---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-024052"
form_type: "8-K"
ticker: "LNZA"
cik: "0001843724"
company_name: "LanzaTech Global, Inc."
filed_at: "2025-05-09T23:59:59+00:00"
generated_at: "2026-05-22T02:11:13.454379+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# LanzaTech issues $40M Series A preferred stock; converts $40.2M notes; plans workforce reduction

## Summary
- Issued 20M Series A Convertible Senior Preferred shares for $40M to a large existing investor; $40.2M Convertible Notes due 2029 converted into 34M common shares.
- Agreed to issue warrants for 780M common shares at $0.0000001 per share, exercisable after shareholder approvals and a $35-60M subsequent financing.
- Preferred Stock has 8% annual dividend (accrued), three votes per conversion share, one board seat; mandatory redemption at 1.5x liquidation value on certain events.
- Workforce reduction at Skokie, Illinois facility expected to take effect around June 1, 2025.
- Company must seek shareholder approvals for reverse stock split, increased authorized shares, and issuance of common stock at $0.05 per share.

## SEC filing metadata
- accession: 0001628280-25-024052
- form_type: 8-K
- ticker: LNZA
- cik: 0001843724
- company_name: LanzaTech Global, Inc.
- filed_at: 2025-05-09T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 3.02, 3.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1843724/000162828025024052/0001628280-25-024052-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1843724/000162828025024052/amci-20250507.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-024052
- JSON: https://secwatch.observer/filing/0001628280-25-024052.json
- Plain text: https://secwatch.observer/filing/0001628280-25-024052.txt

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