Who owns Eureka Acquisition Corp?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of EURKR from SEC Form 13F filings across 19 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 19 institutions disclosed 4.2M shares of Eureka Acquisition Corp worth $1.4M — about 144.7% of shares outstanding; the largest disclosed holder is Harraden Circle Investments, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
19
13F holders
$1.4M
value, 2026 filers
144.7%
of shares outstanding (4.2M sh)
0
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of EURKR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Harraden Circle Investments, LLC | 2.0M | $687,426 | 0.1% | 67.7% | +4.0% |
| 2 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | 536,116 | $187,641 | 0.0% | 18.5% | +8.7% |
| 3 | BOOTHBAY FUND MANAGEMENT, LLC | 258,457 | $90,460 | 0.0% | 8.9% | 0.0% |
| 4 | K2 PRINCIPAL FUND, L.P. | 226,185 | $56,546 | 0.0% | 7.8% | -30.7% |
| 5 | RIVERNORTH CAPITAL MANAGEMENT, LLC | 225,000 | $65,250 | 0.0% | 7.8% | 0.0% |
| 6 | Clear Street Group Inc. | 190,788 | $66,776 | 0.0% | 6.6% | +6.1% |
| 7 | Polar Asset Management Partners Inc. | 125,000 | $45,688 | 0.0% | 4.3% | 0.0% |
| 8 | Cable Car Capital, LP | 100,000 | $35,000 | 0.0% | 3.4% | 0.0% |
| 9 | GABELLI & Co INVESTMENT ADVISERS, INC. | 89,200 | $31,220 | 0.0% | 3.1% | 0.0% |
| 10 | AQR Arbitrage LLC | 75,366 | $26,378 | 0.0% | 2.6% | 0.0% |
| 11 | Yakira Capital Management, Inc. | 72,951 | $25,533 | 0.0% | 2.5% | 0.0% |
| 12 | GABELLI FUNDS LLC | 72,300 | $25,305 | 0.0% | 2.5% | 0.0% |
| 13 | Mint Tower Capital Management B.V. | 64,777 | $23,000 | 0.0% | 2.2% | 0.0% |
| 14 | TORONTO DOMINION BANK | 62,142 | $21,750 | 0.0% | 2.1% | -27.1% |
| 15 | Bulldog Investors, LLP | 51,000 | $12,801 | 0.0% | 1.8% | 0.0% |
| 16 | D. E. Shaw & Co., Inc. | 45,000 | $15,750 | 0.0% | 1.6% | 0.0% |
| 17 | BNP PARIBAS FINANCIAL MARKETS | 22,702 | $8,286 | 0.0% | 0.8% | 0.0% |
| 18 | TWO SIGMA SECURITIES, LLC | 13,420 | $3,368 | 0.0% | 0.5% | -3.0% |
| 19 | UBS Group AG | 3,378 | $848 | 0.0% | 0.1% | -1.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation. Research, not investment advice.