---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-25-008044"
form_type: "8-K/A"
ticker: "QUMS"
cik: "0002070900"
company_name: "Quantumsphere Acquisition Corp"
filed_at: "2025-10-10T23:59:59+00:00"
generated_at: "2026-05-17T04:07:12.163694+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Quantumsphere raises $82.8M in IPO; going concern doubt, restatement

## Summary
- IPO of 8,280,000 units at $10/unit grossed $82.8M; sponsor bought 228,650 private units for $2.29M.
- Trust account holds $82.8M; must complete business combination by Feb 7, 2027 or liquidate.
- Auditor flags substantial doubt about going concern; working capital only $1.1M insufficient for operations.
- Financial statements restated to correct omission of finder fee agreement with Aspira Capital Consulting.

## SEC filing metadata
- accession: 0001829126-25-008044
- form_type: 8-K/A
- ticker: QUMS
- cik: 0002070900
- company_name: Quantumsphere Acquisition Corp
- filed_at: 2025-10-10T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2070900/000182912625008044/0001829126-25-008044-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2070900/000182912625008044/quantumsphereacq_8ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-25-008044
- JSON: https://secwatch.observer/filing/0001829126-25-008044.json
- Plain text: https://secwatch.observer/filing/0001829126-25-008044.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.