Vault-13

STONEBRIDGE ACQUISITION II C APAC

CL A SHS · Common Stock · CUSIP G85096108

27 institutional holders -1 vs Q1 2026
5,787,1205.8m shares reported held*
$58.7mreported value*
0 new 3 added 6 reduced 1 sold out net bought ≈ $5.0m (+496.1k 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. Implied quarter-end price ≈ $10.15.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0102030Q4 25: 23Q1 26: 28Q2 26: 2727Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q4 202523
Q1 202628
Q2 202627

Buyers vs sellers

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

Bought or addedCut or sold out
10010Q1 26: 9 bought or addedQ1 26: 6 cut or sold outQ1 26Q2 26: 3 bought or addedQ2 26: 7 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q1 202696
Q2 202637

Biggest buyers

MIZUHO SECURITIES USA LLC Added +542,755+542.8k
Karpus Management, Inc. Added +31,575+31.6k
Clear Street Group Inc. Added +10,795+10.8k

Biggest sellers

Virtu Financial LLC Sold out -33,601-33.6k
GLAZER CAPITAL, LLC Reduced -24,966-25.0k
Shaolin Capital Management LLC Reduced -23,140-23.1k
Warberg Asset Management LLC Reduced -3,800-3.8k
WOLVERINE ASSET MANAGEMENT LLC Reduced -3,150-3.1k
RIVERNORTH CAPITAL MANAGEMENT, LLC Reduced -384-384
MORGAN STANLEY Reduced -5-5

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
Karpus Management, Inc. 13G · institution new · filed 2026-05-14 5.6% new 433.6k≈ $4.4m 2026-05-14
CLEAR STREET LLC 13G · exempt (held before listing) no change · filed 2026-08-14 5.0% no change 308.9k≈ $3.1m 2026-08-14

Fell to 5% or below in the last year: WOLVERINE ASSET MANAGEMENT LLC (3.0%, 2026-10-06), AQR CAPITAL MANAGEMENT LLC (4.8%, 2026-02-11)

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 MIZUHO SECURITIES USA LLC 0.11% of their portfolio NEW YORK, NY 1,094,8101.1m $11.0m $11.0m 0.11% Added +542.8k +542,755
2 RIVERNORTH CAPITAL MANAGEMENT, LLC 0.24% of their portfolio WEST PALM BEACH, FL 494,133494.1k $5.0m $5.0m 0.24% Reduced -384 -384
3 Karpus Management, Inc. 0.14% of their portfolio Pittsford, NY 465,125465.1k $4.7m $4.7m 0.14% Added +31.6k +31,575
4 WOLVERINE ASSET MANAGEMENT LLC 0.05% of their portfolio CHICAGO, IL 397,863397.9k $4.0m $4.0m 0.05% Reduced -3.1k -3,150
5 GLAZER CAPITAL, LLC 0.09% of their portfolio New York, NY 360,100360.1k $3.7m $3.7m 0.09% Reduced -25.0k -24,966
6 Clear Street Group Inc. 0.01% of their portfolio NEW YORK, NY 318,923318.9k $3.2m $3.2m 0.01% Added +10.8k +10,795
7 AQR Arbitrage LLC 0.04% of their portfolio Greenwich, CT 286,849286.8k $2.9m $2.9m 0.04% Unchanged
8 Logan Stone Capital, LLC 0.54% of their portfolio CHICAGO, IL 252,000252.0k $2.6m $2.6m 0.54% Unchanged
9 MANGROVE PARTNERS IM, LLC 0.15% of their portfolio Greenwich, CT 225,000225.0k $2.3m $2.3m 0.15% Unchanged
10 ARISTEIA CAPITAL, L.L.C. 0.03% of their portfolio GREENWICH, CT 200,000200.0k $2.0m $2.0m 0.03% Unchanged
11 Verition Fund Management LLC 0.01% of their portfolio GREENWICH, CT 200,000200.0k $2.0m $2.0m 0.01% Unchanged
12 Shaolin Capital Management LLC 0.10% of their portfolio Miami, FL 176,860176.9k $1.8m $1.8m 0.10% Reduced -23.1k -23,140
13 Radcliffe Capital Management, L.P. 0.12% of their portfolio BALA CYNWYD, PA 160,000160.0k $1.6m $1.6m 0.12% Unchanged
14 Polar Asset Management Partners Inc. 0.03% of their portfolio TORONTO, A6 150,000150.0k $1.5m $1.5m 0.03% Unchanged
15 Cable Car Capital, LP 0.07% of their portfolio SAN FRANCISCO, CA 150,000150.0k $1.5m $1.5m 0.07% Unchanged
16 BOOTHBAY FUND MANAGEMENT, LLC 0.03% of their portfolio NEW YORK, NY 137,500137.5k $1.4m $1.4m 0.03% Unchanged
17 SONA ASSET MANAGEMENT (US) LLC 0.04% of their portfolio NEW YORK, NY 117,096117.1k $1.2m $1.2m 0.04% Unchanged
18 BERKLEY W R CORP 0.06% of their portfolio Greenwich, CT 113,358113.4k $1.2m $1.2m 0.06% Unchanged
19 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 90,62590.6k $921.7k $921.7k 0.00% Unchanged
20 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 90,15090.2k $916.8k $916.8k 0.00% Unchanged
21 Westchester Capital Management, LLC 0.04% of their portfolio VALHALLA, NY 80,00080.0k $813.6k $813.6k 0.04% Unchanged
22 Crossingbridge Advisors, LLC 0.13% of their portfolio PLEASANTVILLE, NY 75,00075.0k $762.8k $762.8k 0.13% Unchanged
23 RLH Capital LLC 0.28% of their portfolio Great Neck, NY 57,50057.5k $584.8k $584.8k 0.28% Unchanged
24 HEIGHTS CAPITAL MANAGEMENT, INC 0.12% of their portfolio SAN FRANCISCO, CA 50,50050.5k $513.6k $513.6k 0.12% Unchanged
25 Warberg Asset Management LLC 0.07% of their portfolio WINNETKA, IL 23,70023.7k $241.0k $241.0k 0.07% Reduced -3.8k -3,800
26 ABC ARBITRAGE SA 0.02% of their portfolio PARIS, I0 20,00020.0k $203.4k $203.4k 0.02% Unchanged
27 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 2828 $285 $285 0.00% Reduced -5 -5