ROBERT M. PATTERSON

Corporate Board Profile

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AVIENT CORP

Filing Date Source Excerpt
2014-04-03 Executive Vice President and Chief Operating Officer of PolyOne since March 2012. Mr. Patterson served as PolyOne's Executive Vice President and Chief Financial Officer from January 2011 until March 2012 and as PolyOne's Senior Vice President and Chief Financial Officer from May 2008 until January 2011.
2015-04-03 President and Chief Executive Officer of PolyOne since May 2014. Mr. Patterson served as Executive Vice President and Chief Operating Officer of PolyOne from March 2012 until May 2014, as Executive Vice President and Chief Financial Officer from January 2011 until March 2012, and as PolyOne's Senior Vice President and Chief Financial Officer from May 2008 until January 2011.
2016-04-01 President and Chief Executive Officer of PolyOne since May 2014. Mr. Patterson served as Executive Vice President and Chief Operating Officer of PolyOne from March 2012 until May 2014.
2017-03-31 Chairman, President and Chief Executive Officer of PolyOne since May 2016. Mr. Patterson served as President and Chief Executive Officer of PolyOne from May 2014 until May 2016, as Executive Vice President and Chief Operating Officer from March 2012 until May 2014, as Executive Vice President and Chief Financial Officer from January 2011 until March 2012, and as PolyOne’s Senior Vice President and Chief Financial Officer from May 2008 until January 2011.
2018-03-29 Chairman, President and Chief Executive Officer of PolyOne... Prior to joining PolyOne, Mr. Patterson served in leadership roles at Novelis, Inc., and SPX Corporation, after starting his career at Arthur Andersen LLP.
2019-03-28 Chairman, President and Chief Executive Officer of PolyOne... prior executive experience in manufacturing and finance.
2020-03-30 Chairman, President and Chief Executive Officer of PolyOne... Prior to joining PolyOne, Mr. Patterson served in leadership roles at Novelis, Inc., and SPX Corporation, after starting his career at Arthur Andersen LLP.
2021-03-30 Chairman, President and Chief Executive Officer of Avient... Prior to joining Avient, Mr. Patterson served in leadership roles at Novelis, Inc. and SPX Corporation.
2022-03-29 Chairman, President and Chief Executive Officer of Avient... prior executive experience in finance and operations.
2023-03-29 Chairman, President and Chief Executive Officer of Avient... Prior to joining Avient, Mr. Patterson served in leadership roles at Novelis, Inc. and SPX Corporation.

GREIF, INC

Filing Date Source Excerpt
2021-01-12 Since May 2014, Mr. Patterson has served as President and Chief Executive Officer of Avient Corporation.
2022-01-14 Mr. Patterson was nominated to serve as a director based on his leadership, experience and judgment as a current chief executive officer and chairman of a publicly traded manufacturing company.
2023-01-13 Since May 2014, Mr. Patterson has served as President and Chief Executive Officer of Avient Corporation.
2024-01-16 From May 2014 to December 2023, Mr. Patterson served as President and Chief Executive Officer of Avient Corporation.
2025-01-10 From May 2014 to December 2023, Mr. Patterson served as President and Chief Executive Officer of Avient Corporation.

Data sourced from SEC filings. Last updated: 2026-02-03