Mark Hardtke
Mark Hardtke

Mark Hardtke President

Joined Northern Trust



  • B.S. Degree in Accounting from Valparaiso University
  • M.B.A. Degree in Finance from DePaul University
  • Graduate of the National Trust School and Graduate Trust School at Northwestern University


Mark holds the ABA’s designation as a Certified Financial Services Counselor and is a Certified Trust and Financial Advisor.


Mark A. Hardtke, Senior Managing Director of Wealth Advisory Services for the Orange County office. He is also a Senior Vice President and Senior Fiduciary Officer for Trust and Estate Services covering the Orange County Region. He has been with Northern Trust for 32 years, beginning in Chicago and transferring to Orange County in 1989 to help establish the office in Orange County.

Community Involvement

Mark is President of Hoag Hospital’s 552 Club and is immediate Past President of the Orange County Youth Sports.