0001193125-13-018375.txt : 20130122 0001193125-13-018375.hdr.sgml : 20130121 20130122083759 ACCESSION NUMBER: 0001193125-13-018375 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20121231 FILED AS OF DATE: 20130122 DATE AS OF CHANGE: 20130122 EFFECTIVENESS DATE: 20130122 FILER: COMPANY DATA: COMPANY CONFORMED NAME: FRONTIER CAPITAL MANAGEMENT CO LLC CENTRAL INDEX KEY: 0000351173 IRS NUMBER: 042715137 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-01185 FILM NUMBER: 13539035 BUSINESS ADDRESS: STREET 1: 99 SUMMER ST CITY: BOSTON STATE: MA ZIP: 02110 BUSINESS PHONE: 6172610777 MAIL ADDRESS: STREET 1: 99 SUMMER ST CITY: BOSTON STATE: MA ZIP: 02110 FORMER COMPANY: FORMER CONFORMED NAME: FRONTIER CAPITAL MANAGEMENT CO INC DATE OF NAME CHANGE: 19990326 FORMER COMPANY: FORMER CONFORMED NAME: FRONTIER CAPITAL MANAGEMENT CORP DATE OF NAME CHANGE: 19810306 13F-HR 1 d469932d13fhr.txt 13F-HR UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: December 31, 2012 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: Frontier Capital Management Co., LLC Address: 99 Summer Street, 19th Floor Boston, MA 02110 13F File Number: 28-01185 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: Mr. William J. Ballou Title: Chief Operating Officer & General Counsel Phone: (617) 261-0777 Signature, Place and Date of Signing: /S/ William J. Ballou Boston, MA January 17, 2013 ------------------------ ---------------------- ----------------------------- [Signature] [City, State] [Date] Report Type [X] 13 F HOLDINGS REPORT [_] 13 F NOTICE [_] 13 F COMBINATION REPORT I am signing this report as required by the Securities Exchange Act of 1934. SEC13F.LNS FRONTIER CAPITAL MANAGEMENT FORM 13F SUMMARY PAGE AS OF DATE: 12/31/12 RUN DATE: 01/02/13 04:32 A.M. REPORT SUMMARY: NUMBER OF OTHER INCLUDED MANAGERS: 0 FORM 13F INFORMATION TABLE ENTRY TOTAL: 315 FORM 13F INFORMATION TABLE VALUE TOTAL: $9,345,299,426.00 LIST OF OTHER INCLUDED MANAGERS: NO. 13F FILE NUMBER NAME

TITLE OF VALUE SHARES/ SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME OF ISSUER CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE A.O. Smith Corp. COM 831865209 66890 1060566 SH SOLE 616203 0 444363 Abiomed Inc. COM 003654100 6373 474156 SH SOLE 274640 0 199516 Abraxas Petroleum Corp. COM 003830106 3507 1601340 SH SOLE 1022240 0 579100 Accuride Corp. COM 00439T206 1818 566245 SH SOLE 495285 0 70960 ACE Ltd. COM H0023R105 3584 44910 SH SOLE 44910 0 0 Acme Packet Inc. COM 004764106 1859 84060 SH SOLE 84060 0 0 Adtran Inc. COM 00738A106 4780 244619 SH SOLE 155599 0 89020 Advanced Energy Industries Inc. COM 007973100 4705 340748 SH SOLE 298098 0 42650 Advent Software Inc. COM 007974108 25160 1176789 SH SOLE 784950 0 391839 Advisory Board Co. COM 00762W107 42182 901514 SH SOLE 523750 0 377764 Agnico-Eagle Mines Ltd. COM 008474108 20276 386510 SH SOLE 272390 0 114120 Akamai Technologies Inc. COM 00971T101 45138 1103350 SH SOLE 697680 0 405670 Alaska Air Group Inc. COM 011659109 37045 859704 SH SOLE 512370 0 347334 Albemarle Corp. COM 012653101 43474 699843 SH SOLE 423503 0 276340 Allegheny Technologies Inc. COM 01741R102 38894 1281104 SH SOLE 775360 0 505744 Alliance Data Systems Corp. COM 018581108 82514 570005 SH SOLE 336530 0 233475 Allied World Assurance Company Holding COM H01531104 96275 1221770 SH SOLE 692320 0 529450 Altera Corp. COM 021441100 77910 2265479 SH SOLE 1430819 0 834660 Altra Holdings Inc. COM 02208R106 8924 404737 SH SOLE 354212 0 50525 Ameresco Inc. Cl A COM 02361E108 6707 683698 SH SOLE 399144 0 284554 American International Group Inc. COM 026874784 2180 61760 SH SOLE 61760 0 0 Ametek Inc. COM 031100100 44475 1183785 SH SOLE 683376 0 500409 Amphenol Corp. Cl A COM 032095101 33064 511030 SH SOLE 294860 0 216170 Anadarko Petroleum Corp. COM 032511107 3247 43700 SH SOLE 43700 0 0 Apogee Enterprises Inc. COM 037598109 21090 879853 SH SOLE 630773 0 249080 Apple Inc. COM 037833100 8021 15073 SH SOLE 15073 0 0 Argo Group International Holdings Ltd. COM G0464B107 7734 230239 SH SOLE 201607 0 28632 Arris Group Inc. COM 04269Q100 14149 947079 SH SOLE 601588 0 345491 Arthur J. Gallagher & Co. COM 363576109 39527 1140750 SH SOLE 658410 0 482340 Aspen Insurance Holdings Ltd. COM G05384105 9660 301137 SH SOLE 263571 0 37566 Autoliv Inc. COM 052800109 17304 256781 SH SOLE 164482 0 92299 Avid Technology Inc. COM 05367P100 1295 170789 SH SOLE 113089 0 57700 B/E Aerospace Inc. COM 073302101 100276 2029884 SH SOLE 1246978 0 782906 Beacon Roofing Supply Inc. COM 073685109 2338 70244 SH SOLE 61361 0 8883 Bed Bath & Beyond Inc. COM 075896100 23291 416574 SH SOLE 239890 0 176684 Belden Inc. COM 077454106 114034 2534647 SH SOLE 1643056 0 891591 BioMarin Pharmaceutical Inc. COM 09061G101 4753 96597 SH SOLE 61407 0 35190 BlackRock Inc. COM 09247X101 4524 21885 SH SOLE 21885 0 0 Body Central Corp. COM 09689U102 2210 221442 SH SOLE 193962 0 27480 Bonanza Creek Energy Inc. COM 097793103 23719 853524 SH SOLE 595574 0 257950 Briggs & Stratton Corp. COM 109043109 4927 233744 SH SOLE 204544 0 29200 Broadcom Corp. COM 111320107 3254 97970 SH SOLE 97970 0 0 Brown-Forman Corp. Cl B COM 115637209 31536 498594 SH SOLE 284715 0 213879 Cabela's Inc. COM 126804301 17157 410950 SH SOLE 237280 0 173670 Cabot Corp. COM 127055101 18399 462400 SH SOLE 308038 0 154362 Cabot Microelectronics Corp. COM 12709P103 7144 201179 SH SOLE 128399 0 72780 Cabot Oil & Gas Corp. COM 127097103 50205 1009340 SH SOLE 637882 0 371458 Cadence Design Systems Inc. COM 127387108 77121 5708447 SH SOLE 3274150 0 2434297 Cameron International Corp. COM 13342B105 26228 464540 SH SOLE 268120 0 196420 CapitalSource Inc. COM 14055X102 32937 4345245 SH SOLE 2771125 0 1574120 Carlisle Cos. COM 142339100 54239 923060 SH SOLE 593890 0 329170 CarMax Inc. COM 143130102 16812 447850 SH SOLE 258640 0 189210 Carrizo Oil & Gas Inc. COM 144577103 69172 3306517 SH SOLE 2174891 0 1131626 Catamaran Corp COM 148887102 67836 1440260 SH SOLE 878818 0 561442 Celadon Group Inc. COM 150838100 8668 479715 SH SOLE 419607 0 60108 Celanese Corp. Series A COM 150870103 41071 922330 SH SOLE 566770 0 355560 Centene Corp. COM 15135B101 62634 1527670 SH SOLE 876480 0 651190 Cerner Corp. COM 156782104 18442 237934 SH SOLE 137450 0 100484 Cheesecake Factory Inc. COM 163072101 13922 425619 SH SOLE 247356 0 178263 Chico's FAS Inc. COM 168615102 137350 7440418 SH SOLE 4437769 0 3002649 CIBER Inc. COM 17163B102 2373 710538 SH SOLE 621568 0 88970 Cisco Systems Inc. COM 17275R102 3127 159130 SH SOLE 159130 0 0 Citrix Systems Inc. COM 177376100 32308 492350 SH SOLE 284130 0 208220 CLARCOR Inc. COM 179895107 29594 619372 SH SOLE 361742 0 257630 Clean Harbors Inc. COM 184496107 5982 108736 SH SOLE 67406 0 41330 Cogent Communications Group Inc. COM 19239V302 83564 3691002 SH SOLE 2379495 0 1311507 Cognizant Technology Solutions Corp. COM 192446102 4040 54680 SH SOLE 54680 0 0 Columbus McKinnon Corp. COM 199333105 4260 257849 SH SOLE 225734 0 32115 comScore Inc. COM 20564W105 16788 1218266 SH SOLE 720580 0 497686 Comstock Resources Inc. COM 205768203 4777 315920 SH SOLE 276380 0 39540 Concho Resources Inc. COM 20605P101 42521 527820 SH SOLE 304210 0 223610 CONMED Corp. COM 207410101 22465 803747 SH SOLE 465610 0 338137 Consol Energy Inc. COM 20854P109 7130 222130 SH SOLE 136130 0 86000 Constant Contact Inc. COM 210313102 24506 1724556 SH SOLE 1118352 0 606204 Continental Resources Inc. Oklahoma COM 212015101 69729 948829 SH SOLE 591064 0 357765 Cooper Cos. COM 216648402 129048 1395410 SH SOLE 888264 0 507146 Core Laboratories N.V. COM N22717107 13065 119520 SH SOLE 76200 0 43320 Cousins Properties Inc. COM 222795106 4883 584837 SH SOLE 511657 0 73180 Covance Inc. COM 222816100 119511 2068739 SH SOLE 1280179 0 788560 CRA International Inc. COM 12618T105 2244 113516 SH SOLE 99324 0 14192 Crown Castle International Corp. COM 228227104 105479 1461739 SH SOLE 822625 0 639114 Crown Holdings Inc. COM 228368106 61753 1677609 SH SOLE 1024904 0 652705 Cumberland Pharmaceuticals Inc. COM 230770109 3188 759104 SH SOLE 439640 0 319464 Cymer Inc. COM 232572107 40124 443702 SH SOLE 270986 0 172716 Cypress Semiconductor Corp. COM 232806109 29636 2733963 SH SOLE 1675250 0 1058713

Cytec Industries Inc. COM 232820100 62882 913585 SH SOLE 542183 0 371402 DaVita HealthCare Partners Inc. COM 23918K108 23077 208787 SH SOLE 120610 0 88177 Dendreon Corp. COM 24823Q107 7327 1385020 SH SOLE 801320 0 583700 DexCom Inc. COM 252131107 56444 4153363 SH SOLE 2525143 0 1628220 Dick's Sporting Goods Inc. COM 253393102 21884 481070 SH SOLE 277660 0 203410 Diebold Inc. COM 253651103 3255 106333 SH SOLE 93035 0 13298 Discovery Communications Inc. Series A COM 25470F104 54409 857104 SH SOLE 494640 0 362464 Dollar Tree Inc. COM 256746108 9519 234682 SH SOLE 149404 0 85278 Dril-Quip Inc. COM 262037104 21950 300482 SH SOLE 191602 0 108880 DTS Inc. COM 23335C101 13762 824071 SH SOLE 524156 0 299915 Dunkin' Brands Group Inc. COM 265504100 21144 637250 SH SOLE 363120 0 274130 DXP Enterprises Inc. COM 233377407 3396 69203 SH SOLE 60484 0 8719 Eagle Materials Inc. COM 26969P108 35669 609726 SH SOLE 407696 0 202030 Edwards Lifesciences Corp. COM 28176E108 23312 258537 SH SOLE 149200 0 109337 Electronic Arts Inc. COM 285512109 9601 661220 SH SOLE 422170 0 239050 Encore Wire Corp. COM 292562105 9948 328194 SH SOLE 253097 0 75097 Endurance Specialty Holdings Ltd. COM G30397106 9202 231839 SH SOLE 202779 0 29060 Everest Re Group Ltd. COM G3223R108 18851 171453 SH SOLE 108853 0 62600 Fairchild Semiconductor International COM 303726103 37321 2591742 SH SOLE 1905872 0 685870 Family Dollar Stores Inc. COM 307000109 33109 522140 SH SOLE 301340 0 220800 FEI Co. COM 30241L109 13664 246332 SH SOLE 142050 0 104282 Fidelity National Financial Inc. COM 31620R105 94248 4002059 SH SOLE 2451310 0 1550749 First Community Bancshares Inc COM 31983A103 8045 503739 SH SOLE 440875 0 62864 First Horizon National Corp. COM 320517105 3975 401083 SH SOLE 350929 0 50154 First Midwest Bancorp COM 320867104 6422 512910 SH SOLE 448730 0 64180 Flextronics International Ltd. COM Y2573F102 16373 2636529 SH SOLE 1682596 0 953933 Fluidigm Corp. COM 34385P108 5760 402500 SH SOLE 233070 0 169430 Flushing Financial Corp. COM 343873105 8295 540713 SH SOLE 473203 0 67510 FMC Corp. COM 302491303 107654 1839616 SH SOLE 1106848 0 732768 Fortinet Inc. COM 34959E109 9164 435980 SH SOLE 253200 0 182780 Foster Wheeler AG COM H27178104 11622 477879 SH SOLE 304669 0 173210 Furmanite Corp. COM 361086101 2583 480945 SH SOLE 421030 0 59915 Gartner Inc. COM 366651107 45829 995839 SH SOLE 575070 0 420769 General Motors Co. COM 37045V100 1712 59380 SH SOLE 59380 0 0 Gilead Sciences Inc. COM 375558103 3066 41740 SH SOLE 41740 0 0 Glatfelter COM 377316104 6375 364680 SH SOLE 319360 0 45320 Global Payments Inc. COM 37940X102 6694 147766 SH SOLE 94637 0 53129 Google Inc. Cl A COM 38259P508 4908 6938 SH SOLE 6938 0 0 Green Dot Corp. Cl A COM 39304D102 9928 813742 SH SOLE 505770 0 307972 Green Mountain Coffee Roasters Inc. COM 393122106 3918 94780 SH SOLE 94780 0 0 Greenway Medical Technologies Inc. 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Cl B COM 443510201 14806 174951 SH SOLE 111441 0 63510 IHS Inc. Cl A COM 451734107 36226 377350 SH SOLE 241710 0 135640 Illumina Inc. COM 452327109 66478 1195862 SH SOLE 764242 0 431620 IMAX Corp. COM 45245E109 81791 3638398 SH SOLE 2255760 0 1382638 Ingram Micro Inc. Shs -A- COM 457153104 34589 2044266 SH SOLE 1282664 0 761602 Insight Enterprises Inc. COM 45765U103 18284 1052631 SH SOLE 857661 0 194970 Insperity Inc. COM 45778Q107 36568 1123095 SH SOLE 656519 0 466576 Insulet Corp. COM 45784P101 64564 3042621 SH SOLE 1859837 0 1182784 Integrated Device Technology Inc. COM 458118106 5989 820428 SH SOLE 458728 0 361700 Inter Parfums Inc. COM 458334109 4895 251565 SH SOLE 220092 0 31473 Interface Inc. COM 458665304 5581 347294 SH SOLE 304027 0 43267 InterMune Inc. COM 45884X103 6994 721750 SH SOLE 460600 0 261150 International Rectifier Corp. COM 460254105 9756 550244 SH SOLE 350334 0 199910 International Speedway Corp. Cl A COM 460335201 5240 189524 SH SOLE 165734 0 23790 InterOil Corp. COM 460951106 104653 1884627 SH SOLE 1143030 0 741597 Intevac Inc. COM 461148108 4436 970760 SH SOLE 566953 0 403807 IntraLinks Holdings Inc. COM 46118H104 5392 873870 SH SOLE 530070 0 343800 Intuit Inc. COM 461202103 43507 731514 SH SOLE 422291 0 309223 iShares Russell 2000 Growth Index Fund COM 464287648 1553 16297 SH SOLE 16297 0 0 Itron Inc. COM 465741106 7485 168020 SH SOLE 106920 0 61100 J.B. Hunt Transport Services Inc. COM 445658107 3192 53460 SH SOLE 53460 0 0 Jabil Circuit Inc. COM 466313103 40322 2090288 SH SOLE 1348641 0 741647 Jack Henry & Associates Inc. COM 426281101 82259 2095241 SH SOLE 1205930 0 889311 Jacobs Engineering Group Inc. COM 469814107 6343 148996 SH SOLE 94896 0 54100 Jefferies Group Inc. COM 472319102 60874 3278089 SH SOLE 1960082 0 1318007 JetBlue Airways Corp. COM 477143101 8558 1496090 SH SOLE 953090 0 543000 Jones Lang LaSalle Inc. 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COM 981475106 91412 2220356 SH SOLE 1326589 0 893767 WSFS Financial Corp. COM 929328102 6919 163754 SH SOLE 143268 0 20486 Wyndham Worldwide Corp. COM 98310W108 47355 889970 SH SOLE 513840 0 376130 LINE TOTAL 315