RIBB · Ribbon Acquisition Corp.

$10.90 +0.05 (+0.46%)

Market Cap

$54.45M

5.01M

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: 28

Total Value: $29,653,564

Total Shares: 6,873,669

Institutional Ownership Trend

6 quarters

Holder Concentration

Across 28 13F filers · Δ vs Mar 31, 2026

Top Holder

14.5%

+0.1 pts

Top 5

58.8%

+0.3 pts

Top 10

87.7%

−0.0 pts

HHI

913

Broadly held+1

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: 0

Institutional value: +1.6%

Shares held: -0.5%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC	+36,978	467,103
Large Clear Street Group Inc.	+3,994	357,266
Large TORONTO DOMINION BANK	+2,340	68,093
Mega UBS Group AG	+791	2,756
Mid AQR Arbitrage LLC	+100	370,666

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mid BERKLEY W R CORP	−35,721	297,592
Large GABELLI FUNDS LLC	−25,000	232,552
Small Shaolin Capital Management LLC	−15,000	105,000
Mid WOLVERINE ASSET MANAGEMENT LLC	−4,982	467,017
Small HEIGHTS CAPITAL MANAGEMENT, INC	−2,160	181,555

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)	Open
Mid MIZUHO SECURITIES USA LLC	15,000	$161,400

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)	Open
Mid GLAZER CAPITAL, LLC	11,575	$0

Filter: New 1 Increased 5 Reduced 6 Sold out 1 Unchanged 16

Showing 38 of 38

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

RIVERNORTH CAPITAL MANAGEMENT, LLC

$4,304,000

14.51%

400,000

Westchester Capital Management, LLC

$4,042,896

13.63%

375,734

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	3,317	$35,690	0.9%	Sole
Virtus Investment Advisers, LLC	344,981	$3,711,995	91.8%	Other
Held directly	27,436	$295,211	7.3%	Sole

BERKLEY W R CORP

$3,202,089

10.80%

297,592

WOLVERINE ASSET MANAGEMENT LLC

$3,184,777

10.74%

295,983

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	295,983	$3,184,777	100.0%	Defined

Hudson Bay Capital Management LP

$2,690,000

9.07%

250,000

Karpus Management, Inc.

$2,348,768

7.92%

218,287

AQR Arbitrage LLC

$1,993,645

6.72%

185,283

D. E. Shaw & Co., Inc.

$1,614,000

5.44%

150,000

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.	150,000	$1,614,000	100.0%	Defined

GABELLI & Co INVESTMENT ADVISERS, INC.

$1,497,792

5.05%

139,200

Shaolin Capital Management LLC

$1,129,800

3.81%

105,000

GABELLI FUNDS LLC

$869,375

2.93%

80,797

Clear Street Group Inc.

$736,801

2.48%

68,476

GOLDMAN SACHS GROUP INC

$646,729

2.18%

60,105

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	60,105	$646,729	100.0%	Defined

Centiva Capital, LP

$430,400

1.45%

40,000

Dakota Wealth Management

$315,623

1.06%

29,333

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

Manager	Shares	Value (USD)	% of position	Discretion
Karpus Management Inc.	29,333	$315,623	100.0%	Defined

Warberg Asset Management LLC

$234,847

0.79%

21,826

TORONTO DOMINION BANK

$220,397

0.74%

20,483

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	20,483	$220,397	100.0%	Defined

MIZUHO SECURITIES USA LLC

$161,400

0.54%

15,000

UBS Group AG

$24,597

0.08%

2,286

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	2,286	$24,597	100.0%	Defined

UBS Group AG RIBBU

$5,123

0.02%

470

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	470	$5,123	100.0%	Defined

MORGAN STANLEY

$505

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	47	$505	100.0%	Defined

BOOTHBAY FUND MANAGEMENT, LLC RIBBR

—

69,819

TORONTO DOMINION BANK RIBBR

—

47,610

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	47,610	$0	—	Defined

GABELLI & Co INVESTMENT ADVISERS, INC. RIBBR

—

177,000

RIVERNORTH CAPITAL MANAGEMENT, LLC RIBBR

—

400,000

HGC Investment Management Inc. RIBBR

—

250,000

HIGHBRIDGE CAPITAL MANAGEMENT LLC RIBBR

—

467,103

WHITEBOX ADVISORS LLC RIBBR

—

125,000

Polar Asset Management Partners Inc. RIBBR

—

400,000

GABELLI FUNDS LLC RIBBR

—

151,755

AQR Arbitrage LLC RIBBR

—

185,383

WOLVERINE ASSET MANAGEMENT LLC RIBBR

—

171,034

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	171,034	$0	—	Defined

BNP PARIBAS ARBITRAGE, SA RIBBR

—

60,105

Hudson Bay Capital Management LP RIBBR

—

245,998

HEIGHTS CAPITAL MANAGEMENT, INC RIBBR

—

181,555

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	181,555	$0	—	Other

Clear Street Group Inc. RIBBR

—

288,790

Centiva Capital, LP RIBBR

—

40,000

Harraden Circle Investments, LLC RIBBR

—

856,615

Key facts CIK 2035016 CUSIP G7552W109 13F (30d) 30 filings 27 filers Visit website Investor relations