Who owns AA Mission Acquisition Corp. II?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of YCY from SEC Form 13F filings across 39 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 39 institutions disclosed 10.8M shares of AA Mission Acquisition Corp. II worth $109.5M — about 93.7% of shares outstanding; the largest disclosed holder is Magnetar Financial LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
39
13F holders
$109.5M
value, 2026 filers
93.7%
of shares outstanding (10.8M sh)
0
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of YCY's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Magnetar Financial LLC | 699,994 | $7.1M | 0.1% | 6.1% | 0.0% |
| 2 | MIZUHO SECURITIES USA LLC | 643,039 | $6.4M | 0.2% | 5.6% | 0.0% |
| 3 | WOLVERINE ASSET MANAGEMENT LLC | 600,048 | $6.1M | 0.1% | 5.2% | +3.5% |
| 4 | Westchester Capital Management, LLC | 572,185 | $5.8M | 0.3% | 5% | 0.0% |
| 5 | ARISTEIA CAPITAL, L.L.C. | 558,328 | $5.7M | 0.1% | 4.9% | 0.0% |
| 6 | AQR Arbitrage LLC | 536,609 | $5.5M | 0.1% | 4.7% | 0.0% |
| 7 | WHITEBOX ADVISORS LLC | 500,000 | $5.1M | 0.1% | 4.3% | 0.0% |
| 8 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | 452,645 | $4.6M | 0.1% | 3.9% | +141795.0% |
| 9 | Hudson Bay Capital Management LP | 400,000 | $4.1M | 0.0% | 3.5% | 0.0% |
| 10 | BlueCrest Capital Management Ltd | 400,000 | $4.1M | 0.1% | 3.5% | 0.0% |
| 11 | BERKLEY W R CORP | 392,235 | $4.0M | 0.2% | 3.4% | 0.0% |
| 12 | Radcliffe Capital Management, L.P. | 350,000 | $3.6M | 0.3% | 3% | 0.0% |
| 13 | GLAZER CAPITAL, LLC | 339,306 | $3.4M | 0.1% | 3% | 0.0% |
| 14 | Shaolin Capital Management LLC | 339,038 | $3.4M | 0.2% | 2.9% | -15.2% |
| 15 | Crossingbridge Advisors, LLC | 300,000 | $3.0M | 0.5% | 2.6% | +500.0% |
| 16 | MILLENNIUM MANAGEMENT LLC | 300,000 | $3.0M | 0.0% | 2.6% | 0.0% |
| 17 | MANGROVE PARTNERS IM, LLC | 267,147 | $2.7M | 0.2% | 2.3% | 0.0% |
| 18 | Linden Advisors LP | 250,000 | $2.5M | 0.0% | 2.2% | 0.0% |
| 19 | Periscope Capital Inc. | 250,000 | $2.5M | 0.2% | 2.2% | 0.0% |
| 20 | D. E. Shaw & Co., Inc. | 250,000 | $2.5M | 0.0% | 2.2% | 0.0% |
| 21 | First Trust Capital Management L.P. | 250,000 | $2.5M | 0.1% | 2.2% | 0.0% |
| 22 | TWO SIGMA INVESTMENTS, LP | 241,667 | $2.5M | 0.0% | 2.1% | 0.0% |
| 23 | Context Capital Management, LLC | 200,000 | $2.0M | 0.0% | 1.7% | 0.0% |
| 24 | OMERS ADMINISTRATION Corp | 200,000 | $2.1M | 0.0% | 1.7% | 0.0% |
| 25 | HEIGHTS CAPITAL MANAGEMENT, INC | 200,000 | $2.0M | 0.5% | 1.7% | 0.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.