Read the full story on Forbes: https://www.forbes.com/sites/tylerroush/2025/07/29/novo-nordisk-shares-plunge-21-toward-worst-day-in-40-years-as-ozempic-sales-expected-to-slow/ Subscribe to FORBES: https://www.youtube.com/user/Forbes?sub_confirmation=1 Fuel your success with Forbes. Gain unlimited access to premium journalism, including breaking news, groundbreaking in-depth reported stories, daily digests and more. Plus, members get a front-row seat at members-only events with leading thinkers