X0303 4 2010-09-01 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 2010-09-01 4 M 0 6666 20.28 A 110135 D Common Stock 2010-09-01 4 M 0 7334 25.56 A 117469 D Common Stock 2010-09-01 4 S 0 4408 294.60 D 113061 D Common Stock 2010-09-01 4 S 0 8092 295.46 D 104969 D Common Stock 2010-09-01 4 S 0 1500 296.23 D 103469 D 2008 Performance Share Units 12548 D 2010 Performance Share Units 12192 D Restricted Stock Units 19358 D Stock Options (right to buy) 20.28 2010-09-01 4 M 0 6666 0 D 2013-05-07 Common Stock 6666 0 D Stock Options (right to buy) 25.56 2010-09-01 4 M 0 7334 0 D 2011-12-07 Common Stock 7334 13499 D The shares were sold pursuant to a sales plan, dated March 4, 2009, that complies with the requirements of Rule 10b5-1(c)(1) under the Securities and Exchange Act of 1934, as amended. The existence of the plan, the total shares subject to the plan and the date of adoption of the plan were disclosed on page 27 of priceline.com's proxy statements filed with the Securities and Exchange Commission on April 30, 2009 and April 30, 2010. Represents the weighted average sales price. The range of prices received for the reported transactions was $294.02 - $295.01. 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 $295.02 - $296.00. 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 $296.05 - $296.51. 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 outstanding. The actual number of shares issued, if any, could decrease depending on certain performance factors. One-third of the stock options vested on the first anniversary of the date of grant, and the remaining stock options vested pro rata through May 7, 2006. One-third of the stock options vested on the first anniversary of the date of grant, and the remaining stock options vested pro rata through December 7, 2004. /s/ Robert J. Mylod, Jr. 2010-09-01