JACS · Jackson Acquisition Co II

$10.75

Market Cap

$318.09M

29.59M

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.

Quarter:

Holders: 47

Total Value: $235,081,295

Total Shares: 22,094,108

Institutional Ownership Trend

6 quarters

Holder Concentration

Across 47 13F filers · Δ vs Mar 31, 2026

Top Holder

6.9%

+0.0 pts

Top 5

28.2%

−0.3 pts

Top 10

51.0%

−0.4 pts

HHI

372

Broadly held+5

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: 0

Institutional value: +0.4%

Shares held: -0.1%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC	+745,838	867,662
Mid BERKLEY W R CORP	+497,474	927,836
Mid MIZUHO SECURITIES USA LLC	+190,561	905,335
Small Periscope Capital Inc.	+50,000	375,000
Mid AQR Arbitrage LLC	+5,064	1,167,626

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small METEORA CAPITAL, LLC	−691,632	528,112
Small Bulldog Investors, LLP	−216,731	192,029
Small Shaolin Capital Management LLC	−116,310	133,696
Large GABELLI FUNDS LLC	−25,000	129,900
Small Crossingbridge Advisors, LLC	−15,017	312,381

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Small StoneX Group Inc.	15,017	$159,780
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	12,640	$134,489
Mid Arax Advisory Partners	2,750	$29,260

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large TORONTO DOMINION BANK	400,000	$4,236,000
Small DELTEC ASSET MANAGEMENT LLC	40,000	$423,600
Small CSS LLC/IL	35,424	$375,140

Filter: New 3 Increased 8 Reduced 9 Sold out 3 Unchanged 27

Showing 47 of 47

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Hudson Bay Capital Management LP

$16,178,173

6.88%

1,520,505

GLAZER CAPITAL, LLC

$12,727,376

5.41%

1,196,182

Westchester Capital Management, LLC

$12,621,167

5.37%

1,186,200

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	2,005	$21,333	0.2%	Sole
Virtus Investment Advisers, LLC	1,117,827	$11,893,679	94.2%	Other
Held directly	66,368	$706,155	5.6%	Sole

AQR Arbitrage LLC

$12,423,540

5.28%

1,167,626

Linden Advisors LP

$12,236,000

5.21%

1,150,000

D. E. Shaw & Co., Inc.

$12,113,640

5.15%

1,138,500

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.	1,138,500	$12,113,640	100.0%	Defined

WOLVERINE ASSET MANAGEMENT LLC

$11,152,113

4.74%

1,048,131

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	1,048,131	$11,152,113	100.0%	Defined

Polar Asset Management Partners Inc.

$10,906,000

4.64%

1,025,000

BERKLEY W R CORP

$9,872,175

4.20%

927,836

MIZUHO SECURITIES USA LLC

$9,632,764

4.10%

905,335

HIGHBRIDGE CAPITAL MANAGEMENT LLC

$9,231,923

3.93%

867,662

HEIGHTS CAPITAL MANAGEMENT, INC

$7,448,000

3.17%

700,000

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	700,000	$7,448,000	100.0%	Other

Radcliffe Capital Management, L.P.

$7,182,010

3.06%

675,001

Mint Tower Capital Management B.V.

$6,916,000

2.94%

650,000

Magnetar Financial LLC

$6,384,000

2.72%

600,000

TENOR CAPITAL MANAGEMENT Co., L.P.

$6,384,000

2.72%

600,000

First Trust Capital Management L.P.

$5,985,000

2.55%

562,500

METEORA CAPITAL, LLC

$5,619,111

2.39%

528,112

TWO SIGMA INVESTMENTS, LP

$5,052,095

2.15%

474,821

LMR Partners LLP

$4,721,510

2.01%

443,751

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	443,751	$4,721,510	100.0%	Sole

PICTON MAHONEY ASSET MANAGEMENT

$4,256,000

1.81%

400,000

Wealthspring Capital LLC

$4,232,411

1.80%

397,783

Verition Fund Management LLC

$4,000,065

1.70%

375,946

Periscope Capital Inc.

$3,990,000

1.70%

375,000

GOLDMAN SACHS GROUP INC

$3,832,613

1.63%

360,208

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

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	360,208	$3,832,613	100.0%	Defined

RIVERNORTH CAPITAL MANAGEMENT, LLC

$3,823,260

1.63%

359,329

Crossingbridge Advisors, LLC

$3,323,733

1.41%

312,381

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

$3,192,000

1.36%

300,000

MANGROVE PARTNERS IM, LLC

$2,984,200

1.27%

280,470

GABELLI & Co INVESTMENT ADVISERS, INC.

$2,341,864

1.00%

220,100

SONA ASSET MANAGEMENT (US) LLC

$2,196,819

0.93%

206,468

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	206,468	$2,196,819	100.0%	Other

Bulldog Investors, LLP

$2,043,188

0.87%

192,029

WHITEBOX ADVISORS LLC

$1,862,000

0.79%

175,000

Yakira Capital Management, Inc.

$1,569,836

0.67%

147,541

Shaolin Capital Management LLC

$1,422,525

0.61%

133,696

GABELLI FUNDS LLC

$1,382,136

0.59%

129,900

O'Connor Alternative Investments LLC

$1,064,000

0.45%

100,000

BNP PARIBAS ARBITRAGE, SA

$534,436

0.23%

50,229

JPMORGAN CHASE & CO

$532,000

0.23%

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	$532,000	100.0%	Defined

READYSTATE ASSET MANAGEMENT LP

$532,000

0.23%

50,000

Schonfeld Strategic Advisors LLC

$353,875

0.15%

33,259

HGC Investment Management Inc.

$266,000

0.11%

25,000

StoneX Group Inc.

$159,780

0.07%

15,017

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

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	15,017	$159,780	100.0%	Defined

ABC ARBITRAGE SA

$159,600

0.07%

15,000

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

Manager	Shares	Value (USD)	% of position	Discretion
ABC ARBITRAGE ASSET MANAGEMENT	15,000	$159,600	100.0%	Other

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$134,489

0.06%

12,640

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

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	12,640	$134,489	100.0%	Other

Clear Street Group Inc.

$76,608

0.03%

7,200

Arax Advisory Partners

$29,260

0.01%

2,750

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	400,000	$4,236,000	100.0%	Defined

Key facts CIK 2039058 CUSIP G4992A110 13F (30d) 44 filings 43 filers Visit website