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, Q3 2025
Institutional positions in Eureka Acquisition Corp as of Sep 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
- 20
- −5 vs. Q2 2025
- Shares held
- 2.37M
- −1.93M (−44.9%) vs. Q2 2025
- Total value
- $25.3M
- −$19.5M (−43.5%) vs. Q2 2025
- New holders
- 5
- 2 more added
- Sold out
- 10
- 7 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Eureka Acquisition Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Stanley | 40 | $428 | 0.00% | +5+14.3% | Added |
| UBS Group AG | 594 | $6.35K | 0.00% | −4,107−87.4% | Reduced |
| Toronto Dominion Bank | 3,327 | $35.6K | 0.00% | +3,327 | New |
| Heights Capital Management, Inc | 15,400 | $164.6K | 0.05% | 00.0% | Unchanged |
| Warberg Asset Management LLC | 15,783 | $168.7K | 0.05% | +395+2.6% | Added |
| Goldman Sachs Group Inc | 20,858 | $223.0K | 0.00% | −26,112−55.6% | Reduced |
| HRT Financial LP | 49,282 | $526.0K | 0.00% | +49,282 | New |
| Westchester Capital Management, LLC | 50,000 | $534.5K | 0.03% | −216,000−81.2% | Reduced |
| Polar Asset Management Partners Inc. | 57,000 | $609.4K | 0.01% | 00.0% | Unchanged |
| Clear Street Group Inc. | 68,231 | $729.5K | 0.00% | +68,231 | New |
| Yakira Capital Management, Inc. | 75,000 | $801.8K | 0.30% | 00.0% | Unchanged |
| Cable Car Capital LLC | 100,000 | $1.07M | 0.46% | 00.0% | Unchanged |
| Meteora Capital, LLC | 129,654 | $1.39M | 0.15% | +129,654 | New |
| Crossingbridge Advisors, LLC | 133,889 | $1.43M | 0.73% | +133,889 | New |
| Quarry LP | 155,400 | $1.66M | 0.41% | −15,000−8.8% | Reduced |
| CNH Partners LLC | 179,141 | $1.92M | 0.05% | 00.0% | Unchanged |
| Mizuho Securities USA LLC | 285,355 | $2.98M | 0.06% | −264,645−48.1% | Reduced |
| Berkley W R Corp | 305,628 | $3.27M | 0.21% | 00.0% | Unchanged |
| Karpus Management, Inc. | 326,825 | $3.49M | 0.11% | −575−0.2% | Reduced |
| Wolverine Asset Management LLC | 398,378 | $4.26M | 0.06% | −1,622−0.4% | Reduced |
| Vivaldi Asset Management, LLC | 0 | $0 | 0.00% | −457,915−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −247,500−100.0% | Sold out |
| Rivernorth Capital Management, LLC | 0 | $0 | 0.00% | −225,000−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −179,141−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −178,457−100.0% | Sold out |
| Atw Spac Management LLC | 0 | $0 | 0.00% | −178,457−100.0% | Sold out |
| Glazer Capital, LLC | 0 | $0 | 0.00% | −92,194−100.0% | Sold out |
| Gabelli & Co Investment Advisers, Inc. | 0 | $0 | 0.00% | −89,200−100.0% | Sold out |
| Gabelli Funds LLC | 0 | $0 | 0.00% | −72,300−100.0% | Sold out |
| Mint Tower Capital Management B.V. | 0 | $0 | 0.00% | −64,777−100.0% | Sold out |
| Clear Street LLC | – | – | – | – | Not filed |