X0303 4 2010-08-20 0 0001075531 PRICELINE COM INC PCLN 0001214607 MYLOD ROBERT J JR 800 CONNECTICUT AVENUE NORWALK CT 06854 0 1 0 0 Vice Chairman Common Stock 2010-08-20 4 S 0 499 297.26 D 104970 D Common Stock 2010-08-20 4 S 0 700 298.32 D 104270 D Common Stock 2010-08-20 4 S 0 200 299.18 D 104070 D Common Stock 2010-08-20 4 S 0 400 300.40 D 103670 D Common Stock 2010-08-20 4 S 0 201 301.74 D 103469 D 2008 Performance Share Units 12548 D 2010 Performance Share Units 12192 D Restricted Stock Units 19358 D The shares were sold pursuant to a sales plan, dated June 10, 2010, that complies with the requirements of Rule 10b5-1(c)(1) under the Securities and Exchange Act of 1934, as amended. Represents the weighted average sales price. The range of prices received for the reported transactions was $296.79-$297.58. Upon request by the Commission staff, priceline.com will provide full information regarding the number of shares sold at each separate price. Represents the weighted average sales price. The range of prices received for the reported transactions was $297.85-$298.80. Upon request by the Commission staff, priceline.com will provide full information regarding the number of shares sold at each separate price. Represents the weighted average sales price. The range of prices received for the reported transactions was $298.90-$299.45. Upon request by the Commission staff, priceline.com will provide full information regarding the number of shares sold at each separate price. Represents the weighted average sales price. The range of prices received for the reported transactions was $300.06-$300.95. Upon request by the Commission staff, priceline.com will provide full information regarding the number of shares sold at each separate price. Represents the weighted average sales price. The range of prices received for the reported transactions was $301.27-$302.21. Upon request by the Commission staff, priceline.com will provide full information regarding the number of shares sold at each separate price. Represents "target" number of performance share units outstanding. The actual number of shares issued, if any, could increase or decrease depending on certain performance factors. Represents "target" number of restricted stock units outstandning. The actual number of shares issued, if any, could decrease depending on certain performance factors. /s/ Robert J. Mylod, Jr. 2010-08-23