X0306 4 2013-08-13 0 0001091171 BLUE NILE INC NILE 0001287613 VADON MARK C C/O BLUE NILE, INC. 411 FIRST AVENUE S, STE 700 SEATTLE WA 98104 1 0 0 0 Common Stock 2013-08-13 4 M 0 585 30.00 A 131353 D Common Stock 2013-08-13 4 S 0 585 38.5184 D 130768 D Common Stock 2013-08-14 4 M 0 1784 30.00 A 132552 D Common Stock 2013-08-14 4 S 0 1784 38.5773 D 130768 D Common Stock 2013-08-15 4 M 0 32009 30.00 A 162777 D Common Stock 2013-08-15 4 S 0 32009 38.5012 D 130768 D Stock Options (Right to Buy) 30.00 2013-08-13 2013-08-13 4 M 0 585 D 2014-07-26 Common Stock 585 179415 D Stock Options (Right to Buy) 30.00 2013-08-14 2013-08-14 4 M 0 1784 D 2014-07-26 Common Stock 1784 177631 D Stock Options (Right to Buy) 30.00 2013-08-15 2013-08-15 4 M 0 32009 D 2014-07-26 Common Stock 32009 145622 D Represents the weighted average sale price. The highest price at which shares were sold was $38.56 and the lowest price at which shares were sold was $38.50. Represents the weighted average sale price. The highest price at which shares were sold was $38.71 and the lowest price at which shares were sold was $38.50. Represents the weighted average sale price. The highest price at which shares were sold was $38.58 and the lowest price at which shares were sold was $38.40. 25% of the option shares vest on August 26, 2005 and one-forty-eighth of the option shares vest in equal monthly installments over the following thirty-six months. Not applicable. /s/ Lauren Neiswender, Power of Attorney 2013-08-15