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 316827104 17,652 569,040 SH   SOLE   442,533 0 126,507
ABIOMED Inc COM 003654100 13,057 137,717 SH   SOLE   120,000 0 17,717
Acuity Brands Inc COM 00508Y102 81,366 373,000 SH   SOLE   336,000 0 37,000
Affiliated Managers Group Inc COM 008252108 61,225 377,000 SH   SOLE   339,000 0 38,000
Agios Pharmaceuticals Inc COM 00847X104 17,335 426,960 SH   SOLE   384,128 0 42,832
Akorn Inc COM 009728106 49,336 2,096,707 SH   SOLE   1,886,311 0 210,396
Align Technology Inc COM 016255101 223,567 3,075,617 SH   SOLE   2,799,564 0 276,053
Allied World Assurance Co Holdings AG COM H01532108 39,283 1,124,308 SH   SOLE   998,391 0 125,917
AMERCO COM 023586100 59,055 165,276 SH   SOLE   148,968 0 16,308
AMETEK Inc COM 031100100 91,492 1,830,575 SH   SOLE   1,693,402 0 137,173
AMN Healthcare Services Inc COM 001744101 22,407 666,687 SH   SOLE   578,377 0 88,310
Amphenol Corp COM 032095101 80,599 1,393,971 SH   SOLE   1,283,594 0 110,377
Anadarko Petroleum Corp COM 032511107 2,152 46,200 SH   SOLE   46,200 0 0
ANSYS Inc COM 03662Q105 150,993 1,687,824 SH   SOLE   1,534,183 0 153,641
Associated Banc-Corp COM 045487105 48,790 2,719,598 SH   SOLE   2,425,415 0 294,183
Axalta Coating Systems Ltd COM G0750C108 51,648 1,768,756 SH   SOLE   1,635,602 0 133,154
Bankrate Inc COM 06647F102 38,550 4,203,948 SH   SOLE   3,803,741 0 400,207
Bio-Techne Corp COM 09073M104 80,461 851,260 SH   SOLE   778,599 0 72,661
Bitauto Holdings Ltd ADS 091727107 2,391 96,453 SH   SOLE   96,453 0 0
Boingo Wireless Inc COM 09739C102 25,019 3,240,841 SH   SOLE   2,805,943 0 434,898
BOK Financial Corp COM 05561Q201 57,899 1,060,024 SH   SOLE   955,524 0 104,500
Booz Allen Hamilton Holding Corp COM 099502106 78,546 2,594,000 SH   SOLE   2,338,000 0 256,000
Brunswick Corp/DE COM 117043109 20,472 426,669 SH   SOLE   371,470 0 55,199
Cadence Design Systems Inc COM 127387108 92,597 3,926,938 SH   SOLE   3,546,670 0 380,268
CAE Inc COM 124765108 43,339 3,746,684 SH   SOLE   3,456,267 0 290,417
CalAmp Corp COM 128126109 26,742 1,491,441 SH   SOLE   1,326,043 0 165,398
Cambrex Corp COM 132011107 12,653 287,570 SH   SOLE   251,883 0 35,687
Carrizo Oil & Gas Inc COM 144577103 36,871 1,192,452 SH   SOLE   1,058,481 0 133,971
Cato Corp/The CL A 149205106 50,143 1,300,718 SH   SOLE   1,164,939 0 135,779
Cavco Industries Inc COM 149568107 60,388 646,135 SH   SOLE   572,030 0 74,105
CBOE Holdings Inc COM 12503M108 71,406 1,093,000 SH   SOLE   983,000 0 110,000
CDW Corp/DE COM 12514G108 58,142 1,401,000 SH   SOLE   1,259,000 0 142,000
CEB Inc COM 125134106 15,065 232,735 SH   SOLE   200,873 0 31,862
Celanese Corp COM SER A 150870103 54,431 831,000 SH   SOLE   749,000 0 82,000
Celldex Therapeutics Inc COM 15117B103 11,251 2,976,400 SH   SOLE   2,692,389 0 284,011
Cepheid COM 15670R107 126,433 3,789,947 SH   SOLE   3,480,404 0 309,543
Choice Hotels International Inc COM 169905106 80,741 1,493,817 SH   SOLE   1,337,043 0 156,774
Cimarex Energy Co COM 171798101 34,527 354,963 SH   SOLE   324,521 0 30,442
CNO Financial Group Inc COM 12621E103 45,176 2,520,997 SH   SOLE   2,288,842 0 232,155
Colliers International Group Inc SUB VTG SHS 194693107 24,002 633,962 SH   SOLE   520,211 0 113,751
Core Laboratories NV COM N22717107 13,520 120,271 SH   SOLE   105,345 0 14,926
CoreLogic Inc/United States COM 21871D103 61,487 1,771,974 SH   SOLE   1,587,051 0 184,923
CoStar Group Inc COM 22160N109 19,256 102,332 SH   SOLE   89,319 0 13,013
Crown Castle International Corp COM 22822V101 73,648 851,424 SH   SOLE   792,241 0 59,183
Cvent Inc COM 23247G109 55,963 2,615,113 SH   SOLE   2,342,545 0 272,568
Demandware Inc COM 24802Y105 43,558 1,114,020 SH   SOLE   973,000 0 141,020
DENTSPLY SIRONA Inc COM 24906P109 54,877 890,432 SH   SOLE   807,358 0 83,074
Diamondback Energy Inc COM 25278X109 40,520 525,000 SH   SOLE   472,000 0 53,000
Domino's Pizza Inc COM 25754A201 55,426 420,341 SH   SOLE   377,957 0 42,384
Donaldson Co Inc COM 257651109 119,447 3,743,260 SH   SOLE   3,399,379 0 343,881
Dorman Products Inc COM 258278100 15,876 291,738 SH   SOLE   255,064 0 36,674
Drew Industries Inc COM 26168L205 99,394 1,541,942 SH   SOLE   1,364,964 0 176,978
Dunkin' Brands Group Inc COM 265504100 24,679 523,200 SH   SOLE   476,449 0 46,751
Eaton Vance Corp COM NON VTG 278265103 84,423 2,518,593 SH   SOLE   2,296,783 0 221,810
Education Realty Trust Inc COM 28140H203 131,110 3,151,673 SH   SOLE   2,898,849 0 252,824
ESCO Technologies Inc COM 296315104 21,700 556,687 SH   SOLE   483,075 0 73,612
ExlService Holdings Inc COM 302081104 59,889 1,156,155 SH   SOLE   1,029,140 0 127,015
Expeditors International of Washington Inc COM 302130109 172,193 3,527,826 SH   SOLE   3,217,337 0 310,489
Extra Space Storage Inc COM 30225T102 85,201 911,631 SH   SOLE   817,663 0 93,968
F5 Networks Inc COM 315616102 49,199 464,801 SH   SOLE   420,525 0 44,276
FactSet Research Systems Inc COM 303075105 54,486 359,570 SH   SOLE   325,355 0 34,215
Federal Realty Investment Trust SH BEN INT 313747206 59,694 382,529 SH   SOLE   336,865 0 45,664
Fiesta Restaurant Group Inc COM 31660B101 63,998 1,952,340 SH   SOLE   1,755,920 0 196,420
First Busey Corp COM 319383204 7,206 351,839 SH   SOLE   308,178 0 43,661
Five Below Inc COM 33829M101 38,347 927,593 SH   SOLE   829,456 0 98,137
FLIR Systems Inc COM 302445101 58,826 1,785,297 SH   SOLE   1,614,512 0 170,785
Fluidigm Corp COM 34385P108 16,592 2,056,004 SH   SOLE   1,843,519 0 212,485
Forward Air Corp COM 349853101 49,065 1,082,640 SH   SOLE   973,916 0 108,724
Gartner Inc COM 366651107 57,452 643,000 SH   SOLE   578,000 0 65,000
Generac Holdings Inc COM 368736104 76,023 2,041,426 SH   SOLE   1,872,255 0 169,171
Genpact Ltd SHS G3992B107 43,533 1,601,063 SH   SOLE   1,446,754 0 154,309
Gentex Corp COM 371901109 87,090 5,550,690 SH   SOLE   5,037,857 0 512,833
Gentherm Inc COM 37253A103 16,813 404,265 SH   SOLE   352,141 0 52,124
Global Eagle Entertainment Inc COM 37951D102 24,188 2,838,911 SH   SOLE   2,564,294 0 274,617
Global Payments Inc COM 37940X102 50,170 768,294 SH   SOLE   667,249 0 101,045
Gogo Inc COM 38046C109 17,654 1,603,406 SH   SOLE   1,298,767 0 304,639
Grupo Aeroportuario del Sureste SAB de CV SPON ADR SER B 40051E202 74,901 498,775 SH   SOLE   460,795 0 37,980
GTT Communications Inc COM 362393100 27,039 1,634,780 SH   SOLE   1,483,653 0 151,127
Guidewire Software Inc COM 40171V100 16,293 299,069 SH   SOLE   261,955 0 37,114
Healthcare Services Group Inc COM 421906108 11,270 306,159 SH   SOLE   268,000 0 38,159
HealthSouth Corp COM 421924309 127,364 3,384,627 SH   SOLE   3,028,069 0 356,558
Heartland Express Inc COM 422347104 62,466 3,367,462 SH   SOLE   3,066,110 0 301,352
HEICO Corp CL A 422806208 76,256 1,602,008 SH   SOLE   1,443,458 0 158,550
HRG Group Inc COM 40434J100 66,965 4,807,241 SH   SOLE   4,489,765 0 317,476
IDEXX Laboratories Inc COM 45168D104 82,158 1,049,000 SH   SOLE   946,000 0 103,000
Intercept Pharmaceuticals Inc COM 45845P108 24,029 187,043 SH   SOLE   169,128 0 17,915
International Flavors & Fragrances Inc COM 459506101 33,676 296,000 SH   SOLE   266,000 0 30,000
IPG Photonics Corp COM 44980X109 61,116 636,092 SH   SOLE   571,248 0 64,844
iRobot Corp COM 462726100 65,589 1,858,058 SH   SOLE   1,720,337 0 137,721
j2 Global Inc COM 48123V102 15,491 251,561 SH   SOLE   218,135 0 33,426
JB Hunt Transport Services Inc COM 445658107 34,627 411,052 SH   SOLE   370,120 0 40,932
Jones Lang LaSalle Inc COM 48020Q107 116,058 989,247 SH   SOLE   898,845 0 90,402
Knoll Inc COM 498904200 13,741 634,677 SH   SOLE   555,681 0 78,996
Korn/Ferry International COM 500643200 9,437 333,587 SH   SOLE   292,190 0 41,397
Lakeland Financial Corp COM 511656100 15,359 335,494 SH   SOLE   294,093 0 41,401
Lamar Advertising Co CL A 512816109 29,619 481,617 SH   SOLE   435,664 0 45,953
Lazard Ltd SHS A G54050102 45,629 1,176,000 SH   SOLE   1,058,000 0 118,000
LegacyTexas Financial Group Inc COM 52471Y106 6,968 354,629 SH   SOLE   311,873 0 42,756
LeMaitre Vascular Inc COM 525558201 880 56,670 SH   SOLE   46,525 0 10,145
Liberty Global PLC SHS CL A G548OU104 18,453 479,300 SH   SOLE   479,300 0 0
Liberty TripAdvisor Holdings Inc COM SER A 531465102 57,729 2,605,089 SH   SOLE   2,381,993 0 223,096
Ligand Pharmaceuticals Inc COM 53220K504 16,924 158,034 SH   SOLE   138,422 0 19,612
Littelfuse Inc COM 537008104 49,619 403,046 SH   SOLE   361,252 0 41,794
LKQ Corp COM 501889208 99,010 3,100,846 SH   SOLE   2,876,630 0 224,216
Lumos Networks Corp COM 550283105 21,840 1,700,944 SH   SOLE   1,489,869 0 211,075
M/A-COM Technology Solutions Holdings Inc COM 55405Y100 39,254 896,411 SH   SOLE   811,485 0 84,926
Manhattan Associates Inc COM 562750109 72,865 1,281,258 SH   SOLE   1,149,102 0 132,156
ManpowerGroup Inc COM 56418H100 58,948 724,000 SH   SOLE   650,000 0 74,000
MarketAxess Holdings Inc COM 57060D108 21,825 174,837 SH   SOLE   153,139 0 21,698
MAXIMUS Inc COM 577933104 14,048 266,863 SH   SOLE   233,745 0 33,118
MB Financial Inc COM 55264U108 49,026 1,510,832 SH   SOLE   1,346,611 0 164,221
Medidata Solutions Inc COM 58471A105 72,156 1,864,018 SH   SOLE   1,685,451 0 178,567
Medivation Inc COM 58501N101 81,844 1,780,000 SH   SOLE   1,602,000 0 178,000
MEDNAX Inc COM 58502B106 67,313 1,041,677 SH   SOLE   925,596 0 116,081
Mettler-Toledo International Inc COM 592688105 96,907 281,084 SH   SOLE   249,426 0 31,658
Middleby Corp/The COM 596278101 90,027 843,185 SH   SOLE   766,158 0 77,027
Monolithic Power Systems Inc COM 609839105 37,364 587,111 SH   SOLE   522,512 0 64,599
Moog Inc CL A 615394202 10,482 229,469 SH   SOLE   198,969 0 30,500
Navigant Consulting Inc COM 63935N107 50,137 3,171,221 SH   SOLE   2,852,908 0 318,313
NetEase Inc SPON ADR 64110W102 2,798 19,490 SH   SOLE   19,490 0 0
NetSuite Inc COM 64118Q107 46,595 680,320 SH   SOLE   609,485 0 70,835
NIC Inc COM 62914B100 13,066 724,655 SH   SOLE   631,249 0 93,406
Nordson Corp COM 655663102 66,329 872,288 SH   SOLE   810,660 0 61,628
NVR Inc COM 62944T105 89,461 51,640 SH   SOLE   46,970 0 4,670
Old Dominion Freight Line Inc COM 679580100 50,475 725,000 SH   SOLE   650,000 0 75,000
Oshkosh Corp COM 688239201 60,745 1,486,291 SH   SOLE   1,332,742 0 153,549
Papa John's International Inc COM 698813102 94,051 1,735,575 SH   SOLE   1,582,886 0 152,689
PDC Energy Inc COM 69327R101 40,281 677,553 SH   SOLE   598,561 0 78,992
PGT Inc COM 69336V101 36,442 3,703,459 SH   SOLE   3,286,547 0 416,912
Polaris Industries Inc COM 731068102 123,058 1,249,572 SH   SOLE   1,142,389 0 107,183
Pool Corp COM 73278L105 11,581 131,991 SH   SOLE   115,429 0 16,562
Popeyes Louisiana Kitchen Inc COM 732872106 31,373 602,638 SH   SOLE   545,323 0 57,315
Q2 Holdings Inc COM 74736L109 7,543 313,772 SH   SOLE   257,531 0 56,241
Quintiles Transnational Holdings Inc COM 74876Y101 89,513 1,375,000 SH   SOLE   1,241,000 0 134,000
Quotient Technology Inc COM 749119103 43,044 4,060,801 SH   SOLE   3,672,123 0 388,678
Repligen Corp COM 759916109 16,216 604,635 SH   SOLE   529,000 0 75,635
Robert Half International Inc COM 770323103 131,081 2,814,110 SH   SOLE   2,580,357 0 233,753
Rogers Corp COM 775133101 38,871 649,255 SH   SOLE   573,390 0 75,865
Rollins Inc COM 775711104 35,785 1,319,500 SH   SOLE   1,197,500 0 122,000
Rubicon Technology Inc COM 78112T107 810 1,109,518 SH   SOLE   954,894 0 154,624
Sandy Spring Bancorp Inc COM 800363103 9,202 330,657 SH   SOLE   284,492 0 46,165
Sarepta Therapeutics Inc COM 803607100 21,860 1,119,893 SH   SOLE   1,006,606 0 113,287
SBA Communications Corp COM 78388J106 21,737 217,000 SH   SOLE   190,000 0 27,000
Seattle Genetics Inc COM 812578102 61,892 1,763,796 SH   SOLE   1,592,425 0 171,371
SEI Investments Co COM 784117103 65,222 1,515,039 SH   SOLE   1,361,409 0 153,630
Select Comfort Corp COM 81616X103 36,824 1,899,113 SH   SOLE   1,762,609 0 136,504
ServiceMaster Global Holdings Inc COM 81761R109 14,060 373,131 SH   SOLE   322,514 0 50,617
Signature Bank/New York NY COM 82669G104 53,087 390,000 SH   SOLE   353,000 0 37,000
SPS Commerce Inc COM 78463M107 36,746 855,747 SH   SOLE   755,296 0 100,451
Starz COM SER A 85571Q102 28,206 1,071,259 SH   SOLE   969,838 0 101,421
Stericycle Inc COM 858912108 78,112 619,000 SH   SOLE   559,000 0 60,000
SVB Financial Group COM 78486Q101 66,938 655,930 SH   SOLE   600,932 0 54,998
Tahoe Resources Inc COM 873868103 40,696 4,058,657 SH   SOLE   3,745,319 0 313,338
Team Health Holdings Inc COM 87817A107 6,305 150,794 SH   SOLE   131,798 0 18,996
Tenneco Inc COM 880349105 54,772 1,063,320 SH   SOLE   959,522 0 103,798
Terreno Realty Corp COM 88146M101 41,151 1,754,832 SH   SOLE   1,580,873 0 173,959
Texas Roadhouse Inc COM 882681109 15,240 349,700 SH   SOLE   306,305 0 43,395
Textura Corp COM 883211104 23,989 1,287,660 SH   SOLE   1,159,943 0 127,717
Toro Co/The COM 891092108 124,886 1,450,143 SH   SOLE   1,296,768 0 153,375
Tyler Technologies Inc COM 902252105 11,521 89,584 SH   SOLE   78,000 0 11,584
Ulta Salon Cosmetics & Fragrance Inc COM 90384S303 79,046 408,000 SH   SOLE   367,000 0 41,000
Ultimate Software Group Inc/The COM 90385D107 124,980 645,890 SH   SOLE   588,890 0 57,000
Ultragenyx Pharmaceutical Inc COM 90400D108 60,850 961,145 SH   SOLE   868,025 0 93,120
Under Armour Inc CL A 904311107 30,454 359,000 SH   SOLE   325,000 0 34,000
UniFirst Corp/MA COM 904708104 21,816 199,925 SH   SOLE   174,139 0 25,786
Vail Resorts Inc COM 91879Q109 150,097 1,122,642 SH   SOLE   1,025,143 0 97,499
Vantiv Inc CL A 92210H105 95,799 1,778,000 SH   SOLE   1,600,000 0 178,000
VeriSign Inc COM 92343E102 78,598 887,711 SH   SOLE   799,651 0 88,060
Verisk Analytics Inc COM 92345Y106 43,731 547,183 SH   SOLE   493,553 0 53,630
Vermilion Energy Inc COM 923725105 57,445 1,962,424 SH   SOLE   1,818,441 0 143,983
Virtu Financial Inc CL A 928254101 14,039 634,967 SH   SOLE   556,171 0 78,796
Virtusa Corp COM 92827P102 40,606 1,083,976 SH   SOLE   962,503 0 121,473
Vonage Holdings Corp COM 92886T201 42,514 9,302,804 SH   SOLE   8,469,112 0 833,692
VWR Corp COM 91843L103 137,009 5,063,147 SH   SOLE   4,566,152 0 496,995
WABCO Holdings Inc COM 92927K102 39,379 368,301 SH   SOLE   333,086 0 35,215
West Pharmaceutical Services Inc COM 955306105 21,986 317,164 SH   SOLE   279,248 0 37,916
Williams-Sonoma Inc COM 969904101 76,984 1,406,354 SH   SOLE   1,268,365 0 137,989
WNS Holdings Ltd SPON ADR 92932M101 77,380 2,525,445 SH   SOLE   2,272,700 0 252,745
Zayo Group Holdings Inc COM 98919V105 17,325 714,735 SH   SOLE   643,521 0 71,214
Zeltiq Aesthetics Inc COM 98933Q108 19,725 726,246 SH   SOLE   629,325 0 96,921
Zoe's Kitchen Inc COM 98979J109 11,473 294,262 SH   SOLE   256,972 0 37,290