X0303 4 2011-01-12 0 0001227930 ENTROPIC COMMUNICATIONS INC ENTR 0001417606 Bridges Lance 6290 SEQUENCE DRIVE SAN DIEGO CA 92121 0 1 0 0 VP and General Counsel Common Stock 2011-01-12 4 M 0 7500 1.99 A 69692 D Common Stock 2011-01-12 4 S 0 7500 13.3409 D 62192 D Non-Qualified Stock Option (right to buy) 1.99 2011-01-12 4 M 0 7500 0 D 2018-03-19 Common Stock 7500 48165 D The sales reported in the Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 26, 2009. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.26 to $13.53, per share. The reporting person undertakes to provide to Entropic Communications (the Company), any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. 18,055 of the options became exercisable on May 15, 2010. The remainder of the options become exercisable in equal monthly installments beginning June 19, 2010 until fully vested on March 19, 2012. Additionally, grant is subject to accelerated vesting on the terms and conditions set forth in such individual's Change of Control Agreement. Lance W. Bridges 2011-01-13