0001181431-12-038176.txt : 20120627 0001181431-12-038176.hdr.sgml : 20120627 20120627164847 ACCESSION NUMBER: 0001181431-12-038176 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20120627 FILED AS OF DATE: 20120627 DATE AS OF CHANGE: 20120627 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Walker Paul Edward CENTRAL INDEX KEY: 0001553150 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-35587 FILM NUMBER: 12930043 MAIL ADDRESS: STREET 1: 1954 GREENSPRING DRIVE STREET 2: SUITE 600 CITY: TIMONIUM STATE: MD ZIP: 21093 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: TESARO, Inc. CENTRAL INDEX KEY: 0001491576 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 272249687 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1000 WINTER STREET, SUITE 3300 CITY: WALTHAM STATE: MA ZIP: 02451 BUSINESS PHONE: (339) 970-0900 MAIL ADDRESS: STREET 1: 1000 WINTER STREET, SUITE 3300 CITY: WALTHAM STATE: MA ZIP: 02451 FORMER COMPANY: FORMER CONFORMED NAME: Tesaro, Inc. DATE OF NAME CHANGE: 20100510 3 1 rrd349786.xml X0205 3 2012-06-27 1 0001491576 TESARO, Inc. TSRO 0001553150 Walker Paul Edward 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 1 0 0 0 /s/ Louis Citron, attorney-in-fact 2012-06-27 EX-24.1 2 rrd313877_354408.htm POWER OF ATTORNEY OF PAUL EDWARD WALKER rrd313877_354408.html 
POWER OF ATTORNEY
      KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints
 Charles W. Newhall III, Louis S. Citron, Eugene A. Trainor III, Timothy Schaller and Shawn Conway,
 and each of them, with full power to act without the others, his true and lawful attorney-in-fact, with full
 power of substitution, to sign any and all instruments, certificates and documents that may be necessary,
desirable or appropriate to be executed on behalf of himself as an individual or in his capacity as a direct or
indirect general partner, director, officer or manager of any partnership, corporation or limited liability
company, pursuant to section 13 or 16 of the Securities Exchange Act of 1934, as amended (the "Exchange
Act"), and any and all regulations promulgated thereunder, and to file the same, with all exhibits thereto,
and any other documents in connection therewith, with the Securities and Exchange Commission, and with
any other entity when and if such is mandated by the Exchange Act or by the Financial Industry Regulatory
Authority, granting unto said attorney-in-fact full power and authority to do and perform each and every act
and thing necessary, desirable or appropriate, fully to all intents and purposes as he might or could do in
person, thereby ratifying and confirming all that said attorney-in-fact, or his substitutes, may lawfully
do or cause to be done by virtue hereof.


IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 4th day of May, 2009.



					/s/ Paul Edward Walker

					Paul Edward Walker