AA Mission Acquisition Corp. II (YCY) — Institutional Holders, Q2 2026
44 institutional investment managers reported a YCY position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $115.8M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
YCY in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- MIZUHO SECURITIES USAAdded · +688,168 sh+$4.7M
- HIGHBRIDGE CAPITAL MANAGEMENTNew · +452,645 sh+$3.1M
- Crossingbridge AdvisorsAdded · +250,000 sh+$1.7M
- Karpus ManagementAdded · +17,900 sh+$122.6K
- AQR ArbitrageAdded · +4,936 sh+$33.8K
Biggest sellers
- METEORA CAPITALTrimmed · -732,578 sh-$5.0M
- HEIGHTS CAPITAL MANAGEMENTTrimmed · -100,000 sh-$685.0K
- Clear Street GroupTrimmed · -98,468 sh-$674.5K
- Shaolin Capital ManagementTrimmed · -60,962 sh-$417.6K
- BERKLEY W RTrimmed · -22,137 sh-$151.6K
YCY 13F holders ranked 1–44 of 44
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | MIZUHO SECURITIES USA#1 · 1,331,207 sh | 1,331,207 | $13.4M | 0.13% | +107.0% |
| 2 | Magnetar Financial#2 · 1,049,991 sh | 1,049,991 | $7.2M | 0.07% | 0.0% |
| 3 | WOLVERINE ASSET MANAGEMENT#3 · 600,048 sh | 600,048 | $6.1M | 0.05% | +0.8% |
| 4 | Westchester Capital Management#4 · 819,275 sh | 819,275 | $5.9M | 0.29% | 0.0% |
| 5 | ARISTEIA CAPITAL, L.L.C.#5 · 961,755 sh | 961,755 | $5.8M | 0.07% | 0.0% |
| 6 | AQR Arbitrage#6 · 820,134 sh | 820,134 | $5.5M | 0.08% | +0.6% |
| 7 | WHITEBOX ADVISORS#7 · 750,000 sh | 750,000 | $5.1M | 0.07% | 0.0% |
| 8 | HIGHBRIDGE CAPITAL MANAGEMENT#8 · 452,645 sh | 452,645 | $4.6M | 0.11% | New |
| 9 | Hudson Bay Capital Management#9 · 600,000 sh | 600,000 | $4.1M | 0.01% | 0.0% |
| 10 | BlueCrest Capital Management Ltd#10 · 400,000 sh | 400,000 | $4.1M | 0.13% | 0.0% |
| 11 | BERKLEY W R#11 · 504,025 sh | 504,025 | $4.0M | 0.19% | -4.2% |
| 12 | Radcliffe Capital Management, L.P.#12 · 524,999 sh | 524,999 | $3.6M | 0.27% | 0.0% |
| 13 | Shaolin Capital Management#13 · 539,038 sh | 539,038 | $3.5M | 0.17% | -10.2% |
| 14 | GLAZER CAPITAL#14 · 508,956 sh | 508,956 | $3.5M | 0.09% | 0.0% |
| 15 | MILLENNIUM MANAGEMENT#15 · 300,000 sh | 300,000 | $3.0M | <0.01% | 0.0% |
| 16 | Crossingbridge Advisors#16 · 300,000 sh | 300,000 | $3.0M | 0.54% | +500.0% |
| 17 | MANGROVE PARTNERS IM#17 · 267,147 sh | 267,147 | $2.7M | 0.18% | 0.0% |
| 18 | PERISCOPE CAPITAL#18 · 400,000 sh | 400,000 | $2.6M | 0.23% | 0.0% |
| 19 | LINDEN ADVISORS#19 · 374,999 sh | 374,999 | $2.6M | 0.01% | 0.0% |
| 20 | D. E. Shaw#20 · 375,000 sh | 375,000 | $2.6M | <0.01% | 0.0% |
| 21 | First Capital Management L.P.#21 · 250,000 sh | 250,000 | $2.5M | 0.15% | 0.0% |
| 22 | TWO SIGMA INVESTMENTS#22 · 241,667 sh | 241,667 | $2.5M | <0.01% | 0.0% |
| 23 | OMERS ADMINISTRATION#23 · 300,000 sh | 300,000 | $2.1M | 0.01% | 0.0% |
| 24 | HEIGHTS CAPITAL MANAGEMENT#24 · 200,000 sh | 200,000 | $2.0M | 0.47% | -33.3% |
| 25 | Clear Street Group#25 · 388,497 sh | 388,497 | $2.0M | <0.01% | -20.2% |
| 26 | BNP PARIBAS FINANCIAL MARKETS#26 · 240,239 sh | 240,239 | $1.7M | <0.01% | 0.0% |
| 27 | O'Connor Alternative Investments#27 · 150,000 sh | 150,000 | $1.5M | 0.11% | 0.0% |
| 28 | METEORA CAPITAL#28 · 236,289 sh | 236,289 | $1.4M | 0.12% | -75.6% |
| 29 | Mint Tower Capital Management B.V.#29 · 187,500 sh | 187,500 | $1.3M | 0.15% | 0.0% |
| 30 | RIVERNORTH CAPITAL MANAGEMENT#30 · 200,000 sh | 200,000 | $1.0M | 0.05% | 0.0% |
| 31 | SONA ASSET MANAGEMENT (US)#31 · 100,147 sh | 100,147 | $1.0M | 0.02% | 0.0% |
| 32 | L1 Global Manager Pty Ltd#32 · 100,000 sh | 100,000 | $1.0M | 0.72% | 0.0% |
| 33 | Karpus Management#33 · 84,075 sh | 84,075 | $854.2K | 0.02% | -2.4% |
| 34 | BOOTHBAY FUND MANAGEMENT#34 · 78,524 sh | 78,524 | $797.8K | 0.01% | -1.3% |
| 35 | CSS#35 · 205,622 sh | 205,622 | $410.9K | 0.02% | -6.0% |
| 36 | ABC ARBITRAGE SA#36 · 35,000 sh | 35,000 | $355.6K | — | -12.5% |
| 37 | Warberg Asset Management#37 · 34,987 sh | 34,987 | $355.5K | 0.06% | 0.0% |
| 38 | TORONTO DOMINION BANK#38 · 275,000 sh | 275,000 | $60.5K | <0.01% | -6.7% |
| 39 | Decagon Asset Management LLP#39 · 130,692 sh | 130,692 | $28.8K | <0.01% | 0.0% |
| 40 | Verition Fund Management#40 · 109,953 sh | 109,953 | $24.2K | 0.00% | 0.0% |
| 41 | Lineage Point Capital#41 · 75,500 sh | 75,500 | $16.6K | <0.01% | New |
| 42 | Schonfeld Strategic Advisors#42 · 15,185 sh | 15,185 | $3.3K | 0.00% | -35.3% |
| 43 | UBS Group AG#43 · 1,280 sh | 1,280 | $2.7K | 0.00% | +12.6% |
| 44 | Context Capital Management#44 · 300,000 sh | 300,000 | — | — | 0.0% |
Funds that sold out of YCY in Q2 2026 (1)
Held YCY at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Virtu Financial13,105 sh | 13,105 | $132.0K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.