MICHAEL D. LOCKHART

Corporate Board Profile

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NORFOLK SOUTHERN CORP

Filing Date Source Excerpt
2020-03-27 Mr. Lockhart served as Chairman of the Board, President and Chief Executive Officer of Armstrong World Industries, Inc.
2021-03-31 Mr. Lockhart served as Chairman of the Board, President and Chief Executive Officer of Armstrong World Industries, Inc., a leading global producer of flooring products and ceiling systems.
2022-03-31 Mr. Lockhart served as Chairman of the Board, President and Chief Executive Officer of Armstrong World Industries, Inc.
2023-03-31 Mr. Lockhart served as Chairman of the Board, President and Chief Executive Officer of Armstrong World Industries, Inc.

Data sourced from SEC filings. Last updated: 2025-07-01