WSTN · Westin Acquisition Corp · Holdings

$10.21 +0.00 (+0.00%) At close · Oct 20

Market Cap

$82.24M

8.05M

Volume · Oct 20 2056 Avg daily vol (3M) 39.5K

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 WSTN: 13F, 13D and 13G, insiders and funds →

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.

Quarter:

Holders: 27

Total Value: $53,783,141

Total Shares: 5,330,342

Institutional Ownership Trend

3 quarters

Holder Concentration

Across 27 13F filers · Δ vs Mar 31, 2026

Top Holder

26.0%

−1.4 pts

Top 5

46.1%

−3.1 pts

Top 10

67.5%

−4.1 pts

HHI

950

Broadly held−95

Who Holds WSTN

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: 27 filers, like-for-like change +5.4%; actively managed books +5.0%.

Holder type	Share	Filers	Change	New
Registered adviser	58.7%	18	+11.2%	2
Adviser	30.1%	2	-0.1%	0
Bank	0.1%	1	-66.9%	0
Insurer	2.2%	1	0.0%	0
Unknown	9.0%	5	-6.9%	1

Style	Share	Filers	Change	New
Index-like	0.4%	1	new	1
Systematic-like	9.4%	3	+0.7%	0
Concentrated	4.7%	3	-7.9%	0
Diversified active	85.6%	20	+6.3%	2

Turnover	Share	Filers	Change	New
Low turnover	2.9%	2	new	2
Medium turnover	49.4%	9	+5.6%	1
High turnover	45.1%	15	+0.1%	0
Unknown	2.5%	1	-16.6%	0

Holding horizon	Share	Filers	Change	New
Short horizon	38.8%	13	-2.5%	0
Medium horizon	5.7%	3	+7.1%	1
Long horizon	31.6%	4	+8.4%	1
Unknown	23.9%	7	+15.8%	1

13F book size	Share	Filers	Change	New
Under $1B	18.2%	6	+16.7%	1
$1B to $10B	70.2%	15	+0.8%	1
$10B to $100B	6.9%	3	+40.8%	1
$100B or more	4.7%	3	-1.1%	0

Client base	Share	Filers	Change	New
Pooled investment vehicles	46.3%	15	+7.9%	1
Registered funds and BDCs	12.4%	3	+25.5%	1
Unknown	41.3%	9	-1.9%	1

Private funds	Share	Filers	Change	New
Hedge funds	49.8%	15	+7.3%	1
Other private funds	4.6%	2	+118.7%	1
No private funds	4.2%	1	0.0%	0
Unknown	41.3%	9	-1.9%	1

Location	Share	Filers	Change	New	Exited
United States	95.3%	25	+5.8%	3	0
Outside the US	4.7%	2	-2.3%	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

27 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 0.096%

Mar 31, 2026: 0

Crowding

42.7%

of shares outstanding, 94th percentile

Mar 31, 2026: 40.6%

Private-fund advisers

36.0%

of shares outstanding

Institutional ownership

66.2%

148.5% of the estimated free float above 100%: filers can report lent or client shares more than once

Top 10 holders

67.5%

of 13F shares, Herfindahl 0.095

Active holders

+5.0%

like-for-like share change of active filers

5% stakes on record

1 13D, 2 13G (1 institutional, 1 passive, 0 exempt)

How long holders have held it value-weighted 2.1 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

$9.96

estimated per share

Mar 31, 2026: $9.96

Quarter-end price

$10.09

implied by 13F values

Estimated gain or loss

+1.3%

price against the estimated cost

Estimated at a loss

0.000%

of costed 13F value

Estimated cost covers 61.9% 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 WSTN's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	TRAD APEX Tech Acquisition Inc.	10	0.700
2	WPAC White Pearl Acquisition Corp.	10	0.680
3	AIIA AI Infrastructure Acquisition Corp.	11	0.677
4	XFLH XFLH Capital Corp	9	0.612
5	GLED GalaxyEdge Acquisition Corp	9	0.596
6	QLEP Quantum Leap Acquisition Corp	11	0.580
7	SOUL Soulpower Acquisition Corp.	11	0.561
8	VECA Vernal Capital Acquisition Corp.	7	0.560
9	COPL Copley Acquisition Corp	9	0.554
10	PECE Peace Acquisition Corp.	5	0.546

Shareholder Targets

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

Found through its holder-overlap peers: TRAD, WPAC, AIIA, XFLH, GLED, QLEP, SOUL, VECA, COPL, PECE, QRED, YCY, VNME, JACS, SAGU, BEBE, MCAH, CHAR, ACGC, IPEX. 77 filers in all.

#	Filer	In peers	Of book	Largest peers
1	AQR Arbitrage LLC Registered adviser, Diversified active	$110,862,959 18 held	2.09%	JACS, SOUL, BEBE
2	Magnetar Financial LLC Registered adviser, Concentrated	$104,099,571 12 held	1.07%	VNME, SOUL, ACGC
3	Linden Advisors LP Registered adviser, Diversified active	$73,067,524 14 held	3.48%	JACS, IPEX, QLEP
4	First Trust Capital Management L.P. Registered adviser, Diversified active	$46,340,558 7 held	4.33%	VNME, SOUL, CHAR
5	METEORA CAPITAL, LLC Adviser, Diversified active	$44,167,278 11 held	4.33%	VNME, ACGC, JACS
6	TENOR CAPITAL MANAGEMENT Co., L.P. Registered adviser, Diversified active	$40,125,250 6 held	2.66%	SOUL, COPL, JACS
7	Decagon Asset Management LLP Unknown, Concentrated	$39,211,768 6 held	8.42%	QLEP, GLED, QRED
8	BNP PARIBAS ARBITRAGE, SA Non-US, Diversified active	$32,874,600 18 held	0.020%	BEBE, ACGC, QRED
9	MILLENNIUM MANAGEMENT LLC Registered adviser, Systematic-like	$28,969,865 5 held	0.020%	QLEP, BEBE, SOUL
10	Lineage Point Capital LP Unknown, Diversified active	$26,849,343 8 held	7.03%	BEBE, ACGC, QLEP

Fund Ownership of WSTN by Fund Type

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

Index funds and index ETFs hold 0.00% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.00%	0.00 pp	0	0
Index ETFs	0.00%	0.00 pp	0	0
Active ETFs	0.00%	0.00 pp	0	0
Active funds	1.30%	+0.06 pp	105,061	2
Unclassified	0.00%	0.00 pp	0	0
All registered funds	1.30%	+0.06 pp	105,061	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: +3

Institutional value: +6.4%

Shares held: +5.4%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Small Logan Stone Capital, LLC	+37,347	102,021
Mid WOLVERINE ASSET MANAGEMENT LLC	+25,212	265,021
Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC	+16,209	161,508
Mega D. E. Shaw & Co., Inc.	+3,395	158,095

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small Shaolin Capital Management LLC	−46,935	253,065
Mid Virtu Financial LLC	−31,889	13,914
Large Clear Street Group Inc.	−27,016	135,445
Mega UBS Group AG	−6,087	3,013
Mid Karpus Management, Inc.	−1,425	1,388,365

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Small GABELLI & Co INVESTMENT ADVISERS, INC.	148,200	$1,495,338
Large GABELLI FUNDS LLC	134,200	$1,354,078
Mid MIZUHO SECURITIES USA LLC	20,000	$201,800

Top Sold-Out Positions

vs Mar 31, 2026

No fully closed positions this quarter.

Filter: New 3 Increased 4 Reduced 5 Sold out 0 Unchanged 15

Holder type: Registered adviser 18 Adviser 2 Bank 1 Insurer 1 Unknown 5

Showing 27 of 27

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Karpus Management, Inc.

$14,008,602

26.05%

1,388,365

RIVERNORTH CAPITAL MANAGEMENT, LLC

$3,027,000

5.63%

300,000

WOLVERINE ASSET MANAGEMENT LLC

$2,674,061

4.97%

265,021

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	265,021	$2,674,061	100.0%	Defined

Shaolin Capital Management LLC

$2,553,425

4.75%

253,065

Polar Asset Management Partners Inc.

$2,522,500

4.69%

250,000

WHITEBOX ADVISORS LLC

$2,522,500

4.69%

250,000

ARISTEIA CAPITAL, L.L.C.

$2,522,500

4.69%

250,000

Westchester Capital Management, LLC

$2,282,356

4.24%

226,200

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	2,009	$20,270	0.9%	Sole
Virtus Investment Advisers, LLC	205,025	$2,068,702	90.6%	Other
Held directly	19,166	$193,384	8.5%	Sole

Crossingbridge Advisors, LLC

$2,169,350

4.03%

215,000

MANGROVE PARTNERS IM, LLC

$2,018,000

3.75%

200,000

HIGHBRIDGE CAPITAL MANAGEMENT LLC

$1,629,615

3.03%

161,508

D. E. Shaw & Co., Inc.

$1,595,178

2.97%

158,095

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.	158,095	$1,595,178	100.0%	Defined

HEIGHTS CAPITAL MANAGEMENT, INC

$1,513,500

2.81%

150,000

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	150,000	$1,513,500	100.0%	Other

GLAZER CAPITAL, LLC

$1,513,439

2.81%

149,994

GABELLI & Co INVESTMENT ADVISERS, INC.

$1,495,338

2.78%

148,200

Clear Street Group Inc.

$1,366,640

2.54%

135,445

GABELLI FUNDS LLC

$1,354,078

2.52%

134,200

BERKLEY W R CORP

$1,201,476

2.23%

119,076

SONA ASSET MANAGEMENT (US) LLC

$1,141,178

2.12%

113,100

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

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	113,100	$1,141,178	100.0%	Other

Logan Stone Capital, LLC

$1,029,391

1.91%

102,021

Radcliffe Capital Management, L.P.

$1,009,000

1.88%

100,000

Hudson Bay Capital Management LP

$1,009,000

1.88%

100,000

TWO SIGMA INVESTMENTS, LP

$914,406

1.70%

90,625

Centiva Capital, LP

$338,015

0.63%

33,500

MIZUHO SECURITIES USA LLC

$201,800

0.38%

20,000

Virtu Financial LLC

$140,392

0.26%

13,914

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

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	13,914	$140,392	100.0%	Defined

UBS Group AG

$30,401

0.06%

3,013

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	3,013	$30,401	100.0%	Defined

Key facts CIK 2076192 CUSIP G9584S106 Visit website Investor relations