Comparable stake leader
RLH Capital LLC
SEC ownership of Eureka Acquisition Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002000410.
Disclosed value leader
MIZUHO FINANCIAL GROUP INC
Comparable rows
18/42
Latest evidence
31 Mar 2026
- Public ticker
- EURK, EURKR, EURKU on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
RLH Capital LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
18 of 42
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
RLH Capital LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002000410
- Issuer location
- Singapore
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Eureka Acquisition Corp (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
RLH Capital LLC
Disclosed value leader
MIZUHO FINANCIAL GROUP INC
Comparable rows
18/42
Latest evidence
31 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 9.3%
24 rows are not safely comparable across share classes.
13D/G row: RLH Capital LLC
Showing 1-8 of 42 holder rows.
Quick read
RLH Capital LLC leads the comparable SEC ownership view at 9.3%.
18 of 42 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens RLH Capital LLC's linked filing trail.
Comparable ownership
Top 5
RLH Capital LLC
9.3%
BERKLEY W R CORP
9%
MIZUHO FINANCIAL GROUP INC
8.9%
Karpus Management, Inc.
6.8%
AQR CAPITAL MANAGEMENT LLC
5.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 42 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| RLH Capital LLC |
13F
13D/G
Company
|
9.3%
from 13D/G
|
$3,349,836
295,400 shares
|
— | 31 Mar 2026 |
| BERKLEY W R CORP |
13F
13D/G
Company · W. R. Berkley Corporation
|
9%
from 13D/G
|
$3,577,634
315,488 shares
|
— | 31 Mar 2026 |
| MIZUHO FINANCIAL GROUP INC |
13D/G
|
8.9%
|
$5,791,500
550,000 shares
|
+$283,257 | 30 Jun 2025 |
| Karpus Management, Inc. |
13D/G
13F
Company
|
6.8%
|
$3,494,086
326,825 shares
|
-$6,147 | 30 Sep 2025 |
| AQR CAPITAL MANAGEMENT LLC |
13D/G
|
5.6%
|
$1,886,355
179,141 shares
|
$0 | 30 Jun 2025 |
| BARCLAYS PLC |
13D/G
|
5.2%
|
$3,347,500
325,000 shares
|
$0 | 30 Sep 2024 |
| WOLVERINE ASSET MANAGEMENT LLC |
13F
Company
|
12%
|
$4,489,778
395,924 shares
|
— | 31 Mar 2026 |
| MIZUHO SECURITIES USA LLC |
13F
3/4/5
Company · 10%+ Owner
|
8.9%
|
$3,308,010
300,455 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$49,590.
Buys
$0
Insiders: 0
Sells
$49,590
Insiders: 1
Net
-$49,590
Shares: -4,550
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 4,550
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 4,550 | $0 | $49,590 | -$49,590 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-12 of 12 reporting-owner rows connected to Eureka Acquisition Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
12
Largest Forms 3/4/5 holder
MIZUHO SECURITIES USA LLC
Net 12M change
-$49,590
Latest report
16 Jul 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| MIZUHO SECURITIES USA LLC | 10%+ Owner | $2,999,230 | Filing P/S | 02 Jul 2025 | ||
| Robert Bellick | Former 10% Owner | $0 | Mixed | 16 Jul 2025 | ||
| WOLVERINE ASSET MANAGEMENT LLC | Former 10% Owner | $0 | -$49,590 | -100% | Mixed | 16 Jul 2025 |
| Christopher Gust | Former 10% Owner | $0 | Mixed | 16 Jul 2025 | ||
| Wolverine Holdings, L.P. | Former 10% Owner | $0 | Mixed | 16 Jul 2025 | ||
| Lauren Simmons | Director | Mixed | 01 Jul 2024 | |||
| Zhechen Wang | Chief Financial Officer | Mixed | 01 Jul 2024 | |||
| Cameron Richard Johnson | Director | Mixed | 20 Mar 2025 | |||
| Fen Zhang | Director, 10%+ Owner | Mixed | 01 Jul 2024 | |||
| Hercules Capital Management Corp | 10%+ Owner | Mixed | 01 Jul 2024 | |||
| Anthony Manshek Wong | Director | Mixed | 01 Jul 2024 | |||
| Kevin McKenzie | Director | Mixed | 01 Jul 2024 |
Recent insider transactions for Eureka Acquisition Corp
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| WOLVERINE ASSET MANAGEMENT LLC | EURK | Class A Ordinary Shares | Other | -100% | -395,924 | 0 | 24 Jun 2026 | by Wolverine Flagship Fund Trading Limited | ||
| WOLVERINE ASSET MANAGEMENT LLC | EURK | Class A Ordinary Shares | Other | -100% | -395,924 | 0 | 24 Jun 2026 | by Wolverine Flagship Fund Trading Limited | ||
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Other | -100% | -395,924 | 0 | 24 Jun 2026 | by Wolverine Flagship Fund Trading Limited | ||
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Other | -100% | -395,924 | 0 | 24 Jun 2026 | by Wolverine Flagship Fund Trading Limited | ||
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | -0.1% | $4,428 | $11.07 | -400 | 395,924 | 10 Dec 2025 | by Wolverine Flagship Fund Trading Limited |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | -0.25% | $10,890 | $10.89 | -1,000 | 396,324 | 09 Dec 2025 | by Wolverine Flagship Fund Trading Limited |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $21.82 | $10.91 | -2 | 397,324 | 05 Dec 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $21.82 | $10.91 | -2 | 397,324 | 05 Dec 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $109 | $10.89 | -10 | 397,326 | 01 Dec 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $109 | $10.89 | -10 | 397,326 | 01 Dec 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | -0.25% | $10,880 | $10.88 | -1,000 | 397,336 | 07 Nov 2025 | by Wolverine Flagship Fund Trading Limited |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | -0.25% | $10,880 | $10.88 | -1,000 | 397,336 | 07 Nov 2025 | by Wolverine Flagship Fund Trading Limited |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | -0.25% | $10,880 | $10.88 | -1,000 | 397,336 | 07 Nov 2025 | by Wolverine Flagship Fund Trading Limited |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $43.52 | $10.88 | -4 | 398,336 | 06 Nov 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $43.52 | $10.88 | -4 | 398,336 | 06 Nov 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $43.52 | $10.88 | -4 | 398,336 | 06 Nov 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $196 | $10.88 | -18 | 398,340 | 05 Nov 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $196 | $10.88 | -18 | 398,340 | 05 Nov 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | $196 | $10.88 | -18 | 398,340 | 05 Nov 2025 | by Wolverine Flagship Fund Trading Limited | |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | -0.01% | $218 | $10.88 | -20 | 398,358 | 04 Nov 2025 | by Wolverine Flagship Fund Trading Limited |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | -0.01% | $218 | $10.88 | -20 | 398,358 | 04 Nov 2025 | by Wolverine Flagship Fund Trading Limited |
| Wolverine Asset Management Llc | EURK | Class A Ordinary Shares | Sale | -0.01% | $218 | $10.88 | -20 | 398,358 | 04 Nov 2025 | by Wolverine Flagship Fund Trading Limited |
* marks a reported price that did not pass the local price check.