X0306 4 2012-09-11 0 0001397187 lululemon athletica inc. LULU 0001043021 COSTIN ROANN 100 SUMMER STREET, 13TH FLOOR BOSTON MA 02110 1 0 0 0 Common Stock 2012-09-11 4 S 0 10000 76.2342 D 39126 D Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $76.15 to $76.32, inclusive. For all transactions reported in this Form 4 utilizing a weighted-average price, the reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. RoAnn Costin, by David Negus, Attorney-in-Fact 2012-09-13