08:15 AM EDT, 06/10/2025 (MT Newswires) -- Klotho Neurosciences ( KLTO ) shares were up 50% in recent Tuesday premarket activity, after the company said Monday that initial findings in preclinical studies showed the potential of elevating Klotho gene expression to reduce age-related organ degeneration.

Insmed ( INSM ) shares rose more than 23% after the biopharmaceutical company said its phase 2b trial evaluating the safety and efficacy of treprostinil palmitil inhalation powder achieved the primary endpoint and met all secondary efficacy endpoints.

Plug Power ( PLUG ) stock was up 12%, a day after Chief Financial Officer Paul Middleton purchased 650,000 shares at $1.0339 apiece.

United Natural Foods ( UNFI ) shares rose 4.7% after the company reported higher fiscal Q3 adjusted earnings and net sales from a year earlier.