Lori Greiner is an American entrepreneur who appears as one of the Main Sharks on Shark Tank. Greiner appeared on four episodes of Season 3 of Shark Tank as a Guest Shark, and joined as a Main Shark starting on Season 4.
Greiner grew up in Chicago and did her undergraduate degree at Loyola University of Chicago.
Greiner has written one book: Invent It, Sell It, Bank It! Make Your Million-Dollar Idea Into a Reality.