Security Snapshot

AA Mission Acquisition Corp. II - Class A common stock (YCY) Institutional Ownership

CUSIP: G1000S109

13F Institutional Holders and Ownership History from Q4 2025 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

39

Shares (Excl. Options)

10,820,262

Price

$10.16

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
-18,314
Value change
-$174,920
Number of holders
39
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
11,851,217
SEC-reported price per share
$10.21
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • YCY - AA Mission Acquisition Corp. II - Class A common stock is tracked under CUSIP G1000S109.
  • 39 institutions reported positions in Q2 2026.
  • 3 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 41 to 39 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $108,962,517 to $109,966,040.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 39 institutions filings for Q2 2026.

Open SEC evidence

Security key

G1000S109

Latest holder period

Q2 2026

13F holders

39

13D/G owners

3

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
3
Security
YCY
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
MIZUHO FINANCIAL GROUP INC 6.7% $7,984,459 800,046 Mizuho Financial Group, Inc. 31 Dec 2025
WOLVERINE ASSET MANAGEMENT LLC 5.1% $6,090,487 600,048 Wolverine Asset Management, LLC 30 Jun 2026
METEORA CAPITAL, LLC 1.2% -78% $1,395,599 -$6,619,003 136,289 -83% Meteora Capital, LLC 30 Jun 2026

As of 30 Jun 2026, 39 institutional investors reported holding 10,820,262 shares of AA Mission Acquisition Corp. II - Class A common stock (YCY). This represents 91% of the company’s total 11,851,217 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
80%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Magnetar Financial LLC 5.9% 699,994 0% 0.07% $7,111,939
MIZUHO SECURITIES USA LLC 5.8% 688,168 +7% 0.1% $6,936,733
WOLVERINE ASSET MANAGEMENT LLC 5.1% 600,048 +3.5% 0.08% $6,096,488
Westchester Capital Management, LLC 4.8% 572,185 0% 0.29% $5,813,400
ARISTEIA CAPITAL, L.L.C. 4.7% 558,328 0% 0.09% $5,672,612
AQR Arbitrage LLC 4.5% 536,609 0% 0.08% $5,451,947
WHITEBOX ADVISORS LLC 4.2% 500,000 0% 0.08% $5,080,000
HIGHBRIDGE CAPITAL MANAGEMENT LLC 3.8% 452,645 +141795% 0.16% $4,612,453
BlueCrest Capital Management Ltd 3.4% 400,000 0% 0.17% $4,064,000
Hudson Bay Capital Management LP 3.4% 400,000 0% 0.02% $4,064,000
BERKLEY W R CORP 3.3% 392,235 0% 0.2% $3,985,108
Radcliffe Capital Management, L.P. 3% 350,000 0% 0.27% $3,556,000
GLAZER CAPITAL, LLC 2.9% 339,306 0% 0.09% $3,447,000
Shaolin Capital Management LLC 2.9% 339,038 -15% 0.32% $3,444,626
MILLENNIUM MANAGEMENT LLC 2.5% 300,000 0% 0% $3,048,000
Crossingbridge Advisors, LLC 2.5% 300,000 +500% 0.54% $3,048,000
MANGROVE PARTNERS IM, LLC 2.3% 267,147 0% 0.18% $2,714,214
Linden Advisors LP 2.1% 250,000 0% 0.01% $2,540,000
Periscope Capital Inc. 2.1% 250,000 0% 0.4% $2,540,000
First Trust Capital Management L.P. 2.1% 250,000 0% 0.15% $2,540,000
D. E. Shaw & Co., Inc. 2.1% 250,000 0% 0% $2,540,000
TWO SIGMA INVESTMENTS, LP 2% 241,667 0% 0% $2,455,337
OMERS ADMINISTRATION Corp 1.7% 200,000 0% 0.01% $2,100,000
Context Capital Management, LLC 1.7% 200,000 0% 0.04% $2,032,000
HEIGHTS CAPITAL MANAGEMENT, INC 1.7% 200,000 0% 0.47% $2,032,000

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
3
Latest
Q2 2026
Rows shown
1-3 of 3
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 10,820,262 $109,966,040 -$174,920 $10.16 39
2026 Q1 10,838,576 $108,962,517 +$21,534,770 $10.07 41
2025 Q4 8,678,778 $86,367,618 +$83,912,084 $9.96 34
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