Vault-13

AA MISSION ACQUISITION CORP YCY

ORD SHS CL A · Common Stock · CUSIP G1000S109

39 institutional holders -2 vs Q1 2026
11,463,30111.5m shares reported held*
96.7% of all shares outstanding*
$116.4mreported value*
0 new 6 added 6 reduced 2 sold out net bought ≈ $6.3m (+624.7k 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: 11.9m as of 2026-08-07, 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 ≈ $10.15.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q4 25: 34Q1 26: 41Q2 26: 3939Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q4 202534
Q1 202641
Q2 202639

Buyers vs sellers

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

Bought or addedCut or sold out
20020Q1 26: 14 bought or addedQ1 26: 10 cut or sold outQ1 26Q2 26: 6 bought or addedQ2 26: 8 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q1 20261410
Q2 202668

Biggest buyers

MIZUHO SECURITIES USA LLC Added +688,168+688.2k
HIGHBRIDGE CAPITAL MANAGEMENT LLC Added +452,326+452.3k
Crossingbridge Advisors, LLC Added +250,000+250.0k
WOLVERINE ASSET MANAGEMENT LLC Added +20,314+20.3k
Karpus Management, Inc. Added +17,900+17.9k
UBS Group AG Added +2+2

Biggest sellers

Meteora Capital, LLC Reduced -646,387-646.4k
Clear Street Group Inc. Reduced -63,800-63.8k
Shaolin Capital Management LLC Reduced -60,962-61.0k
CSS LLC/IL Reduced -13,211-13.2k
Virtu Financial LLC Sold out -13,105-13.1k
ABC ARBITRAGE SA Reduced -5,000-5.0k
BOOTHBAY FUND MANAGEMENT, LLC Reduced -1,023-1.0k
TORONTO DOMINION BANK Sold out -497-497

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
MIZUHO FINANCIAL GROUP INC 13G · institution -1.3 pts · filed 2026-05-14 5.4% -1.3 pts 643.0k≈ $6.5m 2026-05-14

Fell to 5% or below in the last year: WOLVERINE ASSET MANAGEMENT LLC (3.1%, 2026-10-06), METEORA CAPITAL, LLC (1.1%, 2026-08-14)

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.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 1 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—0——
Q2 20250—0——
Q3 20250—0——
Q4 20251$3.6m0——
Q1 20260—0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 MIZUHO SECURITIES USA LLC 0.13% of their portfolio NEW YORK, NY 1,331,2071.3m $13.4m $13.4m 0.13% Added +688.2k +688,168
2 Magnetar Financial LLC 0.06% of their portfolio EVANSTON, IL 699,994700.0k $7.1m $7.1m 0.06% Unchanged
3 WOLVERINE ASSET MANAGEMENT LLC 0.08% of their portfolio CHICAGO, IL 600,048600.0k $6.1m $6.1m 0.08% Added +20.3k +20,314
4 Westchester Capital Management, LLC 0.29% of their portfolio VALHALLA, NY 572,185572.2k $5.8m $5.8m 0.29% Unchanged
5 ARISTEIA CAPITAL, L.L.C. 0.09% of their portfolio GREENWICH, CT 558,328558.3k $5.7m $5.7m 0.09% Unchanged
6 AQR Arbitrage LLC 0.08% of their portfolio Greenwich, CT 536,609536.6k $5.5m $5.5m 0.08% Unchanged
7 WHITEBOX ADVISORS LLC 0.08% of their portfolio MINNEAPOLIS, MN 500,000500.0k $5.1m $5.1m 0.08% Unchanged
8 HIGHBRIDGE CAPITAL MANAGEMENT LLC 0.16% of their portfolio NEW YORK, NY 452,645452.6k $4.6m $4.6m 0.16% Added +452.3k +452,326
9 Hudson Bay Capital Management LP 0.02% of their portfolio STAMFORD, CT 400,000400.0k $4.1m $4.1m 0.02% Unchanged
10 BlueCrest Capital Management Ltd 0.17% of their portfolio ST HELIER, Y9 400,000400.0k $4.1m $4.1m 0.17% Unchanged
11 BERKLEY W R CORP 0.20% of their portfolio Greenwich, CT 392,235392.2k $4.0m $4.0m 0.20% Unchanged
12 Radcliffe Capital Management, L.P. 0.27% of their portfolio BALA CYNWYD, PA 350,000350.0k $3.6m $3.6m 0.27% Unchanged
13 GLAZER CAPITAL, LLC 0.09% of their portfolio New York, NY 339,306339.3k $3.4m $3.4m 0.09% Unchanged
14 Shaolin Capital Management LLC 0.20% of their portfolio Miami, FL 339,038339.0k $3.4m $3.4m 0.20% Reduced -61.0k -60,962
15 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 300,000300.0k $3.0m $3.0m 0.00% Unchanged
16 Crossingbridge Advisors, LLC 0.54% of their portfolio PLEASANTVILLE, NY 300,000300.0k $3.0m $3.0m 0.54% Added +250.0k +250,000
17 MANGROVE PARTNERS IM, LLC 0.18% of their portfolio Greenwich, CT 267,147267.1k $2.7m $2.7m 0.18% Unchanged
18 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 250,000250.0k $2.5m $2.5m 0.00% Unchanged
19 Linden Advisors LP 0.01% of their portfolio New York, NY 250,000250.0k $2.5m $2.5m 0.01% Unchanged
20 First Trust Capital Management L.P. 0.15% of their portfolio CHICAGO, IL 250,000250.0k $2.5m $2.5m 0.15% Unchanged
21 Periscope Capital Inc. 0.40% of their portfolio Toronto, A6 250,000250.0k $2.5m $2.5m 0.40% Unchanged
22 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 241,667241.7k $2.5m $2.5m 0.00% Unchanged
23 OMERS ADMINISTRATION Corp 0.01% of their portfolio TORONTO, A6 200,000200.0k $2.1m $2.1m 0.01% Unchanged
24 HEIGHTS CAPITAL MANAGEMENT, INC 0.47% of their portfolio SAN FRANCISCO, CA 200,000200.0k $2.0m $2.0m 0.47% Unchanged
25 Context Capital Management, LLC 0.04% of their portfolio LAJOLLA, CA 200,000200.0k $2.0m $2.0m 0.04% Unchanged
26 Clear Street Group Inc. 0.01% of their portfolio NEW YORK, NY 187,667187.7k $1.9m $1.9m 0.01% Reduced -63.8k -63,800
27 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 167,016167.0k $1.7m $1.7m 0.00% Unchanged
28 O'Connor Alternative Investments LLC 0.11% of their portfolio NEW YORK, NY 150,000150.0k $1.5m $1.5m 0.11% Unchanged
29 Meteora Capital, LLC 0.11% of their portfolio Boca Raton, FL 136,289136.3k $1.4m $1.4m 0.11% Reduced -646.4k -646,387
30 Mint Tower Capital Management B.V. 0.15% of their portfolio AMSTERDAM, P7 125,000125.0k $1.3m $1.3m 0.15% Unchanged
31 SONA ASSET MANAGEMENT (US) LLC 0.04% of their portfolio NEW YORK, NY 100,147100.1k $1.0m $1.0m 0.04% Unchanged
32 RIVERNORTH CAPITAL MANAGEMENT, LLC 0.05% of their portfolio WEST PALM BEACH, FL 100,000100.0k $1.0m $1.0m 0.05% Unchanged
33 L1 Global Manager Pty Ltd 0.82% of their portfolio Melbourne, C3 100,000100.0k $1.0m $1.0m 0.82% Unchanged
34 Karpus Management, Inc. 0.02% of their portfolio Pittsford, NY 84,07584.1k $854.2k $854.2k 0.02% Added +17.9k +17,900
35 CSS LLC/IL 0.02% of their portfolio CHICAGO, IL 36,78936.8k $373.8k $373.8k 0.02% Reduced -13.2k -13,211
36 ABC ARBITRAGE SA 0.04% of their portfolio PARIS, I0 35,00035.0k $355.6k $355.6k 0.04% Reduced -5.0k -5,000
37 Warberg Asset Management LLC 0.11% of their portfolio WINNETKA, IL 34,98735.0k $355.5k $355.5k 0.11% Unchanged
38 BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio NEW YORK, NY 25,68325.7k $260.9k $260.9k 0.00% Reduced -1.0k -1,023
39 UBS Group AG 0.00% of their portfolio ZURICH, V8 239239 $2.4k $2.4k 0.00% Added +2 +2