X0303 4 2010-05-12 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 2010-05-12 4 S 0 3500 5.2304 D 309692 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 $5.165 to $5.28, 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. The reporting persons end of period holdings includes 2,500 shares purchased under the Company's Employee Stock Purchase Plan on 4/30/10. Lance W. Bridges 2010-05-13