BRIAN X. TIERNEY

Corporate Board Profile

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FIRSTENERGY CORP

Filing Date	Source Excerpt
2024-03-29	Brian X. Tierney, 56, Director, President and Chief Executive Officer of FirstEnergy Corp., Director since 2023
2025-04-03	Brian X. Tierney Boar Chair, President, and Chief Executive Officer AGE: 57 FirstEnergy DIRECTOR SINCE 2023 POSITION, PRINCIPAL OCCUPATION AND BUSINESS EXPERIENCE: Board Chair, President, and Chief Executive Officer of the Company. He previously served as the global head of Portfolio Operations and Asset Management for Blackstone Infrastructure Partners. Earlier, he spent 23 years at Ohio-based American Electric Power Company, Inc., one of the United States’ largest investor-owned utilities. At American Electric Power he held numerous leadership positions, including executive vice president of Strategy and more than 11 years as Chief Financial Officer. KEY ATTRIBUTES, EXPERIENCE AND SKILLS: Mr. Tierney earned his bachelor’s degree from Boston College and an MBA from the University of Chicago. He also served as a United States Peace Corps volunteer in the Republic of the Philippines. With a career spanning 29 years in the electric utility industry, Mr. Tierney has developed extensive leadership, operational and commercial experience. Moreover, his strong financial acumen – across capital allocation, accounting, investor relations, planning and strategy, and risk management – and demonstrated ability to advance business strategies and drive value creation make him a valuable member of the FirstEnergy Board.

Filing Date

Source Excerpt

2024-03-29

Brian X. Tierney, 56, Director, President and Chief Executive Officer of FirstEnergy Corp., Director since 2023

2025-04-03

Brian X. Tierney Boar Chair, President, and Chief Executive Officer AGE: 57 FirstEnergy DIRECTOR SINCE 2023 POSITION, PRINCIPAL OCCUPATION AND BUSINESS EXPERIENCE: Board Chair, President, and Chief Executive Officer of the Company. He previously served as the global head of Portfolio Operations and Asset Management for Blackstone Infrastructure Partners. Earlier, he spent 23 years at Ohio-based American Electric Power Company, Inc., one of the United States’ largest investor-owned utilities. At American Electric Power he held numerous leadership positions, including executive vice president of Strategy and more than 11 years as Chief Financial Officer. KEY ATTRIBUTES, EXPERIENCE AND SKILLS: Mr. Tierney earned his bachelor’s degree from Boston College and an MBA from the University of Chicago. He also served as a United States Peace Corps volunteer in the Republic of the Philippines. With a career spanning 29 years in the electric utility industry, Mr. Tierney has developed extensive leadership, operational and commercial experience. Moreover, his strong financial acumen – across capital allocation, accounting, investor relations, planning and strategy, and risk management – and demonstrated ability to advance business strategies and drive value creation make him a valuable member of the FirstEnergy Board.

Data sourced from SEC filings. Last updated: 2026-03-05