---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-26-000503"
form_type: "8-K"
ticker: "QUMS"
cik: "0002070900"
company_name: "Quantumsphere Acquisition Corp"
filed_at: "2026-01-23T23:59:59+00:00"
generated_at: "2026-05-16T08:36:00.040725+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Quantumsphere SPAC target SACH raises $2.1M via share subscriptions from two investors

## Summary
- SACH Pte. Ltd. issued 2,055 shares to Cypress Innovations for $2M at $973.16/share.
- SACH issued 103 shares to individual investor Tan Cheng Siong for $100k at same price.
- Payments were received by SACH in Oct 2025 (Cypress) and Dec 2025/Jan 2026 (Tan).
- Subscriptions support SACH's financing activities ahead of planned business combination with Quantumsphere.
- No securities of Quantumsphere Acquisition Corporation were issued in these transactions.

## SEC filing metadata
- accession: 0001829126-26-000503
- form_type: 8-K
- ticker: QUMS
- cik: 0002070900
- company_name: Quantumsphere Acquisition Corp
- filed_at: 2026-01-23T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2070900/000182912626000503/0001829126-26-000503-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2070900/000182912626000503/quantumsphereacq_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-26-000503
- JSON: https://secwatch.observer/filing/0001829126-26-000503.json
- Plain text: https://secwatch.observer/filing/0001829126-26-000503.txt

## Key facts
- Material Agreements
  Quantumsphere Acquisition Corp entered into subscription agreement with an individual investor valued at $100,000 (effective 2026-01-13).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: an individual investor
  - Value: $100,000
  - Effective: 2026-01-13
  source text: On January 13, 2026, SACH Pte. Ltd. also entered into a separate subscription agreement with an individual investor, pursuant to which such investor agreed to purchase 103 ordinary shares of SACH Pte. Ltd. at a purchase price of $973.16 per share, for aggregate gross proceeds of $100,000.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2070900/000182912626000503/0001829126-26-000503-index.htm
- Material Agreements
  Quantumsphere Acquisition Corp entered into subscription agreement with Cypress Innovations Limited valued at $2,000,000 (effective 2026-01-13).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: Cypress Innovations Limited
  - Value: $2,000,000
  - Effective: 2026-01-13
  source text: On January 13, 2026, SACH Pte. Ltd., the Company’s target in its previously announced business combination, entered into a subscription agreement with Cypress Innovations Limited, pursuant to which Cypress Innovations Limited agreed to purchase 2,055 ordinary shares of SACH Pte. Ltd. at a purchase price of $973.16 per share, for aggregate gross proceeds of $2,000,000.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2070900/000182912626000503/0001829126-26-000503-index.htm

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