8-KLeadership ChangesRegulation FDExhibits & Filings

AMEREN CORP 8-K Report, Executive Changes (Dec 15, 2025)

Filed December 15, 2025For Securities:AEE

Summary

Ameren Corporation (AEE) has announced a significant addition to its Board of Directors with the election of Jamie L. Engstrom, effective January 1, 2026. Ms. Engstrom brings extensive experience as the Global Chief Information Officer and Senior Vice President of Global Information Systems at Caterpillar, Inc., a role that highlights her expertise in information technology and digital strategy. Her appointment is expected to enhance the Board's capabilities, particularly with her simultaneous appointment to the Audit and Risk Committee and the Cybersecurity and Digital Technology Committee, aligning with the increasing importance of these areas for public companies. Investors can view this as a strategic move to bolster oversight in critical operational and technological domains. Ms. Engstrom's background at a major industrial firm suggests a practical understanding of complex business operations and risk management. The company has confirmed that Ms. Engstrom was selected through the standard director nomination process and will be compensated according to the established non-employee director program, with details to be found in the company's proxy statement.

Key Highlights

  • 1Jamie L. Engstrom elected to Ameren's Board of Directors, effective January 1, 2026.
  • 2Ms. Engstrom appointed to the Audit and Risk Committee.
  • 3Ms. Engstrom appointed to the Cybersecurity and Digital Technology Committee.
  • 4Ms. Engstrom currently serves as Global CIO and SVP of Global Information Systems at Caterpillar, Inc.
  • 5No reportable business relationships between Ms. Engstrom and Ameren for 2024 or 2025.
  • 6The press release announcing the appointment was issued on December 15, 2025.
  • 7Ms. Engstrom will participate in the standard non-employee director compensation program.

Frequently Asked Questions

Jamie L. Engstrom is the Global Chief Information Officer and Senior Vice President of Global Information Systems at Caterpillar, Inc. She has a long history in information technology leadership roles at Caterpillar since 1999, including serving as Chief Information Officer for Caterpillar Financial Services Corporation from 2018-2020.

Ms. Engstrom's appointment to the Audit and Risk Committee and the Cybersecurity and Digital Technology Committee is significant as it brings her extensive IT and information systems expertise directly into oversight roles for critical areas of the company's operations, risk management, and digital strategy.

Ms. Engstrom will be compensated under Ameren's standard non-employee director compensation program. Further details regarding this program are available in Ameren's proxy statement filed on March 25, 2025.

Ameren has stated that Ms. Engstrom had no business relationships with the company or its subsidiaries in 2024 or up to the date of the filing in 2025 that would require reporting under SEC Regulation S-K, Item 404(a).