X0202 4 2007-12-31 0 0001082554 UNITED THERAPEUTICS CORP UTHR 0001106578 ROTHBLATT MARTINE A 1 1 0 0 CEO Annual CEO Equity Incentive Award 97.65 2007-12-31 2007-12-31 4 A 0 582607 0 A 2007-12-31 2017-12-31 Common Stock 582607 1701723 D 2007 incentive stock option award made in accordance with the terms of reporting person's employment agreement, as amended, which grants the reporting person an annual award of stock options to purchase the number of shares of common stock that is equal to one-eighteenth of one percent of the increase in the Company's market capitalization from its average in December of each year based on the average closing bid price of the Company's stock for the month of December. Includes 1,468 shares issuable upon the exercise of stock options held by the reporting person's spouse. /s/ Paul Mahon under Power of Attorney 2007-12-31