William Oberndorf, Ten Percent Owner at AppFolio, holds 1.87M shares in AppFolio (Ticker: APPF), holds 18.72M shares in Lamar Advertising (Ticker: LAMR), holds 9.57M shares in Oasis Petroleum (Ticker: OASPQ). Most recently, William Oberndorf Sold ― shares of AppFolio on Jun 21, 2017 for an estimated value of 6.88M.