2seventy bio, Inc. entered into share purchase agreement for private placement of 1,114,827 common shares at a price of $17.94 per share for gross proceeds of $19,999,996.38 on January 6, 2023. The transaction included participation from new investor, Regeneron Pharmaceuticals, Inc. The par value of shares is $0.0001 per share. The shares are issued at a premium of 50%.