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
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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
AZZ INC COM 002474104 7,877 195,170 SH   DFND   1,098 167,543 26,529
AMETEK INC. COM 031100100 14,766 218,106 SH   DFND   21,820 196,286 0
AMPHENOL CORP. CL A COM 032095101 20,036 247,300 SH   DFND   26,628 220,672 0
ANALOG DEVICES INC COM 032654105 3,012 35,088 SH   DFND   5,632 29,456 0
AVID BIOSERVICES INC. COM 05368M106 8,579 2,092,473 SH   DFND   11,911 1,784,268 296,294
BWX TECHNOLOGIES COM 05605H100 32,121 840,195 SH   DFND   40,489 759,006 40,700
BIO TECHNE CORP COM 09073M104 4,411 30,482 SH   DFND   3,038 27,444 0
CBOE GLOBAL MARKETS INC COM 12503M108 9,297 95,036 SH   DFND   9,496 85,540 0
CABOT CORP. COM 127055101 47,268 1,100,803 SH   DFND   26,796 949,155 124,852
CABOT MICROELECTRONICS COM 12709P103 25,583 268,304 SH   DFND   1,522 228,545 38,237
CHARLES RIVER LABORATORIES COM 159864107 8,048 71,104 SH   DFND   7,115 63,989 0
CHEMICAL FINANCIAL CORP COM 163731102 33,787 922,878 SH   DFND   27,873 798,529 96,476
CLEAN HARBORS INC. COM 184496107 54,113 1,096,521 SH   DFND   41,164 948,784 106,573
COGNEX CORP COM 192422103 23,268 601,698 SH   DFND   3,400 512,855 85,443
COHERENT INC. COM 192479103 11,704 110,720 SH   DFND   628 94,473 15,619
COPART INC. COM 217204106 75,314 1,576,271 SH   DFND   41,661 1,354,723 179,887
COVANTA HOLDING CORP COM 22282E102 18,744 1,396,740 SH   DFND   7,942 1,191,371 197,427
DOLLAR TREE INC. COM 256746108 16,686 184,742 SH   DFND   20,315 164,427 0
DORMAN PRODUCTS INC. COM 258278100 30,324 336,855 SH   DFND   1,918 287,276 47,661
EOG RESOURCES INC. COM 26875P101 1,306 14,971 SH   DFND   2,892 12,079 0
EMERGENT BIOSOLUTIONS INC COM 29089Q105 57,323 966,990 SH   DFND   11,032 833,041 122,917
ENTEGRIS INC. COM 29362U104 92,882 3,329,694 SH   DFND   111,672 2,874,606 343,416
ESTERLINE TECHNOLOGIES CORP COM 297425100 32,523 267,786 SH   DFND   1,633 244,624 21,529
FCB FINANCIAL HOLDING CL A COM 30255G103 22,101 658,145 SH   DFND   3,740 560,622 93,783
FMC CORP COM 302491303 21,138 285,801 SH   DFND   31,333 254,468 0
GENESEE & WYOMING INC-CL A COM 371559105 46,153 623,518 SH   DFND   20,318 539,468 63,732
GRACO INC. COM 384109104 53,531 1,279,127 SH   DFND   29,908 1,103,713 145,506
HALOZYME THERAPEUTICS INC. COM 40637H109 41,458 2,833,759 SH   DFND   78,396 2,448,140 307,223
HEICO CORP - CLASS A COM 422806208 73,940 1,173,657 SH   DFND   30,508 1,069,179 73,970
HELEN OF TROY LTD. COM G4388N106 51,978 396,231 SH   DFND   10,780 343,782 41,669
HENRY SCHEIN, INC. COM 806407102 15,105 192,377 SH   DFND   21,059 171,318 0
HEXCEL CORP COM 428291108 10,494 183,010 SH   DFND   18,323 164,687 0
HOSTESS BRANDS INC. COM 44109J106 18,004 1,645,708 SH   DFND   9,341 1,401,321 235,046
IDEX CORP. COM 45167R104 65,797 521,127 SH   DFND   11,337 448,057 61,733
INGREDION INC. COM 457187102 60,420 661,053 SH   DFND   21,999 569,615 69,439
KEYW HOLDING CORPORATION COM 493723100 9,765 1,459,712 SH   DFND   8,297 1,248,643 202,772
KAMAN CORP COM 483548103 23,921 426,475 SH   DFND   2,604 389,573 34,298
KAR AUCTION SERVICES INC. COM 48238T109 87,222 1,827,790 SH   DFND   59,283 1,576,074 192,433
KEYSIGHT TECHNOLOGIES COM 49338L103 10,257 165,226 SH   DFND   16,546 148,680 0
LKQ CORP COM 501889208 9,735 410,253 SH   DFND   40,888 369,365 0
LEGACYTEXAS FINANCIAL GROUP, I COM 52471Y106 29,594 922,228 SH   DFND   22,703 794,981 104,544
MARKEL CORP. COM 53814L108 12,686 919,277 SH   DFND   5,206 782,767 131,304
MASONITE INTL CORP COM 570535104 5,475 5,274 SH   DFND   527 4,747 0
MASTERCARD, INC. CL-A COM 57636Q104 3,238 17,166 SH   DFND   2,756 14,410 0
MEDTRONIC PLC COM G5960L103 3,206 35,250 SH   DFND   5,658 29,592 0
MERCURY SYSTEMS INC. COM 589378108 14,688 310,597 SH   DFND   1,895 283,720 24,982
MID-AMERICA APARTMENT COMMUNIT COM 59522J103 7,539 78,775 SH   DFND   7,884 70,891 0
MINERALS TECHNOLOGIES INC COM 603158106 16,822 327,661 SH   DFND   1,866 279,448 46,347
NATIONAL PRESTO IND INC. COM 637215104 8,111 69,372 SH   DFND   426 63,990 4,956
O'REILLY AUTOMOTIVE INC. COM 67103H107 2,325 6,752 SH   DFND   1,084 5,668 0
PDF SOLUTIONS, INC. COM 693282105 10,978 1,302,300 SH   DFND   7,455 1,111,336 183,509
POWER INTEGRATIONS INC. COM 739276103 28,272 463,622 SH   DFND   2,663 395,207 65,752
RBC BEARINGS INC. COM 75524B104 55,250 421,436 SH   DFND   2,424 363,459 55,553
RLI CORP. COM 749607107 27,541 399,210 SH   DFND   2,278 340,064 56,868
SRC ENERGY INC. COM 78470V108 12,868 2,737,976 SH   DFND   15,681 2,332,042 390,253
SENSIENT TECHNOLOGIES CORP COM 81725T100 23,547 421,614 SH   DFND   2,400 359,057 60,157
SERVICEMASTER GLOBAL HOLDINGS COM 81761R109 7,149 194,570 SH   DFND   19,469 175,101 0
SIMPSON MANUFACTURING COM 829073105 31,953 590,298 SH   DFND   3,348 502,139 84,811
STERIS CORP. COM G84720104 11,896 111,338 SH   DFND   11,141 100,197 0
SYNOPSYS INC. COM 871607107 11,762 139,620 SH   DFND   13,964 125,656 0
TD AMERITRADE HOLDING CORP. COM 87236Y108 9,367 191,313 SH   DFND   22,862 168,451 0
TAPESTRY, INC. COM 876030107 920 27,253 SH   DFND   4,374 22,879 0
TELEDYNE INC. COM 879360105 52,962 255,768 SH   DFND   1,462 219,306 35,000
THERMON GROUP HOLDINGS INC COM 88362T103 8,286 408,567 SH   DFND   2,329 348,840 57,398
UGI CORP. COM 902681105 73,042 1,369,115 SH   DFND   38,019 1,181,625 149,471
UNITED COMMUNITY BANKS, INC. O COM 90984P303 22,069 1,028,386 SH   DFND   5,831 876,328 146,227
VALMONT INDUSTRIES, INC. COM 920253101 3,199 28,833 SH   DFND   2,885 25,948 0
VISA INC-CLASS A SHARES COM 92826C839 3,257 24,684 SH   DFND   3,963 20,721 0
WASTE CONNECTIONS INC. COM 94106B101 27,119 365,241 SH   DFND   40,066 325,175 0
WATERS CORP. COM 941848103 2,481 13,151 SH   DFND   2,115 11,036 0
WESTERN ALLIANCE BANCORP COM 957638109 10,021 253,754 SH   DFND   27,879 225,875 0
WOODWARD INC. COM 980745103 61,811 832,021 SH   DFND   23,506 757,603 50,912