Story perspectives
Constellation Software President Resigns; Shares Drop 12%
9/26/2025
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Story summary
- Mark Leonard resigns as President of Constellation Software on September 25, 2025, due to health issues; Mark Miller, the Chief Operating Officer, becomes his successor.
- Leonard will remain on the Board but cease day-to-day involvement after 30 years of leadership.
- Shares fell 12% after the announcement, signaling investor concern over Leonard's departure. Miller aims to reassure investors and sustain growth.
