Apple Board of Directors Dow ( Board Of Directors ) member of the Apple, Inc. Board of Directors (since October 2015) and CDW Corporation Board of Directors (since March 2015).
Sources https://www.apple.com/leadership/ https://investors.dow.com/en/corporate-governance/board-of-directors/person-details/default.aspx?ItemId=b38323e8-10de-44ad-95ac-a8bd3c150f6f