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5%+ stakes · Schedule 13D and 13G

Eureka Acquisition Corp: 5%+ holders

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.

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
Kerry Propper0%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

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

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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 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Eureka Acquisition Corp 5%+ holders: 2 at 5% or more, largest RLH Capital LLC 9.3%. MentionFox, 2026-09-27. https://mentionfox.com/stakes/eureka-acquisition