Williams Companies

WMB

EnergyNYQ$90.2B

WMB SEC filings last scanned 4 Oct 2026, 18:59 UTC

CEO Timeline

Chad J. ZamarinCurrent

Jul 2025 — Present(1y 3mo)

Chad J. Zamarin was appointed President and Chief Executive Officer of The Williams Companies, Inc., effective July 1, 2025, succeeding Alan S. Armstrong.

1 source filing — click to expand

Alan S. Armstrong

Jan 2011 — Jul 2025(14y 6mo)

Alan S. Armstrong was appointed President and Chief Executive Officer of The Williams Companies, Inc., effective January 3, 2011, succeeding Steven J. Malcolm.

transition to Executive Chairman of the Board

4 source filings — click to expand

Steven J. Malcolm

Jan 2002 — Jan 2011(9y)

replaced as President and Chief Executive Officer

3 source filings — click to expand