---
schema_version: "secwatch.filing_event.v1"
accession: "0001899287-23-000072"
form_type: "8-K"
ticker: "AMPX"
cik: "0001899287"
company_name: "Amprius Technologies, Inc."
filed_at: "2023-05-10T23:59:59+00:00"
generated_at: "2026-06-15T07:14:27.531069+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Amprius Technologies enters merger to eliminate majority stockholder Holdco structure

## Summary
- Holdco owns 77.1% of Amprius common stock; merger will dissolve holding company structure.
- Holdco stockholders receive Amprius shares at a 0.98x discounted exchange ratio (assumed 0.7056x).
- Post-merger, Holdco stockholders own 74.9% capital stock and 60.1% voting power; directors/officers own 5.2%/8.2%.
- Transaction requires approval of majority of unaffiliated Amprius stockholders, antitrust clearance, and NYSE listing; expected closing Q3 2023.
- Lock-up restrictions on new shares expire earlier of Sep 14, 2023 or 20 trading days at $12.50.

## SEC filing metadata
- accession: 0001899287-23-000072
- form_type: 8-K
- ticker: AMPX
- cik: 0001899287
- company_name: Amprius Technologies, Inc.
- filed_at: 2023-05-10T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 5.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1899287/000189928723000072/0001899287-23-000072-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1899287/000189928723000072/ampx-20230509.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001899287-23-000072
- JSON: https://secwatch.observer/filing/0001899287-23-000072.json
- Plain text: https://secwatch.observer/filing/0001899287-23-000072.txt

## Key facts
- Material Agreements
  Amprius Technologies, Inc. entered into Agreement and Plan of Merger and Reorganization with Amprius, Inc., Combine Merger Sub, Inc., and Combine Merger Sub, LLC (effective 2023-05-09).
  - Action: entry
  - Agreement: merger
  - Counterparty: Amprius, Inc., Combine Merger Sub, Inc., and Combine Merger Sub, LLC
  - Effective: 2023-05-09
  source text: On May 9, 2023, Amprius Technologies, Inc., a Delaware corporation (“Amprius”), entered into an Agreement and Plan of Merger and Reorganization (the “Merger Agreement”) with Amprius, Inc., a Delaware corporation (“Holdco”), Combine Merger Sub, Inc., a Delaware corporation (“Merger Sub I”), and Combine Merger Sub, LLC, a Delaware limited liability company (“Merger Sub II” and together with Merger Sub I, the “Merger Subs”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1899287/000189928723000072/0001899287-23-000072-index.htm

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