Institutional Ownership
Quantumsphere Acquisition Co
CUSIP G7387B114RIGHT 08/06/2030Q1 2026
13D / 13G Filings
0
Schedule 13D/13G on record
Beneficial Filers
0
Distinct reporting persons
Largest Stake
—
Max % of class reported
Institutional Holders
24
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
Schedule 13D (activist) & 13G (passive) 5%+ ownership filings
No 13D/13G filings on record yet
Schedule 13D/13G beneficial-ownership filings from 2020–present are ingested from SEC EDGAR. Coverage expands as the backfill and daily crawler run.
Top Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Harraden Circle Investments, LLC | 993.9K | $248.5K |
| 2 | Highbridge Capital Management LLC | 690.4K | $172.6K |
| 3 | Toronto Dominion Bank | 670.8K | $167.7K |
| 4 | Shaolin Capital Management LLC | 460.0K | $115.0K |
| 5 | Rivernorth Capital Management, LLC | 424.5K | $106.1K |
| 6 | Polar Asset Management Partners Inc. | 400.0K | $100.0K |
| 7 | Linden Advisors LP | 400.0K | $90.0K |
| 8 | Aqr Arbitrage LLC | 321.0K | $80.3K |
| 9 | Hgc Investment Management Inc. | 300.0K | $75.0K |
| 10 | Clear Street Group Inc. | 224.4K | $56.1K |