---
schema_version: "secwatch.filing_event.v1"
accession: "0001899287-23-000069"
form_type: "8-K"
ticker: "AMPX"
cik: "0001899287"
company_name: "Amprius Technologies, Inc."
filed_at: "2023-05-10T23:59:59+00:00"
generated_at: "2026-06-15T07:14:23.988206+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Amprius Q1 revenue falls 67% to $0.7M; announces merger with controlling stockholder

## Summary
- Revenue $0.7M (down 67% YoY); net loss $9.1M ($0.11 EPS) vs $2.9M loss in Q1 2022.
- Gross margin worsened to -504% due to $1.4M broker charge & $0.3M start-up costs.
- Shipped to 19 customers; expanded AeroVironment contract for Switchblade 300 Block 20.
- Merger agreement with 77% stockholder Amprius, Inc. to eliminate controlling stockholder; special meeting Q3 2023.
- Capacity expansion: leased 25,000 sq ft Fremont for 2 MWh line by end-2023; leased 775k sq ft Brighton, CO for up to 5 GWh.

## SEC filing metadata
- accession: 0001899287-23-000069
- form_type: 8-K
- ticker: AMPX
- cik: 0001899287
- company_name: Amprius Technologies, Inc.
- filed_at: 2023-05-10T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1899287/000189928723000069/0001899287-23-000069-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1899287/000189928723000069/ampx-20230510.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001899287-23-000069
- JSON: https://secwatch.observer/filing/0001899287-23-000069.json
- Plain text: https://secwatch.observer/filing/0001899287-23-000069.txt

## Key facts
- Earnings Releases
  Amprius Technologies, Inc. reported financial results for first fiscal quarter ended March 31, 2023.
  - Period: first fiscal quarter ended March 31, 2023
  - Result: reported results
  source text: On May 10, 2023, Amprius Technologies, Inc. (the “Company”) announced its business and financial results for its first fiscal quarter ended March 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1899287/000189928723000069/0001899287-23-000069-index.htm

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