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
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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 207 2,000 SH   SOLE   2,000 0 0
ANSYS, Inc. COM 03662Q105 46,486 527,415 SH   SOLE   451,795 0 75,620
Aceto Corporation COM 004446100 25,112 914,841 SH   SOLE   630,771 0 284,070
Actuant Corporation Class A COM 00508X203 71,261 3,874,997 SH   SOLE   2,660,207 0 1,214,790
Advance Auto Parts, Inc. COM 00751Y106 25,525 134,675 SH   SOLE   115,685 0 18,990
Advisory Board Company COM 00762W107 214 4,710 SH   SOLE   4,710 0 0
Align Technology, Inc. COM 016255101 29,882 526,455 SH   SOLE   450,880 0 75,575
Allied World Assurance Company COM H01531104 129,388 3,389,783 SH   SOLE   2,588,823 0 800,960
American International Group, COM 026874784 267 4,700 SH   SOLE   4,700 0 0
American Vanguard Corporation COM 030371108 7,996 691,676 SH   SOLE   484,881 0 206,795
Aptargroup, Inc. COM 038336103 39,776 603,035 SH   SOLE   515,360 0 87,675
Argo Group International Holdi COM G0464B107 68,441 1,209,415 SH   SOLE   827,025 0 382,390
Arthur J. Gallagher & Co. COM 363576109 48,193 1,167,475 SH   SOLE   1,000,395 0 167,080
B&G Foods, Inc. COM 05508R106 56,622 1,553,429 SH   SOLE   1,032,464 0 520,965
Bed Bath & Beyond Inc. COM 075896100 36,378 637,995 SH   SOLE   547,255 0 90,740
Berkshire Hathaway Inc. Class COM 084670702 280 2,150 SH   SOLE   2,150 0 0
Blackbaud, Inc. COM 09227Q100 72,120 1,285,108 SH   SOLE   836,673 0 448,435
Boston Beer Company, Inc. Clas COM 100557107 12,515 59,424 SH   SOLE   41,439 0 17,985
Brady Corporation Class A COM 104674106 33,566 1,707,323 SH   SOLE   1,273,358 0 433,965
Bright Horizons Family Solutio COM 109194100 14,944 232,630 SH   SOLE   156,160 0 76,470
Bryn Mawr Bank Corporation COM 117665109 35,956 1,157,272 SH   SOLE   799,042 0 358,230
C. R. Bard, Inc. COM 067383109 36,577 196,325 SH   SOLE   168,475 0 27,850
CLARCOR Inc. COM 179895107 115,371 2,419,697 SH   SOLE   1,800,077 0 619,620
CST Brands, Inc. COM 12646R105 109,495 3,252,983 SH   SOLE   2,428,808 0 824,175
CVB Financial Corp. COM 126600105 55,601 3,329,407 SH   SOLE   2,310,587 0 1,018,820
Cabela's Incorporated COM 126804301 46,898 1,028,455 SH   SOLE   880,890 0 147,565
Cameco Corporation COM 13321L108 146 12,000 SH   SOLE   12,000 0 0
Cantel Medical Corp. COM 138098108 47,837 843,690 SH   SOLE   575,325 0 268,365
Cardiovascular Systems, Inc. COM 141619106 10,213 644,791 SH   SOLE   465,321 0 179,470
Casey's General Stores, Inc. COM 147528103 51,841 503,701 SH   SOLE   317,811 0 185,890
Cepheid COM 15670R107 79,215 1,752,534 SH   SOLE   1,290,924 0 461,610
Commerce Bancshares, Inc. COM 200525103 56,755 1,245,715 SH   SOLE   1,067,880 0 177,835
Community Bank System, Inc. COM 203607106 46,069 1,239,409 SH   SOLE   862,284 0 377,125
Cooper Companies, Inc. COM 216648402 42,197 283,465 SH   SOLE   248,265 0 35,200
Core Laboratories NV COM N22717107 35,086 351,560 SH   SOLE   301,585 0 49,975
Cullen/Frost Bankers, Inc. COM 229899109 54,129 851,355 SH   SOLE   730,530 0 120,825
Darling Ingredients Inc. COM 237266101 124 11,000 SH   SOLE   11,000 0 0
Denbury Resources Inc. COM 247916208 30,466 12,486,191 SH   SOLE   10,977,406 0 1,508,785
Donaldson Company, Inc. COM 257651109 28,234 1,005,470 SH   SOLE   862,255 0 143,215
Dover Corporation COM 260003108 54,618 955,200 SH   SOLE   819,585 0 135,615
Edwards Lifesciences Corporati COM 28176E108 36,630 257,650 SH   SOLE   220,975 0 36,675
Elizabeth Arden, Inc. COM 28660G106 9,553 817,156 SH   SOLE   731,711 0 85,445
Endurance Specialty Holdings L COM G30397106 161,643 2,648,581 SH   SOLE   1,974,936 0 673,645
Esterline Technologies Corpora COM 297425100 38,979 542,198 SH   SOLE   374,598 0 167,600
Fastenal Company COM 311900104 27,273 744,965 SH   SOLE   638,645 0 106,320
Financial Engines, Inc. COM 317485100 54,223 1,839,928 SH   SOLE   1,287,468 0 552,460
First Financial Bankshares, In COM 32020R109 47,190 1,484,900 SH   SOLE   1,038,425 0 446,475
FleetMatics Group Ltd. COM G35569105 63,969 1,303,095 SH   SOLE   898,285 0 404,810
Flowers Foods, Inc. COM 343498101 83,327 3,368,100 SH   SOLE   2,888,240 0 479,860
Fortinet, Inc. COM 34959E109 17,783 418,630 SH   SOLE   359,085 0 59,545
Forum Energy Technologies, Inc COM 34984V100 34,025 2,786,643 SH   SOLE   1,596,883 0 1,189,760
Frank's International NV COM N33462107 28,591 1,865,025 SH   SOLE   1,599,575 0 265,450
Fresh Market, Inc. COM 35804H106 68,579 3,035,834 SH   SOLE   1,911,799 0 1,124,035
General Electric Company COM 369604103 277 11,000 SH   SOLE   11,000 0 0
German American Bancorp, Inc. COM 373865104 852 29,100 SH   SOLE   20,175 0 8,925
Globus Medical, Inc. Class A COM 379577208 37,008 1,791,286 SH   SOLE   1,247,981 0 543,305
Gorman-Rupp Company COM 383082104 13,655 569,688 SH   SOLE   398,903 0 170,785
Guidewire Software, Inc. COM 40171V100 104,807 1,993,294 SH   SOLE   1,403,524 0 589,770
H.B. Fuller Company COM 359694106 29,173 859,533 SH   SOLE   555,408 0 304,125
Halyard Health Inc COM 40650V100 29,694 1,044,101 SH   SOLE   614,651 0 429,450
Helen of Troy Limited COM G4388N106 7,144 80,000 SH   SOLE   0 0 80,000
Hibbett Sports, Inc. COM 428567101 29,800 851,181 SH   SOLE   624,411 0 226,770
ICU Medical, Inc. COM 44930G107 52,999 484,011 SH   SOLE   322,321 0 161,690
IDEX Corporation COM 45167R104 15,654 219,545 SH   SOLE   188,310 0 31,235
Independent Bank Corp. COM 453836108 33,276 721,812 SH   SOLE   501,942 0 219,870
Innospec Inc. COM 45768S105 42,067 904,466 SH   SOLE   630,591 0 273,875
Insulet Corporation COM 45784P101 37,365 1,442,118 SH   SOLE   994,058 0 448,060
Integra LifeSciences Holdings COM 457985208 91,066 1,529,240 SH   SOLE   1,061,055 0 468,185
J. M. Smucker Company COM 832696405 74,834 655,925 SH   SOLE   561,815 0 94,110
James River Group Holdings Ltd COM G5005R107 13,945 518,582 SH   SOLE   362,067 0 156,515
John Bean Technologies Corpora COM 477839104 10,795 282,221 SH   SOLE   196,601 0 85,620
John Wiley & Sons, Inc. Class COM 968223206 124,730 2,493,101 SH   SOLE   1,881,456 0 611,645
Johnson & Johnson COM 478160104 280 3,000 SH   SOLE   3,000 0 0
Laboratory Corporation of Amer COM 50540R409 45,630 420,670 SH   SOLE   360,915 0 59,755
Lancaster Colony Corporation COM 513847103 61,485 630,744 SH   SOLE   429,614 0 201,130
LogMeIn, Inc. COM 54142L109 86,151 1,263,954 SH   SOLE   886,684 0 377,270
Lydall, Inc. COM 550819106 32,076 1,125,886 SH   SOLE   785,376 0 340,510
Masimo Corporation COM 574795100 49,005 1,270,869 SH   SOLE   867,194 0 403,675
McCormick & Company, Incorpora COM 579780206 71,472 869,705 SH   SOLE   745,845 0 123,860
Mead Johnson Nutrition Company COM 582839106 17,853 253,600 SH   SOLE   217,410 0 36,190
Medidata Solutions, Inc. COM 58471A105 48,552 1,152,992 SH   SOLE   810,117 0 342,875
Mentor Graphics Corporation COM 587200106 36,186 1,469,199 SH   SOLE   1,021,064 0 448,135
Mettler-Toledo International I COM 592688105 15,436 54,210 SH   SOLE   46,435 0 7,775
Molson Coors Brewing Company C COM 60871R209 30,594 368,510 SH   SOLE   315,600 0 52,910
NBT Bancorp Inc. COM 628778102 19,412 720,546 SH   SOLE   480,006 0 240,540
NIC Inc. COM 62914B100 27,362 1,545,022 SH   SOLE   1,094,412 0 450,610
National Beverage Corp. COM 635017106 1,628 52,970 SH   SOLE   37,580 0 15,390
Navigators Group, Inc. COM 638904102 34,497 442,385 SH   SOLE   306,505 0 135,880
Northern Trust Corporation COM 665859104 57,161 838,630 SH   SOLE   719,245 0 119,385
NuVasive, Inc. COM 670704105 53,473 1,108,946 SH   SOLE   769,206 0 339,740
Omnicell, Inc. COM 68213N109 45,323 1,457,329 SH   SOLE   1,014,994 0 442,335
Owens & Minor, Inc. COM 690732102 19,550 612,077 SH   SOLE   427,442 0 184,635
PROS Holdings, Inc. COM 74346Y103 47,603 2,150,087 SH   SOLE   1,567,472 0 582,615
PTC Inc. COM 69370C100 48,833 1,538,520 SH   SOLE   1,319,795 0 218,725
Panera Bread Company Class A COM 69840W108 23,539 121,705 SH   SOLE   104,120 0 17,585
Parker-Hannifin Corporation COM 701094104 45,601 468,665 SH   SOLE   402,175 0 66,490
Phibro Animal Health Corporati COM 71742Q106 13,955 441,200 SH   SOLE   304,620 0 136,580
Philip Morris International In COM 718172109 357 4,500 SH   SOLE   4,500 0 0
Potash Corporation of Saskatch COM 73755L107 279 13,600 SH   SOLE   13,600 0 0
Prosperity Bancshares, Inc.(R) COM 743606105 87,932 1,790,516 SH   SOLE   1,389,736 0 400,780
QUALCOMM Incorporated COM 747525103 269 5,000 SH   SOLE   5,000 0 0
Qlik Technologies Inc. COM 74733T105 30,502 836,806 SH   SOLE   480,566 0 356,240
Qualys, Inc. COM 74758T303 70,635 2,481,902 SH   SOLE   1,738,607 0 743,295
RBC Bearings Incorporated COM 75524B104 54,055 904,986 SH   SOLE   631,006 0 273,980
Raven Industries, Inc. COM 754212108 26,208 1,546,222 SH   SOLE   1,243,802 0 302,420
Red Hat, Inc. COM 756577102 71,483 994,475 SH   SOLE   852,610 0 141,865
Ritchie Bros. Auctioneers Inco COM 767744105 38,680 1,494,591 SH   SOLE   1,093,956 0 400,635
Rockwell Automation, Inc. COM 773903109 57,947 571,080 SH   SOLE   489,615 0 81,465
SPS Commerce, Inc. COM 78463M107 20,566 302,933 SH   SOLE   213,133 0 89,800
Sally Beauty Holdings, Inc. COM 79546E104 22,121 931,425 SH   SOLE   796,965 0 134,460
Sensient Technologies Corporat COM 81725T100 27,111 442,275 SH   SOLE   306,850 0 135,425
Sirona Dental Systems, Inc. COM 82966C103 43,359 464,525 SH   SOLE   398,660 0 65,865
Snyder's-Lance, Inc. COM 833551104 64,222 1,904,006 SH   SOLE   1,212,426 0 691,580
SolarWinds, Inc. COM 83416B109 59,438 1,514,720 SH   SOLE   1,299,450 0 215,270
Splunk Inc. COM 848637104 22,281 402,545 SH   SOLE   345,545 0 57,000
St. Jude Medical, Inc. COM 790849103 76,457 1,211,875 SH   SOLE   1,039,300 0 172,575
Standex International Corporat COM 854231107 48,958 649,735 SH   SOLE   456,480 0 193,255
Steris PLC COM G84720104 73,613 1,133,035 SH   SOLE   862,575 0 270,460
Stock Yards Bancorp, Inc. COM 861025104 16,802 462,226 SH   SOLE   325,036 0 137,190
Suncor Energy Inc. COM 867224107 254 9,500 SH   SOLE   9,500 0 0
Synopsys, Inc. COM 871607107 15,609 337,995 SH   SOLE   289,740 0 48,255
Teleflex Incorporated COM 879369106 31,167 250,920 SH   SOLE   215,015 0 35,905
TreeHouse Foods, Inc. COM 89469A104 103,749 1,333,704 SH   SOLE   975,884 0 357,820
TriMas Corporation COM 896215209 50,535 3,090,834 SH   SOLE   2,390,389 0 700,445
Tupperware Brands Corporation COM 899896104 28,940 584,755 SH   SOLE   501,580 0 83,175
U.S. Bancorp COM 902973304 246 6,000 SH   SOLE   6,000 0 0
UMB Financial Corporation COM 902788108 94,923 1,868,203 SH   SOLE   1,306,053 0 562,150
W.W. Grainger, Inc. COM 384802104 28,910 134,460 SH   SOLE   115,295 0 19,165
WEX Inc. COM 96208T104 141,407 1,628,357 SH   SOLE   1,245,192 0 383,165
WOODWARD, INC. COM 980745103 65,158 1,600,927 SH   SOLE   1,121,367 0 479,560
Wal-Mart Stores, Inc. COM 931142103 285 4,400 SH   SOLE   4,400 0 0
Washington Trust Bancorp, Inc. COM 940610108 36,367 945,827 SH   SOLE   657,602 0 288,225
Waters Corporation COM 941848103 30,490 257,935 SH   SOLE   220,785 0 37,150
West Pharmaceutical Services, COM 955306105 20,839 385,045 SH   SOLE   166,040 0 219,005
Whole Foods Market, Inc. COM 966837106 18,194 574,835 SH   SOLE   492,765 0 82,070
Wolverine World Wide, Inc. COM 978097103 68,025 3,143,464 SH   SOLE   2,232,629 0 910,835
Workday, Inc. Class A COM 98138H101 25,671 372,800 SH   SOLE   319,390 0 53,410
Xilinx, Inc. COM 983919101 39,776 938,110 SH   SOLE   804,755 0 133,355
Alibaba Group Holding Ltd. Spo ADR 01609W102 949 16,100 SH   SOLE   16,100 0 0
Ambev SA Sponsored ADR ADR 02319V103 441 90,000 SH   SOLE   90,000 0 0
Diageo plc Sponsored ADR ADR 25243Q205 356 3,300 SH   SOLE   3,300 0 0
JD.com, Inc. Sponsored ADR Cla ADR 47215P106 753 28,900 SH   SOLE   28,900 0 0
Sanofi Sponsored ADR ADR 80105N105 237 5,000 SH   SOLE   5,000 0 0