Shares of Pfizer Inc. PFE, -0.95% gained 0.1% in premarket trading on Friday after the drugmaker said it is requesting a regulatory change to the storage requirements for the COVID-19 vaccine it developed with BioNTech SE BNTX, -0.80%. BioNTech’s stock was down 0.8%. The companies said Friday they have new data showing their vaccine is still stable when stored in pharmaceutical freezers and refrigerators for up to two weeks, between the temperatures of negative 13 degrees Fahrenheit and 5 degrees Fahrenheit. Right now their vaccine must be stored in ultra-low temperature freezers between the temperatures of negative 112 degrees Fahrenheit and negative 76 degrees Fahrenheit. “The data submitted may facilitate the handling of our vaccine in pharmacies and provide vaccination centers an even greater flexibility,” BioNTech CEO Ugur Sahin said in a news release. Over the past 12 months, Pfizer’s stock has gained 0.7%, shares of BioNTech have soared 249.3%, and the broader S&P 500 SPX, -0.44% is up 16.3%.
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