13F-HR 1 cwam13fhr.txt WANGER 13F-HR UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 Form 13F Form 13F Cover Page Report for the Quarter Ended March 31, 2009 Check here if Amendment [ ] This Amendment (check only one) [ ] is a restatement [ ] adds new holdings Institutional Investment Manager Filing this Report: Columbia Wanger Asset Management, L.P. 227 West Monroe Street Suite 3000 Chicago, IL 60606 Form 13F File Number: 028-03639 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: Bruce H. Lauer Senior Vice President 312-634-9230 Signature, Place, and Date of Signing: /s/ Bruce H. Lauer Chicago, IL May 5, 2009 Report Type: [X] 13F HOLDINGS REPORT [ ] 13F NOTICE [ ] 13F COMBINATION REPORT List of Other Managers Reporting for this Manager: None 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 310 Form 13F Information Table Value Total: 12,243,604,000 VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER ISSUE CLASS CUSIP (X1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ------------ --------- -------- --------- --- ---- ------- ------------ --------- ------------------ AFC ENTERPRISES INC COM 00104Q107 9552 2118000 SH SOLE 2000000 0 118000 AARON RENTS INC COM 002535201 36364 1364000 SH SOLE 1364000 0 0 ABERCROMBIE & FITCH CO CL A 002896207 104789 4402900 SH SOLE 4240000 0 162900 ACTIVISION BLIZZARD INC COM 00507V109 3138 300000 SH SOLE 300000 0 0 ACTUATE CORP COM 00508B102 7650 2500000 SH SOLE 2500000 0 0 ACUITY BRANDS INC COM 00508Y102 36350 1612700 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120000 MF GLOBAL LTD SHS G60642108 28635 6769600 SH SOLE 6769600 0 0 UTI WORLDWIDE INC ORD G87210103 25095 2100000 SH SOLE 2100000 0 0 WILLIS GROUP HOLDINGS LTD SHS G96655108 20856 948000 SH SOLE 849000 0 99000 ORTHOFIX INTL N V COM N6748L102 11112 600000 SH SOLE 600000 0 0 QIAGEN N V ORD N72482107 50577 3169000 SH SOLE 3009000 0 160000
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