Quantumsphere Acquisition Corp - QUMS
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 7
Latest filed: Mar 11, 2026
| Form | Count |
|---|---|
| 8-K | 3 |
| SCHEDULE 13G | 2 |
| SCHEDULE 13G/A | 1 |
| 8-K/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Mar 11, 2026 | 8-K | Mar 03, 2026 | 0001829126-26-002191 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | — | 0000902664-26-001097 | View |
| Jan 23, 2026 | 8-K | Jan 13, 2026 | 0001829126-26-000503 | View |
| Nov 14, 2025 | SCHEDULE 13G | — | 0000902664-25-004957 | View |
| Nov 07, 2025 | SCHEDULE 13G | — | 0001140361-25-041135 | View |
| Oct 10, 2025 | 8-K/A | Aug 07, 2025 | 0001829126-25-008044 | View |
| Oct 06, 2025 | 8-K | Oct 03, 2025 | 0001829126-25-007899 | View |