---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-026378"
form_type: "8-K"
ticker: "LNZA"
cik: "0001843724"
company_name: "LanzaTech Global, Inc."
filed_at: "2025-05-19T23:59:59+00:00"
generated_at: "2026-05-21T02:06:35.571269+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# LanzaTech Q1 revenue $9.5M, net loss $19.2M; going concern doubt remains despite $40M equity

## Summary
- Total revenue $9.5M, down from $10.2M YoY; CarbonSmart revenue growth offset biorefining and JDA declines.
- Net loss $19.2M vs $25.5M YoY; Adjusted EBITDA loss widened to $30.5M from $22.1M.
- Closed $40M preferred equity in May 2025; management still concludes substantial doubt about going concern.
- Cost reduction actions underway to sharpen focus and streamline operations; no formal guidance provided.

## SEC filing metadata
- accession: 0001628280-25-026378
- form_type: 8-K
- ticker: LNZA
- cik: 0001843724
- company_name: LanzaTech Global, Inc.
- filed_at: 2025-05-19T23:59:59+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/1843724/000162828025026378/0001628280-25-026378-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1843724/000162828025026378/amci-20250519.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-026378
- JSON: https://secwatch.observer/filing/0001628280-25-026378.json
- Plain text: https://secwatch.observer/filing/0001628280-25-026378.txt

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