Sandoz International is in the midst of a years-long effort to increase its gender diversity, and finding success. Here’s what’s working and what other firms can learn from Sandoz’s efforts. — By Jill Motley

Sandoz International and its parent company Novartis have spent the last few years focusing on concrete, large-scale efforts to increase their level of female talent. In a three-year push, the firm has dramatically shifted its talent profile and moved more women into key roles. Novartis even made Bloomberg’s 2021 global gender-equality index.

They have undertaken many initiatives toward this end, too many to cover in the full detail they deserve. Ho....