---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-293072"
form_type: "8-K"
ticker: "ABPO"
cik: "0001893219"
company_name: "Abpro Holdings, Inc."
filed_at: "2023-12-12T23:59:59+00:00"
generated_at: "2026-06-07T14:25:32.004281+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# ACAB and Abpro enter into business combination agreement

## Summary
- On Dec 11, 2023, ACAB, Abpro Merger Sub, and Abpro signed a Business Combination Agreement for Merger Sub to merge into Abpro, with Abpro surviving as ACAB's subsidiary.
- ACAB will change its name to 'Abpro Corporation' post-closing; Abpro stockholders receive ACAB common shares based on exchange ratio.
- Sponsor agrees to retain 2.95M shares, allocate 2.46M shares for non-redemption commitments, and forfeit remainder of its shares.
- Closing conditions include HSR clearance, stockholder approvals, min $8.7M closing cash, and ACAB net tangible assets of at least $5,000,001. Termination date is June 1, 2024.
- Earnout: Abpro equity holders eligible for shares in three tranches if ACAB stock reaches $13, $15, $18 per share over five years.

## SEC filing metadata
- accession: 0001193125-23-293072
- form_type: 8-K
- ticker: ABPO
- cik: 0001893219
- company_name: Abpro Holdings, Inc.
- filed_at: 2023-12-12T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1893219/000119312523293072/0001193125-23-293072-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1893219/000119312523293072/d648023d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-293072
- JSON: https://secwatch.observer/filing/0001193125-23-293072.json
- Plain text: https://secwatch.observer/filing/0001193125-23-293072.txt

## Key facts
- Material Agreements
  Abpro Holdings, Inc. entered into Business Combination Agreement with Atlantic Coastal Acquisition Corp. II (effective 2023-12-11).
  - Action: entry
  - Agreement: merger
  - Counterparty: Atlantic Coastal Acquisition Corp. II
  - Effective: 2023-12-11
  source text: On December 11, 2023, Atlantic Coastal Acquisition Corp. II, a Delaware corporation (“ ACAB ”), Abpro Merger Sub Corp., a Delaware corporation (“ Merger Sub ”), and Abpro Corporation, a Delaware corporation (the “ Company ” or “ Abpro ”), entered into a business combination agreement (the “ Business Combination Agreement ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1893219/000119312523293072/0001193125-23-293072-index.htm

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