---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-297655"
form_type: "8-K"
ticker: "QTI"
cik: "0001844505"
company_name: "QT IMAGING HOLDINGS, INC."
filed_at: "2023-12-18T23:59:59+00:00"
generated_at: "2026-06-07T11:27:15.721528+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# GigCapital5 secures $1.566M in new sponsor notes for working capital

## Summary
- Amended convertible note to $1.5M, adding $53,640; converts at $10/unit into 150K private placement units.
- Issued new $66,360 non-convertible note to sponsor; both notes bear no interest, due upon business combination.
- Proceeds for working capital; not deposited into trust; sponsor waived claims on trust account.
- Full conversion of convertible note would result in 150,000 private placement units issued.

## SEC filing metadata
- accession: 0001193125-23-297655
- form_type: 8-K
- ticker: QTI
- cik: 0001844505
- company_name: QT IMAGING HOLDINGS, INC.
- filed_at: 2023-12-18T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1844505/000119312523297655/0001193125-23-297655-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1844505/000119312523297655/d648533d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-297655
- JSON: https://secwatch.observer/filing/0001193125-23-297655.json
- Plain text: https://secwatch.observer/filing/0001193125-23-297655.txt

## Key facts
- Debt Financings
  QT IMAGING HOLDINGS, INC. incurred convertible notes of $1,500,000 with GigAcquisitions5, LLC at no interest maturing upon the consummation of a business combination.
  - Instrument: convertible notes
  - Principal: $1,500,000
  - Counterparty: GigAcquisitions5, LLC
  - Rate: no interest
  - Maturity: upon the consummation of a business combination
  - Event: incurrence
  source text: On December 13, 2023, the Company further amended and restated the Convertible Working Capital Note (the “Eleventh Restated Working Capital Note”) to reflect an additional principal amount of $53,640 extended by the Sponsor to the Company for a collective principal amount under the Eleventh Restated Working Capital Note of $1,500,000.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1844505/000119312523297655/0001193125-23-297655-index.htm
- Debt Financings
  QT IMAGING HOLDINGS, INC. incurred loan of $66,360 with GigAcquisitions5, LLC at no interest maturing upon the consummation of a business combination.
  - Instrument: loan
  - Principal: $66,360
  - Counterparty: GigAcquisitions5, LLC
  - Rate: no interest
  - Maturity: upon the consummation of a business combination
  - Event: incurrence
  source text: On December 13, 2023, the Company issued an additional unsecured non-convertible promissory note to the Sponsor for a collective principal amount of $66,360 (the “Non-Convertible Working Capital Note”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1844505/000119312523297655/0001193125-23-297655-index.htm

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