13F-HR/A 1 sc13f909amend.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F FORM 13F COVER PAGE THIS FILING LISTS SECURITIES HOLDINGS REPORTED ON THE FORM 13F FILED ON NOVEMBER 16, 2009 PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT AND FOR WHICH THAT REQUEST WAS DENIED ON FEBRUARY 14, 2011. Report for the Calendar Year or Quarter Ended: September 30, 2009 Check here if Amendment [X]; Amendment Number: 1 This Amendment (check only one): [ ] is a restatement [X] adds new holdings entries Name and Address of Institutional Investment Manager Filing this Report: Wasatch Advisors, Inc. 150 Social Hall Avenue Salt Lake City, UT 84111 13F File Number: None The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists and tables are considered integral parts of this form. Person Signing this Report on behalf of Reporting Manager: Name: Daniel D. Thurber Title: Chief Compliance Officer, General Council Phone Number: 801-533-0777 Signature, Place and Date of Signing: Daniel D. Thurber, Salt Lake City, UT, February 16, 2011 Report Type (check only one): [X] 13F Holdings Report [ ] 13F Notice [ ] 13F Combination Report List of Other Managers Reporting for this Manager: None I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: None Form 13F Information Table Entry Total: 1 Form 13F Information Table Value Total: $2,518 List of Other Included Managers: N/A FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN ------------------------------ ---------------- --------- -------- -------- --- ---- ------- Life Sciences Research Inc. COM 532169109 2518 316270.00SH SOLE