APXTU · Apex Treasury Corp · Holdings

$10.29

Market Cap

$466.03M

45.96M

Volume · Oct 27 525 Avg daily vol (11 sessions) 1233

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 APXTU: 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: 17

Total Value: $33,451,097

Total Shares: 3,247,680

Institutional Ownership Trend

3 quarters

Holder Concentration

Across 17 13F filers · Δ vs Mar 31, 2026

Top Holder

23.1%

−2.5 pts

Top 5

74.2%

+3.2 pts

Top 10

95.1%

+2.0 pts

HHI

1,339

Broadly held−10

Who Holds APXTU

Last 3 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: 17 filers, like-for-like change -24.6%; actively managed books -24.6%.

Holder type	Share	Filers	Change	Exited
Registered adviser	17.8%	5	0.0%	0
Exempt adviser	23.1%	1	0.0%	0
Adviser	1.4%	1	-4.7%	0
Bank	18.1%	4	+35.1%	0
Benefit plan	13.9%	1	0.0%	0
Non-US	12.3%	1	-73.3%	1
Unknown	13.4%	4	-20.0%	2

Style	Share	Filers	Change	Exited
Concentrated	0.6%	1	-98.2%	1
Diversified active	99.4%	16	+1.2%	2
Systematic-like	0.0%	0	—	0

Turnover	Share	Filers	Change	Exited
Low turnover	1.5%	1	0.0%	0
Medium turnover	46.7%	8	-38.9%	2
High turnover	51.1%	7	-5.6%	1
Unknown	0.6%	1	+22.5%	0

Holding horizon	Share	Filers	Change	Exited
Short horizon	27.8%	5	-9.6%	1
Medium horizon	23.1%	1	0.0%	0
Long horizon	43.0%	8	+12.0%	0
Unknown	6.1%	3	-84.9%	2

13F book size	Share	Filers	Change	Exited
Under $1B	12.3%	1	-22.3%	2
$1B to $10B	16.2%	4	-0.4%	0
$10B to $100B	59.4%	7	-32.8%	1
$100B or more	12.1%	5	+0.6%	0

Client base	Share	Filers	Change	Exited
Pooled investment vehicles	13.2%	4	0.0%	0
Registered funds and BDCs	4.6%	1	0.0%	0
Other investment advisers	0.0%	0	—	0
Unknown	82.2%	12	-28.4%	3

Private funds	Share	Filers	Change	Exited
Hedge funds	13.2%	4	0.0%	0
Private funds, type not stated	23.1%	1	0.0%	0
No private funds	4.6%	1	0.0%	0
Private equity funds	0.0%	0	—	0
Unknown	59.1%	11	-35.5%	3

Location	Share	Filers	Change	New	Exited
United States	25.7%	11	-1.3%	0	1
Outside the US	74.3%	6	-30.3%	0	2

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

17 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 0.004%

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

95.1%

of 13F shares, Herfindahl 0.134

Active holders

-24.6%

like-for-like share change of active filers

5% stakes on record

0 13D, 0 13G

How long holders have held it value-weighted 2.9 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

$10.09

estimated per share

Mar 31, 2026: $10.08

Quarter-end price

$10.30

implied by 13F values

Estimated gain or loss

+2.1%

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

#	Company	Shared holders	Similarity
1	KOYN CSLM Digital Asset Acquisition Corp III, Ltd	8	0.653
2	XRPNU Armada Acquisition Corp. II	9	0.645
3	POLE Andretti Acquisition Corp. II	10	0.626
4	VNME Vendome Acquisition Corp I	8	0.623
5	WENN WEN Acquisition Corp	7	0.572
6	ORIQ Origin Investment Corp I	7	0.572
7	ANSC Agriculture & Natural Solutions Acquisition Corp	9	0.564
8	DRDB Roman DBDR Acquisition Corp. II	8	0.552
9	SOUL Soulpower Acquisition Corp.	12	0.548
10	OBA Oxley Bridge Acquisition Ltd	6	0.548

Shareholder Targets

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

Found through its holder-overlap peers: KOYN, XRPNU, POLE, VNME, WENN, ORIQ, ANSC, DRDB, SOUL, OBA, BDCI, MEVO, MKLY, CHAR, LAFA, DMAA, QUMS, VECA, IPEX, LPAA. 66 filers in all.

#	Filer	In peers	Of book	Largest peers
1	BERKLEY W R CORP Insurer, Diversified active	$156,857,132 16 held	8.60%	ANSC, DRDB, LPAA
2	Arrington Capital Management, LLC Registered adviser, Concentrated	$60,394,320 1 held	67.4%	XRPNU
3	MMCAP International Inc. SPC Unknown, Diversified active	$46,259,200 5 held	4.47%	LPAA, WENN, OBA
4	GOLDMAN SACHS GROUP INC Holding company, Index-like	$37,950,795 9 held	0.000%	POLE, LPAA, ANSC
5	RiverPark Advisors, LLC Registered adviser, Diversified active	$22,981,263 5 held	11.5%	SOUL, ANSC, LPAA
6	Fort Baker Capital Management LP Registered adviser, Concentrated	$15,755,374 1 held	1.59%	ANSC
7	Ghisallo Capital Management LLC Registered adviser, Diversified active	$15,012,000 4 held	0.360%	ANSC, OBA, WENN
8	Calamos Advisors LLC Registered adviser, Diversified active	$14,954,871 3 held	0.070%	POLE, VNME, LAFA
9	MANGROVE PARTNERS IM, LLC Registered adviser, Diversified active	$11,959,257 4 held	0.810%	VNME, SOUL, ORIQ
10	Cable Car Capital, LP Registered adviser, Concentrated	$8,436,933 6 held	0.390%	MKLY, QUMS, XRPNU

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: -3

Institutional value: -23.1%

Shares held: -24.6%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Large TORONTO DOMINION BANK	+150,000	510,000
Large Clear Street Group Inc.	+3,765	20,533
Mega UBS Group AG	+2,821	2,996
Large HRT FINANCIAL LP	+2,670	102,670

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds	Open
Mid Karpus Management, Inc.	−2,149	44,051
Mega JANE STREET GROUP, LLC	−632	13,482

Top New Positions

vs Mar 31, 2026

No new positions this quarter.

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large Alberta Investment Management Corp	1,100,000	$11,110,000
Small K2 PRINCIPAL FUND, L.P.	100,000	$1,010,000
Small ROBINSON CAPITAL MANAGEMENT, LLC	15,000	$151,500

Filter: New 0 Increased 4 Reduced 2 Sold out 3 Unchanged 11

Holder type: Registered adviser 5 Exempt adviser 1 Adviser 1 Bank 4 Benefit plan 1 Non-US 1 Unknown 4

Showing 17 of 17

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

LMR Partners LLP APXTU

$7,725,000

23.09%

750,000

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

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	750,000	$7,725,000	100.0%	Sole

TORONTO DOMINION BANK APXTU

$5,253,000

15.70%

510,000

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	360,000	$3,708,000	70.6%	Defined
Held directly	150,000	$1,545,000	29.4%	Sole

OMERS ADMINISTRATION Corp APXTU

$4,648,657

13.90%

451,326

HGC Investment Management Inc. APXTU

$4,120,000

12.32%

400,000

Allianz Asset Management GmbH APXTU

$3,090,000

9.24%

300,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Pacific Investment Management Company LLC	300,000	$3,090,000	100.0%	Defined

READYSTATE ASSET MANAGEMENT LP APXTU

$3,090,000

9.24%

300,000

Westchester Capital Management, LLC APXTU

$1,544,998

4.62%

150,000

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

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	1,353	$13,935	0.9%	Sole
Virtus Investment Advisers, LLC	136,271	$1,403,591	90.8%	Other
Held directly	12,376	$127,472	8.3%	Sole

HRT FINANCIAL LP APXTU

$1,057,501

3.16%

102,670

Walleye Capital LLC APXTU

$772,500

2.31%

75,000

JPMORGAN CHASE & CO APXTU

$515,000

1.54%

50,000

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	50,000	$515,000	100.0%	Defined

Karpus Management, Inc. APXTU

$453,725

1.36%

44,051

GLAZER CAPITAL, LLC APXTU

$337,355

1.01%

32,753

CITIGROUP INC APXTU

$257,500

0.77%

25,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	25,000	$257,500	100.0%	Defined

Clear Street Group Inc. APXTU

$211,489

0.63%

20,533

Schonfeld Strategic Advisors LLC APXTU

$204,650

0.61%

19,869

JANE STREET GROUP, LLC APXTU

$138,864

0.42%

13,482

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	13,478	$138,823	100.0%	Defined
Jane Street Global Trading, LLC	4	$41	0.0%	Defined

UBS Group AG APXTU

$30,858

0.09%

2,996

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	2,996	$30,858	100.0%	Defined

Key facts CIK 2079253 CUSIP G04104108 Visit website