Pfizer Inc (NYSE:PFE) shares are trading higher Wednesday, moving in sympathy with mRNA cancer vaccine-related companies after Merck & Co Inc (NYSE:MRK) and Moderna Inc (NASDAQ:MRNA) announced that their combination therapy of intismeran autogene and Keytruda showed positive recurrence-free survival results in melanoma patients.

BioNTech stock rises as Merck and Moderna report positive cancer vaccine data, highlighting its individualized mRNA cancer therapies.

Pfizer Inc (NYSE:PFE) shares are trading higher Wednesday, moving in sympathy with mRNA cancer vaccine-related companies after Merck & Co Inc (NYSE:MRK) and Moderna Inc…

Healthcare stocks saw mixed after-hours moves, with Moderna and Merck cooling after explosive gains on positive cancer trial results.