Eureka Acquisition Corp.-RTSEURKRPreferred / convertible

13F holders, Q4 2025 (December 31)
20holders −1
4new positions
3sold out
1famous investor
$0.39avg. 13F price*

At the end of Q4 2025, 20 institutions reported holding Eureka Acquisition Corp.-RTS (EURKR) in their 13F filings, down 1 from Q3 2025. 4 opened new positions and 3 sold out. The largest holders were Harraden Circle Investments, LLC ($718K), Highbridge Capital Management LLC ($216K) and K2 Principal Fund, L.P. ($124K). One famous investor held it David E. Shaw ( of D. E. Shaw & Co.'s portfolio).

Company
Eureka Acquisition Corp.-RTS
CUSIP
G32168125
Latest filing quarter
Q2 2026

History

Number of 13F holders

0510152025 Q3 2024: 14Q3 2024Q4 2024: 20Q4 2024Q1 2025: 24Q1 2025Q2 2025: 23Q2 2025Q3 2025: 21Q3 2025Q4 2025: 20Q4 2025Q1 2026: 19Q1 2026Q2 2026: 19Q2 2026

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions4$142K
Exits3$89K

All 13F filers, Q3 2025 → Q4 2025: 1,202,576 shares bought and 1,402,970 shares sold, net −200,394 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 20 holders
Harraden Circle Investments, LLC — Add +78.4% 1,889,075 $718K
Highbridge Capital Management LLC — Reduce -54.8% 490,956 $216K
K2 Principal Fund, L.P. — New 326,474 $124K
Boothbay Fund Management, LLC — No change 258,457 $98K
Rivernorth Capital Management, LLC — No change 225,000 $86K
Clear Street Group Inc. — No change 177,699 $68K
Polar Asset Management Partners Inc. — No change 125,000 $48K
Cable Car Capital, LP — No change 100,000 $38K
GABELLI & Co INVESTMENT ADVISERS, INC. — No change 89,200 $34K
Toronto Dominion Bank — Reduce -82.9% 85,300 $32K
AQR Arbitrage LLC — Reduce -22.9% 76,374 $29K
Yakira Capital Management, Inc. — No change 75,000 $29K
Gabelli Funds LLC — No change 72,300 $27K
Mint Tower Capital Management B.V. — No change 64,777 $25K
D. E. Shaw & Co. — No change 45,000 $20K
Bulldog Investors, LLP — No change 51,000 $19K
BNP Paribas Financial Markets — New 22,702 $9K
Two Sigma Securities, LLC — New 14,294 $5K
Meteora Capital, LLC — New 9,031 $3K
UBS Group AG — Reduce -17.0% 3,413 $1K

"% of holder's portfolio" is EURKR's weight in each manager's 13F, not the share of Eureka Acquisition Corp.-RTS the manager owns.