Sheryl Kara Sandberg (born August 28, 1969)[2] is an American technology executive, philanthropist, and writer. Sandberg served as chief operating officer (COO) of Meta Platforms, a position from which she stepped down in August 2022.[3] She is also the founder of LeanIn.Org.[4] In 2008, she was made COO at Facebook, becoming the company's second-highest-ranking official.[5] In June 2012, she was