The chief of a 24-year-old, $7.5-billion-AUM*, employee-owned fund firm near Philadelphia is getting ready to ride off into the sunset.

Mark Clewett is preparing to retire from Conestoga Capital Advisors [profile], the Wayne, Pennsylvania-based asset manager's team confirms in a LinkedIn post. Clewett currently serves as managing partner and president of Conestoga, and his planned retirement date will be December 31.

Clewett did not immediately return a phone call and emails for comment.Fellow Conestoga managing partners Duane D'Orazio (co-founder and chief compliance officer and Joe Monahan (portfolio manager and research analyst) did not immediately return calls for comment.

"Mark has helped lead the firm through a period of significant growth and has been a trusted partner and driving force behind Conestoga’s continued success. Please join us in congratulating Mark on an outstanding career," the Conestoga team writes on LinkedIn.

Clewett rose to president of Conestoga in 2018 after joining the firm in 2006 as director of institutional sales and client service. Before then, his past stints included time with Delaware Investments and SEI Investments. He is an alumnus of Penn State University.

*As of September 30, 2025. 

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