X0303 4 2011-03-21 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 2011-03-21 4 S 0 300 446.47 D 41820 D Common Stock 2011-03-21 4 S 0 100 448.90 D 41720 D Common Stock 2011-03-21 4 S 0 100 451.72 D 41620 D Common Stock 2011-03-21 4 S 0 100 453.42 D 41520 D Common Stock 2011-03-21 4 S 0 200 455.10 D 41320 D Common Stock 2011-03-21 4 S 0 900 456.03 D 40420 D Common Stock 2011-03-21 4 S 0 300 457.16 D 40120 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 $445.91 - $446.90. 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 $454.75 - $455.44. 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 $455.75 - $456.51. 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 $456.80 - $457.66. 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. /s/ Robert J. Mylod, Jr. 2011-03-22