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

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COLUMN 1COLUMN 2COLUMN 3COLUMN 4COLUMN 5COLUMN 6COLUMN 7COLUMN 8
VALUESHRS ORSH/PUT/INVESTMENTOTHERVOTING AUTHORITY
NAME OF ISSUERTITLE OF CLASSCUSIP(x$1000)PRN AMTPRNCALLDISCRETIONMANAGERSOLESHAREDNONE
AAON INCCOM PAR $0.00400036020623,313356,797SH SOLE 326,107030,690
ACCENTURE PLC IRELANDSHS CLASS AG1151C10159,158184,916SH SOLE 30,2110154,705
ACI WORLDWIDE INCCOM00449810137,4101,217,366SH SOLE 1,107,3240110,042
ACUITY BRANDS INCCOM00508Y102187,3001,080,347SH SOLE 1,051,729028,618
ADOBE SYSTEMS INCORPORATEDCOM00724F101171,316297,569SH SOLE 71,2350226,334
ADVANCED DRAIN SYS INC DELCOM00790R10479,961739,215SH SOLE 726,173013,042
AFFILIATED MANAGERS GROUP INCOM008252108354,1112,343,710SH SOLE 2,293,296050,414
AIR PRODS & CHEMS INCCOM00915810695,100371,325SH SOLE 57,0860314,239
ALAMO GROUP INCCOM01131110732,445232,531SH SOLE 211,575020,956
ALPHABET INCCAP STK CL C02079K107553,105207,520SH SOLE 69,1560138,364
AMERICAN TOWER CORP NEWCOM03027X100271,4621,022,801SH SOLE 259,9230762,878
AMETEK INCCOM03110010059,004475,804SH SOLE 232,9740242,830
AMPHENOL CORP NEWCL A032095101212,0942,896,266SH SOLE 788,73202,107,534
AON PLCSHS CL AG0403H10898,959346,290SH SOLE 57,6720288,618
APTARGROUP INCCOM038336103395,7293,315,698SH SOLE 3,242,108073,590
ARAMARKCOM03852U106559,24117,018,908SH SOLE 15,460,92501,557,983
ARTISAN PARTNERS ASSET MGMTCL A04316A10843,463888,448SH SOLE 800,873087,575
AUTODESK INCCOM05276910650,196176,021SH SOLE 85,081090,940
BALCHEM CORPCOM05766520029,497203,326SH SOLE 188,239015,087
BALL CORPCOM058498106151,5581,684,537SH SOLE 467,31901,217,218
BEACON ROOFING SUPPLY INCCOM07368510954,5891,142,990SH SOLE 1,036,4240106,566
BIO-TECHNE CORPCOM09073M104238,364491,909SH SOLE 479,342012,567
BLACK KNIGHT INCCOM09215C105199,0542,764,643SH SOLE 2,715,502049,141
BLACKBAUD INCCOM09227Q100271,8583,864,369SH SOLE 3,716,6180147,751
BOOZ ALLEN HAMILTON HLDG CORCL A099502106239,6813,020,560SH SOLE 2,952,679067,881
BROADRIDGE FINL SOLUTIONS INCOM11133T103210,1111,260,868SH SOLE 1,232,102028,766
BROWN & BROWN INCCOM115236101381,8726,886,786SH SOLE 6,752,2750134,511
BURLINGTON STORES INCCOM122017106140,883496,820SH SOLE 484,687012,133
CACI INTL INCCL A127190304325,2501,240,937SH SOLE 1,214,572026,365
CARLISLE COS INCCOM142339100626,7983,153,066SH SOLE 3,080,140072,926
CASEYS GEN STORES INCCOM147528103148,911790,191SH SOLE 774,367015,824
CASS INFORMATION SYS INCCOM14808P10922,835545,629SH SOLE 496,750048,879
CBIZ INCCOM12480510240,4931,252,115SH SOLE 1,122,3730129,742
CDW CORPCOM12514G108131,100720,253SH SOLE 344,0040376,249
CENTRAL GARDEN & PET COCOM15352710631,865663,854SH SOLE 603,698060,156
SCHWAB CHARLES CORPCOM80851310582,3201,130,154SH SOLE 170,7430959,411
CHOICE HOTELS INTL INCCOM169905106453,5823,589,321SH SOLE 3,465,9410123,380
COLUMBIA SPORTSWEAR COCOM198516106287,5633,000,449SH SOLE 2,898,8580101,591
COMMVAULT SYS INCCOM20416610227,159360,627SH SOLE 327,497033,130
COOPER COS INCCOM NEW216648402116,015280,698SH SOLE 135,6320145,066
COSTCO WHSL CORP NEWCOM22160K10577,457172,375SH SOLE 28,4730143,902
CROWN CASTLE INTL CORP NEWCOM22822V10181,679471,261SH SOLE 77,3200393,941
DANAHER CORPORATIONCOM235851102451,5881,483,339SH SOLE 446,52501,036,814
DECKERS OUTDOOR CORPCOM243537107152,031422,074SH SOLE 412,37009,704
DENTSPLY SIRONA INCCOM24906P109432,0867,443,336SH SOLE 6,685,8600757,476
DIAGEO PLCSPON ADR NEW25243Q20591,862475,969SH SOLE 230,5010245,468
DOLBY LABORATORIES INCCOM CL A25659T107287,5933,268,097SH SOLE 3,198,088070,009
DOLLAR GEN CORP NEWCOM256677105264,6801,247,667SH SOLE 297,2280950,439
DONALDSON INCCOM257651109133,5712,326,610SH SOLE 2,270,405056,205
DORMAN PRODS INCCOM25827810061,559650,244SH SOLE 595,126055,118
ECOLAB INCCOM278865100237,1361,136,688SH SOLE 277,6270859,061
ELECTRONIC ARTS INCCOM28551210984,572594,532SH SOLE 97,8590496,673
EMERGENT BIOSOLUTIONS INCCOM29089Q10521,928437,951SH SOLE 400,828037,123
ENVESTNET INCCOM29404K10654,674681,378SH SOLE 624,364057,014
ENVISTA HOLDINGS CORPORATIONCOM29415F104475,61711,375,673SH SOLE 11,109,6420266,031
EPLUS INCCOM29426810735,862349,498SH SOLE 317,751031,747
LAUDER ESTEE COS INCCL A518439104129,400431,434SH SOLE 67,9020363,532
EXPONENT INCCOM30214U10245,887405,542SH SOLE 368,568036,974
FACEBOOK INCCL A30303M10253,780158,461SH SOLE 158,46100
FACTSET RESH SYS INCCOM303075105160,527406,623SH SOLE 396,210010,413
FIDELITY NATL INFORMATION SVCOM31620M106103,336849,243SH SOLE 139,1870710,056
FISERV INCCOM337738108360,4203,321,840SH SOLE 1,249,35102,072,489
FORWARD AIR CORPCOM34985310149,815600,034SH SOLE 544,814055,220
FRONTDOOR INCCOM35905A109172,1844,109,409SH SOLE 3,964,6330144,776
FTI CONSULTING INCCOM30294110953,808399,462SH SOLE 357,733041,729
GARTNER INCCOM366651107632,6712,081,975SH SOLE 1,396,2730685,702
GLOBAL PMTS INCCOM37940X102111,403706,963SH SOLE 345,6740361,289
GODADDY INCCL A380237107154,5732,217,691SH SOLE 1,730,4990487,192
GRACO INCCOM384109104154,6012,209,534SH SOLE 2,157,779051,755
HAMILTON LANE INCCL A40749710627,329322,205SH SOLE 292,720029,485
FULLER H B COCOM35969410625,983402,456SH SOLE 365,695036,761
HENRY SCHEIN INCCOM806407102123,0771,616,035SH SOLE 1,581,195034,840
HEXCEL CORP NEWCOM428291108288,8094,862,928SH SOLE 4,743,2110119,717
HOULIHAN LOKEY INCCL A44159310071,133772,349SH SOLE 702,285070,064
HURON CONSULTING GROUP INCCOM44746210235,251677,899SH SOLE 620,637057,262
IAA INCCOM449253103309,1185,664,618SH SOLE 5,531,4950133,123
ICU MED INCCOM44930G10789,815384,846SH SOLE 348,737036,109
IDEX CORPCOM45167R104330,2971,596,024SH SOLE 1,162,8780433,146
IHS MARKIT LTDSHSG47567105186,1911,596,564SH SOLE 419,07901,177,485
INSIGHT ENTERPRISES INCCOM45765U10325,204279,791SH SOLE 254,193025,598
INTEGRA LIFESCIENCES HLDGS CCOM NEW45798520864,450941,147SH SOLE 847,687093,460
INTER PARFUMS INCCOM45833410966,979895,798SH SOLE 814,315081,483
INTERCONTINENTAL EXCHANGE INCOM45866F104235,4672,050,752SH SOLE 474,56201,576,190
INTUITCOM461202103215,391399,235SH SOLE 105,8750293,360
INTUITIVE SURGICAL INCCOM NEW46120E60242,46542,715SH SOLE 7,056035,659
ISHARES TRRUS 1000 ETF46428762216,27067,312SH SOLE 173067,139
ISHARES TRRUS 1000 GRW ETF464287614226826SH SOLE 00826
ISHARES TRRUSSELL 2000 ETF4642876552,92813,387SH SOLE 822012,565
J & J SNACK FOODS CORPCOM46603210948,791319,269SH SOLE 291,080028,189
HENRY JACK & ASSOC INCCOM426281101146,452892,671SH SOLE 872,234020,437
HUNT J B TRANS SVCS INCCOM445658107462,7132,767,091SH SOLE 2,700,580066,511
JONES LANG LASALLE INCCOM48020Q107346,6341,397,210SH SOLE 1,364,791032,419
KAR AUCTION SVCS INCCOM48238T10925,5591,559,449SH SOLE 1,416,9600142,489
KINSALE CAP GROUP INCCOM49714P10870,488435,921SH SOLE 406,642029,279
KIRBY CORPCOM497266106213,4834,451,281SH SOLE 4,306,4390144,842
LABORATORY CORP AMER HLDGSCOM NEW50540R40952,419186,252SH SOLE 28,2520158,000
LANCASTER COLONY CORPCOM51384710322,469133,105SH SOLE 120,150012,955
LANDSTAR SYS INCCOM515098101334,7952,121,373SH SOLE 2,050,750070,623
LENNOX INTL INCCOM526107107316,9461,077,426SH SOLE 1,053,260024,166
LINDE PLCSHSG5494J103204,663697,604SH SOLE 189,9090507,695
LKQ CORPCOM501889208248,7174,942,703SH SOLE 4,825,5350117,168
LOWES COS INCCOM54866110789,740442,374SH SOLE 72,4980369,876
MANHATTAN ASSOCIATES INCCOM562750109265,2161,733,100SH SOLE 1,688,535044,565
MARKEL CORPCOM570535104482,056403,350SH SOLE 349,462053,888
MARSH & MCLENNAN COS INCCOM571748102194,2631,282,856SH SOLE 342,9650939,891
MARTIN MARIETTA MATLS INCCOM57328410671,490209,232SH SOLE 102,3620106,870
MASTERCARD INCORPORATEDCL A57636Q104307,751885,155SH SOLE 216,7530668,402
MCGRATH RENTCORPCOM58058910925,362352,496SH SOLE 320,161032,335
MESA LABS INCCOM59064R10941,830138,346SH SOLE 127,694010,652
MICROSOFT CORPCOM594918104386,8461,372,185SH SOLE 365,39001,006,795
MONDELEZ INTL INCCL A60920710561,0321,049,019SH SOLE 163,7100885,309
MONRO INCCOM61023610130,082523,067SH SOLE 475,393047,674
MOODYS CORPCOM61536910540,157113,082SH SOLE 18,861094,221
MOOG INCCL A61539420251,222671,946SH SOLE 602,080069,866
MORNINGSTAR INCCOM617700109285,1201,100,720SH SOLE 1,073,942026,778
NATIONAL INSTRS CORPCOM63651810235,601907,486SH SOLE 837,235070,251
NATIONAL RESH CORPCOM NEW63737220225,666608,623SH SOLE 552,820055,803
NIKE INCCL B654106103100,305690,666SH SOLE 112,9190577,747
NORDSON CORPCOM655663102283,1401,188,914SH SOLE 1,162,225026,689
OREILLY AUTOMOTIVE INCCOM67103H107209,553342,934SH SOLE 103,3710239,563
PATTERSON COS INCCOM70339510321,156701,930SH SOLE 643,211058,719
PEPSICO INCCOM71344810869,825464,234SH SOLE 68,7570395,477
PERFICIENT INCCOM71375U10140,513350,152SH SOLE 318,913031,239
PINNACLE FINL PARTNERS INCCOM72346Q10436,362386,501SH SOLE 352,106034,395
POOL CORPCOM73278L105156,506360,272SH SOLE 350,85509,417
POWER INTEGRATIONS INCCOM73927610347,356478,391SH SOLE 434,420043,971
PROSPERITY BANCSHARES INCCOM743606105188,4792,649,784SH SOLE 2,590,552059,232
QUALYS INCCOM74758T30369,666625,987SH SOLE 569,101056,886
RAVEN INDS INCCOM75421210844,013763,974SH SOLE 689,426074,548
RLI CORPCOM74960710737,735376,334SH SOLE 341,373034,961
ROGERS CORPCOM77513310124,970133,901SH SOLE 121,676012,225
ROSS STORES INCCOM77829610391,998845,177SH SOLE 417,5400427,637
RPM INTL INCCOM749685103337,9764,352,561SH SOLE 4,257,750094,811
S&P GLOBAL INCCOM78409V10460,119141,493SH SOLE 23,2740118,219
SALLY BEAUTY HLDGS INCCOM79546E10425,6141,520,145SH SOLE 1,376,2980143,847
SEI INVTS COCOM784117103379,1516,393,770SH SOLE 6,251,0310142,739
SELECTIVE INS GROUP INCCOM81630010756,175743,749SH SOLE 675,145068,604
SERVICE CORP INTLCOM817565104154,1782,558,551SH SOLE 2,508,686049,865
SHERWIN WILLIAMS COCOM82434810697,306347,858SH SOLE 163,3220184,536
SILGAN HOLDINGS INCCOM82704810936,377948,317SH SOLE 855,698092,619
SIMPSON MFG INCCOM82907310540,987383,163SH SOLE 350,840032,323
SOUTHSTATE CORPORATIONCOM84044110939,300526,314SH SOLE 476,468049,846
SPROUTS FMRS MKT INCCOM85208M10217,129739,261SH SOLE 671,821067,440
STARBUCKS CORPCOM855244109110,9371,005,680SH SOLE 161,9980843,682
STEPAN COCOM85858610022,754201,467SH SOLE 182,190019,277
STERIS PLCSHS USDG8473T10087,639429,014SH SOLE 202,1910226,823
TE CONNECTIVITY LTDREG SHSH8498910467,506491,958SH SOLE 80,7740411,184
TECHTARGET INCCOM87874R10031,684384,424SH SOLE 349,159035,265
TELEFLEX INCORPORATEDCOM879369106191,446508,420SH SOLE 345,2300163,190
TERMINIX GLOBAL HOLDINGS INCCOM88087E100376,3259,031,085SH SOLE 8,817,1840213,901
TEXAS INSTRS INCCOM88250810475,419392,379SH SOLE 68,1210324,258
THERMO FISHER SCIENTIFIC INCCOM883556102474,699830,866SH SOLE 250,0630580,803
TJX COS INC NEWCOM872540109425,9636,455,941SH SOLE 2,206,46804,249,473
TRANSUNIONCOM89400J10774,624664,445SH SOLE 315,4420349,003
TRIMBLE INCCOM896239100169,3962,059,522SH SOLE 2,012,604046,918
ULTA BEAUTY INCCOM90384S303306,363848,840SH SOLE 828,844019,996
UMPQUA HLDGS CORPCOM904214103209,47010,344,175SH SOLE 9,971,4650372,710
UNIFIRST CORP MASSCOM90470810449,037230,630SH SOLE 211,189019,441
US BANCORP DELCOM NEW902973304115,1981,938,048SH SOLE 921,21801,016,830
US ECOLOGY INCCOM91734M10319,653607,516SH SOLE 556,223051,293
VERISK ANALYTICS INCCOM92345Y106362,8591,811,849SH SOLE 505,39901,306,450
VISA INCCOM CL A92826C839437,9801,966,241SH SOLE 621,13901,345,102
WESTAMERICA BANCORPORATIONCOM95709010326,263466,812SH SOLE 427,469039,343
WEX INCCOM96208T104443,5222,518,008SH SOLE 2,458,990059,018
WHITE MTNS INS GROUP LTDCOMG9618E107188,698176,418SH SOLE 89,307087,111
WOLVERINE WORLD WIDE INCCOM97809710343,6091,461,438SH SOLE 1,327,1800134,258
WOODWARD INCCOM980745103161,6531,428,028SH SOLE 1,399,893028,135
BERKLEY W R CORPCOM084423102693,4219,475,555SH SOLE 9,262,7530212,802
XYLEM INCCOM98419M100185,4921,499,774SH SOLE 397,62601,102,148
YETI HLDGS INCCOM98585X10417,297201,861SH SOLE 183,866017,995
ZOETIS INCCL A98978V103285,4331,470,241SH SOLE 375,93401,094,307