Vault-13

RIBBON ACQUISITION CORP RIBB

ORD SHS CL A · Common Stock · CUSIP G7552W109

20 institutional holders +1 vs Q1 2026
2,755,4322.8m shares reported held*
55.0% of all shares outstanding*
$29.4mreported value*
1 new 4 added 4 reduced 0 sold out net sold ≈ $232.3k (-21.6k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 5.0m as of 2026-08-14, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $10.68.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0102030Q1 25: 18Q2 25: 23Q3 25: 25Q4 25: 24Q1 26: 19Q2 26: 2020Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q1 202518
Q2 202523
Q3 202525
Q4 202524
Q1 202619
Q2 202620

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
20020Q2 25: 12 bought or addedQ2 25: 2 cut or sold outQ2 25Q3 25: 5 bought or addedQ3 25: 7 cut or sold outQ3 25Q4 25: 4 bought or addedQ4 25: 9 cut or sold outQ4 25Q1 26: 6 bought or addedQ1 26: 12 cut or sold outQ1 26Q2 26: 5 bought or addedQ2 26: 4 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q2 2025122
Q3 202557
Q4 202549
Q1 2026612
Q2 202654

Biggest buyers

MIZUHO SECURITIES USA LLC New +15,000+15.0k
Clear Street Group Inc. Added +5,080+5.1k
TORONTO DOMINION BANK Added +2,340+2.3k
UBS Group AG Added +800+800
BERKLEY W R CORP Added +3+3

Biggest sellers

GABELLI FUNDS LLC Reduced -25,000-25.0k
Shaolin Capital Management LLC Reduced -15,000-15.0k
WOLVERINE ASSET MANAGEMENT LLC Reduced -4,807-4.8k
MORGAN STANLEY Reduced -3-3

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
BERKLEY W R CORP 13G · institution filed 2026-05-08 7.9% 297.6k≈ $3.2m 2026-05-08
Westchester Capital Management, LLC 13G · institution new · filed 2026-05-15 7.8% new 372.4k≈ $4.0m 2026-05-15
RIVERNORTH CAPITAL MANAGEMENT, LLC 13G · institution new · filed 2026-02-17 7.7% new 400.0k≈ $4.3m 2026-02-17

Fell to 5% or below in the last year: WOLVERINE ASSET MANAGEMENT LLC (0.0%, 2026-10-05), Polar Asset Management Partners Inc. (2.1%, 2026-05-15), MIZUHO FINANCIAL GROUP INC (0.2%, 2026-02-12)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 RIVERNORTH CAPITAL MANAGEMENT, LLC 0.21% of their portfolio WEST PALM BEACH, FL 400,000400.0k $4.3m $4.3m 0.21% Unchanged
2 Westchester Capital Management, LLC 0.20% of their portfolio VALHALLA, NY 375,734375.7k $3.9m $3.9m 0.20% Unchanged
3 BERKLEY W R CORP 0.15% of their portfolio Greenwich, CT 297,592297.6k $3.1m $3.1m 0.15% Added +3 +3
4 WOLVERINE ASSET MANAGEMENT LLC 0.04% of their portfolio CHICAGO, IL 295,983296.0k $3.2m $3.2m 0.04% Reduced -4.8k -4,807
5 Hudson Bay Capital Management LP 0.01% of their portfolio STAMFORD, CT 250,000250.0k $2.7m $2.7m 0.01% Unchanged
6 Karpus Management, Inc. 0.07% of their portfolio Pittsford, NY 218,287218.3k $2.3m $2.3m 0.07% Unchanged
7 AQR Arbitrage LLC 0.03% of their portfolio Greenwich, CT 185,283185.3k $2.0m $2.0m 0.03% Unchanged
8 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 150,000150.0k $1.6m $1.6m 0.00% Unchanged
9 GABELLI & Co INVESTMENT ADVISERS, INC. 0.22% of their portfolio Rye, NY 139,200139.2k $1.5m $1.5m 0.22% Unchanged
10 Shaolin Capital Management LLC 0.06% of their portfolio Miami, FL 105,000105.0k $1.1m $1.1m 0.06% Reduced -15.0k -15,000
11 GABELLI FUNDS LLC 0.01% of their portfolio Rye, NY 80,79780.8k $869.4k $869.4k 0.01% Reduced -25.0k -25,000
12 Clear Street Group Inc. 0.00% of their portfolio NEW YORK, NY 68,47668.5k $736.8k $736.8k 0.00% Added +5.1k +5,080
13 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 60,10560.1k $646.7k $646.7k 0.00% Unchanged
14 Centiva Capital, LP 0.01% of their portfolio New York, NY 40,00040.0k $430.4k $430.4k 0.01% Unchanged
15 Dakota Wealth Management 0.01% of their portfolio PALM BEACH GARDENS, FL 29,33329.3k $315.6k $315.6k 0.01% Unchanged
16 Warberg Asset Management LLC 0.07% of their portfolio WINNETKA, IL 21,82621.8k $234.8k $234.8k 0.07% Unchanged
17 TORONTO DOMINION BANK 0.00% of their portfolio TORONTO, ONTARIO, A6 20,48320.5k $220.4k $220.4k 0.00% Added +2.3k +2,340
18 MIZUHO SECURITIES USA LLC 0.00% of their portfolio NEW YORK, NY 15,00015.0k $161.4k $161.4k 0.00% New
19 UBS Group AG 0.00% of their portfolio ZURICH, V8 2,2862.3k $24.6k $24.6k 0.00% Added +800 +800
20 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 4747 $506 $506 0.00% Reduced -3 -3