The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ACADIA HEALTHCARE CO INC COM 00404A109 10,717 237,523 SH   SOLE   179,920 0 57,603
ACCELRYS INC COM 00430U103 2,521 202,327 SH   SOLE   105,007 0 97,320
ACUITY BRANDS INC COM 00508Y102 25,010 188,656 SH   SOLE   170,495 0 18,161
ADOBE SYSTEMS INC COM 00724F101 27,675 420,970 SH   SOLE   328,030 0 92,940
AFFILIATED MANAGERS GRP INC COM 008252108 16,255 81,255 SH   SOLE   78,650 0 2,605
AIRGAS INC COM 009363102 15,288 143,539 SH   SOLE   139,190 0 4,349
ALEXANDER & BALDWIN INC COM 014491104 12,885 302,759 SH   SOLE   292,575 0 10,184
ALEXANDRIA R E EQUITIES INC REIT 015271109 7,080 97,569 SH   SOLE   76,337 0 21,232
ALEXION PHARMACEUTICALS INC COM 015351109 401 2,638 SH   SOLE   1,145 0 1,493
ALLEGHANY CORP COM 017175100 31,825 78,122 SH   SOLE   68,604 0 9,518
ALLERGAN INC COM 018490102 631 5,085 SH   SOLE   2,210 0 2,875
ALTERA CORP COM 021441100 619 17,091 SH   SOLE   7,445 0 9,646
AMAZON.COM INC COM 023135106 732 2,177 SH   SOLE   894 0 1,283
AMERICAN FINANCIAL GROUP INC COM 025932104 39,866 690,802 SH   SOLE   614,562 0 76,240
AMETEK INC COM 031100100 18,717 363,507 SH   SOLE   351,185 0 12,322
AMPHENOL CORP COM 032095101 25,347 276,560 SH   SOLE   267,186 0 9,374
ANSYS INC COM 03662Q105 19,444 252,454 SH   SOLE   241,722 0 10,732
AON PLC COM G0408V102 446 5,290 SH   SOLE   5,290 0 0
APPLE INC COM 037833100 56,159 104,630 SH   SOLE   80,689 0 23,941
APPLIED INDUSTRIAL TECH INC COM 03820C105 10,382 215,207 SH   SOLE   173,364 0 41,843
APTARGROUP INC COM 038336103 9,770 147,800 SH   SOLE   119,533 0 28,267
ARGO GROUP INTL HOLDINGS LTD COM G0464B107 5,629 122,774 SH   SOLE   100,393 0 22,381
ASPEN TECHNOLOGY INC COM 045327103 28,072 662,709 SH   SOLE   588,079 0 74,630
ATHENAHEALTH INC COM 04685W103 4,420 27,584 SH   SOLE   22,035 0 5,549
ATWOOD OCEANICS COM 050095108 10,948 217,272 SH   SOLE   165,479 0 51,793
AVALONBAY COMMUNITIES INC REIT 053484101 524 3,993 SH   SOLE   1,740 0 2,253
AVNET INC COM 053807103 18,005 386,951 SH   SOLE   373,792 0 13,159
BANKUNITED INC COM 06652K103 9,580 275,520 SH   SOLE   215,510 0 60,010
BILL BARRETT CORP COM 06846N104 4,845 189,257 SH   SOLE   146,342 0 42,915
BIOGEN IDEC INC COM 09062X103 40,739 133,190 SH   SOLE   103,370 0 29,820
BLACK HILLS CORP COM 092113109 10,938 189,739 SH   SOLE   148,274 0 41,465
BOFI HOLDING INC COM 05566U108 6,465 75,395 SH   SOLE   55,480 0 19,915
BORGWARNER INC COM 099724106 21,046 342,382 SH   SOLE   324,678 0 17,704
BROOKFIELD ASSET MANAGEMENT COM 112585104 82,029 2,008,065 SH   SOLE   1,564,538 0 443,527
BUCKLE INC COM 118440106 7,120 155,460 SH   SOLE   119,461 0 35,999
BUFFALO WILD WINGS INC COM 119848109 12,709 85,350 SH   SOLE   67,019 0 18,331
CABELAS INC COM 126804301 40,891 624,202 SH   SOLE   560,725 0 63,477
CABOT CORP COM 127055101 7,270 123,087 SH   SOLE   99,202 0 23,885
CARLISLE COS INC COM 142339100 15,781 198,903 SH   SOLE   192,070 0 6,833
CARPENTER TECHNOLOGY CORP COM 144285103 10,179 154,134 SH   SOLE   120,673 0 33,461
CASEYS GENERAL STORES INC COM 147528103 14,593 215,898 SH   SOLE   168,623 0 47,275
CEPHEID INC COM 15670R107 29,527 572,444 SH   SOLE   512,676 0 59,768
CERNER CORP COM 156782104 10,455 185,862 SH   SOLE   174,591 0 11,271
CHEVRON CORP COM 166764100 1,104 9,287 SH   SOLE   4,045 0 5,242
CHURCH & DWIGHT INC COM 171340102 34,922 505,602 SH   SOLE   492,305 0 13,297
CITIGROUP INC COM 172967424 91,915 1,930,978 SH   SOLE   1,496,895 0 434,083
CITY NATIONAL CORP COM 178566105 26,874 341,391 SH   SOLE   330,817 0 10,574
COGNEX CORP COM 192422103 10,859 320,703 SH   SOLE   311,295 0 9,408
COGNIZANT TECH SOLUTIONS COM 192446102 828 16,362 SH   SOLE   7,130 0 9,232
COLFAX CORP COM 194014106 11,437 160,335 SH   SOLE   155,205 0 5,130
COLGATE-PALMOLIVE CO COM 194162103 978 15,080 SH   SOLE   8,460 0 6,620
COLUMBIA BANKING SYSTEM INC COM 197236102 13,735 481,605 SH   SOLE   375,168 0 106,437
COMCAST CORP COM 20030N101 95,270 1,903,873 SH   SOLE   1,478,005 0 425,868
COMERICA INC COM 200340107 28,156 543,548 SH   SOLE   526,440 0 17,108
COOPER COMPANIES INC COM 216648402 64,423 469,011 SH   SOLE   365,511 0 103,500
CORNERSTONE ONDEMAND INC COM 21925Y103 5,264 109,965 SH   SOLE   82,050 0 27,915
CORP OFFICE PPTYS TR INC REIT 22002T108 7,295 273,828 SH   SOLE   217,539 0 56,289
COSTCO WHOLESALE CORP COM 22160K105 972 8,703 SH   SOLE   3,875 0 4,828
COVANCE INC COM 222816100 19,837 190,927 SH   SOLE   185,046 0 5,881
CUBIST PHARMACEUTICALS INC COM 229678107 23,561 322,090 SH   SOLE   290,437 0 31,653
CULLEN/FROST BANKERS INC COM 229899109 49,603 639,797 SH   SOLE   568,277 0 71,520
CYPRESS SEMICONDUCTOR CORP COM 232806109 14,900 1,450,845 SH   SOLE   1,292,022 0 158,823
DANAHER CORP COM 235851102 1,242 16,564 SH   SOLE   7,556 0 9,008
DECKERS OUTDOOR CORP COM 243537107 7,871 98,715 SH   SOLE   78,760 0 19,955
DISCOVER FINANCIAL SVCS INC COM 254709108 92,757 1,594,030 SH   SOLE   1,235,860 0 358,170
DISNEY (WALT) CO COM 254687106 92,419 1,154,224 SH   SOLE   892,010 0 262,214
EASTGROUP PROPERTIES REIT 277276101 7,430 118,110 SH   SOLE   94,241 0 23,869
ECOLAB INC COM 278865100 57,527 532,707 SH   SOLE   412,055 0 120,652
EL PASO ELECTRIC CO COM 283677854 11,825 330,949 SH   SOLE   259,646 0 71,303
EMC CORP/MA COM 268648102 610 22,241 SH   SOLE   9,885 0 12,356
ENERSYS INC COM 29275Y102 30,237 436,387 SH   SOLE   386,621 0 49,766
ESSEX PROPERTY TRUST REIT 297178105 20,957 123,240 SH   SOLE   119,127 0 4,113
ESTERLINE TECHNOLOGIES CORP COM 297425100 25,558 239,890 SH   SOLE   213,511 0 26,379
FEI CO COM 30241L109 40,493 393,060 SH   SOLE   353,235 0 39,825
FIRST REPUBLIC BANK COM 33616C100 104,201 1,930,000 SH   SOLE   1,497,840 0 432,160
FISERV INC COM 337738108 876 15,448 SH   SOLE   6,840 0 8,608
FLUIDIGM CORP COM 34385P108 2,382 54,040 SH   SOLE   42,450 0 11,590
FMC CORP COM 302491303 21,132 276,017 SH   SOLE   262,878 0 13,139
FOREST LABORATORIES -CL A COM 345838106 817 8,851 SH   SOLE   4,670 0 4,181
FULLER (H. B.) CO COM 359694106 19,158 396,800 SH   SOLE   360,500 0 36,300
GATX CORP COM 361448103 27,012 397,941 SH   SOLE   365,195 0 32,746
GENESEE & WYOMING INC -CL A COM 371559105 15,668 160,994 SH   SOLE   155,656 0 5,338
GENOMIC HEALTH INC COM 37244C101 15,262 579,440 SH   SOLE   513,487 0 65,953
GOLDMAN SACHS GROUP INC COM 38141G104 949 5,791 SH   SOLE   2,514 0 3,277
GOOGLE INC COM 38259P508 69,460 62,323 SH   SOLE   48,165 0 14,158
GREEN DOT CORP COM 39304D102 8,713 446,140 SH   SOLE   432,200 0 13,940
HELIX ENERGY SOLUTIONS GROUP COM 42330P107 7,901 343,812 SH   SOLE   256,677 0 87,135
HELMERICH & PAYNE COM 423452101 35,869 333,477 SH   SOLE   259,697 0 73,780
HENRY (JACK) & ASSOCIATES COM 426281101 36,577 655,979 SH   SOLE   592,969 0 63,010
IDEX CORP COM 45167R104 8,301 113,890 SH   SOLE   93,130 0 20,760
ILLINOIS TOOL WORKS COM 452308109 96,264 1,183,624 SH   SOLE   918,425 0 265,199
ILLUMINA INC COM 452327109 37,506 252,295 SH   SOLE   243,288 0 9,007
INGREDION INC COM 457187102 8,737 128,335 SH   SOLE   101,247 0 27,088
INTL FLAVORS & FRAGRANCES COM 459506101 37,368 390,590 SH   SOLE   373,630 0 16,960
INTL RECTIFIER CORP COM 460254105 7,372 269,044 SH   SOLE   209,408 0 59,636
IPG PHOTONICS CORP COM 44980X109 6,342 89,224 SH   SOLE   70,183 0 19,041
ISIS PHARMACEUTICALS INC COM 464330109 14,423 333,799 SH   SOLE   302,490 0 31,309
ITC HOLDINGS CORP COM 465685105 30,273 810,514 SH   SOLE   739,479 0 71,035
ITT CORP COM 450911201 35,566 831,765 SH   SOLE   754,420 0 77,345
JACOBS ENGINEERING GROUP INC COM 469814107 22,457 353,655 SH   SOLE   335,098 0 18,557
JOHNSON & JOHNSON COM 478160104 1,496 15,230 SH   SOLE   6,480 0 8,750
K12 INC COM 48273U102 3,898 172,085 SH   SOLE   134,720 0 37,365
KENNAMETAL INC COM 489170100 22,351 504,544 SH   SOLE   457,015 0 47,529
KIRBY CORP COM 497266106 12,464 123,100 SH   SOLE   119,280 0 3,820
LEAPFROG ENTERPRISES INC COM 52186N106 4,085 544,716 SH   SOLE   403,455 0 141,261
LIFEPOINT HOSPITALS INC COM 53219L109 15,461 283,435 SH   SOLE   224,084 0 59,351
LINCOLN ELECTRIC HLDGS INC COM 533900106 13,903 193,072 SH   SOLE   151,954 0 41,118
LITTELFUSE INC COM 537008104 10,491 112,038 SH   SOLE   88,572 0 23,466
LKQ CORP COM 501889208 19,722 748,464 SH   SOLE   726,331 0 22,133
LOWE'S COMPANIES INC COM 548661107 1,036 21,193 SH   SOLE   9,160 0 12,033
MARKEL CORP COM 570535104 21,610 36,253 SH   SOLE   34,299 0 1,954
MASTEC INC COM 576323109 11,990 276,023 SH   SOLE   216,397 0 59,626
MDU RESOURCES GROUP INC COM 552690109 19,881 579,443 SH   SOLE   560,893 0 18,550
MEASUREMENT SPECIALTIES INC COM 583421102 8,798 129,670 SH   SOLE   103,355 0 26,315
MEDIDATA SOLUTIONS INC COM 58471A105 17,957 330,451 SH   SOLE   296,715 0 33,736
MERITAGE HOMES CORP COM 59001A102 4,460 106,503 SH   SOLE   83,893 0 22,610
METHANEX CORP COM 59151K108 26,956 421,577 SH   SOLE   379,617 0 41,960
MGIC INVESTMENT CORP/WI COM 552848103 5,110 599,820 SH   SOLE   476,800 0 123,020
MICROSOFT CORP COM 594918104 64,192 1,566,031 SH   SOLE   1,212,180 0 353,851
MID-AMERICA APT CMNTYS INC REIT 59522J103 8,077 118,308 SH   SOLE   89,594 0 28,714
MOOG INC -CL A COM 615394202 9,940 151,732 SH   SOLE   115,803 0 35,929
MWI VETERINARY SUPPLY COM 55402X105 12,670 81,417 SH   SOLE   62,083 0 19,334
NATIONAL FUEL GAS CO COM 636180101 62,669 894,755 SH   SOLE   760,965 0 133,790
NATIONAL OILWELL VARCO INC COM 637071101 65,135 836,461 SH   SOLE   648,891 0 187,570
NEOGEN CORP COM 640491106 6,740 149,952 SH   SOLE   114,943 0 35,009
NEWMARKET CORP COM 651587107 11,358 29,066 SH   SOLE   22,953 0 6,113
NEXTERA ENERGY INC COM 65339F101 758 7,926 SH   SOLE   3,965 0 3,961
NORTHEAST UTILITIES COM 664397106 536 11,774 SH   SOLE   5,200 0 6,574
NVR INC COM 62944T105 17,869 15,579 SH   SOLE   15,085 0 494
OCCIDENTAL PETROLEUM CORP COM 674599105 129,509 1,359,106 SH   SOLE   1,053,508 0 305,598
OCEANEERING INTERNATIONAL COM 675232102 22,563 313,980 SH   SOLE   303,585 0 10,395
OGE ENERGY CORP COM 670837103 77,173 2,099,374 SH   SOLE   1,764,740 0 334,634
OIL STATES INTL INC COM 678026105 15,707 159,296 SH   SOLE   154,722 0 4,574
OMNICELL INC COM 68213N109 8,602 300,572 SH   SOLE   233,200 0 67,372
OPEN TEXT CORP COM 683715106 15,949 334,286 SH   SOLE   322,942 0 11,344
ORBITAL SCIENCES CORP COM 685564106 7,845 281,197 SH   SOLE   220,545 0 60,652
OWENS & MINOR INC COM 690732102 21,165 604,197 SH   SOLE   541,879 0 62,318
PANDORA MEDIA INC COM 698354107 12,012 396,165 SH   SOLE   384,225 0 11,940
PAREXEL INTERNATIONAL CORP COM 699462107 11,437 211,445 SH   SOLE   166,485 0 44,960
PARKER-HANNIFIN CORP COM 701094104 723 6,039 SH   SOLE   2,635 0 3,404
PORTFOLIO RECOVRY ASSOC INC COM 73640Q105 7,402 127,925 SH   SOLE   98,520 0 29,405
POTLATCH CORP REIT 737630103 4,362 112,752 SH   SOLE   88,179 0 24,573
POWER INTEGRATIONS INC COM 739276103 9,183 139,605 SH   SOLE   108,605 0 31,000
PRECISION CASTPARTS CORP COM 740189105 805 3,186 SH   SOLE   1,383 0 1,803
PRICE (T. ROWE) GROUP COM 74144T108 800 9,716 SH   SOLE   4,315 0 5,401
PROOFPOINT INC COM 743424103 12,308 331,925 SH   SOLE   294,426 0 37,499
PROS HOLDINGS INC COM 74346Y103 4,642 147,305 SH   SOLE   112,129 0 35,176
PROSPERITY BANCSHARES INC COM 743606105 28,885 436,654 SH   SOLE   423,815 0 12,839
PTC INC COM 69370C100 12,460 351,786 SH   SOLE   280,964 0 70,822
PVH CORP COM 693656100 9,303 74,562 SH   SOLE   72,019 0 2,543
RAYONIER INC REIT 754907103 23,220 505,779 SH   SOLE   480,425 0 25,354
REDWOOD TRUST INC REIT 758075402 9,141 450,746 SH   SOLE   360,652 0 90,094
REGAL-BELOIT CORP COM 758750103 11,898 163,635 SH   SOLE   156,224 0 7,411
RELIANCE STEEL & ALUMINUM CO COM 759509102 65,076 920,967 SH   SOLE   761,339 0 159,628
ROPER INDUSTRIES INC/DE COM 776696106 62,744 469,959 SH   SOLE   364,585 0 105,374
ROSS STORES INC COM 778296103 666 9,308 SH   SOLE   4,090 0 5,218
RPM INTERNATIONAL INC COM 749685103 17,626 421,270 SH   SOLE   410,230 0 11,040
SCHLUMBERGER LTD COM 806857108 858 8,800 SH   SOLE   4,085 0 4,715
SCHWAB (CHARLES) CORP COM 808513105 105,042 3,843,483 SH   SOLE   2,979,115 0 864,368
SEATTLE GENETICS INC COM 812578102 8,913 195,626 SH   SOLE   189,569 0 6,057
SIERRA WIRELESS INC COM 826516106 6,150 281,735 SH   SOLE   220,005 0 61,730
SKYWORKS SOLUTIONS INC COM 83088M102 9,403 250,616 SH   SOLE   196,027 0 54,589
SNAP-ON INC COM 833034101 35,671 314,336 SH   SOLE   285,888 0 28,448
SPANSION INC COM 84649R200 8,608 494,144 SH   SOLE   477,704 0 16,440
SQUARE 1 FINANCIAL INC COM 85223W101 4,475 222,640 SH   SOLE   173,336 0 49,304
STERICYCLE INC COM 858912108 99,503 875,755 SH   SOLE   719,269 0 156,486
STIFEL FINANCIAL CORP COM 860630102 5,397 108,452 SH   SOLE   86,889 0 21,563
STRYKER CORP COM 863667101 784 9,627 SH   SOLE   4,220 0 5,407
SUPERIOR ENERGY SERVICES INC COM 868157108 11,287 366,931 SH   SOLE   284,075 0 82,856
SVB FINANCIAL GROUP COM 78486Q101 34,997 271,760 SH   SOLE   237,365 0 34,395
SYNTEL INC COM 87162H103 23,996 266,923 SH   SOLE   240,949 0 25,974
TAIWAN SEMICONDUCTOR MFG CO ADR 874039100 32,589 1,627,835 SH   SOLE   1,268,225 0 359,610
TCF FINANCIAL CORP COM 872275102 9,497 570,023 SH   SOLE   464,847 0 105,176
TEXAS CAPITAL BANCSHARES INC COM 88224Q107 7,690 118,415 SH   SOLE   93,450 0 24,965
THERMO FISHER SCIENTIFIC INC COM 883556102 51,118 425,130 SH   SOLE   329,190 0 95,940
TIBCO SOFTWARE INC COM 88632Q103 4,037 198,660 SH   SOLE   153,273 0 45,387
TORCHMARK CORP COM 891027104 25,660 326,043 SH   SOLE   314,698 0 11,345
TRACTOR SUPPLY CO COM 892356106 35,416 501,431 SH   SOLE   454,341 0 47,090
TRIMBLE NAVIGATION LTD COM 896239100 40,308 1,036,998 SH   SOLE   952,935 0 84,063
UGI CORP COM 902681105 42,145 924,036 SH   SOLE   827,050 0 96,986
UNDER ARMOUR INC COM 904311107 51,970 453,331 SH   SOLE   415,685 0 37,646
UNION PACIFIC CORP COM 907818108 87,329 465,355 SH   SOLE   360,496 0 104,859
UNIVERSAL FOREST PRODS INC COM 913543104 10,920 197,332 SH   SOLE   151,000 0 46,332
UNIVERSAL HEALTH SVCS INC COM 913903100 26,647 324,682 SH   SOLE   313,864 0 10,818
VERIZON COMMUNICATIONS INC COM 92343V104 1,105 23,232 SH   SOLE   10,800 0 12,432
VF CORP COM 918204108 606 9,790 SH   SOLE   4,100 0 5,690
VISA INC COM 92826C839 66,528 308,200 SH   SOLE   238,620 0 69,580
VOCUS INC COM 92858J108 4,257 319,390 SH   SOLE   249,990 0 69,400
WADDELL&REED FINL INC -CL A COM 930059100 40,461 549,596 SH   SOLE   486,096 0 63,500
WAGEWORKS INC COM 930427109 20,098 358,192 SH   SOLE   320,680 0 37,512
WALGREEN CO COM 931422109 109,066 1,651,770 SH   SOLE   1,280,625 0 371,145
WELLS FARGO & CO COM 949746101 1,271 25,553 SH   SOLE   11,285 0 14,268
WEST PHARMACEUTICAL SVSC INC COM 955306105 34,901 792,310 SH   SOLE   718,570 0 73,740
WHIRLPOOL CORP COM 963320106 46,968 314,250 SH   SOLE   244,870 0 69,380
WHITING PETROLEUM CORP COM 966387102 30,458 438,939 SH   SOLE   420,268 0 18,671
WILLIAMS-SONOMA INC COM 969904101 27,590 414,014 SH   SOLE   401,127 0 12,887
WOLVERINE WORLD WIDE COM 978097103 8,786 307,752 SH   SOLE   236,956 0 70,796
ZOETIS INC COM 98978V103 54,072 1,868,418 SH   SOLE   1,455,748 0 412,670