Eureka Acquisition Corp
EURK- Exchange
- Nasdaq
- Industry
- Water Transportation
- SEC CIK
- 0002000410
No open-market purchases or sales by Eureka Acquisition Corp insiders were filed in the last 90 days; 13 institutions reported holding it in 13F filings for Q2 2026, worth $13.6M in total; no superinvestor holds it.
13F holders, Q2 2025
Institutional positions in Eureka Acquisition Corp as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 26
- +2 vs. Q1 2025
- Shares held
- 4.52M
- +71.4K (+1.6%) vs. Q1 2025
- Total value
- $47.0M
- +$1.22M (+2.7%) vs. Q1 2025
- New holders
- 5
- 4 more added
- Sold out
- 3
- 6 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting EURK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 13 | $13.6M |
| Q1 2026 | 22 | $29.9M |
| Q4 2025 | 20 | $25.6M |
| Q3 2025 | 20 | $25.3M |
| Q2 2025 | 26 | $47.0M |
| Q1 2025 | 25 | $51.1M |
| Q4 2024 | 24 | $48.1M |
| Q3 2024 | 21 | $43.7M |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Eureka Acquisition Corp; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Stanley | 35 | $364 | 0.00% | +26+288.9% | Added |
| UBS Group AG | 4,701 | $48.9K | 0.00% | +202+4.5% | Added |
| Warberg Asset Management LLC | 15,388 | $160.7K | 0.04% | +388+2.6% | Added |
| Heights Capital Management, Inc | 15,400 | $161.2K | 0.05% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 46,970 | $488.5K | 0.00% | 00.0% | Unchanged |
| Polar Asset Management Partners Inc. | 57,000 | $594.2K | 0.01% | −68,000−54.4% | Reduced |
| Mint Tower Capital Management B.V. | 64,777 | $675.0K | 0.10% | 00.0% | Unchanged |
| Gabelli Funds LLC | 72,300 | $753.7K | 0.01% | 00.0% | Unchanged |
| Yakira Capital Management, Inc. | 75,000 | $781.9K | 0.29% | +75,000 | New |
| Gabelli & Co Investment Advisers, Inc. | 89,200 | $929.9K | 0.14% | 00.0% | Unchanged |
| Glazer Capital, LLC | 92,194 | $961.0K | 0.03% | −808−0.9% | Reduced |
| Cable Car Capital LLC | 100,000 | $1.04M | 0.45% | 00.0% | Unchanged |
| Quarry LP | 170,400 | $1.78M | 0.41% | −54,600−24.3% | Reduced |
| Atw Spac Management LLC | 178,457 | $1.86M | 2.85% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 178,457 | $1.86M | 0.06% | 00.0% | Unchanged |
| CNH Partners LLC | 179,141 | $1.88M | 0.04% | −224,265−55.6% | Reduced |
| AQR Capital Management LLC | 179,141 | $1.88M | 0.00% | +179,141 | New |
| Clear Street LLC | 218,955 | $2.28M | 0.01% | +218,955 | New |
| Rivernorth Capital Management, LLC | 225,000 | $2.34M | 0.13% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 247,500 | $2.58M | 0.00% | 00.0% | Unchanged |
| Westchester Capital Management, LLC | 266,000 | $2.76M | 0.16% | +266,000 | New |
| Berkley W R Corp | 305,628 | $3.18M | 0.20% | +1,336+0.4% | Added |
| Karpus Management, Inc. | 327,400 | $3.40M | 0.11% | −412,800−55.8% | Reduced |
| Wolverine Asset Management LLC | 400,000 | $4.19M | 0.07% | −87,940−18.0% | Reduced |
| Vivaldi Asset Management, LLC | 457,915 | $4.75M | 0.32% | 00.0% | Unchanged |
| Mizuho Securities USA LLC | 550,000 | $5.67M | 0.12% | +550,000 | New |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −145,273−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −125,000−100.0% | Sold out |
| Bulldog Investors, LLP | 0 | $0 | 0.00% | −101,000−100.0% | Sold out |
| Mizuho Securities USA LLC | – | – | – | – | Not filed |