13F-HR 1 rorer13f.txt United States Securities and Exchange Commission Washington, DC 20549 Form 13F Form 13F Cover Page Report for the Calendar Year or Quarter Ended: 6/30/08 Check here if Amendment: [ ] Amendment number: [ ] This Amendment (check only one): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager filing this Report: Name: Rorer Asset Management, LLC Address: Eight Tower Bridge 161 Washington St., Suite 1500 Conshohocken, PA 19428 13F File Number: 028-03869 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: Robert D. Leininger Title: Principal, Senior Equity Analyst, COO & CCO Phone: (484)530-4300 I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934. Signature, Place and Date of Signing: /s/ Robert D. Leininger ------------------------------------ Robert D. Leininger Conshohocken, PA August 6, 2008 Report Type (Check only one): [ X ] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.) [ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).) [ ] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

RORER ASSET MANAGEMENT, LLC 13F REPORT AS-OF ~~March~~June 3130, 2008 TITLE VOTING AUTHORITY OF VALUE SH/ PUT/ INVESTMENT SOLE SHARED NONE NAME OF ISSUER CLASS CUSIP (X $1000) SHARES PRN CALL DISCRETION MANAGERS (A) (B) (C) ----------------------------------------------------------------------------------------------------------------------- ----~~-------------------------------------------------------------------------------------------------------------------~~ AGCO CORP COMMON 001084102 $565.51 10,790 SH DEFINED 01 10,790 0 0 ACTIVISION INC NEW CO COMMON 004930202 $788.21 23,135 SH DEFINED 01 23,135 0 0 AMPHENOL CORP NEW CL COMMON 032095101 $1,~~326~~527.0672 3534,~~599~~040 SH DEFINED 01 3534,~~599~~040 0 0 ANADARKO PETE CORP COMMON 032511107 $~~504~~598.2472 8,000 SH DEFINED 01 8,000 0 0 APACHE CORP COMMON 037411105 $~~805~~926.3957 6,666 SH DEFINED 01 6,666 0 0 APOLLO GROUP INC CL A COMMON 037604105 $113,~~513~~222.7746 35298,~~041~~741 SH DEFINED 01 35298,~~041~~610 072 059 APPLE COMPUTER INC COMMON 037833100 $1720,~~309~~457.5355 ~~141~~122,~~126~~177 SH DEFINED 01 ~~141~~122,~~094~~119 32 026 APPLIED MATLS INC COMMON 038222105 $1615,~~025~~776.5817 ~~757~~826,~~024~~426 SH DEFINED 01 ~~756~~826,~~802~~023 222 0181 BANK OF NEW YORK MELL COMMON 064058100 $2625,~~655~~635.7961 ~~626~~677,~~699~~645 SH DEFINED 01 ~~626~~677,~~514~~312 185 0148 BAXTER INTL INC COMMON 071813109 $1213,~~771~~686.5114 ~~221~~214,~~592~~045 SH DEFINED 01 ~~221~~213,~~535~~943 57 045 BEBUCYRUS ~~AEROSPACE~~INTL INC ~~COM~~NEW COMMON ~~073302101~~118759109 $1,~~068~~845.6315 3025,~~576~~269 SH DEFINED 01 3025,~~576~~269 0 0 ~~BUCYRUS~~C ~~INTL~~H ~~INC~~ROBINSON ~~NEW~~WORLDWID COMMON ~~118759109~~12541W209 $21,~~377~~239.3934 2322,~~388~~599 SH DEFINED 01 2322,~~388~~599 0 0 CCVS HCORP ~~ROBINSON WORLDWID~~ COMMON ~~12541W209~~126650100 $124,~~301~~554.0332 23620,~~916~~517 SH DEFINED 01 23620,~~916~~212 0163 0142 ~~CVS~~CATERPILLAR ~~CORP~~INC COMMON ~~126650100~~149123101 $2320,~~932~~591.2039 ~~577~~278,~~313~~932 SH DEFINED 01 ~~577~~278,~~150~~794 ~~163~~76 062 ~~CATERPILLAR~~CERNER ~~INC~~CORP COM COMMON ~~149123101~~156782104 $291,~~115~~122.1599 ~~381~~24,~~267~~856 SH DEFINED 01 ~~381~~24,~~159~~856 ~~108~~0 0 CHEVRON CORPORATION COMMON 166764100 $1416,~~164~~282.4064 ~~177~~164,~~339~~253 SH DEFINED 01 ~~177~~164,~~295~~172 44 037 CISCO SYS INC COMMON 17275R102 $21,~~062~~122.7202 ~~828~~908,~~603~~087 SH DEFINED 01 ~~828~~907,~~354~~638 249 0200 CITRIX SYS INC COM COMMON 177376100 $~~2,528~~441.5159 8715,~~456~~015 SH DEFINED 01 8715,~~456~~015 0 0 CLEVELAND CLIFFS INC COMMON 185896107 $1,~~490~~516.2046 12,~~437~~723 SH DEFINED 01 12,~~437~~723 0 0 COGNIZANT TECHNLGY SL COMMON 192446102 $1527,~~309~~753.3745 ~~497~~853,~~981~~672 SH DEFINED 01 ~~497~~853,~~834~~273 ~~147~~219 0180 CONAGRA INC COMMON 205887102 $14,818.53 768,586 SH DEFINED 01 768,205 209 172 CONSOL ENERGY INC COMMON 20854P109 $1,~~141~~151.5035 1610,~~498~~246 SH DEFINED 01 1610,~~498~~246 0 0 CORNING INC COMMON 219350105 $2610,~~684~~399.1723 1451,~~064,126~~155 SH DEFINED 01 1450,~~063,808~~939 ~~318~~118 098 CYPRESS SEMICONDUCTOR COMMON 232806109 $1,~~258~~668.3908 5367,~~299~~397 SH DEFINED 01 5367,~~299~~397 0 0 DANAHER CORP SHS BEN COMMON 235851102 $2831,~~655~~036.6918 ~~385~~401,~~541~~508 SH DEFINED 01 ~~385~~401,~~432~~312 109 087 DEVON ENERGY CORP NEW COMMON 25179M103 $2114,~~039~~658.4035 ~~217~~121,~~144~~998 SH DEFINED 01 ~~217~~121,~~087~~939 5732 027 WALT DISNEY CO. COMMON 254687106 $~~222~~231.5504 7,~~092~~405 SH DEFINED 01 7,~~092~~405 0 0 DRESSER-RAND GROUP IN COMMON 261608103 $1,~~083~~734.1448 3544,~~224~~360 SH DEFINED 01 3544,~~224~~360 0 0 DRIL-QUIP INC COM COMMON 262037104 $1,~~118~~437.9547 2422,~~079~~817 SH DEFINED 01 2422,~~079~~817 0 0 E M C CORP MASS COMMON 268648102 $1718,~~878~~742.5985 1,~~146~~275,~~927~~909 SH DEFINED 01 1,~~146~~275,~~580~~286 347 0276 ~~EBAY~~EATON ~~INC~~CORP COM COMMON ~~278642103~~278058102 $16,~~971~~114.8940 ~~538~~189,~~366~~652 SH DEFINED 01 ~~538~~189,~~208~~558 ~~158~~51 043 ~~ELECTRONIC~~EBAY ~~ARTS~~INC COM COMMON ~~285512109~~278642103 $1715,~~081~~768.3086 ~~337~~577,~~632~~004 SH DEFINED 01 ~~337~~576,~~539~~721 93158 0125 ~~EURONET~~ELECTRONIC ~~WORLDWIDE~~ARTS ~~INC~~COM COMMON ~~298736109~~285512109 $~~939~~15,473.7362 48348,~~792~~268 SH DEFINED 01 48348,~~792~~098 093 077 EXPRESS SCRIPTS INC C COMMON 302182100 $2012,~~497~~493.9997 ~~322~~199,~~739~~193 SH DEFINED 01 ~~322~~199,~~643~~106 9647 040 FISERV INC COMMON 337738108 $2322,~~224~~773.7156 ~~476~~501,~~944~~960 SH DEFINED 01 ~~476~~501,~~814~~726 130 0104 FREEPORT MCMORAN COPP COMMON 35671D857 $1518,~~236~~616.2435 ~~172~~158,~~287~~856 SH DEFINED 01 ~~172~~158,~~245~~778 42 36 GEO GROUP INC COM COMMON 36159R103 $853.81 37,947 SH DEFINED 01 37,947 0 0 GAMESTOP CORP CLASS A COMMON 36467W109 $1,~~152~~406.4677 2234,~~287~~821 SH DEFINED 01 2234,~~287~~821 0 0 G A P INC COMMON 364760108 $1615,~~351~~611.1584 ~~767~~936,~~282~~571 SH DEFINED 01 ~~767~~936,~~027~~108 255 0208 GOLDMAN SACHS GROUP I COMMON 38141G104 $14,~~083~~653.9709 ~~107~~83,~~425~~781 SH DEFINED 01 ~~107~~83,~~403~~742 22 017 HALLIBURTON COMPANY COMMON 406216101 $2927,~~680~~241.2251 ~~739~~513,~~758~~306 SH DEFINED 01 ~~739~~513,~~536~~053 ~~222~~138 0115 HARLEY DAVIDSON INC COMMON 412822108 $76,~~442~~147.1909 ~~181~~169,~~199~~526 SH DEFINED 01 ~~181~~169,~~154~~443 45 038 ~~HOLOGIC~~HEALTHWAYS INC COM COMMON ~~436440101~~422245100 $101,~~244~~229.1355 ~~291~~41,~~355~~539 SH DEFINED 01 ~~291~~41,~~271~~539 840 0 ILLINOIS TOOL WORKS I COMMON 452308109 $2526,~~690~~649.5306 ~~526~~560,~~775~~922 SH DEFINED 01 ~~526~~560,~~620~~642 155 0125 ION GEOPHYSICAL CORP COMMON 462044108 $1,~~022~~223.3505 7470,~~083~~089 SH DEFINED 01 7470,~~083~~089 0 0 J.P. MORGAN CHASE & C COMMON 46625H100 $1014,~~887~~535.2179 ~~242~~423,~~713~~662 SH DEFINED 01 ~~242~~423,~~647~~448 66117 097 JANUS CAP GROUP INC COMMON 47102X105 $1,~~472~~610.3628 6360,~~273~~834 SH DEFINED 01 6360,~~273~~834 0 0 JOHNSON & JOHNSON COMMON 478160104 $2223,~~990~~892.2446 ~~358~~371,~~707~~342 SH DEFINED 01 ~~358~~371,~~604~~155 103 084 ~~JONES LANG LASALLE IN COMMON 48020Q107 $722.05 9,336 SH DEFINED 01 9,336 0 0~~ JOY GLOBAL INC COM COMMON 481165108 $2421,~~843~~625.4037 ~~385~~285,~~704~~183 SH DEFINED 01 ~~385~~285,~~595~~044 ~~109~~76 063 KAYDON CORP COMMON 486587108 $1,~~383~~664.8836 3132,~~516~~374 SH DEFINED 01 3132,~~516~~374 0 0 L-3 COMMUNICATIONS COMMON 502424104 $~~298~~256.8398 2,~~733~~828 SH DEFINED 01 2,~~733~~828 0 0 LAM RESEARCH CORP COM COMMON 512807108 $~~875~~1,310.3298 2236,~~902~~265 SH DEFINED 01 2236,~~902~~265 0 0 LAUDER ESTEE COS INC COMMON 518439104 $109,~~212~~596.4098 ~~214~~206,~~781~~621 SH DEFINED 01 ~~214~~206,~~725~~519 56 046 LEGG MASON INC COM COMMON 524901105 $919,~~756~~309.7516 ~~173~~443,~~907~~181 SH DEFINED 01 ~~173~~442,~~864~~960 43121 0100 LINCOLN NATL CORP IND COMMON 534187109 $119,~~012~~022.4463 ~~208~~199,~~761~~083 SH DEFINED 01 ~~208~~198,~~707~~985 54 044 LINEAR TECHNOLOGY COR COMMON 535678106 $2514,~~458~~603.5464 ~~800~~448,~~920~~388 SH DEFINED 01 ~~800~~448,~~693~~186 ~~227~~111 091 LOWES CO COMMON 548661107 $810,~~033~~205.2189 ~~300~~491,~~457~~854 SH DEFINED 01 ~~300~~491,~~372~~612 85133 0109 MSC INDL DIRECT INC C COMMON 553530106 $1,510.4069 3534,~~749~~248 SH DEFINED 01 3534,~~749~~248 0 0 MANPOWER INC COMMON 56418H100 $171,~~460~~045.4948 ~~310~~17,~~144~~951 SH DEFINED 01 ~~310~~17,~~065~~951 790 0 MCCORMICK & CO INC NO COMMON 579780206 $1,~~169~~066.8139 3129,~~642~~904 SH DEFINED 01 3129,~~642~~904 0 0 MORGAN STANLEY COMMON 617446448 $1310,~~251~~200.0019 ~~281~~282,~~877~~778 SH DEFINED 01 ~~281~~282,~~801~~641 76 061 NEW YORK CMNTY BANCOR COMMON 649445103 $1,~~164~~074.2492 6360,~~899~~253 SH DEFINED 01 6360,~~899~~253 0 0 NEWFIELD EXPL CO COMMON 651290108 $1,~~023~~197.1814 1918,~~360~~347 SH DEFINED 01 1918,~~360~~347 0 0 OPTIONSXPRESS HLDGS I COMMON 684010101 $1,~~248~~288.0199 6057,~~261~~699 SH DEFINED 01 6057,~~261~~699 0 0 ~~OSHKOSH TRUCK CORP CO COMMON 688239201 $1,130.19 31,152 SH DEFINED 01 31,152 0 0~~ PARKER HANNIFIN CORP COMMON 701094104 $1,~~701~~681.2195 2423,~~559~~583 SH DEFINED 01 2423,~~559~~583 0 0 ~~PEPSICO INC COMMON 713448108 $293.64 4,067 SH DEFINED 01 4,067 0 0~~ PHARMACEUTICAL PROD D COMMON 717124101 $1,~~504~~480.7683 3534,~~913~~518 SH DEFINED 01 3534,~~913~~518 0 0 PROASSURANCE CORP COM COMMON 74267C106 $1,~~440~~216.3332 2625,~~757~~282 SH DEFINED 01 2625,~~757~~282 0 0 PSYCHIATRIC SOLUTIONS COMMON 74439H108 $1,~~526~~787.0326 4447,~~989~~232 SH DEFINED 01 4447,~~989~~232 0 0 QUEST DIAGNOSTICS INC COMMON 74834L100 $2023,~~721~~043.0074 ~~449~~475,~~226~~429 SH DEFINED 01 ~~449~~475,~~095~~192 131 0106 RELIANCE STL & ALUM C COMMON 759509102 $1,~~393~~696.1399 2322,~~273~~013 SH DEFINED 01 2322,~~273~~013 0 0 SEI CORP COMMON 784117103 $1,~~135~~021.3955 4543,~~986~~433 SH DEFINED 01 4543,~~986~~433 0 0 ST JUDE MEDICAL INC COMMON 790849103 $1817,~~468~~929.2588 ~~417~~438,~~069~~599 SH DEFINED 01 ~~416~~438,~~953~~386 116 097 ~~SOTHEBY HLDGS INC CL COMMON 835898107 $987.00 34,140 SH DEFINED 01 34,140 0 0~~ SYNAPTICS INC COM COMMON 87157D109 $~~887~~1,765.1912 3746,~~152~~783 SH DEFINED 01 3746,~~152~~783 0 0 TD AMERITRADE HLDG CO COMMON 87236Y108 $1719,~~719~~502.0392 ~~990~~1,~~983~~078,137 SH DEFINED 01 ~~990~~1,~~712~~077,646 271 0220 TARGET CORP COMMON 87612E106 $1615,~~386~~222.2251 ~~319~~327,~~364~~420 SH DEFINED 01 ~~319~~327,~~273~~260 91 069 TEREX CORP NEW COM COMMON 880779103 $1815,~~219~~009.8292 ~~294~~292,~~698~~187 SH DEFINED 01 ~~294~~292,~~624~~053 74 060 THERMO FISHER SCIENTI COMMON 883556102 $17,924.6425 ~~315~~321,~~485~~617 SH DEFINED 01 ~~315~~321,~~395~~456 90 071 TIFFANY & CO NEW COM COMMON 886547108 $~~932~~860.0769 2221,~~277~~121 SH DEFINED 01 2221,~~277~~121 0 0 TIME WARNER COMMON 887317105 $23,640.09 1,597,358 SH DEFINED 01 1,596,555 440 363 VALERO ENERGY CORP CO COMMON 91913Y100 $1512,~~247~~642.4862 ~~305~~307,~~306~~023 SH DEFINED 01 ~~305~~306,~~222~~872 84 067 WAL MART STORES INC COMMON 931142103 $2428,~~858~~084.3562 ~~469~~499,~~334~~728 SH DEFINED 01 ~~469~~499,~~194~~473 140 115 WYETH COMMON 983024100 $223.73 4,665 SH DEFINED 01 4,665 0 0 ZIMMER HLDGS INC COMMON 98956P102 $1614,~~571~~657.9474 ~~222~~215,~~085~~390 SH DEFINED 01 ~~222~~215,~~026~~283 59 048 FOSTER WHEELER LTD SH COMMON G36535139 $1215,~~490~~419.0570 ~~220~~210,~~602~~797 SH DEFINED 01 ~~220~~210,~~549~~700 53 044 NABORS INDUSTRIES LTD COMMON G6359F103 $1834,~~043~~554.8291 ~~511~~701,~~413~~916 SH DEFINED 01 ~~511~~701,~~280~~592 ~~133~~178 0146 TRANSOCEAN INC COM NE COMMON G90073100 $1822,~~923~~040.4454 ~~159~~144,~~648~~632 SH DEFINED 01 ~~159~~144,~~609~~561 39 032 TYCO INTERNATIONAL LT COMMON G9143X208 $1822,~~383~~014.3001 ~~407~~549,~~671~~780 SH DEFINED 01 ~~407~~549,~~553~~503 ~~118~~152 0125 --------------------- -~~-----------------------~~ --------------------- ------~~------------------~~ TOTALS: $~~899~~940,~~624~~228.7029 2123,~~060~~673,~~668~~842 2123,~~055~~662,~~031~~881 56,~~637~~035 04,926 ====================== ===========================

FORM 13F SUMMARY PAGE Number of Other Included Managers: 2 Form 13F Information Table Entry Total: 87 Form 13F Information Table Value Total: $940,228 List of Other Included Managers: Provide a numbered list of the name(s) and 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report. No. 13F File Number Name ------------------- ---- 1 28-3326 Managers Investment Group LLC 2 28-04975 Affiliated Managers Group, Inc.

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