LanzaTech Global, Inc. Announces Change in Independent Registered Public Accounting Firm

LanzaTech Global, Inc. (NASDAQ: LNZA) has filed a Form 8-K to announce a significant change in its independent registered public accounting firm, an event that can be highly relevant for shareholders and potentially affect the company’s share price.

Key Highlights from the Report

• Dismissal of Deloitte & Touche LLP: The company disclosed that it has dismissed its previous independent registered public accounting firm, Deloitte & Touche LLP (“Deloitte”), effective April 10, 2026.
• Engagement of BDO USA, P.C.: Simultaneously, LanzaTech’s Board of Directors, upon the recommendation and approval of its Audit Committee, ratified and approved the engagement of BDO USA, P.C. (“BDO”) as the new independent registered public accounting firm, also effective April 10, 2026.
• No Disagreements with Deloitte: During the company’s fiscal years ended December 31, 2025 and 2024, and through the interim period up to April 10, 2026, there were no disagreements (as defined in Item 304(a)(1)(iv) of Regulation S-K) between the company and Deloitte concerning accounting principles or practices, financial statement disclosure, or auditing scope or procedure.
• Material Weaknesses in Internal Controls:
  • The company previously identified material weaknesses in internal control over financial reporting:
    • For the fiscal years ended December 31, 2024: weaknesses related to accounting for complex transactions and estimates requiring significant judgment, as well as revenue recognition.
    • For the fiscal year ended December 31, 2025: deficiencies in internal controls over financial reporting, which were deemed material weaknesses associated with multiple components of the Committee of Sponsoring Organizations of the Treadway Commission (COSO) Internal Control – Integrated Framework, including control activities, monitoring, risk assessment, and information and communication.
  • These weaknesses were discussed with Deloitte and the Audit Committee, and Deloitte has been authorized to respond fully to inquiries from BDO regarding these matters.
  • Importantly, these material weaknesses did not result in any restatement of LanzaTech’s financial statements and did not give rise to any disagreements between the company and Deloitte.
• SEC Filing and Auditor Letter: LanzaTech provided Deloitte with a copy of the Form 8-K prior to filing with the SEC and has requested a letter from Deloitte stating whether they agree with the statements in the filing. This letter will be filed as an exhibit to an amendment to the Form 8-K within two business days of receipt, but no later than ten business days after the filing.
• No Consultations with BDO Prior to Appointment: Neither the company nor anyone on its behalf consulted with BDO during the fiscal years ended December 31, 2025 and 2024, or the interim period up to April 10, 2026, regarding (i) the application of accounting principles to a specified transaction or the type of audit opinion that might be rendered on the company’s financial statements, or (ii) any matter that was the subject of a disagreement or reportable event.

Why This Matters for Shareholders

• Change of Auditor: The appointment of a new independent auditor is a significant event. It could indicate a shift in the company’s financial reporting approach or a response to internal control challenges. Investors often scrutinize such changes, as they may impact the company’s financial transparency and future reporting.
• Internal Control Weaknesses: The disclosure of material weaknesses, even if not resulting in restatements, is important. It signals that the company is still addressing certain internal control issues. While management and the Audit Committee are engaged in remediation efforts, the market may react to ongoing risks related to financial reporting reliability.
• No Restatements or Disagreements: The absence of restatements and disagreements with Deloitte provides some reassurance to investors that the issues have not escalated; however, the control environment remains a focal point for improvement.
• Regulatory Compliance: The company’s proactive communication with both the SEC and its auditors reflects a commitment to compliance and transparency, which may help mitigate potential negative market reactions.

Details on Securities

• Common Stock (LNZA): Listed on The Nasdaq Stock Market LLC.
• Warrants to Purchase Common Stock (LNZAW): Also listed on The Nasdaq Stock Market LLC.

Disclaimer: This news article is for informational purposes only and does not constitute investment advice. Investors should consider their own circumstances and consult with their advisors before making any investment decisions. The information presented is based on the company’s SEC filings as of April 10, 2026, and may be subject to change. Neither the author nor this publication assumes any responsibility for actions taken based on this article.

View LanzaTech Global, Inc. Historical chart here