Who owns SPACSphere Acquisition Corp. Class A Ordinary Shares (SSAC)
Which tracked institutional funds hold SSAC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SSAC company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-15). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
SSAC’s largest tracked holder by dollar value, Polar Asset Management Partners Inc., sizes it at 0.5% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.4pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SSAC divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Only one quarter (2026-Q1) of 13F history is available — a quarter-over-quarter accumulation delta needs two.
We do not publish a positioning read for a window we cannot measure honestly. A starting question, not a verdict.
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Polar Asset Management Partners Inc. new | 1,490,000 | $15M | 12.4% | 2026-Q1 |
| JPMORGAN CHASE & CO new | 1,390,123 | $14M | 11.6% | 2026-Q1 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC new | 1,390,123 | $14M | 11.6% | 2026-Q1 |
| Karpus Management, Inc. new | 1,217,210 | $12M | 10.1% | 2026-Q1 |
| BERKLEY W R CORP new | 573,350 | $6M | 4.8% | 2026-Q1 |
| Lineage Point Capital LP new | 570,000 | $6M | 4.7% | 2026-Q1 |
| D. E. Shaw & Co., Inc. new | 517,000 | $5M | 4.3% | 2026-Q1 |
| MIZUHO SECURITIES USA LLC new | 491,508 | $5M | 4.1% | 2026-Q1 |
| Linden Advisors LP new | 450,000 | $4M | 3.7% | 2026-Q1 |
| MANGROVE PARTNERS IM, LLC new | 450,000 | $4M | 3.7% | 2026-Q1 |
| Shaolin Capital Management LLC new | 400,000 | $4M | 3.3% | 2026-Q1 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC new | 350,000 | $3M | 2.9% | 2026-Q1 |
| WOLVERINE ASSET MANAGEMENT LLC new | 337,163 | $3M | 2.8% | 2026-Q1 |
| METEORA CAPITAL, LLC new | 316,717 | $3M | 2.6% | 2026-Q1 |
| GLAZER CAPITAL, LLC new | 295,113 | $3M | 2.5% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP new | 271,875 | $3M | 2.3% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS new | 229,356 | $2M | 1.9% | 2026-Q1 |
| WHITEBOX ADVISORS LLC new | 212,043 | $2M | 1.8% | 2026-Q1 |
| Hudson Bay Capital Management LP new | 200,000 | $2M | 1.7% | 2026-Q1 |
| AQR Arbitrage LLC new | 170,640 | $2M | 1.4% | 2026-Q1 |
| Parallax Volatility Advisers, L.P. new | 161,551 | $2M | 1.3% | 2026-Q1 |
| Periscope Capital Inc. new | 125,000 | $1M | 1.0% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC new | 100,000 | $990K | 0.8% | 2026-Q1 |
| Radcliffe Capital Management, L.P. new | 75,000 | $742K | 0.6% | 2026-Q1 |
| Clear Street Group Inc. new | 66,146 | $655K | 0.6% | 2026-Q1 |
| ABC ARBITRAGE SA new | 40,000 | $396K | 0.3% | 2026-Q1 |
| TORONTO DOMINION BANK new | 31,394 | $311K | 0.3% | 2026-Q1 |
| Kepos Capital LP new | 30,000 | $297K | 0.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC new | 29,628 | $293K | 0.2% | 2026-Q1 |
| TrueMark Investments, LLC new | 26,000 | $257K | 0.2% | 2026-Q1 |
| HRT FINANCIAL LP new | 11,300 | $111K | 0.1% | 2026-Q1 |
| L1 Global Manager Pty Ltd new | 10,000 | $99K | 0.1% | 2026-Q1 |
| MORGAN STANLEY new | 8 | $79 | 0.0% | 2026-Q1 |
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.