22 institutions reported holding $29.9M of EUREKA ACQUISITION CORP (EURK) in SEC 13F filings for 2026-03-31. Largest institutional holders: WOLVERINE ASSET MANAGEMENT LLC ($4.5M), BERKLEY W R CORP ($3.6M), RLH Capital LLC ($3.3M), MIZUHO SECURITIES USA LLC ($3.3M), Karpus Management, Inc. ($2.3M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | WOLVERINE ASSET MANAGEMENT LLC | $4.5M | 395,924 | Hold |
| 2 | BERKLEY W R CORP | $3.6M | 315,488 | Added |
| 3 | RLH Capital LLC | $3.3M | 295,400 | New |
| 4 | MIZUHO SECURITIES USA LLC | $3.3M | 300,455 | Added |
| 5 | Karpus Management, Inc. | $2.3M | 200,925 | Trimmed |
| 6 | AQR Arbitrage LLC | $1.9M | 171,322 | Trimmed |
| 7 | Polar Asset Management Partners Inc. | $1.9M | 167,000 | Added |
| 8 | Quarry LP | $1.8M | 155,400 | Hold |
| 9 | Crossingbridge Advisors, LLC | $1.3M | 116,689 | Trimmed |
| 10 | Clear Street Group Inc. | $1.1M | 100,667 | Added |
| 11 | Cable Car Capital, LP | $1.1M | 100,000 | Hold |
| 12 | Yakira Capital Management, Inc. | $827,264 | 72,951 | Trimmed |
| 13 | Westchester Capital Management, LLC | $567,000 | 50,000 | Hold |
| 14 | METEORA CAPITAL, LLC | $567,000 | 50,000 | Trimmed |
| 15 | HRT FINANCIAL LP | $555,000 | 49,000 | Hold |
| 16 | Logan Stone Capital, LLC | $481,564 | 42,466 | New |
| 17 | GOLDMAN SACHS GROUP INC | $236,530 | 20,858 | Hold |
| 18 | TORONTO DOMINION BANK | $183,708 | 16,200 | Added |
| 19 | HEIGHTS CAPITAL MANAGEMENT, INC | $174,636 | 15,400 | Hold |
| 20 | Warberg Asset Management LLC | $144,959 | 12,783 | Trimmed |
| 21 | UBS Group AG | $1,009 | 89 | Trimmed |
| 22 | MORGAN STANLEY | $590 | 52 | Added |
Source: SEC Form 13F filings · as of 2026-03-31