Eureka Acquisition EURK Institutional Ownership

NASDAQ EURK

$11.55 0.00 (-0.01%)

As of: Sep 9, 2026 · 1:24 PM EDT

Institutions by Trading Activity

14 Institutions

Increased 1 7.1%

Unchanged 7 50.0%

Reduced 6 42.9%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

30.64%

▼-24.26 pp QoQ

Shares Held by Institutions

1.47Mn

of 4.80Mn outstanding

▼-14.17% QoQ

Shares Outstanding

4.80Mn

3.33Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▼-8 vs prior quarter

Net Shares Added (QoQ)

-242.59K

distributed since last quarter

Value of Holdings

$16.97Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Eureka Acquisition Corp (NASDAQ:EURK) showed up in the 13F filings of 14 institutional investors as of June 2026.

They owned 30.6% of outstanding stock in June 2026, down from 54.9% the prior quarter.
They decreased total shares held in Eureka Acquisition by -14.17% from the prior quarter, while the number of investors in EURK decreased 46.15% year over year.
Activity in EURK broke down as 1 buyers, 6 sellers, and 7 unchanged among 14 total holders.
In total, institutional investors held 1.47Mn shares in Eureka Acquisition as of June 2026, down by 242.59K shares quarter on quarter, and down 3.15Mn shares year over year.
Berkley W R Corp holds the largest position in EURK at 315.49K shares as of June 30, 2026, or 6.58% of shares outstanding.
Top purchasers of EURK stock for the quarter ending June 2026 included AQR Arbitrage LLC (100).
The largest sales of EURK for the quarter ending June 2026 came from RLH Capital LLC (140.0K), Clear Street Group Inc. (57.04K), Crossingbridge Advisors, LLC (42.92K), Warberg Asset Management LLC (2.73K), UBS Group AG (4).
Business Quant data shows the 10 biggest positions in Eureka Acquisition as of June 2026 are held by Berkley W R Corp (315.49K), MIZUHO SECURITIES USA LLC (300.46K), AQR Arbitrage LLC (171.42K), RLH Capital LLC (155.4K), Quarry LP (155.4K), Cable Car Capital, LP (100.0K), Crossingbridge Advisors, LLC (73.77K), Yakira Capital Management, Inc. (72.95K), Westchester Capital Management, LLC (50.0K), Clear Street Group Inc. (43.63K).

Form 13F Holdings

14 Institutional Holders

Report period 30 Jun, 2026

Total shares held 1.47Mn

Of outstanding 30.64%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Berkley W R Corp	0000011544	315,488	6.58%	0	0.00%	$3.61Mn
2	MIZUHO SECURITIES USA LLC	0000812291	300,455	6.26%	0	0.00%	$3.31Mn
3	AQR Arbitrage LLC	0001167456	171,422	3.57%	▲100	+0.06%	$2.13Mn
4	RLH Capital LLC	0002008031	155,400	3.24%	▼140,000	-47.39%	$1.77Mn
4	Quarry LP	0001965207	155,400	3.24%	0	0.00%	$1.77Mn
5	Cable Car Capital, LP	0001699575	100,000	2.08%	0	0.00%	$1.20Mn
6	Crossingbridge Advisors, LLC	0001770024	73,768	1.54%	▼42,921	-36.78%	$842.43K
7	Yakira Capital Management, Inc.	0001584639	72,951	1.52%	0	0.00%	$834.56K
8	Westchester Capital Management, LLC	0001512805	50,000	1.04%	0	0.00%	$571.00K
9	Clear Street Group Inc.	0001881567	43,632	0.91%	▼57,035	-56.66%	$523.15K
10	Goldman Sachs Group Inc	0000886982	20,858	0.43%	0	0.00%	$250.09K
11	Warberg Asset Management LLC	0001597506	10,057	0.21%	▼2,726	-21.33%	$115.05K
12	UBS Group AG	0001610520	85	0.00%	▼4	-4.49%	$1.02K
13	Morgan Stanley	0000895421	49	0.00%	▼3	-5.77%	$588