---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-23-056454"
form_type: "8-K"
ticker: "ESLA"
cik: "0001844417"
company_name: "Estrella Immunopharma, Inc."
filed_at: "2023-07-12T23:59:59+00:00"
generated_at: "2026-06-13T09:35:15.891249+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# TradeUP Acquisition Corp. to liquidate trust account into cash, announces July 31 special meeting for Estrella merger

## Summary
- Trust account to liquidate U.S. treasury obligations and money market funds on July 14, 2023; proceeds held in cash to avoid Investment Company Act classification.
- Proxy statement/prospectus for business combination with Estrella Biopharma declared effective July 11, 2023; special meeting set for July 31, 2023.
- Extension meeting on July 17, 2023 to vote on extending combination deadline to July 14, 2024; redemption price ~$10.51/share if extension approved.
- Public stockholders may redeem shares at ~$10.51 in connection with extension (deadline July 13) or at expected ~$0.05 higher for merger (deadline July 27).
- If extension approved, additional $0.05 per share deposited monthly into trust for each non-redeemed share beyond July 19, 2023.

## SEC filing metadata
- accession: 0001213900-23-056454
- form_type: 8-K
- ticker: ESLA
- cik: 0001844417
- company_name: Estrella Immunopharma, Inc.
- filed_at: 2023-07-12T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1844417/000121390023056454/0001213900-23-056454-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1844417/000121390023056454/ea181670-8k_tradeupacq.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-23-056454
- JSON: https://secwatch.observer/filing/0001213900-23-056454.json
- Plain text: https://secwatch.observer/filing/0001213900-23-056454.txt

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