Who owns Armada 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 AACIW from SEC Form 13F filings across 41 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, 41 institutions disclosed 9.4M shares of Armada Acquisition Corp. II worth $3.0M — about 522.4% of shares outstanding; the largest disclosed holder is ADAGE CAPITAL PARTNERS GP, L.L.C.. Source: SEC Form 13F filings, parsed by EvidInvest.
41
13F holders
$3.0M
value, 2026 filers
522.4%
of shares outstanding (9.4M sh)
30
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 AACIW's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.0M | $334,125 | 0.0% | 56.4% | 0.0% |
| 2 | Linden Advisors LPNEW | 700,000 | $225,750 | 0.0% | 39% | new |
| 3 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUNDNEW | 550,000 | $162,250 | 0.0% | 30.6% | new |
| 4 | Magnetar Financial LLCNEW | 500,000 | $161,250 | 0.0% | 27.8% | new |
| 5 | Polar Asset Management Partners Inc.NEW | 457,170 | $150,866 | 0.0% | 25.5% | new |
| 6 | Hudson Bay Capital Management LP | 450,000 | $148,500 | 0.0% | 25.1% | 0.0% |
| 7 | AQR Arbitrage LLCNEW | 389,627 | $109,096 | 0.0% | 21.7% | new |
| 8 | TENOR CAPITAL MANAGEMENT Co., L.P. | 350,000 | $115,500 | 0.0% | 19.5% | 0.0% |
| 9 | Alberta Investment Management CorpNEW | 350,000 | $115,500 | 0.0% | 19.5% | new |
| 10 | SONA ASSET MANAGEMENT (US) LLC | 325,000 | $107,250 | 0.0% | 18.1% | 0.0% |
| 11 | WHITEBOX ADVISORS LLCNEW | 275,000 | $90,750 | 0.0% | 15.3% | new |
| 12 | RK Capital Management, LLC/FL | 268,996 | $85,406 | 0.0% | 15% | -0.4% |
| 13 | BNP PARIBAS FINANCIAL MARKETSNEW | 268,840 | $85,357 | 0.0% | 15% | new |
| 14 | Lineage Point Capital LPNEW | 258,840 | $82,182 | 0.0% | 14.4% | new |
| 15 | WOLVERINE ASSET MANAGEMENT LLCNEW | 241,394 | $79,660 | 0.0% | 13.4% | new |
| 16 | GLAZER CAPITAL, LLCNEW | 220,885 | $70,000 | 0.0% | 12.3% | new |
| 17 | Radcliffe Capital Management, L.P. | 212,929 | $67,605 | 0.0% | 11.9% | 0.0% |
| 18 | Context Capital Management, LLCNEW | 200,000 | $66,000 | 0.0% | 11.1% | new |
| 19 | Schonfeld Strategic Advisors LLCNEW | 200,000 | $63,500 | 0.0% | 11.1% | new |
| 20 | TORONTO DOMINION BANKNEW | 195,406 | $64,484 | 0.0% | 10.9% | new |
| 21 | HEIGHTS CAPITAL MANAGEMENT, INCNEW | 179,526 | $50,267 | 0.0% | 10% | new |
| 22 | Kryger Capital LLCNEW | 174,678 | $57,644 | 0.0% | 9.7% | new |
| 23 | RIVERNORTH CAPITAL MANAGEMENT, LLCNEW | 160,399 | $48,120 | 0.0% | 8.9% | new |
| 24 | Verition Fund Management LLC | 150,050 | $42,014 | 0.0% | 8.4% | 0.0% |
| 25 | Periscope Capital Inc.NEW | 149,900 | $47,593 | 0.0% | 8.3% | new |
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. Research, not investment advice.