---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-015715"
form_type: "8-K"
ticker: "QTI"
cik: "0001844505"
company_name: "QT IMAGING HOLDINGS, INC."
filed_at: "2023-01-26T23:59:59+00:00"
generated_at: "2026-06-20T08:28:38.837356+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# GigCapital5 receives $160K from sponsor to extend business combination deadline to Feb 28, 2023

## Summary
- Sponsor deposited $160k into trust account; aggregate promissory note increased to $800k.
- Business combination period extended by one month to February 28, 2023; may extend to March 28, 2023.
- Working capital loan increased by $65k to $325k; convertible at $10/unit upon business combination.
- Company previously announced Business Combination Agreement with QT Imaging (Dec 8, 2022); extension provides more time to close.

## SEC filing metadata
- accession: 0001193125-23-015715
- form_type: 8-K
- ticker: QTI
- cik: 0001844505
- company_name: QT IMAGING HOLDINGS, INC.
- filed_at: 2023-01-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 2.03, 3.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1844505/000119312523015715/0001193125-23-015715-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1844505/000119312523015715/d445452d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-015715
- JSON: https://secwatch.observer/filing/0001193125-23-015715.json
- Plain text: https://secwatch.observer/filing/0001193125-23-015715.txt

## Key facts
- Debt Financings
  QT IMAGING HOLDINGS, INC. incurred debt of $325,000 with GigAcquisitions5, LLC at bear no interest.
  - Principal: $325,000
  - Counterparty: GigAcquisitions5, LLC
  - Rate: bear no interest
  - Event: incurrence
  source text: On January 25, 2023, the Company further amended and restated the Working Capital Note (the “Fourth Restated Working Capital Note”) to reflect an additional principal amount of $65,000 extended by the Sponsor to the Company for a collective principal amount under the Second Restated Working Capital Note of $325,000.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1844505/000119312523015715/0001193125-23-015715-index.htm
- Debt Financings
  QT IMAGING HOLDINGS, INC. incurred debt of $800,000 with GigAcquisitions5, LLC at bear no interest maturing repayable in full upon the consummation of a business combination.
  - Principal: $800,000
  - Counterparty: GigAcquisitions5, LLC
  - Rate: bear no interest
  - Maturity: repayable in full upon the consummation of a business combination
  - Event: incurrence
  source text: On January 25, 2023, the Company further amended and restated the Extension Note (the “Fourth Restated Extension Note”) to reflect an additional principal amount of $160,000 extended by the Sponsor to the Company for a collective principal amount under the Fourth Restated Extension Note of $800,000.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1844505/000119312523015715/0001193125-23-015715-index.htm

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