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Constellation Software Names COO Mark Miller President After Mark Leonard Resigns

The board elevated longtime COO Mark Miller to signal continuity in the company's succession plan.

Overview

  • Founder and president Mark Leonard resigned effective immediately for health reasons, the company said.
  • The board appointed Chief Operating Officer Mark Miller as president, and his other roles will remain unchanged.
  • Leonard will continue to serve as a director on Constellation’s board.
  • Chairman John Billowits wished Leonard a swift recovery, and Leonard expressed confidence in Miller and the executive team.
  • Constellation shares were down about 8% in early Toronto trading following the announcement; the stock trades as CSU on the TSX.