Novo Nordisk - which manufactures Wegovy, Ozempic and Saxenda - misreported, under-reported or did not disclose funding it gave to pharmacy firms, obesity charities and other professional bodies, according to the Prescription Medicines Code of Practice Authority (PMCPA).

The new treatment targets gut hormone GLP-1 but also mimics amylin, a hormone released by the pancreas that suppresses hunger.

Just how much Medicare price negotiations will negatively impact Novo Nordisk, though, depends on what the final negotiated prices for Ozempic, Wegovy, and Rybelsus will be. In Medicare's negotiations for 2026, the new prices achieved an average of 22% savings.

Novo Nordisk shares jumped on Friday as the Danish drugmaker said an experimental drug was able to reduce weight by as much as 22%.

Novo Nordisk's U.S.-listed shares are surging 9% Friday morning after the Danish drugmaker reported early stage results for its amycretin weight-loss drug.

On Friday, however, Novo Nordisk announced top-line results in yet another trial. While the results don't initially sound as good as those in the trials cited above, however, the speed at which they were achieved has investors cheering, and Novo Nordisk stock is up 7.7% through 10:50 a.m. Friday morning.

One of Novo Nordisk's next-generation obesity shots to follow up on the success of Wegovy helped patients lose 22% of their weight in 36 weeks, according to early-stage trial results on Friday, boosting the drugmaker's shares.

Novo Nordisk shares rose sharply after the Danish pharmaceutical giant said an experimental weight-loss shot helped patients lose 22% of their bodyweight in a clinical trial.

Novo Nordisk on Friday announced early-stage trial results for its amycretin obesity drug for subcutaneous injection, saying people with obesity or overweight treated with the drug achieved a 22% weight loss after 36 weeks.