ALEXANDER A. KARSNER

Corporate Board Profile

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APPLIED MATERIALS INC /DE

Filing Date Source Excerpt
2013-01-22 Mr. Karsner served as Assistant Secretary for Energy Efficiency and Renewable Energy at the U.S. Department of Energy.
2014-01-21 Chief Executive Officer of Manifest Energy LLC.
2015-02-18 Alexander A. Karsner has served as Chief Executive Officer of Manifest Energy Inc., a clean energy infrastructure development and finance company.
2016-01-27 Alexander A. Karsner, Chief Executive Officer of Manifest Energy, Inc.
2017-01-26 Managing Partner, Emerson Collective
2018-01-25 Managing Partner, Emerson Collective
2019-01-24 Managing Partner, Emerson Collective
2020-01-30 Senior Strategist, X
2021-01-28 Senior Strategist, X
2023-01-25 Senior Strategist, X (parent company: Alphabet Inc.)
2024-01-24 Senior Strategist, X (parent company: Alphabet Inc.)

EXXON MOBIL CORP

Filing Date Source Excerpt
2022-04-07 Former Managing Partner, Emerson Collective; Senior Strategist, X
2023-04-13 Mr. Karsner’s energy policy and diplomacy experience, in addition to his background in commercializing breakthrough energy technologies.
2024-04-11 Mr. Karsner’s energy policy and diplomacy experience, in addition to his background in commercializing breakthrough energy technologies.
2025-04-07 Mr. Karsner’s energy policy and diplomacy experience, in addition to his background in commercializing breakthrough energy technologies, provides the Board with important perspectives.

Data sourced from SEC filings. Last updated: 2025-04-15