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5%+ stakes · Schedule 13D and 13G

Eureka Acquisition Corp: 5%+ holders

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Who has reported owning 5% or more of Eureka Acquisition Corp, from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

As of November 8, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Eureka Acquisition Corp. The largest reported stake is RLH Capital LLC's, at 9.3%. 15 filings are on record since July 3, 2025 (Schedule 13G/A, July 7, 2025).

Kerry Propper also filed stake reports on 5 other companies ↓

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Key facts

  • · Reporting person: Mizuho Financial Group, Inc. · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-13
  • · Reporting person: W. R. Berkley Corporation · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-06
  • · Reporting person: Feis Equities LLC · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-07-14
  • · Reporting person: Wolverine Asset Management, LLC · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-07-09
  • · Holder: Karpus Management, Inc. · Percent: 4.16% · SCHEDULE 13G/A
At 5% or more2
Filings15
Latest filing2026-08-13

Eureka Acquisition Corp has 15 Schedule 13D or 13G filings on record since 2025-07-03. 2 holders' latest filing reports 5% or more of common shares. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
RLH Capital LLC9.3%295,400SCHEDULE 13G/A, 2025-07-072025-06-30
AQR Capital Management, LLC5.65%179,141SCHEDULE 13G/A, 2025-08-142025-06-30
Karpus Management, Inc.4.16%200,925SCHEDULE 13G/A, 2026-04-072026-03-31
Feis Equities LLC0%0SCHEDULE 13G/A, 2026-07-142026-07-07
Mizuho Financial Group, Inc.0%0SCHEDULE 13G/A, 2026-08-132026-06-30
W. R. Berkley Corporation0%0SCHEDULE 13G/A, 2026-08-062026-06-30
0%0SCHEDULE 13G/A, 2025-11-132025-09-30
First Trust Merger Arbitrage Fund0%0SCHEDULE 13G/A, 2025-11-142025-09-30
Wolverine Asset Management, LLC0%0SCHEDULE 13G/A, 2026-07-092026-07-06

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What the Full Report on Eureka Acquisition Corp 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

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Voting and dispositive power, as filed

Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Feis Equities LLC0000SCHEDULE 13G/A, 2026-07-14
Lawrence M. Feis0000SCHEDULE 13G/A, 2026-07-14
Mizuho Financial Group, Inc.0000SCHEDULE 13G/A, 2026-08-13
W. R. Berkley Corporation0000SCHEDULE 13G/A, 2026-08-06
Berkley Insurance Company0000SCHEDULE 13G/A, 2026-08-06
Wolverine Asset Management, LLC0000SCHEDULE 13G/A, 2026-07-09
Wolverine Holdings, LLC0000SCHEDULE 13G/A, 2026-07-09
Christopher L. Gust0000SCHEDULE 13G/A, 2026-07-09
Robert R. Bellick0000SCHEDULE 13G/A, 2026-07-09

The latest filing identifies Eureka Acquisition Corp by CUSIP G32168109 and gives its principal executive office as 14 Prudential Tower, Singapore (SCHEDULE 13G/A, 2026-08-13).

Timeline

FiledHolderPercentFiling
2025-07-03Feis Equities LLC8.26%SCHEDULE 13G
2025-07-07Karpus Management, Inc.4.28%SCHEDULE 13G/A
2025-07-07RLH Capital LLC9.3%SCHEDULE 13G/A
2025-08-13Mizuho Financial Group, Inc.8.9%SCHEDULE 13G/A
2025-08-14AQR Capital Management, LLC5.65%SCHEDULE 13G/A
2025-11-10W. R. Berkley Corporation9%SCHEDULE 13G
2025-11-13Kerry Propper0%SCHEDULE 13G/A
2025-11-14Karpus Management, Inc.6.77%SCHEDULE 13G
2025-11-14First Trust Merger Arbitrage Fund0%SCHEDULE 13G/A
2026-02-02Feis Equities LLC8.43%SCHEDULE 13G/A
2026-04-07Karpus Management, Inc.4.16%SCHEDULE 13G/A
2026-07-09Wolverine Asset Management, LLC0%SCHEDULE 13G/A
2026-07-14Feis Equities LLC0%SCHEDULE 13G/A
2026-08-06W. R. Berkley Corporation0%SCHEDULE 13G/A
2026-08-13Mizuho Financial Group, Inc.0%SCHEDULE 13G/A

Questions about who owns Eureka Acquisition Corp

Who owns Eureka Acquisition Corp?

On this page, 2 holders' latest ownership filings report 5% or more of Eureka Acquisition Corp: RLH Capital LLC (9.3%, Schedule 13G/A, filed 2025-07-07) and AQR Capital Management, LLC (5.65%, Schedule 13G/A, filed 2025-08-14).

Who are the largest shareholders of Eureka Acquisition Corp?

By the share each holder's latest filing reports, the largest holders of Eureka Acquisition Corp on this page are RLH Capital LLC (9.3%) and AQR Capital Management, LLC (5.65%).

When did RLH Capital LLC buy into Eureka Acquisition Corp?

The filings give report dates, not purchase dates. The earliest filing from RLH Capital LLC on this page is the Schedule 13G/A, filed 2025-07-07, reporting 9.3%. 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%); 15 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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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.

Cite this page

Permanent URL: https://mentionfox.com/stakes/eureka-acquisition
Last updated 2026-11-08
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Who owns 5% or more of Eureka Acquisition Corp? 2 holders at 5% or more, largest RLH Capital LLC 9.3%. MentionFox, 2026-11-08. https://mentionfox.com/stakes/eureka-acquisition