Constellation Software founder and President Mark Leonard has resigned for what the Canadian tech company said were health reasons. The Toronto-based company said its board appointed Mark Miller, ...

Constellation Software founder and President Mark Leonard has resigned for what the Canadian tech company said were unspecified health reasons. The Toronto-based company said its board appointed Mark ...

Constellation Software founder and President Mark Leonard has resigned for what the Canadian tech company said were unspecified health reasons. The Toronto-based company said its board appointed Mark ...

Mark Leonard resigned as president of Canada’s Constellation Software Inc. for health reasons, sending the shares to their lowest level in more than a year and prompting an analyst downgrade.

Mark Leonard, the notoriously media-shy founder of Constellation Software Inc., resigned as president of the Toronto-based tech juggernaut on Thursday due to health reasons, the firm said. Chief ...