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 8,891 263,054 SH   SOLE   176,139 0 86,915
ABIOMED Inc COM 003654100 35,104 311,535 SH   SOLE   301,794 0 9,741
Acuity Brands Inc COM 00508Y102 51,998 225,238 SH   SOLE   225,238 0 0
Affiliated Managers Group Inc COM 008252108 47,360 325,944 SH   SOLE   325,944 0 0
Agilent Technologies Inc COM 00846U101 26,794 588,093 SH   SOLE   588,093 0 0
Agios Pharmaceuticals Inc COM 00847X104 26,552 636,290 SH   SOLE   604,435 0 31,855
Akorn Inc COM 009728106 25,748 1,179,455 SH   SOLE   1,105,418 0 74,037
Align Technology Inc COM 016255101 134,625 1,400,451 SH   SOLE   1,400,451 0 0
Allied World Assurance Co Holdings AG COM H01531104 43,282 805,855 SH   SOLE   785,633 0 20,222
AMERCO COM 023586100 65,044 175,989 SH   SOLE   175,989 0 0
AMN Healthcare Services Inc COM 001744101 27,170 706,642 SH   SOLE   603,405 0 103,237
Anadarko Petroleum Corp COM 032511107 2,199 31,540 SH   SOLE   31,540 0 0
ANSYS Inc COM 03662Q105 87,773 948,995 SH   SOLE   908,150 0 40,845
Apptio Inc COM 03835C108 7,318 394,916 SH   SOLE   337,777 0 57,139
Ares Capital Corp COM 04010L103 23,459 1,422,639 SH   SOLE   1,422,639 0 0
Associated Banc-Corp COM 045487105 71,111 2,878,981 SH   SOLE   2,767,330 0 111,651
Astronics Corp COM 046433108 9,903 292,642 SH   SOLE   250,354 0 42,288
Astronics Corp COM 046433207 1,479 43,895 SH   SOLE   37,552 0 6,343
Axalta Coating Systems Ltd COM G0750C108 35,183 1,293,494 SH   SOLE   1,293,494 0 0
Bio-Techne Corp COM 09073M104 60,625 589,563 SH   SOLE   556,345 0 33,218
Bitauto Holdings Ltd ADS 091727107 1,126 59,444 SH   SOLE   59,444 0 0
Blackline Inc COM 09239B109 7,368 266,682 SH   SOLE   227,174 0 39,508
Boingo Wireless Inc COM 09739C102 27,342 2,242,980 SH   SOLE   2,242,980 0 0
BOK Financial Corp COM 05561Q201 47,946 577,379 SH   SOLE   577,379 0 0
Booz Allen Hamilton Holding Corp COM 099502106 36,790 1,019,948 SH   SOLE   1,019,948 0 0
Bright Horizons Family Solutions Inc COM 109194100 42,384 605,315 SH   SOLE   570,029 0 35,286
Broadridge Financial Solutions Inc COM 11133T103 32,944 496,892 SH   SOLE   496,892 0 0
Brunswick Corp/DE COM 117043109 23,828 436,888 SH   SOLE   372,892 0 63,996
Cadence Design Systems Inc COM 127387108 23,057 914,247 SH   SOLE   914,247 0 0
CAE Inc COM 124765108 36,652 2,620,984 SH   SOLE   2,457,450 0 163,534
Cambrex Corp COM 132011107 14,555 269,795 SH   SOLE   230,643 0 39,152
Camping World Holdings Inc COM 13462K109 31,260 959,205 SH   SOLE   818,109 0 141,096
Carlisle Cos Inc COM 142339100 52,969 480,269 SH   SOLE   480,269 0 0
Carrizo Oil & Gas Inc COM 144577103 32,137 860,440 SH   SOLE   828,483 0 31,957
Cavco Industries Inc COM 149568107 46,862 469,324 SH   SOLE   439,219 0 30,105
CBOE Holdings Inc COM 12503M108 47,107 637,522 SH   SOLE   637,522 0 0
CDW Corp/DE COM 12514G108 48,408 929,309 SH   SOLE   929,309 0 0
Celanese Corp COM SER A 150870103 40,066 508,843 SH   SOLE   508,843 0 0
Celldex Therapeutics Inc COM 15117B103 21,933 6,195,855 SH   SOLE   6,195,855 0 0
Centene Corp COM 15135B101 43,329 766,756 SH   SOLE   766,756 0 0
Cimarex Energy Co COM 171798101 30,384 223,574 SH   SOLE   223,574 0 0
Cintas Corp COM 172908105 51,051 441,769 SH   SOLE   441,769 0 0
Clovis Oncology Inc COM 189464100 8,438 189,958 SH   SOLE   162,144 0 27,814
CNO Financial Group Inc COM 12621E103 39,497 2,062,514 SH   SOLE   2,062,514 0 0
Colliers International Group Inc SUB VTG SHS 194693107 10,535 286,680 SH   SOLE   245,358 0 41,322
Computer Programs & Systems Inc COM 205306103 11,991 508,078 SH   SOLE   433,022 0 75,056
Cooper-Standard Holdings Inc COM 21676P103 29,661 286,912 SH   SOLE   286,912 0 0
Copart Inc COM 217204106 13,210 238,406 SH   SOLE   204,012 0 34,394
Core Laboratories NV COM N22717107 11,957 99,606 SH   SOLE   85,116 0 14,490
CoreLogic Inc/United States COM 21871D103 35,750 970,675 SH   SOLE   942,044 0 28,631
CoStar Group Inc COM 22160N109 24,707 131,080 SH   SOLE   111,880 0 19,200
Crown Castle International Corp COM 22822V101 8,215 94,673 SH   SOLE   94,673 0 0
DENTSPLY SIRONA Inc COM 24906P109 29,798 516,159 SH   SOLE   516,159 0 0
Diamondback Energy Inc COM 25278X109 44,425 439,587 SH   SOLE   439,587 0 0
Domino's Pizza Inc COM 25754A201 25,941 162,903 SH   SOLE   162,903 0 0
Dorman Products Inc COM 258278100 28,951 396,266 SH   SOLE   338,224 0 58,042
Dunkin' Brands Group Inc COM 265504100 30,470 581,047 SH   SOLE   581,047 0 0
Eaton Vance Corp COM NON VTG 278265103 47,435 1,132,637 SH   SOLE   1,132,637 0 0
Education Realty Trust Inc COM 28140H203 101,622 2,402,401 SH   SOLE   2,402,401 0 0
Endologix Inc COM 29266S106 36,138 6,317,747 SH   SOLE   6,096,363 0 221,384
Equity LifeStyle Properties Inc COM 29472R108 24,797 343,932 SH   SOLE   343,932 0 0
ESCO Technologies Inc COM 296315104 8,307 146,640 SH   SOLE   124,844 0 21,796
Evolent Health Inc COM 30050B101 6,809 460,048 SH   SOLE   393,654 0 66,394
Exact Sciences Corp COM 30063P105 11,545 864,133 SH   SOLE   738,612 0 125,521
ExlService Holdings Inc COM 302081104 35,883 711,401 SH   SOLE   689,474 0 21,927
Expeditors International of Washington Inc COM 302130109 24,606 464,612 SH   SOLE   464,612 0 0
FactSet Research Systems Inc COM 303075105 25,425 155,571 SH   SOLE   155,571 0 0
Federal Realty Investment Trust SH BEN INT 313747206 19,552 137,584 SH   SOLE   137,584 0 0
First Busey Corp COM 319383204 23,870 775,489 SH   SOLE   662,335 0 113,154
First Republic Bank/CA COM 33616C100 45,300 491,648 SH   SOLE   491,648 0 0
FirstService Corp SUB VTG SHS 33767E103 11,510 242,423 SH   SOLE   206,392 0 36,031
Five Below Inc COM 33829M101 47,431 1,186,962 SH   SOLE   1,150,274 0 36,688
FNF Group COM 31620R303 36,176 1,065,239 SH   SOLE   1,065,239 0 0
Frank's International NV COM N33462107 8,184 664,787 SH   SOLE   568,938 0 95,849
Gartner Inc COM 366651107 21,772 215,411 SH   SOLE   215,411 0 0
Generac Holdings Inc COM 368736104 42,646 1,046,777 SH   SOLE   1,046,777 0 0
Genomic Health Inc COM 37244C101 37,482 1,275,338 SH   SOLE   1,224,997 0 50,341
Gentex Corp COM 371901109 54,248 2,755,129 SH   SOLE   2,658,647 0 96,482
Global Payments Inc COM 37940X102 19,766 284,775 SH   SOLE   284,775 0 0
GoDaddy Inc CL A 380237107 64,698 1,851,167 SH   SOLE   1,851,167 0 0
Graco Inc COM 384109104 28,640 344,689 SH   SOLE   344,689 0 0
Great Southern Bancorp Inc COM 390905107 11,804 216,001 SH   SOLE   184,788 0 31,213
Grupo Aeroportuario del Sureste SAB de CV SPON ADR SER B 40051E202 61,408 426,769 SH   SOLE   408,406 0 18,363
Guidewire Software Inc COM 40171V100 7,499 152,024 SH   SOLE   129,801 0 22,223
Hanesbrands Inc COM 410345102 34,279 1,589,211 SH   SOLE   1,589,211 0 0
Healthcare Services Group Inc COM 421906108 7,978 203,667 SH   SOLE   173,665 0 30,002
HealthSouth Corp COM 421924309 115,919 2,810,846 SH   SOLE   2,745,309 0 65,537
HEICO Corp CL A 422806208 73,000 1,075,104 SH   SOLE   1,038,943 0 36,161
ICF International Inc COM 44925C103 9,455 171,292 SH   SOLE   146,536 0 24,756
IDEXX Laboratories Inc COM 45168D104 21,488 183,232 SH   SOLE   183,232 0 0
Interactive Brokers Group Inc COM 45841N107 42,040 1,151,473 SH   SOLE   1,151,473 0 0
International Flavors & Fragrances Inc COM 459506101 28,903 245,295 SH   SOLE   245,295 0 0
IPG Photonics Corp COM 44980X109 39,582 400,990 SH   SOLE   379,147 0 21,843
iRhythm Technologies Inc COM 450056106 16,615 553,847 SH   SOLE   471,955 0 81,892
iRobot Corp COM 462726100 72,909 1,247,379 SH   SOLE   1,198,925 0 48,454
j2 Global Inc COM 48123V102 28,004 342,350 SH   SOLE   292,204 0 50,146
JB Hunt Transport Services Inc COM 445658107 44,140 454,727 SH   SOLE   454,727 0 0
Jones Lang LaSalle Inc COM 48020Q107 74,754 739,848 SH   SOLE   739,848 0 0
Knoll Inc COM 498904200 17,055 610,638 SH   SOLE   521,264 0 89,374
Lakeland Financial Corp COM 511656100 26,905 568,092 SH   SOLE   483,797 0 84,295
Lamar Advertising Co CL A 512816109 40,313 599,537 SH   SOLE   599,537 0 0
Lazard Ltd SHS A G54050102 94,918 2,310,013 SH   SOLE   2,310,013 0 0
LCI Industries COM 26168L205 71,943 667,687 SH   SOLE   623,683 0 44,004
LegacyTexas Financial Group Inc COM 52471Y106 29,374 682,157 SH   SOLE   581,774 0 100,383
Leggett & Platt Inc COM 524660107 26,537 542,900 SH   SOLE   542,900 0 0
LeMaitre Vascular Inc COM 525558201 22,915 904,295 SH   SOLE   770,350 0 133,945
Liberty Global PLC SHS CL A G5480U104 19,854 649,038 SH   SOLE   649,038 0 0
Liberty TripAdvisor Holdings Inc COM SER A 531465102 15,926 1,058,203 SH   SOLE   1,058,203 0 0
Ligand Pharmaceuticals Inc COM 53220K504 9,002 88,597 SH   SOLE   75,718 0 12,879
LivaNova PLC SHS G5509L101 92,604 2,059,235 SH   SOLE   1,993,035 0 66,200
LKQ Corp COM 501889208 60,336 1,968,540 SH   SOLE   1,968,540 0 0
MACOM Technology Solutions Holdings Inc COM 55405Y100 18,849 407,284 SH   SOLE   407,284 0 0
Manhattan Associates Inc COM 562750109 44,845 845,650 SH   SOLE   806,224 0 39,426
ManpowerGroup Inc COM 56418H100 24,063 270,768 SH   SOLE   270,768 0 0
MarketAxess Holdings Inc COM 57060D108 27,993 190,531 SH   SOLE   183,266 0 7,265
Masimo Corp COM 574795100 56,497 838,230 SH   SOLE   803,268 0 34,962
MAXIMUS Inc COM 577933104 20,374 365,192 SH   SOLE   311,884 0 53,308
MB Financial Inc COM 55264U108 86,052 1,821,986 SH   SOLE   1,754,474 0 67,512
Medidata Solutions Inc COM 58471A105 39,495 795,140 SH   SOLE   757,770 0 37,370
MEDNAX Inc COM 58502B106 52,857 792,941 SH   SOLE   741,374 0 51,567
Mettler-Toledo International Inc COM 592688105 20,011 47,808 SH   SOLE   47,808 0 0
Middleby Corp/The COM 596278101 53,283 413,659 SH   SOLE   402,158 0 11,501
Mimecast Ltd COM G14838109 11,457 640,077 SH   SOLE   546,734 0 93,343
Monolithic Power Systems Inc COM 609839105 36,909 450,494 SH   SOLE   417,366 0 33,128
Monro Muffler Brake Inc COM 610236101 34,628 605,384 SH   SOLE   584,378 0 21,006
Nasdaq Inc COM 631103108 36,406 542,400 SH   SOLE   542,400 0 0
Natus Medical Inc COM 639050103 20,561 590,825 SH   SOLE   503,945 0 86,880
Navigant Consulting Inc COM 63935N107 34,359 1,312,404 SH   SOLE   1,312,404 0 0
NetEase Inc SPON ADR 64110W102 3,058 14,200 SH   SOLE   14,200 0 0
NIC Inc COM 62914B100 36,869 1,542,654 SH   SOLE   1,445,228 0 97,426
Nordson Corp COM 655663102 52,523 468,743 SH   SOLE   449,991 0 18,752
Nutanix Inc COM 67059N108 31,881 1,200,340 SH   SOLE   1,160,340 0 40,000
NVR Inc COM 62944T105 34,682 20,780 SH   SOLE   20,780 0 0
Oil States International Inc COM 678026105 23,644 606,264 SH   SOLE   606,264 0 0
Old Dominion Freight Line Inc COM 679580100 37,825 440,906 SH   SOLE   440,906 0 0
OM Asset Management Plc COM G67506108 22,584 1,557,519 SH   SOLE   1,329,561 0 227,958
Oshkosh Corp COM 688239201 49,420 764,893 SH   SOLE   745,138 0 19,755
Papa John's International Inc COM 698813102 74,658 872,382 SH   SOLE   825,380 0 47,002
PDC Energy Inc COM 69327R101 9,150 126,067 SH   SOLE   107,965 0 18,102
Polaris Industries Inc COM 731068102 25,769 312,768 SH   SOLE   312,768 0 0
Pool Corp COM 73278L105 14,097 135,107 SH   SOLE   115,433 0 19,674
Popeyes Louisiana Kitchen Inc COM 732872106 25,859 427,565 SH   SOLE   427,565 0 0
PRA Health Sciences Inc COM 69354M108 64,777 1,175,201 SH   SOLE   1,175,201 0 0
Q2 Holdings Inc COM 74736L109 8,496 294,482 SH   SOLE   251,366 0 43,116
Qualys Inc COM 74758T303 40,620 1,283,428 SH   SOLE   1,213,937 0 69,491
Quintiles IMS Holdings Inc COM 74876Y101 20,430 268,642 SH   SOLE   268,642 0 0
Quotient Technology Inc COM 749119103 36,190 3,366,499 SH   SOLE   3,366,499 0 0
Raymond James Financial Inc COM 754730109 77,351 1,116,666 SH   SOLE   1,116,666 0 0
Repligen Corp COM 759916109 9,092 294,991 SH   SOLE   252,308 0 42,683
ResMed Inc COM 761152107 42,573 686,101 SH   SOLE   686,101 0 0
Ritchie Bros Auctioneers Inc COM 767744105 39,406 1,158,999 SH   SOLE   1,107,614 0 51,385
Robert Half International Inc COM 770323103 50,908 1,043,631 SH   SOLE   1,043,631 0 0
Rollins Inc COM 775711104 25,519 755,446 SH   SOLE   755,446 0 0
RPC Inc COM 749660106 38,503 1,943,611 SH   SOLE   1,943,611 0 0
Sandy Spring Bancorp Inc COM 800363103 16,179 404,581 SH   SOLE   345,599 0 58,982
SBA Communications Corp COM 78388J106 30,583 296,176 SH   SOLE   296,176 0 0
Seattle Genetics Inc COM 812578102 40,144 760,744 SH   SOLE   742,815 0 17,929
SEI Investments Co COM 784117103 47,362 959,519 SH   SOLE   922,790 0 36,729
ServiceMaster Global Holdings Inc COM 81761R109 8,642 229,426 SH   SOLE   196,460 0 32,966
Snap-on Inc COM 833034101 44,876 262,019 SH   SOLE   262,019 0 0
Spectrum Brands Holdings Inc COM 84763R101 38,631 315,797 SH   SOLE   315,797 0 0
SPS Commerce Inc COM 78463M107 45,577 652,129 SH   SOLE   631,085 0 21,044
SVB Financial Group COM 78486Q101 85,384 497,402 SH   SOLE   478,160 0 19,242
Synopsys Inc COM 871607107 35,169 597,506 SH   SOLE   597,506 0 0
Tahoe Resources Inc COM 873868103 34,441 3,656,348 SH   SOLE   3,440,837 0 215,511
TASER International Inc COM 87651B104 14,798 610,467 SH   SOLE   521,733 0 88,734
Team Health Holdings Inc COM 87817A107 16,407 377,606 SH   SOLE   322,992 0 54,614
Tenneco Inc COM 880349105 54,024 864,801 SH   SOLE   864,801 0 0
Texas Roadhouse Inc COM 882681109 48,100 997,100 SH   SOLE   928,339 0 68,761
Toro Co/The COM 891092108 105,026 1,877,133 SH   SOLE   1,790,313 0 86,820
TriCo Bancshares COM 896095106 9,625 281,591 SH   SOLE   240,976 0 40,615
Tyler Technologies Inc COM 902252105 7,448 52,166 SH   SOLE   44,485 0 7,681
Ulta Salon Cosmetics & Fragrance Inc COM 90384S303 28,939 113,514 SH   SOLE   113,514 0 0
Ultimate Software Group Inc/The COM 90385D107 51,023 279,806 SH   SOLE   279,806 0 0
Ultragenyx Pharmaceutical Inc COM 90400D108 82,658 1,175,616 SH   SOLE   1,129,357 0 46,259
UMH Properties Inc COM 903002103 12,692 843,323 SH   SOLE   718,395 0 124,928
UniFirst Corp/MA COM 904708104 68,461 476,579 SH   SOLE   452,145 0 24,434
US Foods Holding Corp COM 912008109 27,800 1,011,655 SH   SOLE   1,011,655 0 0
Vail Resorts Inc COM 91879Q109 76,447 473,912 SH   SOLE   466,763 0 7,149
Vantiv Inc CL A 92210H105 69,507 1,165,834 SH   SOLE   1,165,834 0 0
Varian Medical Systems Inc COM 92220P105 29,978 333,900 SH   SOLE   333,900 0 0
VCA Inc COM 918194101 61,360 893,802 SH   SOLE   856,260 0 37,542
VeriSign Inc COM 92343E102 31,870 418,952 SH   SOLE   418,952 0 0
Vermilion Energy Inc COM 923725105 57,220 1,360,310 SH   SOLE   1,276,482 0 83,828
Vipshop Holdings Ltd SPON ADR 92763W103 918 83,376 SH   SOLE   83,376 0 0
VWR Corp COM 91843L103 59,905 2,393,320 SH   SOLE   2,348,201 0 45,119
WABCO Holdings Inc COM 92927K102 24,040 226,473 SH   SOLE   226,473 0 0
Wabtec Corp/DE COM 929740108 46,379 558,649 SH   SOLE   558,649 0 0
WageWorks Inc COM 930427109 106,678 1,471,424 SH   SOLE   1,422,080 0 49,344
Watsco Inc COM 942622200 49,509 334,248 SH   SOLE   320,237 0 14,011
WD-40 Co COM 929236107 50,548 432,405 SH   SOLE   406,026 0 26,379
West Pharmaceutical Services Inc COM 955306105 51,490 606,983 SH   SOLE   583,967 0 23,016
WNS Holdings Ltd SPON ADR 92932M101 11,621 421,831 SH   SOLE   360,707 0 61,124
Zayo Group Holdings Inc COM 98919V105 20,982 638,516 SH   SOLE   638,516 0 0
Zeltiq Aesthetics Inc COM 98933Q108 10,795 248,042 SH   SOLE   212,248 0 35,794
Zoe's Kitchen Inc COM 98979J109 9,319 388,436 SH   SOLE   332,612 0 55,824