13F-HR 1 llc1q2013.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2013 Amendment [ ]; Amendment Number: This Amendment: [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: RS Investment Management Co. LLC 388 Market Street, Ste. 1700 San Francisco, CA 94111 13F File Number: 028-12027 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: Matthew H. Scanlan Chief Executive Officer (415) 591-2700 Signature, Place, and Date of Signing: /s/ Matthew H. Scanlan San Francisco, CA May 8, 2013 Report Type: [ ] 13F HOLDINGS REPORT [ ] 13F NOTICE [X] 13F COMBINATION REPORT List of Other Managers Reporting for this Manager: 028-02098 Guardian Investor Services LLC 028-04395 Baillie Gifford Overseas Limited I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES AND EXCHANGE ACT OF 1934. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 1 Form 13F Information Table Entry Total: 301 Form 13F Information Table Value Total: 13,494,890 (x1000) List of Other Included Managers: 1. Guardian Investor Services LLC (028-02098)

Voting Authority ----------------------- Title of Value Shares/ Sh/ Put/ Invstmt Other Name of Issuer class CUSIP (x$1000) Prn Amt Prn Call Dscretn Managers Sole Shared None ------------------------------ ------------------- -------- ------------- ---- ------- --------- ------- ------- ------ Acadia Healthcare Co., Inc. COM 00404A109 13,531 460,380 SH Defined 1 432,380 28,000 Activision Blizzard, Inc. COM 00507V109 96,696 6,636,677 SH Defined 1 6,432,929 203,748 Acxiom Corp. COM 005125109 134,514 6,630,466 SH Defined 1 6,532,736 97,730 Aegerion Pharmaceuticals, Inc. COM 00767E102 12,556 311,258 SH Defined 1 292,383 18,875 Affiliated Managers Group, Inc. COM 008252108 5,573 36,290 SH Defined 1 36,290 0 Aflac, Inc. COM 001055102 28,261 543,274 SH Defined 1 543,274 0 Akamai Technologies, Inc. COM 00971T101 3,398 96,300 SH Defined 1 96,300 0 Alcatel-Lucent, ADR ADR 013904305 1,229 924,000 SH Defined 1 924,000 0 Alliance Data Systems Corp. COM 018581108 5,891 36,390 SH Defined 1 36,390 0 Allscripts Healthcare Solutions, In COM 01988P108 56,401 4,150,202 SH Defined 1 4,087,102 63,100 Altra Holdings, Inc. COM 02208R106 15,281 561,400 SH Defined 1 527,200 34,200 Amazon.com, Inc. COM 023135106 10,276 38,560 SH Defined 1 38,560 0 America Movil S.A.B de C.V., ADR, S ADR 02364W105 3,580 170,800 SH Defined 1 170,800 0 Ameriprise Financial, Inc. COM 03076c106 48,173 664,114 SH Defined 1 629,044 35,070 AMETEK, Inc. COM 031100100 6,495 149,792 SH Defined 1 149,792 0 Amicus Therapeutics, Inc. COM 03152W109 8,241 2,599,787 SH Defined 1 2,441,667 158,120 AMN Healthcare Services, Inc. COM 001744101 11,949 754,804 SH Defined 1 708,467 46,337 AmTrust Financial Services, Inc. COM 032359309 57,951 1,672,470 SH Defined 1 1,547,225 125,245 Annie's, Inc. COM 03600T104 19,948 521,390 SH Defined 1 480,370 41,020 AOL, Inc. COM 00184X105 142,029 3,690,019 SH Defined 1 3,602,633 87,386 Apple, Inc. COM 037833100 11,802 26,663 SH Defined 1 26,663 0 Aruba Networks, Inc. COM 043176106 26,024 1,051,900 SH Defined 1 972,070 79,830 Aspen Technology, Inc. COM 045327103 34,132 1,057,048 SH Defined 1 984,356 72,692 Associated Banc-Corp. COM 045487105 81,678 5,377,120 SH Defined 1 5,295,308 81,812 Atwood Oceanics, Inc. COM 050095108 29,164 555,080 SH Defined 1 535,380 19,700 Autodesk, Inc. COM 052769106 4,285 103,910 SH Defined 1 103,910 0 Avago Technologies Ltd. SHS Y0486S104 11,089 308,720 SH Defined 1 308,720 0 Avery Dennison Corp. COM 053611109 91,854 2,132,679 SH Defined 1 2,100,470 32,209 AZZ, Inc. COM 002474104 27,363 567,690 SH Defined 1 513,450 54,240 B/E Aerospace, Inc. COM 073302101 5,231 86,760 SH Defined 1 86,760 0 Beacon Roofing Supply, Inc. COM 073685109 37,466 969,110 SH Defined 1 896,040 73,070 Biogen Idec, Inc. COM 09062x103 6,015 31,180 SH Defined 1 31,180 0 BioMarin Pharmaceutical, Inc. COM 09061g101 16,440 264,060 SH Defined 1 264,060 0 Bonanza Creek Energy, Inc. COM 097793103 7,744 200,270 SH Defined 1 188,170 12,100 Bright Horizons Family Solutions, I COM 109194100 7,854 232,430 SH Defined 1 222,130 10,300 Bristow Group, Inc. COM 110394103 62,323 945,151 SH Defined 1 930,914 14,237 Broadcom Corp., Class A CL A 111320107 2,457 70,880 SH Defined 1 70,880 0 BroadSoft, Inc. COM 11133B409 15,349 579,872 SH Defined 1 552,108 27,764 Brookdale Senior Living, Inc. COM 112463104 12,487 447,890 SH Defined 1 447,890 0 Bruker Corp. COM 116794108 20,739 1,085,810 SH Defined 1 1,039,900 45,910 Cabela's, Inc. COM 126804301 36,965 608,170 SH Defined 1 584,990 23,180 Cabot Oil & Gas Corp. COM 127097103 230,602 3,410,767 SH Defined 1 3,354,550 56,217 Calpine Corp. COM 131347304 541,870 26,358,960SH Defined 1 25,732,747 626,213 CarMax, Inc. COM 143130102 3,067 73,550 SH Defined 1 73,550 0 CBOE Holdings, Inc. COM 12503M108 18,215 493,108 SH Defined 1 485,580 7,528 CBRE Group, Inc. COM 12504L109 31,701 1,255,468 SH Defined 1 1,183,100 72,368 Celgene Corp. COM 151020104 6,177 53,290 SH Defined 1 53,290 0 Cerner Corp. COM 156782104 2,994 31,600 SH Defined 1 31,600 0 Charles River Laboratories Internat COM 159864107 784 17,700 SH Defined 1 16,600 1,100 Church & Dwight Co., Inc. COM 171340102 4,261 65,930 SH Defined 1 65,930 0 Citrix Systems, Inc. COM 177376100 8,660 120,010 SH Defined 1 120,010 0 CLARCOR, Inc. COM 179895107 55,540 1,060,327 SH Defined 1 1,044,300 16,027 CME Group, Inc. COM 12572Q105 20,996 342,017 SH Defined 1 342,017 0 Comerica, Inc. COM 200340107 53,449 1,500,416 SH Defined 1 1,448,416 52,000 Companhia Brasileira de Distribuica ADR 20440T201 7,778 145,986 SH Defined 1 145,986 0 Companhia de Bebidas das Americas A ADR PFD 20441W203 3,919 92,590 SH Defined 1 92,590 0 Compass Minerals International, Inc COM 20451N101 350,530 4,453,146 SH Defined 1 4,377,812 75,334 Conceptus, Inc. COM 206016107 18,857 780,840 SH Defined 1 733,440 47,400 Concho Resources, Inc. COM 20605P101 412,904 4,245,605 SH Defined 1 4,155,570 90,035 Concur Technologies, Inc. COM 206708109 1,977 28,800 SH Defined 1 28,800 0 Core Laboratories N.V. COM N22717107 3,431 24,880 SH Defined 1 24,880 0 Costco Wholesale Corp. COM 22160k105 4,398 41,450 SH Defined 1 41,450 0 Covance, Inc. COM 222816100 59,035 794,339 SH Defined 1 769,739 24,600 Crown Holdings, Inc. COM 228368106 61,699 1,482,792 SH Defined 1 1,397,287 85,505 Cubist Pharmaceuticals, Inc. COM 229678107 22,623 483,190 SH Defined 1 446,270 36,920 Cummins, Inc. COM 231021106 37,544 324,190 SH Defined 1 313,790 10,400 CVS Caremark Corp. COM 126650100 40,782 741,625 SH Defined 1 741,625 0 Cyberonics, Inc. COM 23251P102 30,232 645,847 SH Defined 1 574,925 70,922 Dana Holding Corp. COM 235825205 54,241 3,042,139 SH Defined 1 2,996,305 45,834 Danaher Corp. COM 235851102 6,180 99,430 SH Defined 1 99,430 0 Denbury Resources, Inc. COM 247916208 378,368 20,327,279SH Defined 1 19,863,957 463,322 Dexcom, Inc. COM 252131107 15,523 928,398 SH Defined 1 871,823 56,575 Discovery Communications, Inc., Cla COM SER C 25470F302 8,176 117,575 SH Defined 1 117,575 0 Dolby Laboratories, Inc., Class A COM 25659T107 44,076 1,313,340 SH Defined 1 1,280,640 32,700 Dollar General Corp. COM 256677105 36,077 713,269 SH Defined 1 713,269 0 Dollar Tree, Inc. COM 256746108 28,672 592,040 SH Defined 1 557,840 34,200 Dorman Products, Inc. COM 258278100 27,015 726,020 SH Defined 1 665,140 60,880 Drew Industries, Inc. COM 26168l205 9,782 269,400 SH Defined 1 253,100 16,300 Dril-Quip, Inc. COM 262037104 25,817 296,170 SH Defined 1 284,970 11,200 DST Systems, Inc. COM 233326107 122,955 1,734,090 SH Defined 1 1,708,454 25,636 DSW, Inc., Class A CL A 23334L102 35,064 549,588 SH Defined 1 508,448 41,140 DXP Enterprises, Inc. COM 233377407 19,407 259,800 SH Defined 1 244,200 15,600 eBay, Inc. COM 278642103 11,685 215,510 SH Defined 1 215,510 0 Ecolab, Inc. COM 278865100 6,588 82,170 SH Defined 1 82,170 0 eHealth, Inc. COM 28238P109 50,986 2,905,756 SH Defined 1 2,864,880 40,876 Electronics for Imaging, Inc. COM 286082102 82,430 3,283,897 SH Defined 1 3,236,597 47,300 Elizabeth Arden, Inc. COM 28660G106 78,279 1,963,879 SH Defined 1 1,856,209 107,670 Endurance Specialty Holdings Ltd. COM G30397106 33,816 707,290 SH Defined 1 695,090 12,200 EOG Resources, Inc. COM 26875P101 67,853 529,810 SH Defined 1 520,750 9,060 EQT Corp. COM 26884L109 232,289 3,428,626 SH Defined 1 3,370,617 58,009 Equinix, Inc. COM 29444u502 7,153 33,070 SH Defined 1 33,070 0 Euronet Worldwide, Inc. COM 298736109 108,563 4,159,398 SH Defined 1 4,099,327 60,071 Everbank Financial Corp. COM 29977g102 14,181 920,856 SH Defined 1 906,993 13,863 Exact Sciences Corp. COM 30063P105 8,543 871,720 SH Defined 1 818,620 53,100 ExactTarget, Inc. COM 30064K105 20,793 893,552 SH Defined 1 848,092 45,460 Express Scripts Holding Co. COM 30219G108 2,312 40,109 SH Defined 1 40,109 0 Fabrinet SHS G3323L100 1,502 102,800 SH Defined 1 102,800 0 Facebook, Inc., Class A CL A 30303M102 7,040 275,210 SH Defined 1 275,210 0 Family Dollar Stores, Inc. COM 307000109 31,645 535,898 SH Defined 1 505,111 30,787 FEI Co. COM 30241L109 29,089 450,640 SH Defined 1 407,510 43,130 Fidelity National Financial, Inc., COM 31620r105 15,508 614,680 SH Defined 1 579,680 35,000 Fidelity National Information Servi COM 31620M106 40,168 1,013,835 SH Defined 1 982,485 31,350 Fifth Third Bancorp COM 316773100 17,579 1,077,800 SH Defined 1 1,077,800 0 Financial Engines, Inc. COM 317485100 10,888 300,609 SH Defined 1 282,544 18,065 Finisar Corp. COM 31787A507 958 72,600 SH Defined 1 72,600 0 First American Financial Corp. COM 31847R102 11,767 460,200 SH Defined 1 453,200 7,000 First Horizon National Corp. COM 320517105 134,143 12,560,233SH Defined 1 12,283,701 276,532 First Niagara Financial Group, Inc. COM 33582V108 39,958 4,509,964 SH Defined 1 4,441,364 68,600 FirstMerit Corp. COM 337915102 21,824 1,320,240 SH Defined 1 1,300,440 19,800 Fleetcor Technologies, Inc. COM 339041105 5,891 76,830 SH Defined 1 76,830 0 Flowserve Corp. COM 34354p105 6,687 39,870 SH Defined 1 39,870 0 FMC Corp. COM 302491303 172,069 3,017,172 SH Defined 1 2,934,010 83,162 Fomento Economico Mexicano SAB de C ADR 344419106 4,231 37,281 SH Defined 1 37,281 0 Fortinet, Inc. COM 34959E109 39,709 1,676,898 SH Defined 1 1,617,184 59,714 Francesca's Holdings Corp. COM 351793104 29,990 1,046,410 SH Defined 1 961,010 85,400 Franklin Resources, Inc. COM 354613101 20,148 133,600 SH Defined 1 133,600 0 Fusion-io, Inc. COM 36112J107 1,598 97,600 SH Defined 1 97,600 0 Geospace Technologies Corp. COM 37364X109 24,534 227,334 SH Defined 1 203,296 24,038 Gilead Sciences, Inc. COM 375558103 11,148 227,840 SH Defined 1 227,840 0 Global Payments, Inc. COM 37940X102 55,277 1,128,292 SH Defined 1 1,067,892 60,400 Globus Medical, Inc., Class A CL A 379577208 19,797 1,348,580 SH Defined 1 1,219,490 129,090 GNC Holdings, Inc., Class A CL A 36191G107 40,958 1,042,720 SH Defined 1 982,420 60,300 Goldcorp, Inc. COM 380956409 295,458 8,785,563 SH Defined 1 8,653,945 131,618 Google, Inc., Class A CL A 38259P508 15,126 19,050 SH Defined 1 19,050 0 Grand Canyon Education, Inc. COM 38526M106 32,174 1,267,200 SH Defined 1 1,166,250 100,950 Green Mountain Coffee Roasters, Inc COM 393122106 4,129 72,750 SH Defined 1 72,750 0 Grupo Aeroportuario del Sureste SAB ADR 40051E202 5,594 40,931 SH Defined 1 40,931 0 Hanesbrands, Inc. COM 410345102 47,247 1,037,030 SH Defined 1 977,130 59,900 Harman International Industries, In COM 413086109 68,571 1,553,026 SH Defined 1 1,530,978 22,048 Health Net, Inc. COM 42222G108 18,793 656,653 SH Defined 1 646,753 9,900 Heartland Payment Systems, Inc. COM 42235n108 34,939 1,059,733 SH Defined 1 975,604 84,129 HEICO Corp., Class A CL A 422806208 32,727 953,855 SH Defined 1 879,339 74,516 Hexcel Corp. COM 428291108 40,116 1,382,824 SH Defined 1 1,279,691 103,133 Hillshire Brands Co. COM 432589109 61,804 1,758,279 SH Defined 1 1,731,625 26,654 Hologic, Inc. COM 436440101 11,494 508,600 SH Defined 1 508,600 0 Honeywell International, Inc. COM 438516106 13,289 176,358 SH Defined 1 176,358 0 Horsehead Holding Corp. COM 440694305 39,773 3,655,597 SH Defined 1 3,599,967 55,630 HudBay Minerals, Inc. COM 443628102 69,692 7,259,607 SH Defined 1 7,129,991 129,616 Huntington Ingalls Industries, Inc. COM 446413106 84,883 1,605,758 SH Defined 1 1,582,758 23,000 Huron Consulting Group, Inc. COM 447462102 23,153 574,220 SH Defined 1 551,820 22,400 Hyperion Therapeutics, Inc. COM 44915N101 1,934 74,900 SH Defined 1 70,300 4,600 ICICI Bank Ltd. ADS ADR 45104G104 8,240 192,073 SH Defined 1 192,073 0 ICON PLC SHS G4705A100 14,363 444,800 SH Defined 1 417,800 27,000 Imax Corp. COM 45245e109 25,838 966,640 SH Defined 1 886,880 79,760 Infinity Pharmaceuticals, Inc. COM 45665G303 8,153 168,200 SH Defined 1 158,000 10,200 Infoblox, Inc. COM 45672H104 26,793 1,234,689 SH Defined 1 1,173,579 61,110 Informatica Corp. COM 45666Q102 2,575 74,700 SH Defined 1 74,700 0 Integrated Device Technology, Inc. COM 458118106 141,325 19,087,232SH Defined 1 18,802,931 284,301 Interactive Brokers Group, Inc., Cl COM 45841N107 54,096 3,677,831 SH Defined 1 3,626,161 51,670 Intermolecular, Inc. COM 45882D109 1,860 182,350 SH Defined 1 182,350 0 International Flavors & Fragrances, COM 459506101 59,223 772,438 SH Defined 1 727,908 44,530 InterXion Holding N.V. SHS N47279109 21,177 874,356 SH Defined 1 809,316 65,040 Intuit, Inc. COM 461202103 6,814 103,790 SH Defined 1 103,790 0 InvenSense, Inc. COM 46123D205 34,605 3,240,175 SH Defined 1 3,019,425 220,750 Iron Mountain, Inc. COM 462846106 77,793 2,163,150 SH Defined 1 2,044,862 118,288 iShares MSCI Emerging Markets Index ETF 464287234 8,855 206,993 SH Defined 1 206,993 0 ITT Corp. COM 450911201 46,645 1,640,711 SH Defined 1 1,615,941 24,770 Jazz Pharmaceuticals PLC SHS G50871105 37,247 666,190 SH Defined 1 642,030 24,160 Jones Lang LaSalle, Inc. COM 48020Q107 14,682 147,696 SH Defined 1 145,663 2,033 Kellogg Co. COM 487836108 38,006 589,880 SH Defined 1 589,880 0 KeyCorp COM 493267108 96,781 9,790,731 SH Defined 1 9,491,395 299,336 Kodiak Oil & Gas Corp. COM 50015Q100 13,022 1,432,561 SH Defined 1 1,345,120 87,441 Kosmos Energy Ltd. SHS G5315B107 88,867 7,864,322 SH Defined 1 7,721,691 142,631 KYTHERA Biopharmaceuticals, Inc. COM 501570105 8,707 357,410 SH Defined 1 335,610 21,800 Laredo Petroleum Holdings, Inc. COM 516806106 200,231 10,947,564SH Defined 1 10,758,897 188,667 Liberty Interactive Corp., Class A CL A 53071M104 102,993 4,851,273 SH Defined 1 4,683,453 167,820 LinkedIn Corp., Class A CL A 53578A108 6,736 38,260 SH Defined 1 38,260 0 LKQ Corp. COM 501889208 6,551 301,040 SH Defined 1 301,040 0 Lockheed Martin Corp. COM 539830109 53,015 549,265 SH Defined 1 549,265 0 LPL Financial Holdings, Inc. COM 50212V100 39,718 1,231,956 SH Defined 1 1,213,295 18,661 LSI Corp. COM 502161102 2,382 351,300 SH Defined 1 351,300 0 Magellan Health Services, Inc. COM 559079207 59,493 1,250,639 SH Defined 1 1,231,717 18,922 MarketAxess Holdings, Inc. COM 57060d108 20,184 541,136 SH Defined 1 490,062 51,074 Martin Marietta Materials, Inc. COM 573284106 319,979 3,143,704 SH Defined 1 3,073,082 70,622 MasterCard, Inc., Class A CL A 57636Q104 3,517 6,500 SH Defined 1 6,500 0 Mellanox Technologies Ltd. COM M51363113 2,698 48,600 SH Defined 1 48,600 0 Merck & Co., Inc. COM 58933y105 74,115 1,692,540 SH Defined 1 1,692,540 0 Meru Networks, Inc. COM 59047Q103 1,411 209,000 SH Defined 1 209,000 0 Michael Kors Holdings Ltd. SHS G60754101 1,322 23,280 SH Defined 1 23,280 0 Microsemi Corp. COM 595137100 46,698 2,015,439 SH Defined 1 1,855,394 160,045 Microsoft Corp. COM 594918104 5,100 178,260 SH Defined 1 178,260 0 Middleby Corp. COM 596278101 23,193 152,437 SH Defined 1 140,357 12,080 Mobile TeleSystems, ADR ADR 607409109 6,173 297,640 SH Defined 1 297,640 0 Mondelez International, Inc., Class CL A 609207105 64,788 2,116,570 SH Defined 1 2,116,570 0 MoneyGram International, Inc. COM 60935Y208 69,257 3,826,376 SH Defined 1 3,768,149 58,227 Motorola Solutions, Inc. COM 620076307 95,040 1,484,310 SH Defined 1 1,445,310 39,000 Movado Group, Inc. COM 624580106 17,063 509,026 SH Defined 1 460,446 48,580 Multimedia Games Holding Co., Inc. COM 625453105 4,775 228,775 SH Defined 1 211,457 17,318 Natural Grocers by Vitamin Cottage, COM 63888U108 11,220 497,557 SH Defined 1 467,077 30,480 NetSuite, Inc. COM 64118Q107 3,955 49,400 SH Defined 1 49,400 0 New Gold, Inc. COM 644535106 101,322 11,134,273SH Defined 1 10,940,976 193,297 News Corp., Class A CL A 65248E104 53,244 1,744,550 SH Defined 1 1,744,550 0 Nordstrom, Inc. COM 655664100 2,623 47,500 SH Defined 1 47,500 0 NPS Pharmaceuticals, Inc. COM 62936P103 12,019 1,179,444 SH Defined 1 1,107,626 71,818 O2Micro International Ltd., ADR ADR 67107w100 756 242,312 SH Defined 1 242,312 0 Oasis Petroleum, Inc. COM 674215108 8,977 235,800 SH Defined 1 221,480 14,320 Occidental Petroleum Corp. COM 674599105 343,661 4,385,108 SH Defined 1 4,322,774 62,334 Oil States International, Inc. COM 678026105 3,777 46,300 SH Defined 1 46,300 0 Old Dominion Freight Line, Inc. COM 679580100 31,546 825,822 SH Defined 1 795,791 30,031 Onyx Pharmaceuticals, Inc. COM 683399109 1,759 19,800 SH Defined 1 19,800 0 Orexigen Therapeutics, Inc. COM 686164104 9,087 1,453,900 SH Defined 1 1,365,200 88,700 Owens Corning COM 690742101 14,294 362,510 SH Defined 1 341,610 20,900 Pacira Pharmaceuticals, Inc. COM 695127100 14,966 518,567 SH Defined 1 487,167 31,400 Pall Corp. COM 696429307 18,083 264,493 SH Defined 1 251,522 12,971 Pandora Media, Inc. COM 698354107 2,079 146,800 SH Defined 1 146,800 0 Parker Hannifin Corp. COM 701094104 52,695 575,395 SH Defined 1 560,996 14,399 Petroleo Brasileiro S.A., ADR ADR 71654v408 10,658 643,234 SH Defined 1 643,234 0 Pfizer, Inc. COM 717081103 66,718 2,337,990 SH Defined 1 2,337,990 0 PICO Holdings, Inc. COM 693366205 54,922 2,473,966 SH Defined 1 2,422,069 51,897 PNC Financial Services Group, Inc. COM 693475105 19,325 290,600 SH Defined 1 290,600 0 Portfolio Recovery Associates, Inc. COM 73640Q105 33,314 262,479 SH Defined 1 241,598 20,881 POSCO, ADR ADR 693483109 6,458 87,608 SH Defined 1 87,608 0 Praxair, Inc. COM 74005P104 54,556 495,703 SH Defined 1 495,703 0 Procera Networks, Inc. COM 74269U203 1,681 141,400 SH Defined 1 141,400 0 Proofpoint, Inc. COM 743424103 13,992 829,870 SH Defined 1 787,380 42,490 Prudential Financial, Inc. COM 744320102 52,214 885,140 SH Defined 1 885,140 0 QEP Resources, Inc. COM 74733V100 62,087 1,949,963 SH Defined 1 1,913,981 35,982 Qlik Technologies, Inc. COM 74733T105 2,074 80,300 SH Defined 1 80,300 0 Quaker Chemical Corp. COM 747316107 13,407 227,160 SH Defined 1 208,770 18,390 QUALCOMM, Inc. COM 747525103 13,974 208,725 SH Defined 1 208,725 0 Questar Corp. COM 748356102 182,879 7,516,590 SH Defined 1 7,290,402 226,188 Range Resources Corp. COM 75281A109 243,554 3,005,353 SH Defined 1 2,956,673 48,680 RBC Bearings, Inc. COM 75524b104 27,541 544,714 SH Defined 1 492,987 51,727 RDA Microelectronics, Inc., ADR ADR 749394102 1,587 171,600 SH Defined 1 171,600 0 Red Hat, Inc. COM 756577102 2,821 55,800 SH Defined 1 55,800 0 RenaissanceRe Holdings Ltd. COM G7496G103 29,999 326,113 SH Defined 1 306,135 19,978 RigNet, Inc. COM 766582100 5,482 219,809 SH Defined 1 206,451 13,358 Roadrunner Transportation Systems, COM 76973Q105 21,938 953,825 SH Defined 1 895,636 58,189 Robert Half International, Inc. COM 770323103 4,074 108,540 SH Defined 1 108,540 0 Rosetta Resources, Inc. COM 777779307 201,331 4,231,422 SH Defined 1 4,112,117 119,305 Rubicon Technology, Inc. COM 78112T107 1,940 293,922 SH Defined 1 293,922 0 Salesforce.com, Inc. COM 79466l302 9,823 54,930 SH Defined 1 54,930 0 Sally Beauty Holdings, Inc. COM 79546E104 16,893 574,980 SH Defined 1 541,980 33,000 SAP AG, ADR ADR 803054204 2,899 36,000 SH Defined 1 36,000 0 Schlumberger Ltd. COM 806857108 19,962 266,554 SH Defined 1 266,554 0 Sealed Air Corp. COM 81211k100 35,158 1,458,220 SH Defined 1 1,436,220 22,000 Seattle Genetics, Inc. 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