Who owns Black Spade Acquisition III Co?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of BIII from SEC Form 13F filings across 40 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, 40 institutions disclosed 13.8M shares of Black Spade Acquisition III Co worth $137.4M — about 60.2% of shares outstanding; the largest disclosed holder is ARISTEIA CAPITAL, L.L.C.. Source: SEC Form 13F filings, parsed by EvidInvest.
40
13F holders
$137.4M
value, 2026 filers
60.2%
of shares outstanding (13.8M sh)
10
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 BIII's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ARISTEIA CAPITAL, L.L.C. | 1.1M | $10.9M | 0.1% | 4.8% | 0.0% |
| 2 | TENOR CAPITAL MANAGEMENT Co., L.P. | 1.0M | $9.9M | 0.1% | 4.4% | 0.0% |
| 3 | Magnetar Financial LLC | 999,993 | $9.9M | 0.1% | 4.4% | 0.0% |
| 4 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 825,000 | $8.2M | 0.0% | 3.6% | 0.0% |
| 5 | AQR Arbitrage LLC | 760,440 | $7.6M | 0.1% | 3.3% | 0.0% |
| 6 | MILLENNIUM MANAGEMENT LLC | 750,000 | $7.5M | 0.0% | 3.3% | +400.0% |
| 7 | Fort Baker Capital Management LP | 700,000 | $7.0M | 0.5% | 3.1% | +40.0% |
| 8 | SONA ASSET MANAGEMENT (US) LLCNEW | 600,000 | $6.0M | 0.1% | 2.6% | new |
| 9 | Wealthspring Capital LLCNEW | 551,820 | $5.5M | 1.2% | 2.4% | new |
| 10 | GLAZER CAPITAL, LLC | 500,024 | $5.0M | 0.1% | 2.2% | 0.0% |
| 11 | Alberta Investment Management Corp | 500,000 | $5.0M | 0.0% | 2.2% | 0.0% |
| 12 | BNP PARIBAS FINANCIAL MARKETS | 439,560 | $4.4M | 0.0% | 1.9% | 0.0% |
| 13 | Periscope Capital Inc. | 418,800 | $4.2M | 0.4% | 1.8% | 0.0% |
| 14 | PICTON MAHONEY ASSET MANAGEMENT | 375,000 | $3.7M | 0.0% | 1.6% | 0.0% |
| 15 | Radcliffe Capital Management, L.P. | 369,263 | $3.7M | 0.3% | 1.6% | +5.5% |
| 16 | First Trust Capital Management L.P. | 350,000 | $3.5M | 0.2% | 1.5% | 0.0% |
| 17 | Shaolin Capital Management LLC | 282,712 | $2.8M | 0.1% | 1.2% | -29.3% |
| 18 | WHITEBOX ADVISORS LLC | 276,200 | $2.7M | 0.0% | 1.2% | 0.0% |
| 19 | BERKLEY W R CORP | 273,849 | $2.7M | 0.1% | 1.2% | 0.0% |
| 20 | Linden Advisors LP | 250,000 | $2.5M | 0.0% | 1.1% | 0.0% |
| 21 | MMCAP International Inc. SPCNEW | 250,000 | $2.5M | 0.2% | 1.1% | new |
| 22 | Hudson Bay Capital Management LP | 225,000 | $2.2M | 0.0% | 1% | 0.0% |
| 23 | Mint Tower Capital Management B.V. | 225,000 | $2.2M | 0.3% | 1% | 0.0% |
| 24 | TWO SIGMA INVESTMENTS, LP | 201,517 | $2.0M | 0.0% | 0.9% | 0.0% |
| 25 | Context Capital Management, LLC | 200,601 | $2.0M | 0.0% | 0.9% | 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.