---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-028932"
form_type: "8-K"
ticker: "LNZA"
cik: "0001843724"
company_name: "LanzaTech Global, Inc."
filed_at: "2025-06-03T23:59:59+00:00"
generated_at: "2026-05-20T01:53:06.258141+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# LanzaTech amends $40M preferred stock deal; extends deadlines for warrant issuance

## Summary
- Amends May 2025 $40M Series A preferred stock purchase; extends deadline for warrants to buy 780M common shares at $0.0000001 per share.
- Stockholder meeting deadline extended to 75 days after closing; subsequent financing deadline extended to 45 days after approvals.
- Waiver granted for registration statement filing; new deadline is earlier of 45 days after stockholder approvals or 10 business days after warrant issuance.
- Failure to obtain BGTF Aggregator LP consent by June 6 triggers mandatory redemption of preferred shares.

## SEC filing metadata
- accession: 0001628280-25-028932
- form_type: 8-K
- ticker: LNZA
- cik: 0001843724
- company_name: LanzaTech Global, Inc.
- filed_at: 2025-06-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1843724/000162828025028932/0001628280-25-028932-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1843724/000162828025028932/amci-20250531.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-028932
- JSON: https://secwatch.observer/filing/0001628280-25-028932.json
- Plain text: https://secwatch.observer/filing/0001628280-25-028932.txt

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