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 15,624 570,226 SH   SOLE   541,000 0 29,226
Abaxis Inc COM 002567105 37,653 855,949 SH   SOLE   790,712 0 65,237
Agios Pharmaceuticals Inc COM 00847X104 27,681 392,133 SH   SOLE   359,673 0 32,460
Airgas Inc COM 009363102 91,035 1,019,086 SH   SOLE   966,086 0 53,000
Akorn Inc COM 009728106 94,530 3,316,265 SH   SOLE   3,063,744 0 252,521
Align Technology Inc COM 016255101 69,956 1,232,490 SH   SOLE   1,168,783 0 63,707
Allegion PLC ORD SHS G0176J109 34,912 605,477 SH   SOLE   568,477 0 37,000
Allied World Assurance Co Hold SHS H01531104 43,157 1,130,663 SH   SOLE   1,031,508 0 99,155
Amber Road Inc COM 02318Y108 7,307 1,731,575 SH   SOLE   1,525,130 0 206,445
AMERCO COM 023586100 78,752 200,148 SH   SOLE   185,148 0 15,000
AMETEK Inc COM 031100100 333,698 6,378,025 SH   SOLE   5,929,810 0 448,215
Amphenol Corp COM 032095101 189,043 3,709,637 SH   SOLE   3,488,637 0 221,000
Anadarko Petroleum Corp COM 032511107 1,751 29,000 SH   SOLE   29,000 0 0
ANSYS Inc COM 03662Q105 184,353 2,091,591 SH   SOLE   1,935,472 0 156,119
Arctic Cat Inc COM 039670104 12,422 560,052 SH   SOLE   495,171 0 64,881
Associated Banc-Corp COM 045487105 189,103 10,523,271 SH   SOLE   9,696,743 0 826,528
Atmel Corp COM 049513104 41,837 5,184,247 SH   SOLE   4,867,386 0 316,861
Avis Budget Group Inc COM 053774105 125,537 2,874,014 SH   SOLE   2,663,156 0 210,858
Avnet Inc COM 053807103 50,527 1,183,854 SH   SOLE   1,106,854 0 77,000
Bankrate Inc COM 06647F102 113,923 11,007,061 SH   SOLE   10,369,238 0 637,823
Bio-Techne Corp COM 09073M104 116,849 1,263,777 SH   SOLE   1,172,740 0 91,037
Bitauto Holdings Ltd ADS 091727107 24,860 835,067 SH   SOLE   792,040 0 43,027
Blackhawk Network Holdings Inc COM 09238E104 87,383 2,061,410 SH   SOLE   1,899,939 0 161,471
Blue Nile Inc COM 09578R103 15,180 452,589 SH   SOLE   400,561 0 52,028
Boingo Wireless Inc COM 09739C102 37,803 4,565,608 SH   SOLE   3,989,194 0 576,414
BOK Financial Corp COM 05561Q201 118,666 1,833,809 SH   SOLE   1,715,309 0 118,500
Cadence Design Systems Inc COM 127387108 94,287 4,559,338 SH   SOLE   4,235,338 0 324,000
CAE Inc COM 124765108 39,293 3,708,758 SH   SOLE   3,456,267 0 252,491
CAI International Inc COM 12477X106 799 79,272 SH   SOLE   69,728 0 9,544
CalAmp Corp COM 128126109 26,677 1,657,989 SH   SOLE   1,541,989 0 116,000
Carrizo Oil & Gas Inc COM 144577103 53,445 1,750,000 SH   SOLE   1,641,027 0 108,973
Casey's General Stores Inc COM 147528103 56,322 547,241 SH   SOLE   498,393 0 48,848
Cato Corp/The CL A 149205106 36,967 1,086,309 SH   SOLE   990,068 0 96,241
Cavco Industries Inc COM 149568107 61,356 901,106 SH   SOLE   821,199 0 79,907
Celldex Therapeutics Inc COM 15117B103 32,775 3,109,615 SH   SOLE   2,841,369 0 268,246
Cepheid COM 15670R107 230,306 5,095,274 SH   SOLE   4,731,260 0 364,014
Chefs' Warehouse Inc/The COM 163086101 17,866 1,261,725 SH   SOLE   1,126,799 0 134,926
Choice Hotels International In COM 169905106 43,410 911,010 SH   SOLE   842,537 0 68,473
Cimarex Energy Co COM 171798101 93,541 912,771 SH   SOLE   884,771 0 28,000
Clayton Williams Energy Inc COM 969490101 3,680 94,820 SH   SOLE   78,448 0 16,372
CNO Financial Group Inc COM 12621E103 133,355 7,089,597 SH   SOLE   6,680,597 0 409,000
Core Laboratories NV COM N22717107 93,873 940,607 SH   SOLE   876,720 0 63,887
CoreLogic Inc/United States COM 21871D103 60,756 1,631,905 SH   SOLE   1,502,905 0 129,000
Coupons.com Inc COM 22265J102 36,230 4,025,586 SH   SOLE   3,695,015 0 330,571
Crown Castle International Cor COM 22822V101 68,553 869,191 SH   SOLE   869,191 0 0
Cvent Inc COM 23247G109 70,501 2,094,497 SH   SOLE   1,878,748 0 215,749
Demandware Inc COM 24802Y105 55,203 1,068,179 SH   SOLE   936,676 0 131,503
Domino's Pizza Inc COM 25754A201 47,182 437,233 SH   SOLE   408,367 0 28,866
Donaldson Co Inc COM 257651109 323,301 11,513,578 SH   SOLE   10,692,177 0 821,401
Dorman Products Inc COM 258278100 70,970 1,394,578 SH   SOLE   1,282,451 0 112,127
Drew Industries Inc COM 26168L205 126,343 2,313,555 SH   SOLE   2,105,775 0 207,780
Dun & Bradstreet Corp/The COM 26483E100 25,410 242,000 SH   SOLE   226,000 0 16,000
Dunkin' Brands Group Inc COM 265504100 30,723 627,000 SH   SOLE   584,000 0 43,000
Eaton Vance Corp COM 278265103 113,671 3,401,291 SH   SOLE   3,197,280 0 204,011
Education Realty Trust Inc COM 28140H203 111,720 3,390,607 SH   SOLE   3,173,743 0 216,864
Energen Corp COM 29265N108 2,658 53,300 SH   SOLE   8,300 0 45,000
Envision Healthcare Holdings I COM 29413U103 46,635 1,267,610 SH   SOLE   1,186,959 0 80,651
ESCO Technologies Inc COM 296315104 77,859 2,168,763 SH   SOLE   1,990,408 0 178,355
Eversource Energy COM 30040W108 56,686 1,119,839 SH   SOLE   1,049,839 0 70,000
ExlService Holdings Inc COM 302081104 94,569 2,560,752 SH   SOLE   2,334,451 0 226,301
Expeditors International of Wa COM 302130109 99,538 2,115,587 SH   SOLE   2,012,587 0 103,000
Extra Space Storage Inc COM 30225T102 177,622 2,301,996 SH   SOLE   2,095,882 0 206,114
F5 Networks Inc COM 315616102 73,115 631,389 SH   SOLE   598,389 0 33,000
Federal Realty Investment Trus SH BEN 313747206 88,563 649,049 SH   SOLE   607,049 0 42,000
Fiesta Restaurant Group Inc COM 31660B101 72,956 1,608,029 SH   SOLE   1,467,350 0 140,679
First Busey Corp COM 319383204 38,739 1,949,632 SH   SOLE   1,858,737 0 90,895
FLIR Systems Inc COM 302445101 43,746 1,562,913 SH   SOLE   1,459,913 0 103,000
Forward Air Corp COM 349853101 59,312 1,429,542 SH   SOLE   1,329,542 0 100,000
Fossil Group Inc COM 34988V106 75,449 1,350,190 SH   SOLE   1,265,506 0 84,684
Fresh Market Inc/The COM 35804H106 106,040 4,694,099 SH   SOLE   4,372,287 0 321,812
Gaiam Inc CL A 36268Q103 15,113 2,457,379 SH   SOLE   2,409,806 0 47,573
Generac Holdings Inc COM 368736104 116,190 3,861,402 SH   SOLE   3,597,136 0 264,266
Genpact Ltd SHS G3992B107 44,193 1,871,783 SH   SOLE   1,738,783 0 133,000
Gentex Corp COM 371901109 141,297 9,115,958 SH   SOLE   8,530,767 0 585,191
Global Eagle Entertainment Inc COM 37951D102 20,292 1,767,570 SH   SOLE   1,767,570 0 0
Global Payments Inc COM 37940X102 69,415 605,032 SH   SOLE   560,032 0 45,000
Globalstar Inc COM 378973408 65,038 41,425,332 SH   SOLE   38,594,027 0 2,831,305
Gogo Inc COM 38046C109 50,702 3,318,192 SH   SOLE   2,939,328 0 378,864
Grupo Aeroportuario del Surest ADR 40051E202 58,244 382,505 SH   SOLE   355,525 0 26,980
GTT Communications Inc COM 362393100 46,609 2,003,844 SH   SOLE   1,864,844 0 139,000
Guaranty Bancorp COM 40075T607 5,109 310,216 SH   SOLE   268,921 0 41,295
Hackett Group Inc/The COM 404609109 50,308 3,658,795 SH   SOLE   3,274,343 0 384,452
Hancock Holding Co COM 410120109 48,022 1,775,289 SH   SOLE   1,642,610 0 132,679
HealthSouth Corp COM 421924309 73,491 1,915,320 SH   SOLE   1,761,710 0 153,610
Heartland Express Inc COM 422347104 80,952 4,059,798 SH   SOLE   3,662,469 0 397,329
HEICO Corp CL A 422806208 212,326 4,675,745 SH   SOLE   4,290,998 0 384,747
Henry Schein Inc COM 806407102 50,836 383,034 SH   SOLE   355,034 0 28,000
Hertz Global Holdings Inc COM 42805T105 84,197 5,032,723 SH   SOLE   4,651,291 0 381,432
HomeAway Inc COM 43739Q100 74,937 2,823,564 SH   SOLE   2,609,285 0 214,279
Hornbeck Offshore Services Inc COM 440543106 2,626 194,090 SH   SOLE   95,345 0 98,745
HRG Group Inc COM 40434J100 26,955 2,297,916 SH   SOLE   2,115,234 0 182,682
IMAX Corp COM 45245E109 31,417 929,759 SH   SOLE   871,759 0 58,000
inContact Inc COM 45336E109 23,248 3,095,664 SH   SOLE   2,816,497 0 279,167
Infinera Corp COM 45667G103 58,882 3,010,313 SH   SOLE   2,772,027 0 238,286
Intercept Pharmaceuticals Inc COM 45845P108 34,800 209,818 SH   SOLE   193,724 0 16,094
IPG Photonics Corp COM 44980X109 128,982 1,697,797 SH   SOLE   1,554,832 0 142,965
JB Hunt Transport Services Inc COM 445658107 42,266 591,960 SH   SOLE   552,960 0 39,000
Jones Lang LaSalle Inc COM 48020Q107 44,027 306,235 SH   SOLE   281,235 0 25,000
Kennametal Inc COM 489170100 35,968 1,445,066 SH   SOLE   1,362,066 0 83,000
Knoll Inc COM 498904200 72,725 3,308,700 SH   SOLE   3,048,558 0 260,142
Knowles Corp COM 49926D109 3,797 205,997 SH   SOLE   182,552 0 23,445
Lakeland Financial Corp COM 511656100 45,236 1,001,902 SH   SOLE   806,345 0 195,557
Lamar Advertising Co CL A 512816109 35,487 680,084 SH   SOLE   636,084 0 44,000
LegacyTexas Financial Group In COM 52471Y106 27,905 915,531 SH   SOLE   808,259 0 107,272
Leucadia National Corp COM 527288104 87,609 4,324,224 SH   SOLE   4,024,260 0 299,964
Liberty Global PLC SHS CL A G548OU104 26,778 623,626 SH   SOLE   623,626 0 0
Liberty Global PLC SHS CL C G548OU120 9,445 230,253 SH   SOLE   230,253 0 0
Littelfuse Inc COM 537008104 39,460 432,917 SH   SOLE   399,602 0 33,315
LKQ Corp COM 501889208 217,858 7,681,876 SH   SOLE   7,210,476 0 471,400
Lumos Networks Corp COM 550283105 14,087 1,158,500 SH   SOLE   1,024,861 0 133,639
Mattress Firm Holding Corp COM 57722W106 21,617 517,657 SH   SOLE   479,201 0 38,456
MB Financial Inc COM 55264U108 96,820 2,966,296 SH   SOLE   2,703,135 0 263,161
McGrath RentCorp COM 580589109 35,217 1,319,468 SH   SOLE   1,214,808 0 104,660
Medidata Solutions Inc COM 58471A105 82,357 1,955,759 SH   SOLE   1,806,325 0 149,434
Mettler-Toledo International I COM 592688105 216,804 761,410 SH   SOLE   706,721 0 54,689
Middleby Corp/The COM 596278101 84,490 803,217 SH   SOLE   738,271 0 64,946
Monolithic Power Systems Inc COM 609839105 36,530 713,477 SH   SOLE   648,504 0 64,973
Moog Inc CL A 615394202 99,891 1,847,445 SH   SOLE   1,696,856 0 150,589
Navigant Consulting Inc COM 63935N107 65,444 4,113,401 SH   SOLE   3,787,271 0 326,130
NetEase Inc ADR 64110W102 2,282 19,000 SH   SOLE   19,000 0 0
NetSuite Inc COM 64118Q107 64,357 767,069 SH   SOLE   700,778 0 66,291
Nordson Corp COM 655663102 235,438 3,740,670 SH   SOLE   3,455,891 0 284,779
NVR Inc COM 62944T105 120,767 79,180 SH   SOLE   72,880 0 6,300
Oshkosh Corp COM 688239201 87,342 2,404,141 SH   SOLE   2,220,210 0 183,931
Papa John's International Inc COM 698813102 90,757 1,325,308 SH   SOLE   1,214,834 0 110,474
Patriot National Inc COM 70338T102 21,982 1,388,646 SH   SOLE   985,419 0 403,227
PDC Energy Inc COM 69327R101 50,196 946,909 SH   SOLE   877,761 0 69,148
Performance Sports Group Ltd COM 71377G100 10,542 785,516 SH   SOLE   696,116 0 89,400
PGT Inc COM 69336V101 49,728 4,049,492 SH   SOLE   3,657,948 0 391,544
Polaris Industries Inc COM 731068102 37,250 310,750 SH   SOLE   293,750 0 17,000
Pool Corp COM 73278L105 108,315 1,498,139 SH   SOLE   1,374,742 0 123,397
Popeyes Louisiana Kitchen Inc COM 732872106 26,505 470,279 SH   SOLE   456,599 0 13,680
Post Properties Inc COM 737464107 73,563 1,262,016 SH   SOLE   1,189,016 0 73,000
Quanta Services Inc COM 74762E102 98,916 4,085,739 SH   SOLE   3,811,739 0 274,000
RCM Technologies Inc COM 749360400 1,816 368,364 SH   SOLE   368,364 0 0
RetailMeNot Inc COM 76132B106 29,388 3,566,463 SH   SOLE   3,282,130 0 284,333
Robert Half International Inc COM 770323103 118,857 2,323,235 SH   SOLE   2,186,235 0 137,000
Rogers Corp COM 775133101 40,062 753,332 SH   SOLE   689,500 0 63,832
RPX Corp COM 74972G103 26,517 1,932,744 SH   SOLE   1,801,744 0 131,000
Rubicon Technology Inc COM 78112T107 2,968 2,881,960 SH   SOLE   2,824,530 0 57,430
Rush Enterprises Inc CL A 781846209 74,720 3,087,599 SH   SOLE   2,831,099 0 256,500
Rush Enterprises Inc CL B 781846308 6,786 291,123 SH   SOLE   200,932 0 90,191
Sandy Spring Bancorp Inc COM 800363103 34,851 1,331,207 SH   SOLE   1,242,005 0 89,202
Sanmina Corp COM 801056102 98,987 4,632,077 SH   SOLE   4,291,713 0 340,364
Sarepta Therapeutics Inc COM 803607100 68,513 2,133,684 SH   SOLE   1,942,953 0 190,731
SBA Communications Corp COM 78388J106 66,643 636,269 SH   SOLE   566,269 0 70,000
Seattle Genetics Inc COM 812578102 71,043 1,842,396 SH   SOLE   1,707,371 0 135,025
SEI Investments Co COM 784117103 211,473 4,384,679 SH   SOLE   4,082,607 0 302,072
Select Comfort Corp COM 81616X103 67,397 3,080,302 SH   SOLE   2,833,623 0 246,679
SilverCrest Mines Inc COM 828365106 3,017 3,412,300 SH   SOLE   3,412,300 0 0
Sirona Dental Systems Inc COM 82966C103 54,605 585,014 SH   SOLE   537,460 0 47,554
SM Energy Co COM 78454L100 30,356 947,443 SH   SOLE   887,475 0 59,968
SPS Commerce Inc COM 78463M107 92,539 1,363,072 SH   SOLE   1,219,315 0 143,757
Starz COM 85571Q102 39,020 1,045,000 SH   SOLE   966,000 0 79,000
SVB Financial Group COM 78486Q101 106,704 923,524 SH   SOLE   845,189 0 78,335
Tahoe Resources Inc COM 873868103 14,757 1,910,359 SH   SOLE   1,763,477 0 146,882
Tenneco Inc COM 880349105 32,003 714,825 SH   SOLE   659,825 0 55,000
Terreno Realty Corp COM 88146M101 45,933 2,338,751 SH   SOLE   2,178,751 0 160,000
Textura Corp COM 883211104 58,897 2,279,293 SH   SOLE   2,075,250 0 204,043
Thermon Group Holdings Inc COM 88362T103 47,315 2,302,413 SH   SOLE   2,113,880 0 188,533
Toro Co/The COM 891092108 121,806 1,726,772 SH   SOLE   1,589,223 0 137,549
Towerstream Corp COM 892000100 4,040 3,775,680 SH   SOLE   3,775,680 0 0
Trimble Navigation Ltd COM 896239100 31,696 1,930,318 SH   SOLE   1,791,318 0 139,000
TrustCo Bank Corp NY COM 898349105 24,987 4,278,526 SH   SOLE   3,739,049 0 539,477
Ultimate Software Group Inc/Th COM 90385D107 120,577 673,577 SH   SOLE   630,577 0 43,000
Ultragenyx Pharmaceutical Inc COM 90400D108 120,639 1,252,614 SH   SOLE   1,152,961 0 99,653
Urban Outfitters Inc COM 917047102 16,025 545,429 SH   SOLE   500,429 0 45,000
Vail Resorts Inc COM 91879Q109 118,349 1,130,577 SH   SOLE   1,063,619 0 66,958
VeriFone Systems Inc COM 92342Y109 29,446 1,061,866 SH   SOLE   991,966 0 69,900
Verint Systems Inc COM 92343X100 57,395 1,330,126 SH   SOLE   1,244,126 0 86,000
VeriSign Inc COM 92343E102 54,698 775,197 SH   SOLE   717,197 0 58,000
Verisk Analytics Inc COM 92345Y106 82,045 1,110,073 SH   SOLE   1,034,073 0 76,000
Vermilion Energy Inc COM 923725105 40,474 1,257,109 SH   SOLE   1,119,000 0 138,109
Virtusa Corp COM 92827P102 85,661 1,669,486 SH   SOLE   1,535,593 0 133,893
Vonage Holdings Corp COM 92886T201 116,930 19,885,985 SH   SOLE   18,306,965 0 1,579,020
VWR Corp COM 91843L103 76,348 2,971,912 SH   SOLE   2,754,790 0 217,122
WABCO Holdings Inc COM 92927K102 43,008 410,260 SH   SOLE   381,549 0 28,711
WESCO International Inc COM 95082P105 51,630 1,111,029 SH   SOLE   1,034,874 0 76,155
WEX Inc COM 96208T104 66,619 767,142 SH   SOLE   713,142 0 54,000
Williams-Sonoma Inc COM 969904101 42,950 562,539 SH   SOLE   524,839 0 37,700
WNS Holdings Ltd ADR 92932M101 91,153 3,261,277 SH   SOLE   3,039,648 0 221,629
World Acceptance Corp COM 981419104 10,837 403,760 SH   SOLE   392,309 0 11,451
Wright Medical Group Inc COM 98235T107 52,259 2,486,149 SH   SOLE   2,288,115 0 198,034
WuXi PharmaTech Cayman Inc ADR 929352102 24,975 578,000 SH   SOLE   537,000 0 41,000
Zayo Group Holdings Inc COM 98919V105 24,059 948,700 SH   SOLE   883,200 0 65,500
Zebra Technologies Corp CL A 989207105 35,478 463,458 SH   SOLE   435,458 0 28,000