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
AMETEK, Inc. COM 031100100 119,304 1,507,885 SH   SOLE   1,370,320 0 137,565
ANSYS, Inc. COM 03662Q105 71,937 385,350 SH   SOLE   349,420 0 35,930
Actuant Corporation Class A COM 00508X203 5,292 189,690 SH   SOLE   134,125 0 55,565
Advance Auto Parts, Inc. COM 00751Y106 108,469 644,385 SH   SOLE   585,095 0 59,290
Akamai Technologies, Inc. COM 00971T101 30,750 420,365 SH   SOLE   380,890 0 39,475
Altra Industrial Motion Corp. COM 02208R106 52,562 1,272,680 SH   SOLE   891,595 0 381,085
Aptargroup, Inc. COM 038336103 199,063 1,847,625 SH   SOLE   1,678,960 0 168,665
Argo Group International Holdi COM G0464B107 105,589 1,674,693 SH   SOLE   1,176,263 0 498,430
Arthur J. Gallagher & Co. COM 363576109 163,569 2,197,325 SH   SOLE   1,995,130 0 202,195
Avanos Medical, Inc. COM 05350V106 107,271 1,565,996 SH   SOLE   1,098,491 0 467,505
B&G Foods, Inc. COM 05508R106 81,382 2,964,736 SH   SOLE   2,081,096 0 883,640
Bio-Techne Corporation COM 09073M104 121,269 594,135 SH   SOLE   544,285 0 49,850
Blackbaud, Inc. COM 09227Q100 245,519 2,419,380 SH   SOLE   1,942,990 0 476,390
Boston Beer Company, Inc. Clas COM 100557107 40,638 141,350 SH   SOLE   98,830 0 42,520
Bryn Mawr Bank Corporation COM 117665109 40,442 862,295 SH   SOLE   600,445 0 261,850
CONMED Corporation COM 207410101 108,979 1,375,655 SH   SOLE   964,560 0 411,095
CVB Financial Corp. COM 126600105 51,068 2,287,980 SH   SOLE   1,602,945 0 685,035
Campbell Soup Company COM 134429109 68,819 1,878,765 SH   SOLE   1,706,695 0 172,070
Cantel Medical Corp. COM 138098108 18,533 201,310 SH   SOLE   142,000 0 59,310
Cardiovascular Systems, Inc. COM 141619106 93,646 2,392,580 SH   SOLE   1,672,720 0 719,860
Catalent Inc COM 148806102 177,702 3,901,245 SH   SOLE   3,231,310 0 669,935
Chase Corporation COM 16150R104 8,326 69,300 SH   SOLE   48,250 0 21,050
Commerce Bancshares, Inc. COM 200525103 74,354 1,126,230 SH   SOLE   1,026,650 0 99,580
Community Bank System, Inc. COM 203607106 50,814 832,055 SH   SOLE   584,250 0 247,805
Cooper Companies, Inc. COM 216648402 122,133 440,675 SH   SOLE   403,270 0 37,405
Cullen/Frost Bankers, Inc. COM 229899109 96,874 927,555 SH   SOLE   841,605 0 85,950
DENTSPLY SIRONA, Inc. COM 24906P109 94,829 2,512,695 SH   SOLE   2,281,940 0 230,755
Despegar.com, Corp. COM G27358103 715 42,370 SH   SOLE   42,370 0 0
Edwards Lifesciences Corporati COM 28176E108 114,726 658,965 SH   SOLE   597,755 0 61,210
El Pollo Loco Holdings Inc COM 268603107 17,413 1,387,520 SH   SOLE   956,930 0 430,590
Envestnet, Inc. COM 29404K106 24,055 394,665 SH   SOLE   276,945 0 117,720
Everest Re Group, Ltd. COM G3223R108 192,832 844,015 SH   SOLE   766,495 0 77,520
First Financial Bankshares, In COM 32020R109 30,298 512,655 SH   SOLE   361,850 0 150,805
Flowers Foods, Inc. COM 343498101 134,439 7,204,665 SH   SOLE   6,544,625 0 660,040
Fortive Corp. COM 34959J108 106,443 1,264,165 SH   SOLE   1,140,445 0 123,720
Gates Industrial Corporation p COM G39108108 104,039 5,335,315 SH   SOLE   4,846,525 0 488,790
German American Bancorp, Inc. COM 373865104 39,030 1,106,290 SH   SOLE   777,025 0 329,265
Guidewire Software, Inc. COM 40171V100 88,848 879,600 SH   SOLE   795,680 0 83,920
H.B. Fuller Company COM 359694106 94,885 1,836,375 SH   SOLE   1,286,555 0 549,820
HealthEquity Inc COM 42226A107 8,544 90,500 SH   SOLE   0 0 90,500
Helen of Troy Limited COM G4388N106 108,782 831,035 SH   SOLE   582,355 0 248,680
Henry Schein, Inc. COM 806407102 61,300 720,920 SH   SOLE   653,470 0 67,450
Hibbett Sports, Inc. COM 428567101 13,704 728,935 SH   SOLE   528,995 0 199,940
Hormel Foods Corporation COM 440452100 187,298 4,753,765 SH   SOLE   4,317,395 0 436,370
Hostess Brands, Inc. Class A COM 44109J106 70,381 6,357,810 SH   SOLE   4,456,880 0 1,900,930
IDEX Corporation COM 45167R104 66,746 443,025 SH   SOLE   402,610 0 40,415
Independent Bank Corp. COM 453836108 62,493 756,575 SH   SOLE   533,170 0 223,405
Innospec Inc. COM 45768S105 73,063 951,960 SH   SOLE   668,635 0 283,325
Insulet Corporation COM 45784P101 76,672 723,660 SH   SOLE   507,960 0 215,700
Integra LifeSciences Holdings COM 457985208 351,916 5,342,585 SH   SOLE   4,365,200 0 977,385
International Flavors & Fragra COM 459506101 115,121 827,495 SH   SOLE   748,110 0 79,385
J & J Snack Foods Corp. COM 466032109 24,658 163,420 SH   SOLE   116,255 0 47,165
J.M. Smucker Company COM 832696405 92,107 897,645 SH   SOLE   815,610 0 82,035
James River Group Holdings Ltd COM G5005R107 23,285 546,335 SH   SOLE   381,710 0 164,625
John Bean Technologies Corpora COM 477839104 117,248 982,800 SH   SOLE   686,255 0 296,545
John Wiley & Sons, Inc. Class COM 968223206 223,416 3,686,730 SH   SOLE   2,939,825 0 746,905
Laboratory Corporation of Amer COM 50540R409 122,405 704,775 SH   SOLE   640,775 0 64,000
LogMeIn, Inc. COM 54142L109 136,551 1,532,555 SH   SOLE   1,224,405 0 308,150
Lydall, Inc. COM 550819106 56,266 1,305,485 SH   SOLE   915,430 0 390,055
MGP Ingredients, Inc. COM 55303J106 23,186 293,565 SH   SOLE   205,350 0 88,215
MINDBODY, Inc. Class A COM 60255W105 15,983 393,180 SH   SOLE   266,565 0 126,615
MSA Safety, Inc. COM 553498106 72,688 682,900 SH   SOLE   479,830 0 203,070
Masimo Corporation COM 574795100 88,052 707,020 SH   SOLE   577,875 0 129,145
McCormick & Company, Incorpora COM 579780206 118,792 901,645 SH   SOLE   820,325 0 81,320
Medidata Solutions, Inc. COM 58471A105 157,680 2,150,860 SH   SOLE   1,732,310 0 418,550
Molson Coors Brewing Company C COM 60871R209 103,676 1,685,795 SH   SOLE   1,541,835 0 143,960
Morningstar, Inc. COM 617700109 35,333 280,640 SH   SOLE   255,460 0 25,180
Navigators Group, Inc. COM 638904102 88,666 1,283,155 SH   SOLE   903,605 0 379,550
New Relic, Inc. COM 64829B100 99,280 1,053,590 SH   SOLE   738,400 0 315,190
Nordson Corporation COM 655663102 177,098 1,275,000 SH   SOLE   1,157,325 0 117,675
Northern Trust Corporation COM 665859104 168,361 1,648,495 SH   SOLE   1,495,640 0 152,855
NuVasive, Inc. COM 670704105 224,098 3,157,205 SH   SOLE   2,552,405 0 604,800
Okta, Inc. Class A COM 679295105 206,856 2,939,960 SH   SOLE   2,353,500 0 586,460
Omnicell, Inc. COM 68213N109 69,294 963,760 SH   SOLE   677,410 0 286,350
Palo Alto Networks, Inc. COM 697435105 171,457 761,150 SH   SOLE   691,215 0 69,935
Penumbra, Inc. COM 70975L107 68,481 457,455 SH   SOLE   320,860 0 136,595
Prestige Consumer Healthcare I COM 74112D101 78,756 2,078,545 SH   SOLE   1,462,290 0 616,255
Prosperity Bancshares, Inc.(R) COM 743606105 139,801 2,015,875 SH   SOLE   1,648,225 0 367,650
Pure Storage, Inc. Class A COM 74624M102 186,160 7,173,790 SH   SOLE   5,568,625 0 1,605,165
Q2 Holdings, Inc. COM 74736L109 50,860 839,970 SH   SOLE   591,545 0 248,425
Qualys, Inc. COM 74758T303 82,367 924,430 SH   SOLE   649,475 0 274,955
Red Hat, Inc. COM 756577102 175,115 1,284,965 SH   SOLE   1,163,725 0 121,240
Ritchie Bros. Auctioneers Inco COM 767744105 250,480 6,932,750 SH   SOLE   5,572,680 0 1,360,070
Rockwell Automation, Inc. COM 773903109 125,639 670,005 SH   SOLE   607,705 0 62,300
SVB Financial Group COM 78486Q101 43,123 138,735 SH   SOLE   125,945 0 12,790
Sally Beauty Holdings, Inc. COM 79546E104 132,308 7,194,560 SH   SOLE   5,909,015 0 1,285,545
Sensient Technologies Corporat COM 81725T100 129,430 1,691,675 SH   SOLE   1,188,180 0 503,495
Simply Good Foods Co COM 82900L102 52,093 2,678,325 SH   SOLE   1,880,640 0 797,685
Splunk Inc. COM 848637104 212,143 1,754,555 SH   SOLE   1,594,440 0 160,115
Standex International Corporat COM 854231107 69,254 664,305 SH   SOLE   462,845 0 201,460
Stericycle, Inc. COM 858912108 86,758 1,478,493 SH   SOLE   1,343,738 0 134,755
Stock Yards Bancorp, Inc. COM 861025104 29,964 825,456 SH   SOLE   577,856 0 247,600
Supernus Pharmaceuticals, Inc. COM 868459108 67,001 1,330,705 SH   SOLE   932,365 0 398,340
Synopsys, Inc. COM 871607107 86,239 874,542 SH   SOLE   795,057 0 79,485
Tableau Software, Inc. Class A COM 87336U105 101,086 904,655 SH   SOLE   822,030 0 82,625
Teladoc Health, Inc. COM 87918A105 69,712 807,315 SH   SOLE   542,145 0 265,170
Tractor Supply Company COM 892356106 142,828 1,571,610 SH   SOLE   1,428,320 0 143,290
TreeHouse Foods, Inc. COM 89469A104 157,463 3,290,770 SH   SOLE   2,701,920 0 588,850
TriMas Corporation COM 896215209 40,483 1,331,680 SH   SOLE   938,395 0 393,285
UMB Financial Corporation COM 902788108 93,022 1,312,015 SH   SOLE   918,945 0 393,070
Ulta Beauty Inc COM 90384S303 125,800 445,910 SH   SOLE   405,150 0 40,760
Valvoline Inc. COM 92047W101 85,338 3,967,365 SH   SOLE   3,596,405 0 370,960
Veeva Systems Inc Class A COM 922475108 140,247 1,288,210 SH   SOLE   1,166,710 0 121,500
Verisk Analytics Inc COM 92345Y106 136,231 1,130,080 SH   SOLE   1,030,270 0 99,810
Washington Trust Bancorp, Inc. COM 940610108 42,488 768,310 SH   SOLE   536,165 0 232,145
Waters Corporation COM 941848103 160,010 821,915 SH   SOLE   746,095 0 75,820
Welbilt Inc COM 949090104 124,576 5,966,285 SH   SOLE   4,178,275 0 1,788,010
West Pharmaceutical Services, COM 955306105 61,404 497,320 SH   SOLE   451,590 0 45,730
Wolverine World Wide, Inc. COM 978097103 76,144 1,949,915 SH   SOLE   1,360,825 0 589,090
Woodward, Inc. COM 980745103 97,514 1,205,965 SH   SOLE   850,340 0 355,625
Workday, Inc. Class A COM 98138H101 171,237 1,173,020 SH   SOLE   1,066,110 0 106,910
Yext, Inc. COM 98585N106 53,731 2,267,140 SH   SOLE   1,581,175 0 685,965
e.l.f. Beauty, Inc. COM 26856L103 46,067 3,618,795 SH   SOLE   2,536,160 0 1,082,635
Alibaba Group Holding Ltd. Spo ADR 01609W102 214 1,300 SH   SOLE   1,300 0 0
Ambev SA Sponsored ADR ADR 02319V103 62 13,600 SH   SOLE   13,600 0 0
Lexinfintech Holdings Ltd. Sp ADR 528877103 828 83,400 SH   SOLE   83,400 0 0
Noah Holdings Ltd. Sponsored A ADR 65487X102 624 14,815 SH   SOLE   14,815 0 0
Talend SA Sponsored ADR ADR 874224207 62,659 898,465 SH   SOLE   644,400 0 254,065