Novo Nordisk has appointed Maziar Mike Doustdar as CEO, replacing Lars Fruergaard, to address recent market challenges.

Novo Nordisk named Maziar Mike Doustdar as its new chief executive on Tuesday, relying on an experienced company insider to revive sales and a share price hit by worries the maker of weight-loss drug Wegovy is falling behind in a race it started.

Partially a result, Novo Nordisk has steadily declined since last summer. Over the past year, NVO shares are down more than 57%. And since the beginning of 2025, the company’s share price has declined more than 35%. As of the time of this writing, NVO shares are down just over 20% this morning to $55.17 per share.