X0303 4 2011-03-09 0000799729 PAREXEL INTERNATIONAL CORP PRXL 0001224653 WINSCHEL JAMES F JR PAREXEL INTERNATIONAL CORPORATION 195 WEST STREET WALTHAM MA 02451 1 Senior VP & CFO Common Stock 2011-03-09 4 S 0 1500 24.56 D 15944 I Owned By Sons. Common Stock 160484 D This transaction was executed in multiple trades through a trade order executed by a broker-dealer at prices ranging from $24.55-$24.57. The price reported in this column reflects the weighted average sale price. For all transactions reported on this Form 4 utilizing a weighted average price, the reporting person will provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each price. The reporting person disclaims beneficial ownership of all securities held by his sons, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the shares for purposes of Section 16 or for any other purpose. /s/Douglas A. Batt, Attorney-in-fact 2011-03-10