ARCLU · ARC Group Acquisition I Corp. · Holdings

$10.25 At close · Oct 26

Market Cap

$58.64M

5.86M

Volume · Oct 26 100 Avg daily vol (23 sessions) 1990

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 ARCLU: 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: 11

Total Value: $21,913,302

Total Shares: 2,146,259

Holder Concentration

Across 11 13F filers

Top Holder

26.8%

of institutional value

Top 5

85.3%

of institutional value

Top 10

99.5%

of institutional value

HHI

1,738

Moderately concentrated

Who Holds ARCLU

Last 1 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: 11 filers, like-for-like change —.

Holder type	Share	Filers	Change	New
Registered adviser	72.0%	5	new	5
Adviser	8.0%	1	new	1
Bank	4.0%	2	new	2
Unknown	16.1%	3	new	3

Style	Share	Filers	Change	New	Exited
Concentrated	23.5%	2	new	2	0
Diversified active	76.5%	9	new	9	0

Turnover	Share	Filers	Change	New
Low turnover	17.1%	3	new	3
Medium turnover	45.1%	4	new	4
High turnover	27.8%	2	new	2
Unknown	10.0%	2	new	2

Holding horizon	Share	Filers	Change	New
Short horizon	37.9%	4	new	4
Medium horizon	21.4%	1	new	1
Long horizon	33.5%	5	new	5
Unknown	7.2%	1	new	1

13F book size	Share	Filers	Change	New
Under $1B	16.2%	3	new	3
$1B to $10B	61.2%	3	new	3
$10B to $100B	22.1%	4	new	4
$100B or more	0.5%	1	new	1

Client base	Share	Filers	Change	New
Pooled investment vehicles	55.4%	3	new	3
Registered funds and BDCs	16.6%	2	new	2
Unknown	28.0%	6	new	6

Private funds	Share	Filers	Change	New
Hedge funds	55.4%	3	new	3
Other private funds	16.6%	2	new	2
Unknown	28.0%	6	new	6

Location	Share	Filers	Change	New	Exited
United States	95.5%	9	new	9	0
Outside the US	4.5%	2	new	2	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

11 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

Holders above 5%

median weight 0.048%

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

99.5%

of 13F shares, Herfindahl 0.174

Active holders

—

like-for-like share change of active filers

5% stakes on record

0 13D, 0 13G

How long holders have held it value-weighted 1.0 quarters

Under 1 year 100.0% 1 to 3 years 0.000% 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).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$10.13

estimated per share

Quarter-end price

$10.21

implied by 13F values

Estimated gain or loss

+0.8%

price against the estimated cost

Estimated at a loss

0.000%

of costed 13F value

Estimated cost covers 100.0% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

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

#	Company	Shared holders	Similarity
1	OBA Oxley Bridge Acquisition Ltd	5	0.589
2	BREZ Breeze Acquisition Corp. II	5	0.589
3	OHAC Oceanhawk Acquisition Corp.	5	0.556
4	PLUN Plutonian Acquisition Corp. II	5	0.527
5	QUMS Quantumsphere Acquisition Corp	3	0.500
6	FSHP Flag Ship Acquisition Corp	3	0.500
7	SOUL Soulpower Acquisition Corp.	8	0.471
8	XRPNU Armada Acquisition Corp. II	5	0.462
9	FVN Future Vision II Acquisition Corp.	3	0.447
10	MYX Maywood Acquisition Corp. 2	3	0.447

Shareholder Targets

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

Found through its holder-overlap peers: OBA, BREZ, OHAC, PLUN, QUMS, FSHP, SOUL, XRPNU, FVN, MYX, EURK, MCAH, APXT, TRAD, ANSC, VNME, WSTN, TACH, PECE, DRDB. 105 filers in all.

#	Filer	In peers	Of book	Largest peers
1	Westchester Capital Management, LLC Registered adviser, Diversified active	$113,445,445 17 held	6.35%	ANSC, SOUL, APXT
2	TENOR CAPITAL MANAGEMENT Co., L.P. Registered adviser, Diversified active	$90,942,280 7 held	6.02%	XRPNU, TACH, SOUL
3	Linden Advisors LP Registered adviser, Diversified active	$66,220,995 13 held	3.16%	TACH, XRPNU, APXT
4	Arrington Capital Management, LLC Registered adviser, Concentrated	$60,513,320 1 held	67.5%	XRPNU
5	METEORA CAPITAL, LLC Adviser, Diversified active	$56,388,472 9 held	5.45%	XRPNU, VNME, APXT
6	Shaolin Capital Management LLC Registered adviser, Diversified active	$53,350,914 18 held	6.83%	OHAC, TACH, QUMS
7	First Trust Capital Management L.P. Registered adviser, Diversified active	$49,657,794 7 held	4.64%	VNME, SOUL, ANSC
8	LMR Partners LLP Exempt adviser, Diversified active	$47,005,757 7 held	0.450%	TACH, DRDB, XRPNU
9	PICTON MAHONEY ASSET MANAGEMENT Non-US, Diversified active	$41,521,975 8 held	0.390%	TACH, OBA, SOUL
10	Alberta Investment Management Corp Non-US, Concentrated	$40,568,985 5 held	0.260%	ANSC, APXT, SOUL

Holder type: Registered adviser 5 Adviser 1 Bank 2 Unknown 3

Showing 11 of 11

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

MANGROVE PARTNERS IM, LLC ARCLU

$5,870,750

26.79%

575,000

Magnetar Financial LLC ARCLU

$4,696,600

21.43%

460,000

Calamos Advisors LLC ARCLU

$3,522,450

16.07%

345,000

StoneX Group Inc. ARCLU

$2,848,906

13.00%

279,031

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

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	279,031	$2,848,906	100.0%	Defined

Lineage Point Capital LP ARCLU

$1,751,015

7.99%

171,500

GABELLI & Co INVESTMENT ADVISERS, INC. ARCLU

$1,568,256

7.16%

153,600

TORONTO DOMINION BANK ARCLU

$765,627

3.49%

74,988

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	74,988	$765,627	100.0%	Defined

Clear Street Group Inc. ARCLU

$446,074

2.04%

43,690

K2 PRINCIPAL FUND, L.P. ARCLU

$229,725

1.05%

22,500

GABELLI FUNDS LLC ARCLU

$111,799

0.51%

10,950

JPMORGAN CHASE & CO ARCLU

$102,100

0.47%

10,000

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

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	10,000	$102,100	100.0%	Defined

Key facts CIK 2073515 CUSIP G24498118