---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-23-069046"
form_type: "8-K"
ticker: "ESLA"
cik: "0001844417"
company_name: "Estrella Immunopharma, Inc."
filed_at: "2023-08-18T23:59:59+00:00"
generated_at: "2026-06-11T07:05:09.573183+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# TradeUP extends business combination deadline to Sept 19 with $37,432.70 deposit from Estrella

## Summary
- Extension fee of $37,432.70 ($0.05 per share) deposited into trust account to extend deadline to September 19, 2023.
- Payment made by merger partner Estrella Biopharma under Merger Agreement; recorded as unsecured promissory note.
- Note convertible into shares at $10/share if business combination closes; repayable if deal terminates.
- Company retains ability to extend monthly through July 14, 2024.

## SEC filing metadata
- accession: 0001213900-23-069046
- form_type: 8-K
- ticker: ESLA
- cik: 0001844417
- company_name: Estrella Immunopharma, Inc.
- filed_at: 2023-08-18T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1844417/000121390023069046/0001213900-23-069046-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1844417/000121390023069046/ea183872-8k425_tradeup.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-23-069046
- JSON: https://secwatch.observer/filing/0001213900-23-069046.json
- Plain text: https://secwatch.observer/filing/0001213900-23-069046.txt

## Key facts
- Debt Financings
  Estrella Immunopharma, Inc. incurred loan of $37,432.70 with Estrella Biopharma, Inc. at no interest maturing upon the consummation of the Company’s business combination.
  - Instrument: loan
  - Principal: $37,432.70
  - Counterparty: Estrella Biopharma, Inc.
  - Rate: no interest
  - Maturity: upon the consummation of the Company’s business combination
  - Event: incurrence
  source text: Estrella has deposited a monthly extension payment of $37,432.70 to the trust account of the Company to extend the deadline for the Company to complete the business combination contemplated therein by September 19, 2023. Such deposit is evidenced by an unsecured promissory note in the principal amount of $37,432.70 issued by the Company to Estrella (the “Extension Note”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1844417/000121390023069046/0001213900-23-069046-index.htm

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