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SEC data last refreshed 13 May 2026, 23:38 UTC
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3M Co (MMM) CEO History | CEO Tracker
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3M Co
MMM
Industrials
NYQ
$78.0B
MMM SEC filings last scanned 13 May 2026, 22:50 UTC
CEO Timeline
William M. Brown
Current
May 2024 — Present
(2y)
William M. Brown was appointed CEO of 3M Company, effective May 1, 2024, succeeding Michael F. Roman.
2 source filings — click to expand
Michael F. Roman
Jul 2018 — May 2024
(5y 10mo)
Michael F. Roman was appointed Chief Executive Officer of 3M Company, effective July 1, 2018, succeeding Inge G. Thulin.
transitioned to executive chairman role
4 source filings — click to expand
Inge G. Thulin
Feb 2012 — Jul 2018
(6y 5mo)
Inge G. Thulin was appointed President and Chief Executive Officer of 3M Company effective February 24, 2012, succeeding George W. Buckley.
transition to executive chairman
5 source filings — click to expand
George W. Buckley
Dec 2005 — Feb 2012
(6y 2mo)
George W. Buckley was appointed Chief Executive Officer and President of 3M, effective December 6, 2005, succeeding interim CEO Robert S. Morrison.
stepped down from CEO role to become executive Chairman; full retirement from company June 1, 2012
4 source filings — click to expand
Robert S. Morrison
Interim
Jun 2005 — Dec 2005
(6mo)
Robert S. Morrison was named interim Chairman and Chief Executive Officer of 3M Company, effective immediately on June 30, 2005.
end of interim CEO term
2 source filings — click to expand
W. James McNerney, Jr.
Since at least Mar 2005 — Jun 2005
(3mo)
resignation
1 source filing — click to expand