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
Estimated average burden
hours per response: 23.8
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
51job Inc SP ADR REP COM 316827104 39,273 645,399 SH   SOLE   551,663 0 93,736
58.com Inc COM 31680Q104 38,934 544,000 SH   SOLE   544,000 0 0
Adtalem Global Education Inc COM 00737L103 54,614 1,298,786 SH   SOLE   1,243,102 0 55,684
Advanced Energy Industries Inc COM 007973100 60,264 893,069 SH   SOLE   870,299 0 22,770
Agios Pharmaceuticals Inc COM 00847X104 43,456 760,116 SH   SOLE   713,180 0 46,936
Alarm.com Holdings Inc COM 011642105 5,991 158,700 SH   SOLE   130,850 0 27,850
Align Technology Inc COM 016255101 59,691 268,648 SH   SOLE   268,648 0 0
Alkermes PLC SHS G01767105 25,395 464,000 SH   SOLE   464,000 0 0
Alteryx Inc COM CL A 02156B103 39,469 1,561,897 SH   SOLE   1,460,880 0 101,017
Ambarella Inc COM G037AX101 31,439 535,129 SH   SOLE   498,184 0 36,945
Amedisys Inc COM 023436108 34,785 659,940 SH   SOLE   635,803 0 24,137
AMERCO COM 023586100 12,360 32,706 SH   SOLE   32,706 0 0
American Woodmark Corp COM 030506109 9,434 72,427 SH   SOLE   59,783 0 12,644
AMN Healthcare Services Inc COM 001744101 44,796 909,566 SH   SOLE   838,838 0 70,728
Anika Therapeutics Inc COM 035255108 12,754 236,571 SH   SOLE   195,272 0 41,299
ANSYS Inc COM 03662Q105 86,147 583,692 SH   SOLE   583,692 0 0
Apptio Inc CL A 03835C108 8,526 362,500 SH   SOLE   299,302 0 63,198
Ares Capital Corp COM 04010L103 40,079 2,549,524 SH   SOLE   2,549,524 0 0
Aspen Technology Inc COM 045327103 15,623 235,999 SH   SOLE   194,831 0 41,168
Atrion Corp COM 049904105 15,897 25,209 SH   SOLE   20,808 0 4,401
Avery Dennison Corp COM 053611109 32,125 279,691 SH   SOLE   279,691 0 0
AxoGen Inc COM 05463X106 10,093 356,637 SH   SOLE   297,048 0 59,589
Barnes Group Inc COM 067806109 14,171 223,977 SH   SOLE   184,876 0 39,101
Bio-Techne Corp COM 09073M104 34,316 264,889 SH   SOLE   254,958 0 9,931
Bioverativ Inc COM 09075E100 55,647 1,032,033 SH   SOLE   1,032,033 0 0
Black Knight Inc CL A 09215C105 18,862 427,215 SH   SOLE   427,215 0 0
Blackline Inc COM 09239B109 30,461 928,674 SH   SOLE   883,793 0 44,881
Boingo Wireless Inc COM 09739C102 21,727 965,652 SH   SOLE   965,652 0 0
BOK Financial Corp COM 05561Q201 23,098 250,194 SH   SOLE   250,194 0 0
Booz Allen Hamilton Holding Corp CL A 099502106 35,457 929,903 SH   SOLE   929,903 0 0
Bright Horizons Family Solutions Inc COM 109194100 47,724 507,705 SH   SOLE   487,442 0 20,263
Brink's Co/The COM 109696104 46,267 587,885 SH   SOLE   547,292 0 40,593
Broadridge Financial Solutions Inc COM 11133T103 27,116 299,357 SH   SOLE   299,357 0 0
Brooks Automation Inc COM 114340102 23,184 972,058 SH   SOLE   926,043 0 46,015
Brunswick Corp/DE COM 117043109 32,424 587,180 SH   SOLE   543,043 0 44,137
Cabot Microelectronics Corp COM 12709P103 13,596 144,518 SH   SOLE   119,289 0 25,229
Cadence Design Systems Inc COM 127387108 47,612 1,138,503 SH   SOLE   1,138,503 0 0
CAE Inc COM 124765108 58,706 3,159,713 SH   SOLE   2,849,068 0 310,645
Cambrex Corp COM 132011107 59,278 1,234,965 SH   SOLE   1,175,588 0 59,377
Camping World Holdings Inc CL A 13462K109 34,619 773,944 SH   SOLE   732,440 0 41,504
Carlisle Cos Inc COM 142339100 21,442 188,663 SH   SOLE   188,663 0 0
Cavco Industries Inc COM 149568107 27,625 181,027 SH   SOLE   173,855 0 7,172
Cboe Global Markets Inc COM 12503M108 20,241 162,460 SH   SOLE   162,460 0 0
CDW Corp/DE COM 12514G108 58,933 848,075 SH   SOLE   848,075 0 0
Cedar Fair LP COM 150185106 21,352 328,546 SH   SOLE   328,546 0 0
Celanese Corp COM SER A 150870103 42,021 392,429 SH   SOLE   392,429 0 0
Celldex Therapeutics Inc COM 15117B103 30,593 10,772,111 SH   SOLE   10,310,250 0 461,861
Chemed Corp COM 16359R103 8,801 36,214 SH   SOLE   34,650 0 1,564
China Lodging Group Ltd SPON ADR 16949N109 2,600 18,000 SH   SOLE   18,000 0 0
Cimarex Energy Co COM 171798101 17,983 147,390 SH   SOLE   147,390 0 0
Cintas Corp COM 172908105 25,154 161,422 SH   SOLE   161,422 0 0
Clovis Oncology Inc COM 189464100 35,020 514,996 SH   SOLE   490,790 0 24,206
Cognex Corp COM 192422103 50,274 822,000 SH   SOLE   822,000 0 0
Colliers International Group Inc SUB VTG SH 194693107 8,702 144,192 SH   SOLE   119,042 0 25,150
Cooper-Standard Holdings Inc COM 21676P103 58,138 474,597 SH   SOLE   458,323 0 16,274
Copart Inc COM 217204106 42,986 995,276 SH   SOLE   995,276 0 0
Core Laboratories NV COM N22717107 9,622 87,833 SH   SOLE   72,500 0 15,333
CoreCivic Inc COM 21871N101 37,070 1,647,553 SH   SOLE   1,579,042 0 68,511
CoreLogic Inc/United States COM 21871D103 25,225 545,886 SH   SOLE   520,027 0 25,859
CoStar Group Inc COM 22160N109 18,252 61,466 SH   SOLE   61,466 0 0
Credit Acceptance Corp COM 225310101 35,392 109,411 SH   SOLE   109,411 0 0
CyberArk Software Ltd SHS M2682V108 23,009 555,914 SH   SOLE   532,708 0 23,206
Dave & Buster's Entertainment Inc COM 238337109 61,472 1,114,226 SH   SOLE   1,053,609 0 60,617
Diamondback Energy Inc COM 25278X109 25,191 199,534 SH   SOLE   199,534 0 0
Domino's Pizza Inc COM 25754A201 26,045 137,833 SH   SOLE   137,833 0 0
Dorman Products Inc COM 258278100 11,836 193,596 SH   SOLE   159,799 0 33,797
Dunkin' Brands Group Inc COM 265504100 37,406 580,202 SH   SOLE   580,202 0 0
Eaton Vance Corp COM NON VTG 278265103 72,544 1,286,473 SH   SOLE   1,286,473 0 0
Education Realty Trust Inc COM 28140H203 30,769 881,114 SH   SOLE   881,114 0 0
Encompass Health Corp COM 421924309 117,102 2,370,011 SH   SOLE   2,283,193 0 86,818
Endologix Inc COM 29266S106 18,119 3,386,649 SH   SOLE   3,386,649 0 0
Entellus Medical Inc COM 29363K105 9,744 399,500 SH   SOLE   330,500 0 69,000
Equity LifeStyle Properties Inc COM 29472R108 18,273 205,266 SH   SOLE   205,266 0 0
ESCO Technologies Inc COM 296315104 9,213 152,911 SH   SOLE   126,217 0 26,694
Euronet Worldwide Inc COM 298736109 38,845 460,962 SH   SOLE   433,156 0 27,806
Evolent Health Inc CL A 30050B101 27,888 2,267,357 SH   SOLE   2,171,194 0 96,163
Expeditors International of Washington Inc COM 302130109 21,376 330,439 SH   SOLE   330,439 0 0
Extended Stay America Inc COM 30224P200 72,581 3,820,061 SH   SOLE   3,621,673 0 198,388
FactSet Research Systems Inc COM 303075105 31,760 164,763 SH   SOLE   164,763 0 0
First Busey Corp COM 319383204 17,680 590,514 SH   SOLE   487,425 0 103,089
FirstCash Inc COM 33767D105 25,159 373,007 SH   SOLE   341,302 0 31,705
Five Below Inc COM 33829M101 43,127 650,292 SH   SOLE   609,977 0 40,315
Gartner Inc COM 366651107 23,721 192,622 SH   SOLE   192,622 0 0
Genomic Health Inc COM 37244C101 54,762 1,601,233 SH   SOLE   1,548,920 0 52,313
Gentex Corp COM 371901109 20,656 985,983 SH   SOLE   985,983 0 0
GoDaddy Inc CL A 380237107 52,140 1,036,984 SH   SOLE   1,036,984 0 0
Graco Inc COM 384109104 48,821 1,079,634 SH   SOLE   1,079,634 0 0
Grand Canyon Education Inc COM 38526M106 35,674 398,464 SH   SOLE   398,464 0 0
Great Southern Bancorp Inc COM 390905107 10,081 195,171 SH   SOLE   161,099 0 34,072
Grupo Aeroportuario del Sureste SAB de CV SPON ADR SER B 40051E202 79,394 435,011 SH   SOLE   421,304 0 13,707
Guidewire Software Inc COM 40171V100 16,786 226,040 SH   SOLE   226,040 0 0
Haemonetics Corp COM 405024100 52,681 907,049 SH   SOLE   860,503 0 46,546
Hamilton Lane Inc CL A 407497106 15,311 432,636 SH   SOLE   359,343 0 73,293
Healthcare Services Group Inc COM 421906108 8,268 156,838 SH   SOLE   129,442 0 27,396
HealthEquity Inc COM 42226A107 13,492 289,149 SH   SOLE   238,671 0 50,478
HEICO Corp CL A 422806208 28,321 358,269 SH   SOLE   358,269 0 0
Hostess Brands Inc COM 44109J106 9,307 628,458 SH   SOLE   518,745 0 109,713
Houlihan Lokey Inc CL A 441593100 47,963 1,055,757 SH   SOLE   980,551 0 75,206
ICF International Inc COM 44925C103 10,429 198,642 SH   SOLE   163,964 0 34,678
IDEXX Laboratories Inc COM 45168D104 18,797 120,199 SH   SOLE   120,199 0 0
II-VI Inc COM 902104108 45,023 958,954 SH   SOLE   913,843 0 45,111
Inphi Corp COM 45772F107 33,641 919,141 SH   SOLE   885,201 0 33,940
Inter Parfums Inc COM 458334109 11,970 275,484 SH   SOLE   227,391 0 48,093
Intercept Pharmaceuticals Inc COM 45845P108 6,860 117,425 SH   SOLE   96,926 0 20,499
IPG Photonics Corp COM 44980X109 68,114 318,098 SH   SOLE   318,098 0 0
iRhythm Technologies Inc COM 450056106 45,318 808,522 SH   SOLE   759,318 0 49,204
iRobot Corp COM 462726100 44,716 582,995 SH   SOLE   546,957 0 36,038
JB Hunt Transport Services Inc COM 445658107 43,968 382,395 SH   SOLE   382,395 0 0
JELD-WEN Holding Inc COM 47580P103 19,685 500,000 SH   SOLE   500,000 0 0
Jones Lang LaSalle Inc COM 48020Q107 31,818 213,642 SH   SOLE   213,642 0 0
Knoll Inc COM 498904200 8,778 381,007 SH   SOLE   314,493 0 66,514
Lakeland Financial Corp COM 511656100 15,118 311,780 SH   SOLE   257,351 0 54,429
Lamar Advertising Co CL A 512816109 24,784 333,833 SH   SOLE   333,833 0 0
Laureate Education Inc CL A 518613203 7,138 526,369 SH   SOLE   434,478 0 91,891
Lazard Ltd SHS A G54050102 71,090 1,354,092 SH   SOLE   1,354,092 0 0
LCI Industries COM 50189K103 64,865 498,964 SH   SOLE   483,836 0 15,128
LegacyTexas Financial Group Inc COM 52471Y106 7,522 178,206 SH   SOLE   147,095 0 31,111
Leggett & Platt Inc COM 524660107 19,285 404,053 SH   SOLE   404,053 0 0
LeMaitre Vascular Inc COM 525558201 7,668 240,815 SH   SOLE   198,775 0 42,040
Liberty Global PLC SHS CL A G5480U104 13,054 364,223 SH   SOLE   364,223 0 0
Ligand Pharmaceuticals Inc COM 53220K504 42,346 309,254 SH   SOLE   288,378 0 20,876
LivaNova PLC SHS G5509L101 48,737 609,825 SH   SOLE   575,829 0 33,996
LKQ Corp COM 501889208 44,985 1,106,089 SH   SOLE   1,106,089 0 0
LogMeIn Inc COM 54142L109 10,452 91,283 SH   SOLE   75,369 0 15,914
Loxo Oncology Inc COM 548862101 38,360 455,685 SH   SOLE   435,899 0 19,786
MacroGenics Inc COM 556099109 7,790 410,002 SH   SOLE   338,426 0 71,576
ManpowerGroup Inc COM 56418H100 40,410 320,437 SH   SOLE   320,437 0 0
MarketAxess Holdings Inc COM 57060D108 33,078 163,954 SH   SOLE   163,954 0 0
Masimo Corp COM 574795100 102,911 1,213,569 SH   SOLE   1,184,220 0 29,349
MAXIMUS Inc COM 577933104 16,219 226,584 SH   SOLE   187,028 0 39,556
MB Financial Inc COM 55264U108 17,375 390,269 SH   SOLE   390,269 0 0
MCBC Holdings Inc COM 55276F107 6,938 312,244 SH   SOLE   257,734 0 54,510
Medidata Solutions Inc COM 58471A105 6,210 98,003 SH   SOLE   81,709 0 16,294
Mettler-Toledo International Inc COM 592688105 18,922 30,543 SH   SOLE   30,543 0 0
MGP Ingredients Inc COM 55303J106 8,413 109,426 SH   SOLE   90,329 0 19,097
Middleby Corp/The COM 596278101 44,419 329,150 SH   SOLE   329,150 0 0
Mimecast Ltd ORD SHS G14838109 30,661 1,069,452 SH   SOLE   992,999 0 76,453
MINDBODY Inc COM 60255W105 22,822 749,502 SH   SOLE   717,474 0 32,028
MKS Instruments Inc COM 55306N104 31,117 329,284 SH   SOLE   329,284 0 0
Monolithic Power Systems Inc COM 609839105 51,942 462,279 SH   SOLE   433,551 0 28,728
Monro Inc COM 610236101 28,302 496,955 SH   SOLE   473,396 0 23,559
Natus Medical Inc COM 639050103 43,909 1,149,442 SH   SOLE   1,117,136 0 32,306
NetEase Inc SPON ADR 64110W102 5,383 15,600 SH   SOLE   15,600 0 0
Netshoes Cayman Ltd COM G6455X107 4,817 609,798 SH   SOLE   359,579 0 250,219
New Oriental Education & Technology Group Inc SPON ADR 647581107 79,018 840,612 SH   SOLE   840,612 0 0
Nordson Corp COM 655663102 49,543 338,411 SH   SOLE   338,411 0 0
Nutanix Inc CL A 67059N108 17,931 508,253 SH   SOLE   508,253 0 0
NVR Inc COM 62944T105 21,400 6,100 SH   SOLE   6,100 0 0
OceanFirst Financial Corp COM 675234108 10,297 392,271 SH   SOLE   323,790 0 68,481
Old Dominion Freight Line Inc COM 679580100 70,355 534,818 SH   SOLE   534,818 0 0
OM Asset Management Plc SHS G67506108 16,533 987,031 SH   SOLE   814,720 0 172,311
Optinose Inc SHS 68404V100 8,061 426,482 SH   SOLE   352,029 0 74,453
OraSure Technologies Inc COM 68554V108 7,095 376,174 SH   SOLE   310,503 0 65,671
Orion Engineered Carbons SA COM L72967109 12,525 489,246 SH   SOLE   403,836 0 85,410
Oshkosh Corp COM 688239201 43,346 476,911 SH   SOLE   476,911 0 0
Papa John's International Inc COM 698813102 40,460 721,089 SH   SOLE   695,048 0 26,041
PDC Energy Inc COM 69327R101 7,868 152,659 SH   SOLE   126,009 0 26,650
Pool Corp COM 73278L105 60,143 463,891 SH   SOLE   453,427 0 10,464
PRA Health Sciences Inc COM 69354M108 77,526 851,276 SH   SOLE   851,276 0 0
Q2 Holdings Inc COM 74736L109 24,181 656,193 SH   SOLE   625,981 0 30,212
Quaker Chemical Corp COM 747316107 30,724 203,756 SH   SOLE   194,616 0 9,140
Qualys Inc COM 74758T303 59,797 1,007,540 SH   SOLE   962,020 0 45,520
Quotient Technology Inc COM 749119103 15,059 1,281,599 SH   SOLE   1,281,599 0 0
Raymond James Financial Inc COM 754730109 40,257 450,809 SH   SOLE   450,809 0 0
Red Robin Gourmet Burgers Inc COM 75689M101 7,345 130,238 SH   SOLE   107,502 0 22,736
ResMed Inc COM 761152107 28,704 338,935 SH   SOLE   338,935 0 0
REV Group Inc COM 749527107 31,923 981,353 SH   SOLE   936,039 0 45,314
Robert Half International Inc COM 770323103 37,724 679,220 SH   SOLE   679,220 0 0
RYB Education Inc COM 74979W101 845 50,050 SH   SOLE   50,050 0 0
Saia Inc COM 78709Y105 7,919 111,929 SH   SOLE   92,389 0 19,540
Sandy Spring Bancorp Inc COM 800363103 12,207 312,841 SH   SOLE   258,227 0 54,614
Sealed Air Corp COM 81211K100 23,792 482,600 SH   SOLE   482,600 0 0
Seattle Genetics Inc COM 812578102 27,960 522,621 SH   SOLE   522,621 0 0
Semtech Corp COM 816850101 28,957 846,694 SH   SOLE   807,362 0 39,332
Sientra Inc COM 82621J105 6,630 471,560 SH   SOLE   389,237 0 82,323
Silicon Motion Technology Corp SPON ADR 82706C108 44,708 844,179 SH   SOLE   777,068 0 67,111
SiteOne Landscape Supply Inc COM 82982L103 7,173 93,516 SH   SOLE   77,224 0 16,292
Snap-on Inc COM 833034101 67,833 389,172 SH   SOLE   389,172 0 0
Spectrum Brands Holdings Inc COM 84763R101 23,544 209,467 SH   SOLE   209,467 0 0
SPS Commerce Inc COM 78463M107 11,123 228,915 SH   SOLE   228,915 0 0
SVB Financial Group COM 78486Q101 60,567 259,089 SH   SOLE   259,089 0 0
Synopsys Inc COM 871607107 25,111 294,590 SH   SOLE   294,590 0 0
Tenneco Inc COM 880349105 36,660 626,230 SH   SOLE   596,771 0 29,459
Teradyne Inc COM 880770102 52,480 1,253,396 SH   SOLE   1,253,396 0 0
Texas Roadhouse Inc COM 882681109 63,085 1,197,508 SH   SOLE   1,142,954 0 54,554
Tivity Health Inc COM 88870R102 11,245 307,662 SH   SOLE   253,952 0 53,710
Toro Co/The COM 891092108 57,932 888,114 SH   SOLE   861,508 0 26,606
Tractor Supply Co COM 892356106 29,254 391,354 SH   SOLE   391,354 0 0
TransUnion COM 89400J107 61,391 1,117,020 SH   SOLE   1,117,020 0 0
TriCo Bancshares COM 896095106 11,944 315,468 SH   SOLE   260,395 0 55,073
Ulta Beauty Inc COM 90384S303 21,148 94,556 SH   SOLE   94,556 0 0
Ultimate Software Group Inc/The COM 90385D107 19,627 89,935 SH   SOLE   89,935 0 0
Ultragenyx Pharmaceutical Inc COM 90400D108 67,000 1,444,584 SH   SOLE   1,355,524 0 89,060
UMH Properties Inc COM 903002103 7,753 520,355 SH   SOLE   429,514 0 90,841
UniFirst Corp/MA COM 904708104 37,646 228,297 SH   SOLE   219,203 0 9,094
US Foods Holding Corp COM 912008109 33,719 1,056,033 SH   SOLE   1,056,033 0 0
Vail Resorts Inc COM 91879Q109 41,468 195,171 SH   SOLE   195,171 0 0
Varex Imaging Corp COM 92214X106 54,919 1,367,155 SH   SOLE   1,330,655 0 36,500
Varian Medical Systems Inc COM 92220P105 20,279 182,447 SH   SOLE   182,447 0 0
Veeva Systems Inc CL A COM 922475108 50,199 908,078 SH   SOLE   908,078 0 0
VeriSign Inc COM 92343E102 40,319 352,313 SH   SOLE   352,313 0 0
WABCO Holdings Inc COM 92927K102 65,246 454,678 SH   SOLE   454,678 0 0
WageWorks Inc COM 930427109 9,984 161,037 SH   SOLE   132,924 0 28,113
Walker & Dunlop Inc COM 93148P102 7,270 153,059 SH   SOLE   126,339 0 26,720
Watsco Inc COM 942622200 28,651 168,496 SH   SOLE   168,496 0 0
Wayfair Inc CL A 94419L101 30,376 378,419 SH   SOLE   378,419 0 0
WD-40 Co COM 929236107 31,020 262,882 SH   SOLE   245,689 0 17,193
West Pharmaceutical Services Inc COM 955306105 24,173 244,984 SH   SOLE   244,984 0 0
Wingstop Inc COM 974155103 40,779 1,046,161 SH   SOLE   1,010,824 0 35,337
WNS Holdings Ltd SPON ADR 92932M101 33,375 831,670 SH   SOLE   782,124 0 49,546
Woodward Inc COM 980745103 13,203 172,500 SH   SOLE   172,500 0 0
Zayo Group Holdings Inc COM 98919V105 20,137 547,191 SH   SOLE   547,191 0 0