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
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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
ABM Industries Inc. COM 000957100 29,334 1,196,825 SH   SOLE   856,815 0 340,010
Actuant Corp. (Cl A) COM 00508X203 111,085 3,369,290 SH   SOLE   2,451,555 0 917,735
Advance Auto Parts Inc. COM 00751Y106 27,735 341,685 SH   SOLE   257,960 0 83,725
Advent Software Inc. COM 007974108 17,943 511,775 SH   SOLE   326,380 0 185,395
Advisory Board Co. COM 00762W107 332 6,080 SH   SOLE   5,750 0 330
Allied World Assurance Company COM H01531104 117,336 1,282,225 SH   SOLE   929,335 0 352,890
Altera Corp. COM 021441100 27,181 823,925 SH   SOLE   621,125 0 202,800
AmTrust Financial Services Inc COM 032359309 29,587 828,770 SH   SOLE   590,580 0 238,190
Ametek Inc. COM 031100100 8,732 206,425 SH   SOLE   155,550 0 50,875
Ansys Inc. COM 03662Q105 14,139 193,415 SH   SOLE   145,890 0 47,525
Approach Resources Inc. COM 03834A103 47,236 1,922,525 SH   SOLE   1,378,625 0 543,900
AptarGroup Inc. COM 038336103 74,522 1,349,800 SH   SOLE   972,665 0 377,135
Arcos Dorados Holdings Inc. (C COM G0457F107 9,299 796,190 SH   SOLE   600,540 0 195,650
Argo Group International Holdi COM G0464B107 47,792 1,127,435 SH   SOLE   807,558 0 319,877
Arthur J. Gallagher & Co. COM 363576109 33,317 762,570 SH   SOLE   575,745 0 186,825
Aspen Insurance Holdings COM G05384105 53,393 1,439,545 SH   SOLE   1,030,725 0 408,820
Avon Products Inc. COM 054303102 11,476 545,700 SH   SOLE   412,100 0 133,600
Beam Inc COM 073730103 18,950 300,270 SH   SOLE   225,545 0 74,725
Bed Bath & Beyond Inc. COM 075896100 35,055 494,075 SH   SOLE   372,450 0 121,625
Bio-Rad Laboratories Inc. (Cl COM 090572207 83,173 741,295 SH   SOLE   539,015 0 202,280
Bio-Reference Laboratories, In COM 09057G602 21,115 734,430 SH   SOLE   526,695 0 207,735
Bottomline Technologies Inc. COM 101388106 48,638 1,923,230 SH   SOLE   1,378,655 0 544,575
Brady Corp. (Cl A) COM 104674106 22,487 731,745 SH   SOLE   524,550 0 207,195
Bryn Mawr Bank Corp. COM 117665109 20,198 844,065 SH   SOLE   605,750 0 238,315
C.R. Bard Inc. COM 067383109 31,201 287,090 SH   SOLE   216,890 0 70,200
CLARCOR Inc. COM 179895107 72,470 1,388,040 SH   SOLE   1,001,630 0 386,410
CST Brands Inc. COM 12646R105 69,493 2,255,535 SH   SOLE   1,647,750 0 607,785
Cardtronics Inc. COM 14161H108 59,695 2,162,845 SH   SOLE   1,550,235 0 612,610
CareFusion Corp. COM 14170T101 39,198 1,063,725 SH   SOLE   798,375 0 265,350
Casey's General Stores Inc. COM 147528103 65,077 1,081,735 SH   SOLE   775,485 0 306,250
Cepheid COM 15670R107 57,313 1,665,105 SH   SOLE   1,213,735 0 451,370
Check Point Software Technolog COM M22465104 23,504 473,100 SH   SOLE   357,500 0 115,600
Church & Dwight Co. COM 171340102 9,203 149,135 SH   SOLE   112,735 0 36,400
Clorox Co. COM 189054109 22,853 274,870 SH   SOLE   207,045 0 67,825
Community Bank System Inc. COM 203607106 29,516 956,745 SH   SOLE   684,845 0 271,900
Concho Resources Inc. COM 20605P101 23,190 276,990 SH   SOLE   208,165 0 68,825
Cullen/Frost Bankers Inc. COM 229899109 18,299 274,065 SH   SOLE   206,665 0 67,400
Denbury Resources Inc. COM 247916208 36,659 2,116,550 SH   SOLE   1,595,700 0 520,850
Dover Corp. COM 260003108 40,500 521,500 SH   SOLE   393,225 0 128,275
Edwards Lifesciences Corp. COM 28176E108 18,568 276,305 SH   SOLE   208,180 0 68,125
Elizabeth Arden Inc. COM 28660G106 43,045 955,695 SH   SOLE   683,805 0 271,890
EnPro Industries Inc. COM 29355X107 48,210 949,770 SH   SOLE   677,770 0 272,000
Endurance Specialty Holdings L COM G30397106 72,978 1,418,420 SH   SOLE   1,023,960 0 394,460
Energizer Holdings Inc. COM 29266R108 23,403 232,845 SH   SOLE   175,245 0 57,600
Esterline Technologies Corp. COM 297425100 63,113 873,055 SH   SOLE   629,905 0 243,150
FleetMatics Group PLC COM G35569105 2,319 69,800 SH   SOLE   50,360 0 19,440
Flotek Industries Inc. COM 343389102 10,928 609,140 SH   SOLE   438,210 0 170,930
Forum Energy Technologies Inc. COM 34984V100 10,667 350,550 SH   SOLE   255,630 0 94,920
Fresh Market Inc. COM 35804H106 13,079 263,055 SH   SOLE   187,945 0 75,110
Genomic Health Inc. COM 37244C101 30,592 964,750 SH   SOLE   692,230 0 272,520
Guidewire Software Inc. COM 40171V100 49,648 1,180,690 SH   SOLE   854,090 0 326,600
Harris Teeter Supermarkets Inc COM 414585109 78,629 1,677,950 SH   SOLE   1,201,860 0 476,090
Hub Group Inc. (Cl A) COM 443320106 26,583 729,900 SH   SOLE   525,010 0 204,890
IDEX Corp. COM 45167R104 63,338 1,177,070 SH   SOLE   859,380 0 317,690
IHS Inc. (Cl A) COM 451734107 20,288 194,365 SH   SOLE   145,940 0 48,425
Illumina Inc. COM 452327109 25,250 337,385 SH   SOLE   254,810 0 82,575
Independent Bank Corp. COM 453836108 17,044 494,040 SH   SOLE   357,000 0 137,040
Integra LifeSciences Holdings COM 457985208 52,680 1,438,165 SH   SOLE   1,029,570 0 408,595
Intuit Inc. COM 461202103 41,791 684,650 SH   SOLE   516,600 0 168,050
J.M. Smucker Co. COM 832696405 472 4,575 SH   SOLE   3,825 0 750
Jack Henry & Associates Inc. COM 426281101 44,563 945,525 SH   SOLE   683,160 0 262,365
John Wiley & Sons Inc. (Cl A) COM 968223206 64,987 1,621,020 SH   SOLE   1,170,735 0 450,285
K12 Inc. COM 48273U102 18,688 711,400 SH   SOLE   507,310 0 204,090
Kaydon Corp. COM 486587108 20,154 731,555 SH   SOLE   526,640 0 204,915
Kellogg Co. COM 487836108 21,964 341,960 SH   SOLE   257,860 0 84,100
Key Energy Services Inc. COM 492914106 14,333 2,408,865 SH   SOLE   1,727,985 0 680,880
Kodiak Oil & Gas Corp. COM 50015Q100 8,534 959,990 SH   SOLE   687,890 0 272,100
Laboratory Corp. of America Ho COM 50540R409 20,626 206,050 SH   SOLE   155,075 0 50,975
Lancaster Colony Corp. COM 513847103 57,082 731,910 SH   SOLE   524,520 0 207,390
Landstar System Inc. COM 515098101 25,348 492,200 SH   SOLE   351,050 0 141,150
Life Technologies Corp. COM 53217V109 24,902 336,520 SH   SOLE   254,220 0 82,300
LogMeIn Inc. COM 54142L109 29,493 1,205,765 SH   SOLE   863,880 0 341,885
Lufkin Industries Inc. COM 549764108 93,990 1,062,390 SH   SOLE   760,095 0 302,295
Luminex Corp. COM 55027E102 34,789 1,687,945 SH   SOLE   1,208,705 0 479,240
MarketAxess Holdings Inc. COM 57060D108 16,578 354,610 SH   SOLE   252,340 0 102,270
Masimo Corp. COM 574795100 45,974 2,168,600 SH   SOLE   1,553,340 0 615,260
Mead Johnson Nutrition Co. COM 582839106 14,144 178,520 SH   SOLE   134,345 0 44,175
Measurement Specialties Inc. COM 583421102 39,159 841,585 SH   SOLE   603,745 0 237,840
Micros Systems Inc. COM 594901100 31,951 740,475 SH   SOLE   558,775 0 181,700
Mistras Group Inc. COM 60649T107 17,082 971,675 SH   SOLE   698,800 0 272,875
Molson Coors Brewing Co. (Cl B COM 60871R209 27,441 573,360 SH   SOLE   431,385 0 141,975
Morningstar Inc. COM 617700109 18,568 239,335 SH   SOLE   171,295 0 68,040
National Instruments Corp. COM 636518102 68,845 2,464,024 SH   SOLE   1,794,934 0 669,090
Navigators Group Inc. COM 638904102 33,915 594,575 SH   SOLE   425,000 0 169,575
Northern Oil and Gas Inc. COM 665531109 25,357 1,900,810 SH   SOLE   1,362,905 0 537,905
Northern Trust Corp. COM 665859104 38,771 669,625 SH   SOLE   504,925 0 164,700
NuVasive Inc. COM 670704105 47,609 1,920,510 SH   SOLE   1,375,160 0 545,350
Oil States International Inc. COM 678026105 12,791 138,070 SH   SOLE   103,745 0 34,325
Owens & Minor Inc. COM 690732102 16,700 493,640 SH   SOLE   356,610 0 137,030
Pall Corp. COM 696429307 7,460 112,305 SH   SOLE   84,095 0 28,210
Parker Hannifin Corp. COM 701094104 42,143 441,755 SH   SOLE   332,680 0 109,075
Pentair Ltd. COM H6169Q108 15,696 272,070 SH   SOLE   205,120 0 66,950
Perrigo Co. COM 714290103 11,430 94,465 SH   SOLE   71,440 0 23,025
PetSmart Inc. COM 716768106 11,868 177,165 SH   SOLE   133,665 0 43,500
Pros Holdings Inc. COM 74346Y103 22,019 735,180 SH   SOLE   517,990 0 217,190
Prosperity Bancshares Inc COM 743606105 58,227 1,124,300 SH   SOLE   819,535 0 304,765
Proto Labs Inc. COM 743713109 38,847 597,925 SH   SOLE   427,595 0 170,330
Qiagen N.V. COM N72482107 15,474 777,185 SH   SOLE   585,435 0 191,750
Qlik Technologies Inc. COM 74733T105 33,679 1,191,340 SH   SOLE   850,830 0 340,510
Quality Systems Inc. COM 747582104 41,890 2,238,935 SH   SOLE   1,626,410 0 612,525
RBC Bearings Inc. COM 75524B104 19,201 369,615 SH   SOLE   262,920 0 106,695
Raven Industries Inc. COM 754212108 57,652 1,923,025 SH   SOLE   1,378,625 0 544,400
RealPage Inc. COM 75606N109 49,656 2,707,525 SH   SOLE   1,938,100 0 769,425
Red Hat Inc. COM 756577102 26,186 547,600 SH   SOLE   412,825 0 134,775
Resolute Energy Corp. COM 76116A108 26,857 3,365,510 SH   SOLE   2,412,290 0 953,220
Ritchie Bros. Auctioneers Inc. COM 767744105 26,201 1,363,230 SH   SOLE   1,029,975 0 333,255
Rockwell Automation Inc. COM 773903109 19,221 231,185 SH   SOLE   174,685 0 56,500
STERIS Corp. COM 859152100 51,525 1,201,615 SH   SOLE   861,385 0 340,230
Sensient Technologies Corp. COM 81725T100 77,849 1,923,625 SH   SOLE   1,379,575 0 544,050
Sigma-Aldrich Corp. COM 826552101 16,282 202,460 SH   SOLE   152,785 0 49,675
Silgan Holdings Inc COM 827048109 45,611 971,275 SH   SOLE   698,365 0 272,910
Snyders-Lance Inc. COM 833551104 47,550 1,673,700 SH   SOLE   1,197,610 0 476,090
SolarWinds Inc COM 83416B109 10,666 274,820 SH   SOLE   207,345 0 67,475
Solera Holdings Inc. COM 83421A104 26,436 475,045 SH   SOLE   358,670 0 116,375
St. Jude Medical Inc. COM 790849103 37,924 831,130 SH   SOLE   626,730 0 204,400
Standex International Corp. COM 854231107 5,417 102,700 SH   SOLE   74,760 0 27,940
Strayer Education Inc. COM 863236105 14,674 300,515 SH   SOLE   212,325 0 88,190
T. Rowe Price Group Inc. COM 74144T108 17,220 235,245 SH   SOLE   177,020 0 58,225
TETRA Technologies Inc. COM 88162F105 24,761 2,413,340 SH   SOLE   1,717,230 0 696,110
TIBCO Software Inc. COM 88632Q103 26,496 1,237,840 SH   SOLE   932,865 0 304,975
Techne Corp. COM 878377100 32,938 476,805 SH   SOLE   341,330 0 135,475
Teleflex Inc. COM 879369106 50,368 649,990 SH   SOLE   463,640 0 186,350
TreeHouse Foods Inc COM 89469A104 78,381 1,195,925 SH   SOLE   855,915 0 340,010
TriMas Corp. COM 896215209 80,944 2,171,250 SH   SOLE   1,555,990 0 615,260
Tupperware Brands Corp. COM 899896104 16,057 206,685 SH   SOLE   155,760 0 50,925
UMB Financial Corp. COM 902788108 96,463 1,732,765 SH   SOLE   1,243,205 0 489,560
UTi Worldwide Inc. COM G87210103 19,814 1,203,010 SH   SOLE   850,410 0 352,600
VCA Antech Inc. COM 918194101 31,181 1,195,115 SH   SOLE   854,530 0 340,585
Verisk Analytics Inc. (Cl A) COM 92345Y106 14,669 245,710 SH   SOLE   185,185 0 60,525
Volcano Corp. COM 928645100 43,670 2,408,705 SH   SOLE   1,716,985 0 691,720
WEX Inc. COM 96208T104 62,701 817,485 SH   SOLE   590,675 0 226,810
Washington Trust Bancorp Inc. COM 940610108 24,714 866,540 SH   SOLE   621,630 0 244,910
West Pharmaceutical Services I COM 955306105 78,056 1,110,965 SH   SOLE   802,970 0 307,995
Whiting Petroleum Corp. COM 966387102 33,353 723,650 SH   SOLE   545,450 0 178,200
Willis Group Holdings PLC COM G96666105 43,121 1,057,410 SH   SOLE   797,210 0 260,200
Wolverine World Wide Inc. COM 978097103 78,261 1,433,095 SH   SOLE   1,024,375 0 408,720
Woodward Inc. COM 980745103 30,321 758,020 SH   SOLE   529,230 0 228,790
Zimmer Holdings Inc. COM 98956P102 20,239 270,070 SH   SOLE   204,370 0 65,700
NICE-Systems Ltd. ADS ADR 653656108 33,423 906,005 SH   SOLE   683,165 0 222,840