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
ACE Limited COM H0023R105 234 2,000 SH   SOLE   2,000 0 0
ANSYS, Inc. COM 03662Q105 38,157 412,510 SH   SOLE   354,085 0 58,425
Aceto Corporation COM 004446100 24,838 920,625 SH   SOLE   657,225 0 263,400
Actuant Corporation Class A COM 00508X203 63,224 2,638,725 SH   SOLE   1,979,435 0 659,290
Advance Auto Parts, Inc. COM 00751Y106 27,549 183,040 SH   SOLE   156,905 0 26,135
Advisory Board Company COM 00762W107 272 5,490 SH   SOLE   4,690 0 800
Align Technology, Inc. COM 016255101 34,311 521,050 SH   SOLE   446,750 0 74,300
Allied World Assurance Company COM H01531104 149,288 4,014,195 SH   SOLE   3,100,880 0 913,315
American International Group, COM 026874784 384 6,200 SH   SOLE   6,200 0 0
Aptargroup, Inc. COM 038336103 36,736 505,655 SH   SOLE   433,720 0 71,935
Argo Group International Holdi COM G0464B107 57,417 959,516 SH   SOLE   683,386 0 276,130
Arthur J. Gallagher & Co. COM 363576109 47,517 1,160,655 SH   SOLE   996,525 0 164,130
B&G Foods, Inc. COM 05508R106 52,035 1,485,870 SH   SOLE   1,008,905 0 476,965
Berkshire Hathaway Inc. Class COM 084670702 370 2,800 SH   SOLE   2,800 0 0
Blackbaud, Inc. COM 09227Q100 77,713 1,179,970 SH   SOLE   818,435 0 361,535
Boston Beer Company, Inc. Clas COM 100557107 35,069 173,688 SH   SOLE   124,588 0 49,100
Brady Corporation Class A COM 104674106 47,239 2,055,675 SH   SOLE   1,460,050 0 595,625
Bright Horizons Family Solutio COM 109194100 521 7,800 SH   SOLE   0 0 7,800
Bryn Mawr Bank Corporation COM 117665109 31,564 1,099,020 SH   SOLE   778,790 0 320,230
C. R. Bard, Inc. COM 067383109 36,910 194,835 SH   SOLE   167,310 0 27,525
CLARCOR Inc. COM 179895107 118,153 2,378,285 SH   SOLE   1,779,690 0 598,595
CONMED Corporation COM 207410101 19,765 448,695 SH   SOLE   319,195 0 129,500
CST Brands, Inc. COM 12646R105 131,661 3,363,835 SH   SOLE   2,535,680 0 828,155
CVB Financial Corp. COM 126600105 51,899 3,067,310 SH   SOLE   2,178,300 0 889,010
Cabela's Incorporated COM 126804301 44,978 962,515 SH   SOLE   817,900 0 144,615
Cameco Corporation COM 13321L108 160 13,000 SH   SOLE   13,000 0 0
Cantel Medical Corp. COM 138098108 47,301 761,205 SH   SOLE   522,010 0 239,195
Cardiovascular Systems, Inc. COM 141619106 29,670 1,962,310 SH   SOLE   1,392,270 0 570,040
Casey's General Stores, Inc. COM 147528103 25,302 210,062 SH   SOLE   148,872 0 61,190
Cepheid COM 15670R107 124,285 3,402,285 SH   SOLE   2,607,235 0 795,050
CommVault Systems, Inc. COM 204166102 8,530 216,785 SH   SOLE   154,895 0 61,890
Commerce Bancshares, Inc. COM 200525103 55,308 1,300,147 SH   SOLE   1,116,853 0 183,294
Community Bank System, Inc. COM 203607106 46,323 1,159,815 SH   SOLE   822,430 0 337,385
Cooper Companies, Inc. COM 216648402 39,884 297,195 SH   SOLE   260,440 0 36,755
Core Laboratories NV COM N22717107 36,519 335,840 SH   SOLE   288,320 0 47,520
Cullen/Frost Bankers, Inc. COM 229899109 50,261 837,685 SH   SOLE   719,035 0 118,650
Denbury Resources Inc. COM 247916208 24,948 12,350,375 SH   SOLE   11,093,485 0 1,256,890
Donaldson Company, Inc. COM 257651109 28,472 993,445 SH   SOLE   852,555 0 140,890
Dover Corporation COM 260003108 57,997 945,970 SH   SOLE   812,755 0 133,215
Edwards Lifesciences Corporati COM 28176E108 32,893 416,470 SH   SOLE   357,300 0 59,170
El Pollo Loco Holdings Inc COM 268603107 14,007 1,109,065 SH   SOLE   788,535 0 320,530
Elizabeth Arden, Inc. COM 28660G106 5,334 538,790 SH   SOLE   497,305 0 41,485
Endurance Specialty Holdings L COM G30397106 164,813 2,575,605 SH   SOLE   1,950,510 0 625,095
Esterline Technologies Corpora COM 297425100 33,794 417,205 SH   SOLE   296,405 0 120,800
Express Scripts Holding Compan COM 30219G108 201 2,300 SH   SOLE   2,300 0 0
Fastenal Company COM 311900104 30,286 741,950 SH   SOLE   637,530 0 104,420
Financial Engines, Inc. COM 317485100 75,203 2,233,525 SH   SOLE   1,583,845 0 649,680
First Financial Bankshares, In COM 32020R109 41,691 1,381,855 SH   SOLE   982,630 0 399,225
FleetMatics Group Ltd. COM G35569105 29,262 576,130 SH   SOLE   403,590 0 172,540
Flowers Foods, Inc. COM 343498101 66,491 3,094,055 SH   SOLE   2,658,000 0 436,055
Fortinet, Inc. COM 34959E109 23,162 743,095 SH   SOLE   637,845 0 105,250
Forum Energy Technologies, Inc COM 34984V100 27,116 2,176,275 SH   SOLE   1,457,515 0 718,760
Frank's International NV COM N33462107 30,820 1,846,610 SH   SOLE   1,585,610 0 261,000
Fresh Market, Inc. COM 35804H106 66,184 2,825,980 SH   SOLE   2,010,595 0 815,385
German American Bancorp, Inc. COM 373865104 6,741 202,310 SH   SOLE   141,735 0 60,575
Globus Medical, Inc. Class A COM 379577208 44,470 1,598,495 SH   SOLE   1,114,000 0 484,495
Gorman-Rupp Company COM 383082104 16,042 600,165 SH   SOLE   424,350 0 175,815
Guidewire Software, Inc. COM 40171V100 86,231 1,433,355 SH   SOLE   1,086,185 0 347,170
H.B. Fuller Company COM 359694106 27,784 761,825 SH   SOLE   545,000 0 216,825
Halyard Health Inc COM 40650V100 21,532 644,475 SH   SOLE   457,505 0 186,970
Hibbett Sports, Inc. COM 428567101 25,475 842,440 SH   SOLE   596,890 0 245,550
ICU Medical, Inc. COM 44930G107 50,842 450,805 SH   SOLE   302,115 0 148,690
IDEX Corporation COM 45167R104 19,021 248,285 SH   SOLE   213,155 0 35,130
Independent Bank Corp. COM 453836108 31,591 679,095 SH   SOLE   482,645 0 196,450
Innospec Inc. COM 45768S105 45,577 839,210 SH   SOLE   594,365 0 244,845
Insulet Corporation COM 45784P101 51,378 1,358,840 SH   SOLE   984,280 0 374,560
Integra LifeSciences Holdings COM 457985208 100,441 1,481,875 SH   SOLE   1,052,560 0 429,315
J. M. Smucker Company COM 832696405 80,124 649,615 SH   SOLE   557,180 0 92,435
James River Group Holdings Ltd COM G5005R107 12,465 371,650 SH   SOLE   239,055 0 132,595
John Bean Technologies Corpora COM 477839104 15,749 316,055 SH   SOLE   224,555 0 91,500
John Wiley & Sons, Inc. Class COM 968223206 112,685 2,502,445 SH   SOLE   1,887,590 0 614,855
Johnson & Johnson COM 478160104 308 3,000 SH   SOLE   3,000 0 0
Laboratory Corporation of Amer COM 50540R409 51,332 415,175 SH   SOLE   356,495 0 58,680
Lancaster Colony Corporation COM 513847103 40,311 349,130 SH   SOLE   245,950 0 103,180
Landstar System, Inc. COM 515098101 19,196 327,290 SH   SOLE   229,700 0 97,590
LogMeIn, Inc. COM 54142L109 85,670 1,276,755 SH   SOLE   908,325 0 368,430
Lydall, Inc. COM 550819106 36,547 1,030,085 SH   SOLE   724,725 0 305,360
Masimo Corporation COM 574795100 51,164 1,232,560 SH   SOLE   866,885 0 365,675
McCormick & Company, Incorpora COM 579780206 56,047 655,060 SH   SOLE   562,415 0 92,645
Mead Johnson Nutrition Company COM 582839106 43,172 546,830 SH   SOLE   469,395 0 77,435
Medidata Solutions, Inc. COM 58471A105 58,656 1,190,025 SH   SOLE   844,560 0 345,465
Mentor Graphics Corporation COM 587200106 26,187 1,421,675 SH   SOLE   1,008,540 0 413,135
Mettler-Toledo International I COM 592688105 18,260 53,845 SH   SOLE   46,270 0 7,575
Molson Coors Brewing Company C COM 60871R209 34,244 364,610 SH   SOLE   312,650 0 51,960
NBT Bancorp Inc. COM 628778102 14,486 519,590 SH   SOLE   366,680 0 152,910
NIC Inc. COM 62914B100 30,299 1,539,560 SH   SOLE   1,089,600 0 449,960
Navigators Group, Inc. COM 638904102 36,274 422,825 SH   SOLE   300,445 0 122,380
Northern Trust Corporation COM 665859104 59,853 830,250 SH   SOLE   712,965 0 117,285
NuVasive, Inc. COM 670704105 62,637 1,157,595 SH   SOLE   820,265 0 337,330
Omnicell, Inc. COM 68213N109 49,062 1,578,570 SH   SOLE   1,118,875 0 459,695
Owens & Minor, Inc. COM 690732102 20,626 573,275 SH   SOLE   407,470 0 165,805
PROS Holdings, Inc. COM 74346Y103 48,728 2,114,940 SH   SOLE   1,501,565 0 613,375
PTC Inc. COM 69370C100 52,934 1,528,550 SH   SOLE   1,313,625 0 214,925
Panera Bread Company Class A COM 69840W108 19,536 100,300 SH   SOLE   86,230 0 14,070
Parker-Hannifin Corporation COM 701094104 44,932 463,310 SH   SOLE   398,095 0 65,215
Phibro Animal Health Corporati COM 71742Q106 13,152 436,525 SH   SOLE   311,945 0 124,580
Philip Morris International In COM 718172109 396 4,500 SH   SOLE   4,500 0 0
Potash Corporation of Saskatch COM 73755L107 257 15,000 SH   SOLE   15,000 0 0
Prosperity Bancshares, Inc.(R) COM 743606105 87,370 1,825,525 SH   SOLE   1,428,350 0 397,175
QUALCOMM Incorporated COM 747525103 275 5,500 SH   SOLE   5,500 0 0
Qlik Technologies Inc. COM 74733T105 34,263 1,082,205 SH   SOLE   727,555 0 354,650
Qualys, Inc. COM 74758T303 82,358 2,488,919 SH   SOLE   1,763,564 0 725,355
RBC Bearings Incorporated COM 75524B104 57,826 895,280 SH   SOLE   636,480 0 258,800
Raven Industries, Inc. COM 754212108 21,083 1,351,490 SH   SOLE   1,149,670 0 201,820
Red Hat, Inc. COM 756577102 68,866 831,615 SH   SOLE   714,400 0 117,215
Ritchie Bros. Auctioneers Inco COM 767744105 35,295 1,463,895 SH   SOLE   1,063,260 0 400,635
Rockwell Automation, Inc. COM 773903109 59,370 578,595 SH   SOLE   497,065 0 81,530
SPS Commerce, Inc. COM 78463M107 26,854 382,485 SH   SOLE   272,095 0 110,390
Sally Beauty Holdings, Inc. COM 79546E104 35,639 1,277,850 SH   SOLE   1,096,445 0 181,405
Sensient Technologies Corporat COM 81725T100 26,547 422,595 SH   SOLE   300,170 0 122,425
Sirona Dental Systems, Inc. COM 82966C103 45,876 418,690 SH   SOLE   359,100 0 59,590
Snyder's-Lance, Inc. COM 833551104 54,120 1,577,850 SH   SOLE   1,000,200 0 577,650
SolarWinds, Inc. COM 83416B109 77,308 1,312,535 SH   SOLE   1,128,075 0 184,460
Splunk Inc. COM 848637104 40,831 694,280 SH   SOLE   595,695 0 98,585
St. Jude Medical, Inc. COM 790849103 75,008 1,214,315 SH   SOLE   1,044,715 0 169,600
Standex International Corporat COM 854231107 43,218 519,765 SH   SOLE   366,590 0 153,175
Steris PLC COM G84720104 34,754 461,290 SH   SOLE   396,140 0 65,150
Stock Yards Bancorp, Inc. COM 861025104 20,026 529,925 SH   SOLE   374,965 0 154,960
Suncor Energy Inc. COM 867224107 245 9,500 SH   SOLE   9,500 0 0
Synopsys, Inc. COM 871607107 18,808 412,370 SH   SOLE   354,125 0 58,245
Teleflex Incorporated COM 879369106 32,753 249,165 SH   SOLE   213,685 0 35,480
TreeHouse Foods, Inc. COM 89469A104 122,768 1,564,720 SH   SOLE   1,186,475 0 378,245
TriMas Corporation COM 896215209 61,401 3,292,305 SH   SOLE   2,342,360 0 949,945
Tupperware Brands Corporation COM 899896104 28,080 504,585 SH   SOLE   433,245 0 71,340
U.S. Bancorp COM 902973304 311 7,300 SH   SOLE   7,300 0 0
UMB Financial Corporation COM 902788108 84,083 1,806,290 SH   SOLE   1,279,640 0 526,650
W.W. Grainger, Inc. COM 384802104 50,354 248,550 SH   SOLE   213,525 0 35,025
WEX Inc. COM 96208T104 145,715 1,648,355 SH   SOLE   1,269,730 0 378,625
Wal-Mart Stores, Inc. COM 931142103 343 5,600 SH   SOLE   5,600 0 0
Washington Trust Bancorp, Inc. COM 940610108 37,246 942,470 SH   SOLE   666,435 0 276,035
Waters Corporation COM 941848103 35,086 260,705 SH   SOLE   224,180 0 36,525
Whole Foods Market, Inc. COM 966837106 40,017 1,194,525 SH   SOLE   1,027,275 0 167,250
Wolverine World Wide, Inc. COM 978097103 73,033 4,370,615 SH   SOLE   3,111,805 0 1,258,810
Woodward, Inc COM 980745103 73,261 1,475,250 SH   SOLE   1,046,140 0 429,110
Workday, Inc. Class A COM 98138H101 35,492 445,430 SH   SOLE   382,880 0 62,550
Xilinx, Inc. COM 983919101 22,907 487,700 SH   SOLE   418,600 0 69,100
Baozun Inc Sponsored ADR Class ADR 06684L103 575 70,000 SH   SOLE   70,000 0 0
Diageo plc Sponsored ADR ADR 25243Q205 360 3,300 SH   SOLE   3,300 0 0