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 51,581 556,965 SH   SOLE   496,530 0 60,435
Abaxis, Inc. COM 002567105 9,204 178,300 SH   SOLE   126,240 0 52,060
Aceto Corporation COM 004446100 14,931 786,255 SH   SOLE   548,645 0 237,610
Actuant Corporation Class A COM 00508X203 42,521 1,829,665 SH   SOLE   1,263,925 0 565,740
Advance Auto Parts, Inc. COM 00751Y106 61,658 413,480 SH   SOLE   368,520 0 44,960
AdvancePierre Foods Holdings, COM 00782L107 6,303 228,700 SH   SOLE   158,170 0 70,530
Advisory Board Company COM 00762W107 348 7,775 SH   SOLE   6,745 0 1,030
Akamai Technologies, Inc. COM 00971T101 32,417 611,765 SH   SOLE   543,835 0 67,930
Align Technology, Inc. COM 016255101 48,859 521,165 SH   SOLE   464,450 0 56,715
Allied World Assurance Company COM H01531104 180,989 4,477,700 SH   SOLE   3,528,935 0 948,765
American Express Company COM 025816109 224 3,500 SH   SOLE   3,500 0 0
American International Group, COM 026874784 398 6,700 SH   SOLE   6,700 0 0
Amgen Inc. COM 031162100 267 1,600 SH   SOLE   1,600 0 0
Amplify Snack Brands Inc COM 03211L102 6,474 399,640 SH   SOLE   273,110 0 126,530
Aptargroup, Inc. COM 038336103 41,540 536,625 SH   SOLE   477,920 0 58,705
Argo Group International Holdi COM G0464B107 56,796 1,006,673 SH   SOLE   702,280 0 304,393
Arthur J. Gallagher & Co. COM 363576109 70,449 1,384,885 SH   SOLE   1,232,480 0 152,405
B&G Foods, Inc. COM 05508R106 27,619 561,580 SH   SOLE   380,490 0 181,090
Balchem Corporation COM 057665200 24,531 316,410 SH   SOLE   216,235 0 100,175
Berkshire Hathaway Inc. Class COM 084670702 405 2,800 SH   SOLE   2,800 0 0
Blackbaud, Inc. COM 09227Q100 109,331 1,648,045 SH   SOLE   1,234,030 0 414,015
Boston Beer Company, Inc. Clas COM 100557107 43,515 280,272 SH   SOLE   195,572 0 84,700
Brady Corporation Class A COM 104674106 43,835 1,266,555 SH   SOLE   875,510 0 391,045
Bryn Mawr Bank Corporation COM 117665109 29,824 932,304 SH   SOLE   645,305 0 286,999
Buffalo Wild Wings, Inc. COM 119848109 34,463 244,867 SH   SOLE   170,342 0 74,525
C. R. Bard, Inc. COM 067383109 50,312 224,325 SH   SOLE   199,960 0 24,365
CLARCOR Inc. COM 179895107 131,504 2,023,140 SH   SOLE   1,550,720 0 472,420
CONMED Corporation COM 207410101 60,229 1,503,480 SH   SOLE   1,043,410 0 460,070
CST Brands, Inc. COM 12646R105 58,416 1,214,725 SH   SOLE   914,410 0 300,315
CVB Financial Corp. COM 126600105 44,926 2,551,190 SH   SOLE   1,776,990 0 774,200
CVS Health Corporation COM 126650100 392 4,400 SH   SOLE   4,400 0 0
Cabela's Incorporated COM 126804301 21,313 388,000 SH   SOLE   338,565 0 49,435
Cameco Corporation COM 13321L108 160 18,700 SH   SOLE   18,700 0 0
Cantel Medical Corp. COM 138098108 43,498 557,810 SH   SOLE   385,855 0 171,955
Cardiovascular Systems, Inc. COM 141619106 34,283 1,444,085 SH   SOLE   1,003,475 0 440,610
Cepheid COM 15670R107 184,622 3,503,925 SH   SOLE   2,728,015 0 775,910
Chase Corporation COM 16150R104 5,787 83,725 SH   SOLE   56,215 0 27,510
Chubb Limited COM H1467J104 214 1,700 SH   SOLE   1,700 0 0
Cognizant Technology Solutions COM 192446102 224 4,700 SH   SOLE   4,700 0 0
CommVault Systems, Inc. COM 204166102 39,681 746,870 SH   SOLE   518,480 0 228,390
Commerce Bancshares, Inc. COM 200525103 63,338 1,285,785 SH   SOLE   1,144,930 0 140,855
Community Bank System, Inc. COM 203607106 40,378 839,295 SH   SOLE   582,775 0 256,520
Cooper Companies, Inc. COM 216648402 78,739 439,245 SH   SOLE   398,915 0 40,330
Core Laboratories NV COM N22717107 43,286 385,345 SH   SOLE   343,430 0 41,915
Cullen/Frost Bankers, Inc. COM 229899109 74,459 1,035,015 SH   SOLE   921,235 0 113,780
DENTSPLY SIRONA, Inc. COM 24906P109 75,215 1,265,600 SH   SOLE   1,127,300 0 138,300
Denbury Resources Inc. COM 247916208 32,454 10,047,740 SH   SOLE   9,143,290 0 904,450
Donaldson Company, Inc. COM 257651109 45,938 1,230,580 SH   SOLE   1,095,610 0 134,970
Dover Corporation COM 260003108 94,741 1,286,540 SH   SOLE   1,145,145 0 141,395
El Pollo Loco Holdings Inc COM 268603107 16,399 1,302,505 SH   SOLE   902,065 0 400,440
Endurance Specialty Holdings L COM G30397106 173,075 2,644,380 SH   SOLE   2,059,060 0 585,320
Envestnet, Inc. COM 29404K106 34,785 954,315 SH   SOLE   661,745 0 292,570
Express Scripts Holding Compan COM 30219G108 381 5,400 SH   SOLE   5,400 0 0
Fastenal Company COM 311900104 33,372 798,755 SH   SOLE   711,535 0 87,220
Financial Engines, Inc. COM 317485100 51,618 1,737,405 SH   SOLE   1,199,440 0 537,965
First Financial Bankshares, In COM 32020R109 39,742 1,090,620 SH   SOLE   757,335 0 333,285
Fleetmatics Group PLC COM G35569105 21,579 359,770 SH   SOLE   332,940 0 26,830
Flowers Foods, Inc. COM 343498101 72,716 4,809,230 SH   SOLE   4,284,095 0 525,135
Fortinet, Inc. COM 34959E109 35,449 959,890 SH   SOLE   854,610 0 105,280
Forum Energy Technologies, Inc COM 34984V100 47,575 2,395,505 SH   SOLE   1,669,145 0 726,360
German American Bancorp, Inc. COM 373865104 13,898 357,000 SH   SOLE   243,775 0 113,225
Gilead Sciences, Inc. COM 375558103 316 4,000 SH   SOLE   4,000 0 0
Globus Medical, Inc. Class A COM 379577208 28,452 1,260,615 SH   SOLE   869,600 0 391,015
Gorman-Rupp Company COM 383082104 13,440 524,810 SH   SOLE   355,445 0 169,365
Guidewire Software, Inc. COM 40171V100 63,858 1,064,655 SH   SOLE   830,240 0 234,415
H.B. Fuller Company COM 359694106 25,863 556,545 SH   SOLE   386,430 0 170,115
Henry Schein, Inc. COM 806407102 16,806 103,115 SH   SOLE   92,025 0 11,090
Hibbett Sports, Inc. COM 428567101 28,447 712,960 SH   SOLE   491,020 0 221,940
ICU Medical, Inc. COM 44930G107 54,865 434,126 SH   SOLE   301,885 0 132,241
IDEX Corporation COM 45167R104 53,507 571,840 SH   SOLE   509,005 0 62,835
Independent Bank Corp. COM 453836108 33,504 619,410 SH   SOLE   428,710 0 190,700
Innospec Inc. COM 45768S105 50,263 826,565 SH   SOLE   574,390 0 252,175
Insulet Corporation COM 45784P101 33,473 817,620 SH   SOLE   567,735 0 249,885
Integra LifeSciences Holdings COM 457985208 134,358 1,627,599 SH   SOLE   1,219,760 0 407,839
J & J Snack Foods Corp. COM 466032109 21,643 181,687 SH   SOLE   127,120 0 54,567
J. M. Smucker Company COM 832696405 48,997 361,495 SH   SOLE   322,325 0 39,170
John Bean Technologies Corpora COM 477839104 37,074 525,505 SH   SOLE   367,105 0 158,400
John Wiley & Sons, Inc. Class COM 968223206 131,828 2,554,320 SH   SOLE   1,959,595 0 594,725
Laboratory Corporation of Amer COM 50540R409 73,495 534,590 SH   SOLE   476,090 0 58,500
Landstar System, Inc. COM 515098101 20,284 297,940 SH   SOLE   208,670 0 89,270
LogMeIn, Inc. COM 54142L109 86,047 951,955 SH   SOLE   659,090 0 292,865
Lydall, Inc. COM 550819106 48,323 945,095 SH   SOLE   657,695 0 287,400
Manitowoc Foodservice, Inc. COM 563568104 41,904 2,583,505 SH   SOLE   1,786,570 0 796,935
Masimo Corporation COM 574795100 49,920 839,125 SH   SOLE   580,995 0 258,130
Mead Johnson Nutrition Company COM 582839106 49,429 625,605 SH   SOLE   557,670 0 67,935
Medidata Solutions, Inc. COM 58471A105 95,214 1,707,565 SH   SOLE   1,301,935 0 405,630
Mentor Graphics Corporation COM 587200106 42,682 1,614,285 SH   SOLE   1,124,265 0 490,020
Mettler-Toledo International I COM 592688105 19,052 45,380 SH   SOLE   40,480 0 4,900
Molson Coors Brewing Company C COM 60871R209 51,112 465,505 SH   SOLE   414,035 0 51,470
Monsanto Company COM 61166W101 204 2,000 SH   SOLE   2,000 0 0
NIC Inc. COM 62914B100 38,223 1,626,531 SH   SOLE   1,131,540 0 494,991
Navigators Group, Inc. COM 638904102 33,876 349,525 SH   SOLE   242,305 0 107,220
Northern Trust Corporation COM 665859104 72,037 1,059,520 SH   SOLE   943,580 0 115,940
NuVasive, Inc. COM 670704105 115,882 1,738,405 SH   SOLE   1,320,560 0 417,845
Omnicell, Inc. COM 68213N109 50,578 1,320,570 SH   SOLE   915,165 0 405,405
PTC Inc. COM 69370C100 71,806 1,620,540 SH   SOLE   1,446,735 0 173,805
Palo Alto Networks, Inc. COM 697435105 70,946 445,280 SH   SOLE   396,550 0 48,730
Parker-Hannifin Corporation COM 701094104 44,389 353,610 SH   SOLE   314,745 0 38,865
PayPal Holdings Inc COM 70450Y103 274 6,700 SH   SOLE   6,700 0 0
Phillips 66 COM 718546104 266 3,300 SH   SOLE   3,300 0 0
Potash Corporation of Saskatch COM 73755L107 258 15,800 SH   SOLE   15,800 0 0
Prosperity Bancshares, Inc.(R) COM 743606105 105,260 1,917,650 SH   SOLE   1,553,585 0 364,065
Qualys, Inc. COM 74758T303 77,985 2,042,030 SH   SOLE   1,422,335 0 619,695
RBC Bearings Incorporated COM 75524B104 42,176 551,465 SH   SOLE   382,575 0 168,890
Raven Industries, Inc. COM 754212108 3,377 146,632 SH   SOLE   98,242 0 48,390
Red Hat, Inc. COM 756577102 80,706 998,470 SH   SOLE   889,130 0 109,340
Ritchie Bros. Auctioneers Inco COM 767744105 54,507 1,554,240 SH   SOLE   1,104,290 0 449,950
Rockwell Automation, Inc. COM 773903109 89,118 728,445 SH   SOLE   649,340 0 79,105
SPS Commerce, Inc. COM 78463M107 42,592 580,190 SH   SOLE   404,610 0 175,580
SVB Financial Group COM 78486Q101 30,814 278,755 SH   SOLE   247,905 0 30,850
Sally Beauty Holdings, Inc. COM 79546E104 66,771 2,600,130 SH   SOLE   2,314,065 0 286,065
Sensient Technologies Corporat COM 81725T100 20,678 272,800 SH   SOLE   188,400 0 84,400
Snyder's-Lance, Inc. COM 833551104 126,403 3,764,225 SH   SOLE   2,888,685 0 875,540
Splunk Inc. COM 848637104 59,554 1,014,895 SH   SOLE   904,750 0 110,145
St. Jude Medical, Inc. COM 790849103 55,615 697,285 SH   SOLE   614,970 0 82,315
Standex International Corporat COM 854231107 49,464 532,620 SH   SOLE   371,135 0 161,485
Stericycle, Inc. COM 858912108 40,911 510,495 SH   SOLE   453,545 0 56,950
Steris PLC COM G84720104 75,118 1,027,600 SH   SOLE   915,160 0 112,440
Stock Yards Bancorp, Inc. COM 861025104 25,790 782,462 SH   SOLE   535,122 0 247,340
Suncor Energy Inc. COM 867224107 264 9,500 SH   SOLE   9,500 0 0
Synopsys, Inc. COM 871607107 31,365 528,480 SH   SOLE   469,610 0 58,870
Tableau Software, Inc. Class A COM 87336U105 34,077 616,555 SH   SOLE   548,920 0 67,635
Teleflex Incorporated COM 879369106 14,183 84,395 SH   SOLE   74,770 0 9,625
TreeHouse Foods, Inc. COM 89469A104 165,079 1,893,330 SH   SOLE   1,493,950 0 399,380
TriMas Corporation COM 896215209 54,653 2,936,775 SH   SOLE   2,030,765 0 906,010
U.S. Bancorp COM 902973304 386 9,000 SH   SOLE   9,000 0 0
UMB Financial Corporation COM 902788108 62,774 1,055,910 SH   SOLE   732,110 0 323,800
W.W. Grainger, Inc. COM 384802104 81,223 361,250 SH   SOLE   321,870 0 39,380
WEX Inc. COM 96208T104 167,281 1,547,610 SH   SOLE   1,225,350 0 322,260
Wal-Mart Stores, Inc. COM 931142103 404 5,600 SH   SOLE   5,600 0 0
Washington Trust Bancorp, Inc. COM 940610108 31,480 782,700 SH   SOLE   544,195 0 238,505
Waters Corporation COM 941848103 49,666 313,370 SH   SOLE   279,310 0 34,060
Wells Fargo & Company COM 949746101 310 7,000 SH   SOLE   7,000 0 0
Westinghouse Air Brake Technol COM 929740108 34,795 426,150 SH   SOLE   379,440 0 46,710
Whole Foods Market, Inc. COM 966837106 61,657 2,174,850 SH   SOLE   1,937,880 0 236,970
Wolverine World Wide, Inc. COM 978097103 91,754 3,984,105 SH   SOLE   2,755,515 0 1,228,590
Woodward, Inc COM 980745103 44,573 713,400 SH   SOLE   501,245 0 212,155
Workday, Inc. Class A COM 98138H101 59,471 648,610 SH   SOLE   577,350 0 71,260
Diageo plc Sponsored ADR ADR 25243Q205 441 3,800 SH   SOLE   3,800 0 0
Teva Pharmaceutical Industries ADR 881624209 299 6,500 SH   SOLE   6,500 0 0
Unilever PLC Sponsored ADR ADR 904767704 256 5,400 SH   SOLE   5,400 0 0