---
schema_version: "secwatch.filing_event.v1"
accession: "0001575872-23-000920"
form_type: "8-K"
ticker: "ESLA"
cik: "0001844417"
company_name: "Estrella Immunopharma, Inc."
filed_at: "2023-06-09T23:59:59+00:00"
generated_at: "2026-06-14T04:15:00.853044+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# TradeUP Acquisition Corp. issues $60K promissory note to founder for working capital

## Summary
- Issued $60,000 unsecured promissory note to Tradeup INC., a founder, on June 6, 2023.
- Note bears no interest; principal due upon business combination or company term expiry.
- Payee may convert note into private shares at $10.00 per share at least two days before close.
- Proceeds used for general working capital until initial business combination.

## SEC filing metadata
- accession: 0001575872-23-000920
- form_type: 8-K
- ticker: ESLA
- cik: 0001844417
- company_name: Estrella Immunopharma, Inc.
- filed_at: 2023-06-09T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1844417/000157587223000920/0001575872-23-000920-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1844417/000157587223000920/uptd-20230606.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001575872-23-000920
- JSON: https://secwatch.observer/filing/0001575872-23-000920.json
- Plain text: https://secwatch.observer/filing/0001575872-23-000920.txt

## Key facts
- Debt Financings
  Estrella Immunopharma, Inc. incurred loan of $60,000 with Tradeup INC. at no interest maturing upon the earlier to occur of (i) the consummation of the Business Combination or (ii) the date of expiry of the term of the Company.
  - Instrument: loan
  - Principal: $60,000
  - Counterparty: Tradeup INC.
  - Rate: no interest
  - Maturity: upon the earlier to occur of (i) the consummation of the Business Combination or (ii) the date of expiry of the term of the Company
  - Event: incurrence
  source text: On June 6, 2023, TradeUP Acquisition Corp. (the “Company”) issued an unsecured promissory note (the “Promissory Note”) in the amount of $60,000 to Tradeup INC., one of the founders of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1844417/000157587223000920/0001575872-23-000920-index.htm

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