---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-154824"
form_type: "8-K"
ticker: "QTI"
cik: "0001844505"
company_name: "QT IMAGING HOLDINGS, INC."
filed_at: "2023-05-26T23:59:59+00:00"
generated_at: "2026-06-14T13:23:03.231700+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# GigCapital5 extends business combination deadline to June 28, 2023 with additional $100K sponsor loan

## Summary
- Sponsor deposited $100,000 into trust account to extend combination period by one month.
- Amended promissory note now totals $1,260,000 aggregate principal (includes nine prior monthly contributions).
- New deadline for business combination is June 28, 2023 (24 months from IPO closing).
- Note is non-convertible, unsecured, interest-free, repayable upon consummation of initial business combination.

## SEC filing metadata
- accession: 0001193125-23-154824
- form_type: 8-K
- ticker: QTI
- cik: 0001844505
- company_name: QT IMAGING HOLDINGS, INC.
- filed_at: 2023-05-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1844505/000119312523154824/0001193125-23-154824-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1844505/000119312523154824/d515415d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-154824
- JSON: https://secwatch.observer/filing/0001193125-23-154824.json
- Plain text: https://secwatch.observer/filing/0001193125-23-154824.txt

## Key facts
- Debt Financings
  QT IMAGING HOLDINGS, INC. amended debt of $1,260,000 with GigAcquisitions5, LLC at bears no interest maturing upon the consummation of a business combination.
  - Principal: $1,260,000
  - Counterparty: GigAcquisitions5, LLC
  - Rate: bears no interest
  - Maturity: upon the consummation of a business combination
  - Event: amendment
  source text: On May 25, 2023, the Company further amended and restated the Extension Note (the “Eighth Restated Extension Note”) to reflect an additional principal amount of $100,000 extended by the Sponsor to the Company for a collective principal amount under the Eighth Restated Extension Note of $1,260,000.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1844505/000119312523154824/0001193125-23-154824-index.htm

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