13F-HR 1 inftable.txt IRIDIAN ASSET MANAGEMENT LLC 13F-HR SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2009 Check here if Amendment { }: Amendment Number: This Amendment (check only one): [ ] is a restatement. [ ] adds new holdings entries. Report Type (Check only one.): [ ] 13F Holdings Report [ ] 13F Notice [X] 13F Combination Report Institutional Investment Manager Filing this Report: Name: Iridian Asset Management LLC Address: 276 Post Road West, Westport, CT 06880-4704 13F File Number: 028-06008 List of Other Managers Reporting for this Manager: Form 13F File Number Name 028-01190 Frank Russell Company The institutional investment manager filing this report and the person by whom it is signed hereby represents that the person signing this 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: Lane S. Bucklan Title: General Counsel and Chief Compliance Officer Phone: 203-341-9053 Signature, Place and date of Signing: /s/ Lane S. Bucklan Westport, CT May 6, 2009 ---------------------- ----------- ------------- [Signature] [City, State] [Date] I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934. Report Summary: Number of other included Managers: None Form 13F Information Table Entry Total: 119 Form 13F Information Table Value Total: $4,739,829,000 FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- 3PAR INC COM 88580F109 335 51022 SH SOLE 51022 ABBOTT LABORATORIES COM 002824100 10744 225250 SH SOLE 121990 103260 AEGEAN MARINE PETROLEUM NETW COM Y0017S102 2442 145816 SH SOLE 145816 AEROVIRONMENT INC COM 008073108 3323 158983 SH SOLE 158983 AGILENT TECHNOLOGIES INC COM 00846U101 108781 7077481 SH SOLE 4728924 2348557 AKAMAI TECHNOLOGIES INC COM 00971T101 200 10320 SH SOLE 10320 AMGEN INC COM 031162100 184176 3719220 SH SOLE 2485300 1233920 ARMSTRONG WORLD INDUSTRIES COM 04247X102 2009 182478 SH SOLE 135658 46820 AT&T INC COM 00206R102 14889 590850 SH SOLE 349090 241760 ATLAS AMERICA INC COM 049167109 51687 5907121 SH SOLE 3870898 2036223 ATMEL CORPORATION COM 049513104 74719 20583818 SH SOLE 13967520 6616298 BALL CORP COM 058498106 186439 4295839 SH SOLE 2733641 1562198 BANK OF NEW YORK MELLON CORP COM 064058100 23081 817030 SH SOLE 464230 352800 BAXTER INTL INC COM 071813109 86941 1697410 SH SOLE 1171591 525819 BECTON DICKINSON & CO COM 075887109 14538 216210 SH SOLE 125040 91170 BIOGEN IDEC INC COM 09062X103 34343 655158 SH SOLE 433043 222115 BLACKROCK INC COM 09247X101 3685 28340 SH SOLE 28340 BOEING CO. 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