Latest Period
Q1 2026
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 Q1 2026
Institutions Reporting
41
Shares (Excl. Options)
10,838,576
Price
$10.07
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- Security type / class
- Equity / Class A common stock
- Symbol
- YCY on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 10,838,576
- Total 13F value
- $108,962,517
- Portfolio coverage rank
- 0%
- Share change
- +2,139,228
- Value change
- +$21,534,770
- Number of holders
- 41
- Shares outstanding
- 11,876,722
- SEC-reported price per share
- $10.12
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
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.
- 41 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 34 to 41 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $86,367,618 to $108,962,517.
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
Open SEC evidence
Latest holder context comes from 41 institutions filings for Q1 2026.
Security key
G1000S109
Latest holder period
Q1 2026
13F holders
41
13D/G owners
2
CIK / CUSIP context first
Open Q1 2026 holders
YCY full holder history
AA Mission Acquisition Corp. II SEC filings
AA Mission Acquisition Corp. II company facts
AA Mission Acquisition Corp. II insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G1000S109:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
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 | |||
| METEORA CAPITAL, LLC | 6.6% | -2.3% | $7,873,721 | -$174,199 | 782,676 | -2.2% | Meteora Capital, LLC | 31 Mar 2026 |
As of 31 Mar 2026, 41 institutional investors reported holding 10,838,576 shares of AA Mission Acquisition Corp. II - Class A common stock (YCY). This represents 91% of the company’s total 11,876,722 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
83%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| METEORA CAPITAL, LLC | 6.6% | 782,676 | -2.2% | 0.58% | $7,850,240 |
| Magnetar Financial LLC | 5.9% | 699,994 | 0.07% | $7,048,940 | |
| MIZUHO SECURITIES USA LLC | 5.4% | 643,039 | -20% | 0.15% | $6,430,390 |
| WOLVERINE ASSET MANAGEMENT LLC | 4.9% | 579,734 | +19% | 0.09% | $5,837,921 |
| Westchester Capital Management, LLC | 4.8% | 572,185 | +634% | 0.28% | $5,739,016 |
| ARISTEIA CAPITAL, L.L.C. | 4.7% | 558,328 | 0% | 0.13% | $5,622,363 |
| AQR Arbitrage LLC | 4.5% | 536,609 | -3.1% | 0.09% | $5,382,188 |
| WHITEBOX ADVISORS LLC | 4.2% | 500,000 | 0% | 0.07% | $5,035,000 |
| Hudson Bay Capital Management LP | 3.4% | 400,000 | 0% | 0.02% | $4,028,000 |
| BlueCrest Capital Management Ltd | 3.4% | 400,000 | 0.38% | $4,028,000 | |
| Shaolin Capital Management LLC | 3.4% | 400,000 | 0% | 0.33% | $4,028,000 |
| BERKLEY W R CORP | 3.3% | 392,235 | +15% | 0.21% | $3,941,962 |
| Radcliffe Capital Management, L.P. | 2.9% | 350,000 | 0% | 0.27% | $3,517,500 |
| GLAZER CAPITAL, LLC | 2.9% | 339,306 | 0% | 0.07% | $3,403,000 |
| MILLENNIUM MANAGEMENT LLC | 2.5% | 300,000 | +200% | 0% | $3,021,000 |
| MANGROVE PARTNERS IM, LLC | 2.2% | 267,147 | 0% | 0.22% | $2,690,170 |
| Clear Street Group Inc. | 2.1% | 251,467 | -3.1% | 0.01% | $2,532,273 |
| First Trust Capital Management L.P. | 2.1% | 250,000 | 0% | 0.13% | $2,517,500 |
| Periscope Capital Inc. | 2.1% | 250,000 | -17% | 0.44% | $2,512,500 |
| D. E. Shaw & Co., Inc. | 2.1% | 250,000 | 0% | 0% | $2,517,500 |
| Linden Advisors LP | 2.1% | 250,000 | 0% | 0.01% | $2,517,500 |
| TWO SIGMA INVESTMENTS, LP | 2% | 241,667 | 0% | 0% | $2,423,920 |
| HEIGHTS CAPITAL MANAGEMENT, INC | 1.7% | 200,000 | 0.56% | $2,014,000 | |
| OMERS ADMINISTRATION Corp | 1.7% | 200,000 | 0% | 0.01% | $2,010,000 |
| Context Capital Management, LLC | 1.7% | 200,000 | 0% | 0.05% | $2,010,000 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
2
Latest
Q1 2026
Rows shown
1-2 of 2