---
schema_version: "secwatch.filing_event.v1"
accession: "0001899287-26-000003"
form_type: "8-K"
ticker: "AMPX"
cik: "0001899287"
company_name: "Amprius Technologies, Inc."
filed_at: "2026-01-12T23:59:59+00:00"
generated_at: "2026-05-16T10:57:31.038819+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Amprius completes $100M ATM equity offering, net proceeds ~$97.5M from 25.5M shares

## Summary
- Raised ~$97.5M net from sale of 25.5M shares under ATM program originally capped at $100M.
- In Q4 2025, sold ~$19.6M at average price $11.17/share; program now fully concluded.
- Sales Agreement with B. Riley, Cantor Fitzgerald and H.C. Wainwright terminated.
- Company does not intend further sales under the ATM program.

## SEC filing metadata
- accession: 0001899287-26-000003
- form_type: 8-K
- ticker: AMPX
- cik: 0001899287
- company_name: Amprius Technologies, Inc.
- filed_at: 2026-01-12T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1899287/000189928726000003/0001899287-26-000003-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1899287/000189928726000003/ampx-20260112.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001899287-26-000003
- JSON: https://secwatch.observer/filing/0001899287-26-000003.json
- Plain text: https://secwatch.observer/filing/0001899287-26-000003.txt

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