---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-23-077995"
form_type: "8-K"
ticker: "ESLA"
cik: "0001844417"
company_name: "Estrella Immunopharma, Inc."
filed_at: "2023-09-20T23:59:59+00:00"
generated_at: "2026-06-10T12:32:47.120757+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# TradeUP Acquisition Corp. enters $10M PIPE agreements with price adjustment for Estrella merger

## Summary
- Two investors commit $5M each at $10/share; additional shares if VWAP < $8.30 at closing or after 24 months.
- Pro forma combined equity ~$10.9M as of June 30; estimated to drop to ~$6.2M by Oct 2023 due to burn rate.
- Closing conditioned on Business Combination; funds returned if merger doesn't close within 2 business days of expected date.
- Company to file resale registration statement; must be effective within 90 days or 10 business days after SEC notice.
- Subscription agreements include representations, warranties, and indemnification for Securities Act liabilities.

## SEC filing metadata
- accession: 0001213900-23-077995
- form_type: 8-K
- ticker: ESLA
- cik: 0001844417
- company_name: Estrella Immunopharma, Inc.
- filed_at: 2023-09-20T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1844417/000121390023077995/0001213900-23-077995-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1844417/000121390023077995/ea185402-8k425_tradeup.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-23-077995
- JSON: https://secwatch.observer/filing/0001213900-23-077995.json
- Plain text: https://secwatch.observer/filing/0001213900-23-077995.txt

## Key facts
- Material Agreements
  Estrella Immunopharma, Inc. entered into Subscription Agreements with Plentiful Limited and Lianhe World Limited valued at $5,000,000 shares (effective 2023-09-14).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: Plentiful Limited and Lianhe World Limited
  - Value: $5,000,000 shares
  - Effective: 2023-09-14
  source text: On September 14, 2023, TradeUP Acquisition Corp. (the “Company” or “UPTD”) entered into subscription agreements (the “Subscription Agreements”) with each of Plentiful Limited, a Samoan limited company (“Plentiful Limited”) and Lianhe World Limited, a company incorporated in the People’s Republic of China (“Lianhe World” and together with Plentiful Limited, the “Investors”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1844417/000121390023077995/0001213900-23-077995-index.htm

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