositive: 992,077 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-14
• Filing 2026-08-14 · Reporting person: Harraden Circle Investments, LLC · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-14
• Filing 2026-08-13 · Reporting person: Magnetar Financial LLC · Sole voting: 0 · Shared voting: 650,000 · Sole dispositive: 0 · Shared dispositive: 650,000 · SCHEDULE 13G, 2026-08-13
• Filing 2026-08-13 · Reporting person: Decagon Asset Management LLP · Sole voting: 585,000 · Shared voting: 0 · Sole dispositive: 585,000 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-13

Plutonian Acquisition Corp II has 10 Schedule 13D or 13G filings on record since 2026-05-05. 6 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

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More on Plutonian Acquisition Corp II and the records around it.

Companies that share a holder

• Space Summit Capital LLC also filed stake reports on 9 other companies: Pine Tree Acquisition Corp. (Oct 2026), East West Ave Acquisition Corp. (Aug 2026), Southern Cross Acquisition I Corp. (Jul 2026)
• Decagon Asset Management LLP also filed stake reports on 14 other companies: Oaktree Acquisition Corp. III Life Sciences (Aug 2026), Alpex Acquisition Corp (Aug 2026), APEX Tech Acquisition Inc. (Aug 2026)
• TD SECURITIES (USA) LLC also filed stake reports on 27 other companies: Cal Redwood Acquisition Corp. (Aug 2026), CANTOR EQUITY PARTNERS III, INC. (Aug 2026), GigCapital7 Corp. (Aug 2026)

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What the Full Report on Plutonian Acquisition Corp II covers

1. The Short Answer

2. Which Company This Is

3. What They Do, And How The Money Works

4. Who Runs It, And How To Reach Them

5. The Money: Funding, Valuation, Runway

6. Who Pays Them, And Who They Are Up Against

7. Warning Bells

8. Sources

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Voting and dispositive power, as filed

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The latest filing identifies Plutonian Acquisition Corp II by CUSIP G71382108 and gives its principal executive office as 1216 Broadway, New York, NY 10001 (SCHEDULE 13G, 2026-11-09).

What the percentages are based on

As of June 30, 2026, each of the Reporting Persons were deemed to be the beneficial owner constituting approximately 5.71% of the total number of shares outstanding (based upon the information provided by the Issuer in Form 10-Q filed on July 15, 2026, there were approximately 11,383,837 Shares outstanding).Magnetar Financial LLC, SCHEDULE 13G, 2026-08-13

3.29 - The percentage set forth in row 11 of the cover page for each Reporting Person is based on 10,750,000 Class A ordinary shares outstanding as of May 5, 2026, as reported by the Issuer in 8-K filing, filed with the Securities and Exchange Commission on May 11, 2026.Feis Equities LLC, SCHEDULE 13G/A, 2026-07-27

Timeline

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Questions about who owns Plutonian Acquisition Corp II

Who owns Plutonian Acquisition Corp II?

On this page, 6 holders' latest ownership filings report 5% or more of Plutonian Acquisition Corp II: Highbridge Capital Management, LLC (8.7%, Schedule 13G, filed 2026-08-14), Td Securities (Usa) LLC (6.8%, Schedule 13G, filed 2026-08-12), Space Summit Capital LLC (6.5%, Schedule 13G, filed 2026-05-06), W. R. Berkley Corporation (6.2%, Schedule 13G, filed 2026-11-09) and Magnetar Financial LLC (5.71%, Schedule 13G, filed 2026-08-13); 1 more is listed above.

Who are the largest shareholders of Plutonian Acquisition Corp II?

By the share each holder's latest filing reports, the largest holders of Plutonian Acquisition Corp II on this page are Highbridge Capital Management, LLC (8.7%), Td Securities (Usa) LLC (6.8%) and Space Summit Capital LLC (6.5%).

When did Highbridge Capital Management, LLC buy into Plutonian Acquisition Corp II?

The filings give report dates, not purchase dates. The earliest filing from Highbridge Capital Management, LLC on this page is the Schedule 13G, filed 2026-08-14, reporting 8.7%.

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%); 10 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 Plutonian Acquisition Corp II

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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.

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