X0303 4 2010-03-04 0 0001075531 PRICELINE COM INC PCLN 0001214607 MYLOD ROBERT J JR 800 CONNECTICUT AVENUE NORWALK CT 06854 0 1 0 0 Vice Chairman 2010 Performance Share Unit Grant 2010-03-04 4 A 0 12192 A 12192 D Common Stock 2010-03-05 4 A 0 46000 0 A 135127 D Common Stock 2010-03-05 4 F 0 19758 233.12 D 115369 D Common Stock 2010-03-05 4 S 0 4775 234.52 D 110594 D Common Stock 2010-03-05 4 S 0 1550 235.40 D 109044 D Common Stock 2010-03-05 4 S 0 575 236.58 D 108469 D 2008 Performance Share Units 12548 D Restricted Stock Units 19358 D On March 4, 2010, Mr. Mylod was granted 12,192 priceline.com Incorporated (the "Company") performance share units, which represents the "target" number of performance share units. The exact number of shares to be issued to Mr. Mylod, which could be as many as three times the initial grant or, alternatively, no shares, will depend upon, among other things, the Company's financial performance. The shares, if any, will be issued on or about March 1, 2013 or earlier, in the event of, among other things, a termination of employment in certain circumstances. On March 5, 2010, performance share units, which were originally issued on March 5, 2007, vested pursuant to their terms and upon the satisfaction of the applicable performance criteria resulting in the issuance of 46,000 shares of priceline.com common stock. On March 5, 2010, 19,758 shares of priceline.com's common stock were withheld to satisfy certain tax withholding obligations related to the vesting of performance share units of Mr. Mylod. The shares were sold pursuant to a sales plan, dated September 10, 2007, 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 were $234.00-$234.98. 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 were $235.07-$235.61. 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. 2010-03-08