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
ANSYS, Inc. COM 03662Q105 43,517 479,530 SH   SOLE   417,445 0 62,085
Abaxis, Inc. COM 002567105 8,524 180,475 SH   SOLE   126,715 0 53,760
Aceto Corporation COM 004446100 17,922 818,710 SH   SOLE   563,900 0 254,810
Actuant Corporation Class A COM 00508X203 42,770 1,891,635 SH   SOLE   1,298,195 0 593,440
Advance Auto Parts, Inc. COM 00751Y106 56,356 348,670 SH   SOLE   303,910 0 44,760
Advisory Board Company COM 00762W107 246 6,950 SH   SOLE   5,920 0 1,030
Align Technology, Inc. COM 016255101 36,421 452,160 SH   SOLE   393,895 0 58,265
Allied World Assurance Company COM H01531104 140,506 3,998,460 SH   SOLE   3,079,480 0 918,980
American Express Company COM 025816109 213 3,500 SH   SOLE   3,500 0 0
American International Group, COM 026874784 354 6,700 SH   SOLE   6,700 0 0
Amgen Inc. COM 031162100 243 1,600 SH   SOLE   1,600 0 0
Aptargroup, Inc. COM 038336103 37,413 472,800 SH   SOLE   411,070 0 61,730
Argo Group International Holdi COM G0464B107 48,995 944,027 SH   SOLE   647,402 0 296,625
Arthur J. Gallagher & Co. COM 363576109 57,500 1,207,980 SH   SOLE   1,051,225 0 156,755
B&G Foods, Inc. COM 05508R106 31,960 663,065 SH   SOLE   452,995 0 210,070
Balchem Corporation COM 057665200 18,962 317,885 SH   SOLE   217,210 0 100,675
Berkshire Hathaway Inc. Class COM 084670702 405 2,800 SH   SOLE   2,800 0 0
Blackbaud, Inc. COM 09227Q100 85,018 1,252,110 SH   SOLE   901,485 0 350,625
Boston Beer Company, Inc. Clas COM 100557107 48,679 284,622 SH   SOLE   195,147 0 89,475
Brady Corporation Class A COM 104674106 46,832 1,532,445 SH   SOLE   1,049,330 0 483,115
Bryn Mawr Bank Corporation COM 117665109 28,345 970,720 SH   SOLE   662,940 0 307,780
Buffalo Wild Wings, Inc. COM 119848109 32,691 235,272 SH   SOLE   160,642 0 74,630
C. R. Bard, Inc. COM 067383109 45,193 192,180 SH   SOLE   167,375 0 24,805
CLARCOR Inc. COM 179895107 126,570 2,080,715 SH   SOLE   1,550,830 0 529,885
CONMED Corporation COM 207410101 69,955 1,465,640 SH   SOLE   1,007,075 0 458,565
CST Brands, Inc. COM 12646R105 80,518 1,869,025 SH   SOLE   1,404,665 0 464,360
CVB Financial Corp. COM 126600105 44,075 2,689,125 SH   SOLE   1,833,225 0 855,900
CVS Health Corporation COM 126650100 326 3,400 SH   SOLE   3,400 0 0
Cabela's Incorporated COM 126804301 24,304 485,495 SH   SOLE   422,850 0 62,645
Cameco Corporation COM 13321L108 143 13,000 SH   SOLE   13,000 0 0
Cantel Medical Corp. COM 138098108 46,093 670,635 SH   SOLE   438,840 0 231,795
Cardiovascular Systems, Inc. COM 141619106 27,814 1,513,690 SH   SOLE   1,039,080 0 474,610
Cepheid COM 15670R107 105,687 3,436,980 SH   SOLE   2,627,220 0 809,760
Chubb Limited COM H1467J104 261 2,000 SH   SOLE   2,000 0 0
CommVault Systems, Inc. COM 204166102 33,653 779,185 SH   SOLE   533,995 0 245,190
Commerce Bancshares, Inc. COM 200525103 54,258 1,132,740 SH   SOLE   987,635 0 145,105
Community Bank System, Inc. COM 203607106 41,706 1,014,995 SH   SOLE   689,980 0 325,015
Cooper Companies, Inc. COM 216648402 58,524 341,110 SH   SOLE   303,320 0 37,790
Core Laboratories NV COM N22717107 41,529 335,210 SH   SOLE   292,145 0 43,065
Cullen/Frost Bankers, Inc. COM 229899109 57,616 904,070 SH   SOLE   786,965 0 117,105
DENTSPLY SIRONA, Inc. COM 24906P109 59,539 959,685 SH   SOLE   835,410 0 124,275
Denbury Resources Inc. COM 247916208 34,001 9,471,060 SH   SOLE   8,534,535 0 936,525
Donaldson Company, Inc. COM 257651109 36,982 1,076,300 SH   SOLE   937,405 0 138,895
Dover Corporation COM 260003108 75,780 1,093,195 SH   SOLE   951,820 0 141,375
Edwards Lifesciences Corporati COM 28176E108 15,896 159,390 SH   SOLE   138,610 0 20,780
El Pollo Loco Holdings Inc COM 268603107 17,544 1,349,530 SH   SOLE   930,890 0 418,640
Endurance Specialty Holdings L COM G30397106 163,770 2,438,505 SH   SOLE   1,832,630 0 605,875
Envestnet, Inc. COM 29404K106 31,946 959,050 SH   SOLE   661,620 0 297,430
Express Scripts Holding Compan COM 30219G108 364 4,800 SH   SOLE   4,800 0 0
Fastenal Company COM 311900104 30,685 691,265 SH   SOLE   601,570 0 89,695
Financial Engines, Inc. COM 317485100 50,082 1,935,915 SH   SOLE   1,336,285 0 599,630
First Financial Bankshares, In COM 32020R109 37,558 1,145,395 SH   SOLE   785,510 0 359,885
FleetMatics Group Ltd. COM G35569105 22,044 508,745 SH   SOLE   342,115 0 166,630
Flowers Foods, Inc. COM 343498101 78,046 4,162,430 SH   SOLE   3,621,695 0 540,735
Fortinet, Inc. COM 34959E109 26,575 841,250 SH   SOLE   732,820 0 108,430
Forum Energy Technologies, Inc COM 34984V100 43,366 2,505,270 SH   SOLE   1,719,910 0 785,360
German American Bancorp, Inc. COM 373865104 9,018 282,090 SH   SOLE   193,745 0 88,345
Globus Medical, Inc. Class A COM 379577208 33,033 1,386,210 SH   SOLE   943,625 0 442,585
Gorman-Rupp Company COM 383082104 14,624 533,515 SH   SOLE   363,050 0 170,465
Guidewire Software, Inc. COM 40171V100 77,831 1,260,215 SH   SOLE   958,285 0 301,930
H.B. Fuller Company COM 359694106 25,232 573,595 SH   SOLE   395,550 0 178,045
Halyard Health Inc COM 40650V100 3,014 92,685 SH   SOLE   63,305 0 29,380
Hibbett Sports, Inc. COM 428567101 25,849 743,005 SH   SOLE   506,665 0 236,340
ICU Medical, Inc. COM 44930G107 54,014 479,060 SH   SOLE   329,740 0 149,320
IDEX Corporation COM 45167R104 40,977 499,115 SH   SOLE   434,430 0 64,685
Independent Bank Corp. COM 453836108 28,998 634,540 SH   SOLE   433,140 0 201,400
Innospec Inc. COM 45768S105 39,460 858,010 SH   SOLE   589,465 0 268,545
Insulet Corporation COM 45784P101 28,735 950,235 SH   SOLE   649,265 0 300,970
Integra LifeSciences Holdings COM 457985208 131,104 1,643,325 SH   SOLE   1,182,650 0 460,675
J & J Snack Foods Corp. COM 466032109 22,504 188,680 SH   SOLE   129,220 0 59,460
J. M. Smucker Company COM 832696405 44,048 289,010 SH   SOLE   250,605 0 38,405
James River Group Holdings Ltd COM G5005R107 2,951 86,890 SH   SOLE   32,755 0 54,135
John Bean Technologies Corpora COM 477839104 33,400 545,580 SH   SOLE   375,580 0 170,000
John Wiley & Sons, Inc. Class COM 968223206 123,052 2,358,220 SH   SOLE   1,762,105 0 596,115
Johnson & Johnson COM 478160104 218 1,800 SH   SOLE   1,800 0 0
Laboratory Corporation of Amer COM 50540R409 58,901 452,145 SH   SOLE   393,915 0 58,230
Landstar System, Inc. COM 515098101 20,922 304,720 SH   SOLE   209,650 0 95,070
LogMeIn, Inc. COM 54142L109 72,703 1,146,185 SH   SOLE   789,795 0 356,390
Lydall, Inc. COM 550819106 36,958 958,460 SH   SOLE   660,980 0 297,480
Masimo Corporation COM 574795100 49,567 943,865 SH   SOLE   647,450 0 296,415
Mead Johnson Nutrition Company COM 582839106 45,120 497,185 SH   SOLE   433,255 0 63,930
Medidata Solutions, Inc. COM 58471A105 71,740 1,530,610 SH   SOLE   1,124,130 0 406,480
Mentor Graphics Corporation COM 587200106 28,254 1,328,970 SH   SOLE   912,815 0 416,155
Mettler-Toledo International I COM 592688105 19,888 54,500 SH   SOLE   47,250 0 7,250
Molson Coors Brewing Company C COM 60871R209 41,053 405,945 SH   SOLE   352,925 0 53,020
Monsanto Company COM 61166W101 207 2,000 SH   SOLE   2,000 0 0
NIC Inc. COM 62914B100 37,403 1,704,800 SH   SOLE   1,170,430 0 534,370
Navigators Group, Inc. COM 638904102 33,849 368,040 SH   SOLE   249,920 0 118,120
Northern Trust Corporation COM 665859104 61,082 921,860 SH   SOLE   802,495 0 119,365
NuVasive, Inc. COM 670704105 100,499 1,682,830 SH   SOLE   1,239,785 0 443,045
Omnicell, Inc. COM 68213N109 48,312 1,411,380 SH   SOLE   962,675 0 448,705
PROS Holdings, Inc. COM 74346Y103 23,414 1,343,340 SH   SOLE   916,595 0 426,745
PTC Inc. COM 69370C100 62,692 1,668,240 SH   SOLE   1,452,705 0 215,535
Palo Alto Networks, Inc. COM 697435105 40,539 330,550 SH   SOLE   288,015 0 42,535
Parker-Hannifin Corporation COM 701094104 35,597 329,450 SH   SOLE   286,570 0 42,880
Phibro Animal Health Corporati COM 71742Q106 3,560 190,760 SH   SOLE   131,195 0 59,565
Potash Corporation of Saskatch COM 73755L107 244 15,000 SH   SOLE   15,000 0 0
Prosperity Bancshares, Inc.(R) COM 743606105 92,323 1,810,615 SH   SOLE   1,420,900 0 389,715
QUALCOMM Incorporated COM 747525103 295 5,500 SH   SOLE   5,500 0 0
Qlik Technologies Inc. COM 74733T105 27,921 943,900 SH   SOLE   647,540 0 296,360
Qualys, Inc. COM 74758T303 62,269 2,088,854 SH   SOLE   1,436,599 0 652,255
RBC Bearings Incorporated COM 75524B104 41,556 573,185 SH   SOLE   390,595 0 182,590
Raven Industries, Inc. COM 754212108 18,745 989,705 SH   SOLE   815,425 0 174,280
Red Hat, Inc. COM 756577102 63,103 869,190 SH   SOLE   757,250 0 111,940
Ritchie Bros. Auctioneers Inco COM 767744105 50,075 1,482,375 SH   SOLE   1,042,270 0 440,105
Rockwell Automation, Inc. COM 773903109 72,267 629,395 SH   SOLE   548,115 0 81,280
SPS Commerce, Inc. COM 78463M107 30,030 495,550 SH   SOLE   350,360 0 145,190
SVB Financial Group COM 78486Q101 22,959 241,270 SH   SOLE   209,645 0 31,625
Sally Beauty Holdings, Inc. COM 79546E104 53,686 1,825,430 SH   SOLE   1,589,135 0 236,295
Sensient Technologies Corporat COM 81725T100 26,837 377,780 SH   SOLE   258,505 0 119,275
Snyder's-Lance, Inc. COM 833551104 121,304 3,579,355 SH   SOLE   2,680,385 0 898,970
Splunk Inc. COM 848637104 45,440 838,695 SH   SOLE   730,485 0 108,210
St. Jude Medical, Inc. COM 790849103 77,085 988,265 SH   SOLE   856,875 0 131,390
Standex International Corporat COM 854231107 43,656 528,330 SH   SOLE   364,065 0 164,265
Steris PLC COM G84720104 61,771 898,485 SH   SOLE   782,420 0 116,065
Stock Yards Bancorp, Inc. COM 861025104 22,394 793,278 SH   SOLE   544,188 0 249,090
Suncor Energy Inc. COM 867224107 263 9,500 SH   SOLE   9,500 0 0
Synopsys, Inc. COM 871607107 25,163 465,285 SH   SOLE   404,540 0 60,745
Teleflex Incorporated COM 879369106 16,883 95,220 SH   SOLE   82,560 0 12,660
TreeHouse Foods, Inc. COM 89469A104 141,155 1,375,110 SH   SOLE   1,044,725 0 330,385
TriMas Corporation COM 896215209 53,672 2,981,765 SH   SOLE   2,049,285 0 932,480
Tupperware Brands Corporation COM 899896104 19,673 349,555 SH   SOLE   304,590 0 44,965
U.S. Bancorp COM 902973304 363 9,000 SH   SOLE   9,000 0 0
UMB Financial Corporation COM 902788108 58,695 1,103,080 SH   SOLE   755,580 0 347,500
Verizon Communications Inc. COM 92343V104 268 4,800 SH   SOLE   4,800 0 0
W.W. Grainger, Inc. COM 384802104 71,574 314,955 SH   SOLE   274,425 0 40,530
WEX Inc. COM 96208T104 138,233 1,558,955 SH   SOLE   1,194,835 0 364,120
Wal-Mart Stores, Inc. COM 931142103 409 5,600 SH   SOLE   5,600 0 0
Washington Trust Bancorp, Inc. COM 940610108 31,517 831,140 SH   SOLE   565,435 0 265,705
Waters Corporation COM 941848103 38,118 271,015 SH   SOLE   235,930 0 35,085
Westinghouse Air Brake Technol COM 929740108 23,468 334,160 SH   SOLE   290,840 0 43,320
Whole Foods Market, Inc. COM 966837106 51,209 1,599,280 SH   SOLE   1,391,440 0 207,840
Wolverine World Wide, Inc. COM 978097103 84,629 4,164,835 SH   SOLE   2,860,745 0 1,304,090
Woodward, Inc COM 980745103 54,331 942,590 SH   SOLE   643,780 0 298,810
Workday, Inc. Class A COM 98138H101 42,010 562,615 SH   SOLE   489,280 0 73,335
Xilinx, Inc. COM 983919101 20,041 434,455 SH   SOLE   378,295 0 56,160
BP p.l.c. Sponsored ADR ADR 055622104 213 6,000 SH   SOLE   6,000 0 0
Baozun Inc Sponsored ADR Class ADR 06684L103 454 70,000 SH   SOLE   70,000 0 0
Diageo plc Sponsored ADR ADR 25243Q205 429 3,800 SH   SOLE   3,800 0 0
Unilever PLC Sponsored ADR ADR 904767704 216 4,500 SH   SOLE   4,500 0 0