EURKR · Eureka Acquisition Corp · Holdings

$0.25 At close · Oct 22

Market Cap

$25.07M

2.17M

Volume · Oct 22 917 Avg daily vol (15 sessions) 715

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of EURKR: 13F, 13D and 13G, insiders and funds →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

Quarter:

Holders: 19

Total Value: $1,406,049

Total Shares: 4,197,856

Institutional Ownership Trend

8 quarters

Holder Concentration

Across 19 13F filers · Δ vs Mar 31, 2026

Top Holder

48.9%

+3.5 pts

Top 5

78.1%

+1.9 pts

Top 10

91.9%

+1.8 pts

HHI

2,707

Highly concentrated+325

Who Holds EURKR

Last 8 quarters through Jun 30, 2026

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026: 19 filers, like-for-like change +0.1%; actively managed books +0.1%.

Holder type	Share	Filers	Change
Registered adviser	85.0%	11	+3.4%
Bank	1.6%	2	-26.1%
Non-US	0.5%	1	0.0%
Adviser	0.0%	0	—
Broker-dealer	0.0%	0	—
Unknown	12.9%	5	-14.2%

Style	Share	Filers	Change
Systematic-like	10.5%	4	-0.1%
Concentrated	6.9%	2	+3.9%
Diversified active	82.5%	13	-0.2%
Index-like	0.0%	0	—
Not measured	0.0%	0	—
Unknown	0.0%	0	—

Turnover	Share	Filers	Change
Low turnover	1.7%	1	0.0%
Medium turnover	12.9%	9	-4.1%
High turnover	80.8%	8	+0.5%
Unknown	4.5%	1	+6.1%
Not measured	0.0%	0	—

Holding horizon	Share	Filers	Change
Short horizon	79.9%	9	+0.9%
Long horizon	4.9%	5	-10.1%
Medium horizon	0.0%	0	—
Unknown	15.2%	5	-0.1%
Not measured	0.0%	0	—

13F book size	Share	Filers	Change
Under $1B	58.8%	6	-1.0%
$1B to $10B	31.8%	7	+3.3%
$10B to $100B	7.7%	3	-3.6%
$100B or more	1.7%	3	0.0%
Not measured	0.0%	0	—

Client base	Share	Filers	Change
Pooled investment vehicles	76.7%	8	+3.8%
Registered funds and BDCs	8.3%	3	0.0%
Unknown	15.0%	8	-15.2%

Private funds	Share	Filers	Change
Hedge funds	82.1%	9	+3.5%
Other private funds	1.7%	1	0.0%
No private funds	1.2%	1	0.0%
Private funds, type not stated	0.0%	0	—
Unknown	15.0%	8	-15.2%

Location	Share	Filers	Change	New	Exited
United States	88.5%	14	+3.6%	0	0
Outside the US	11.5%	5	-20.4%	0	0

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

19 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

0.000% of filers hold it in their top 10

Mar 31, 2026: 0

Holders above 5%

median weight 0.001%

Mar 31, 2026: 0

Crowding

—

shares outstanding is an issuer-wide count, not one listing's

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

shares outstanding is an issuer-wide count, not one listing's

Top 10 holders

90.3%

of 13F shares, Herfindahl 0.250

Active holders

+0.1%

like-for-like share change of active filers

5% stakes on record

0 13D, 0 13G

How long holders have held it value-weighted 6.8 quarters

Under 1 year 4.85% 1 to 3 years 95.1% 3 years or more 0.000% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Shared Holders

Companies EURKR's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	BKHA Black Hawk Acquisition Corp	4	0.730
2	BAYA Bayview Acquisition Corp	3	0.707
3	APAC StoneBridge Acquisition II Corp	5	0.615
4	FVN Future Vision II Acquisition Corp.	3	0.463
5	RFAM RF Acquisition Corp III	4	0.453
6	MYX Maywood Acquisition Corp. 2	4	0.453
7	SCII SC II Acquisition Corp.	5	0.445
8	QSEA Quartzsea Acquisition Corp	3	0.433
9	HDRN Hadron Energy, Inc.	3	0.433
10	CEPO Cantor Equity Partners I, Inc.	4	0.422

Shareholder Targets

13F filers that own its peers but not EURKR, quarter ended Jun 30, 2026

Found through its holder-overlap peers: BKHA, BAYA, APAC, FVN, RFAM, MYX, SCII, QSEA, HDRN, CEPO, ARCL, FXAC, CCAQ, BREZ, ALPX, CAES, QUMS, IPFX, XSLL, GSRF. 121 filers in all.

#	Filer	In peers	Of book	Largest peers
1	ARISTEIA CAPITAL, L.L.C. Registered adviser, Diversified active	$110,404,767 15 held	3.80%	XSLL, IPFX, CCAQ
2	GLAZER CAPITAL, LLC Registered adviser, Diversified active	$84,765,016 15 held	2.80%	XSLL, GSRF, SCII
3	Magnetar Financial LLC Registered adviser, Concentrated	$76,741,349 11 held	0.760%	GSRF, BREZ, XSLL
4	WOLVERINE ASSET MANAGEMENT LLC Registered adviser, Diversified active	$70,679,420 17 held	2.86%	XSLL, BREZ, QUMS
5	Linden Advisors LP Registered adviser, Diversified active	$65,763,599 12 held	2.90%	IPFX, SCII, GSRF
6	Karpus Management, Inc. Adviser, Diversified active	$63,927,419 10 held	1.84%	SCII, QSEA, FVN
7	METEORA CAPITAL, LLC Adviser, Diversified active	$61,805,789 14 held	5.64%	CEPO, GSRF, CAES
8	LMR Partners LLP Exempt adviser, Diversified active	$52,047,452 8 held	0.460%	IPFX, GSRF, CAES
9	Shaolin Capital Management LLC Registered adviser, Diversified active	$43,539,182 18 held	4.93%	GSRF, SCII, XSLL
10	WHITEBOX ADVISORS LLC Registered adviser, Diversified active	$40,627,862 15 held	2.05%	MYX, ARCL, CCAQ

Fund Ownership of EURKR by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0 shares.

Fund type	Shares	Funds
Index funds	0	0
Index ETFs	0	0
Active ETFs	0	0
Active funds	51,000	2
Unclassified	0	0
All registered funds	51,000	2

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.

Holder count: 0

Institutional value: +22.8%

Shares held: +0.1%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Small Harraden Circle Investments, LLC	+74,999	1,964,074
Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC	+43,134	536,116
Large Clear Street Group Inc.	+11,040	190,788

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small K2 PRINCIPAL FUND, L.P.	−100,289	226,185
Large TORONTO DOMINION BANK	−23,158	62,142
Mid TWO SIGMA SECURITIES, LLC	−417	13,420
Mega UBS Group AG	−35	3,378

Filter: New 0 Increased 3 Reduced 4 Sold out 0 Unchanged 12

Holder type: Registered adviser 11 Bank 2 Non-US 1 Unknown 5

Showing 19 of 19

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Harraden Circle Investments, LLC EURKR

$687,426

48.89%

1,964,074

HIGHBRIDGE CAPITAL MANAGEMENT LLC EURKR

$187,641

13.35%

536,116

BOOTHBAY FUND MANAGEMENT, LLC EURKR

$90,460

6.43%

258,457

Clear Street Group Inc. EURKR

$66,776

4.75%

190,788

RIVERNORTH CAPITAL MANAGEMENT, LLC EURKR

$65,250

4.64%

225,000

K2 PRINCIPAL FUND, L.P. EURKR

$56,546

4.02%

226,185

Polar Asset Management Partners Inc. EURKR

$45,688

3.25%

125,000

Cable Car Capital, LP EURKR

$35,000

2.49%

100,000

GABELLI & Co INVESTMENT ADVISERS, INC. EURKR

$31,220

2.22%

89,200

AQR Arbitrage LLC EURKR

$26,378

1.88%

75,366

Yakira Capital Management, Inc. EURKR

$25,533

1.82%

72,951

GABELLI FUNDS LLC EURKR

$25,305

1.80%

72,300

TORONTO DOMINION BANK EURKR

$21,750

1.55%

62,142

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	62,142	$21,750	100.0%	Defined

D. E. Shaw & Co., Inc. EURKR

$15,750

1.12%

45,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	45,000	$15,750	100.0%	Defined

Bulldog Investors, LLP EURKR

$12,801

0.91%

51,000

BNP PARIBAS ARBITRAGE, SA EURKR

$8,286

0.59%

22,702

TWO SIGMA SECURITIES, LLC EURKR

$3,368

0.24%

13,420

UBS Group AG EURKR

$848

0.06%

3,378

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	3,378	$848	100.0%	Defined

Mint Tower Capital Management B.V. EURKR

$23

0.00%

64,777

Key facts CIK 2000410 CUSIP G32168109