Company · CIK 2070900

# Quantumsphere Acquisition Corp

| CIK | [2070900](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002070900) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 6770 — Blank Checks |
| Incorporated in | E9 |
| Business address | NY |
| Listed | QUMS (Nasdaq), QUMSR (Nasdaq), QUMSU (Nasdaq) |
| First annual or quarterly report | 2025-09-19 |

## Offerings

 1 registration

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-287672 | SPAC Final prospectus | 2025-05-30 | 2025-08-07 | 6 |

## Filings

 6

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2025-08-07 | [424B4](https://www.sec.gov/Archives/edgar/data/2070900/000182912625005885/0001829126-25-005885-index.htm) Final prospectus | 333-287672 | 0001829126-25-005885 |
| 2025-08-05 | [EFFECT](https://www.sec.gov/Archives/edgar/data/2070900/999999999525002483/9999999995-25-002483-index.htm) Declared effective | 333-287672 | 9999999995-25-002483 |
| 2025-07-30 | [S-1/A](https://www.sec.gov/Archives/edgar/data/2070900/000182912625005566/0001829126-25-005566-index.htm) Amendment | 333-287672 | 0001829126-25-005566 |
| 2025-07-24 | [S-1/A](https://www.sec.gov/Archives/edgar/data/2070900/000182912625005327/0001829126-25-005327-index.htm) Amendment | 333-287672 | 0001829126-25-005327 |
| 2025-07-10 | [S-1/A](https://www.sec.gov/Archives/edgar/data/2070900/000182912625005004/0001829126-25-005004-index.htm) Amendment | 333-287672 | 0001829126-25-005004 |
| 2025-05-30 | [S-1](https://www.sec.gov/Archives/edgar/data/2070900/000182912625004085/0001829126-25-004085-index.htm) Registration filed | 333-287672 | 0001829126-25-004085 |

[All filings of this company](https://equitycapital.markets/filings?cik=2070900) · [CSV](https://equitycapital.markets/filings.csv?cik=2070900)

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Source page: https://equitycapital.markets/company/2070900 · Data: U.S. SEC EDGAR · CC BY 4.0