Mintz, Levin, Cohn, Ferris, Glovsky and Popeo has added to its white-collar practice on the West Coast, bringing on a lawyer with experience at several Big Law firms, most recently Perkins Coie.

Sean Prosser made a move to the Boston-based firm as it grows its California presence. He was a partner at Seattle-based Perkins Coie, where he led the firm’s white-collar, government investigations and securities litigation practices in Southern California.