Who owns SPACSphere Acquisition Corp.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of SSAC 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 13.6M shares of SPACSphere Acquisition Corp. worth $135.9M — about 74.4% of shares outstanding; the largest disclosed holder is Polar Asset Management Partners Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
39
13F holders
$135.9M
value, 2026 filers
74.4%
of shares outstanding (13.6M sh)
12
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 SSAC's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Polar Asset Management Partners Inc. | 1.5M | $14.9M | 0.2% | 8.1% | 0.0% |
| 2 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | 1.4M | $14.2M | 0.3% | 7.8% | +2.5% |
| 3 | Karpus Management, Inc. | 1.2M | $12.5M | 0.4% | 6.8% | +2.6% |
| 4 | WOLVERINE ASSET MANAGEMENT LLC | 1.2M | $11.6M | 0.1% | 6.4% | +245.0% |
| 5 | Crossingbridge Advisors, LLCNEW | 845,112 | $8.4M | 1.5% | 4.6% | new |
| 6 | BERKLEY W R CORP | 768,983 | $7.7M | 0.4% | 4.2% | +34.1% |
| 7 | D. E. Shaw & Co., Inc. | 517,000 | $5.2M | 0.0% | 2.8% | 0.0% |
| 8 | GLAZER CAPITAL, LLC | 509,589 | $5.1M | 0.1% | 2.8% | +72.7% |
| 9 | Westchester Capital Management, LLCNEW | 500,000 | $5.0M | 0.2% | 2.7% | new |
| 10 | MIZUHO SECURITIES USA LLC | 491,508 | $4.8M | 0.1% | 2.7% | 0.0% |
| 11 | Linden Advisors LP | 450,000 | $4.5M | 0.0% | 2.5% | 0.0% |
| 12 | MANGROVE PARTNERS IM, LLC | 450,000 | $4.5M | 0.3% | 2.5% | 0.0% |
| 13 | ARISTEIA CAPITAL, L.L.C.NEW | 402,400 | $4.0M | 0.1% | 2.2% | new |
| 14 | SONA ASSET MANAGEMENT (US) LLCNEW | 350,000 | $3.5M | 0.1% | 1.9% | new |
| 15 | RIVERNORTH CAPITAL MANAGEMENT, LLC | 350,000 | $3.5M | 0.2% | 1.9% | 0.0% |
| 16 | Magnetar Financial LLCNEW | 300,000 | $3.0M | 0.0% | 1.6% | new |
| 17 | Shaolin Capital Management LLC | 272,169 | $2.7M | 0.1% | 1.5% | -32.0% |
| 18 | TWO SIGMA INVESTMENTS, LP | 271,875 | $2.7M | 0.0% | 1.5% | 0.0% |
| 19 | Clear Street Group Inc. | 249,404 | $2.5M | 0.0% | 1.4% | +277.1% |
| 20 | BNP PARIBAS FINANCIAL MARKETS | 229,356 | $2.3M | 0.0% | 1.3% | 0.0% |
| 21 | WHITEBOX ADVISORS LLC | 212,043 | $2.1M | 0.0% | 1.2% | 0.0% |
| 22 | Ghisallo Capital Management LLCNEW | 200,000 | $2.0M | 0.0% | 1.1% | new |
| 23 | Hudson Bay Capital Management LP | 200,000 | $2.0M | 0.0% | 1.1% | 0.0% |
| 24 | AQR Arbitrage LLC | 172,992 | $1.7M | 0.0% | 0.9% | +1.4% |
| 25 | Periscope Capital Inc. | 125,000 | $1.2M | 0.1% | 0.7% | 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.