La Caisse and Archimed Diagnostics buy French company Stago

The Caisse de Depot et Placement du Quebec (CDPQ), headquarters is seen in downtown Montreal, Wednesday, Aug.16, 2023. THE CANADIAN PRESS/Christinne Muschi

Quebec investment manager La Caisse and health-care private equity firm Archimed Diagnostics have bought Stago, a French company specialized in the analysis of blood coagulation issues.

Financial terms of the agreement with the founding Viret family were not immediately available.

Stago sells its products in 115 countries and last year had revenue of about $880 million.

Martin Longchamps, head of private equity and private credit at La Caisse, said Stago is a recognized leader in blood coagulation analysis.

Stago, founded in 1945, develops and manufactures hemostasis equipment and reagents.

Stago’s leadership team is taking a minority stake as part of the deal.

This report by The Canadian Press was first published April 29, 2026.