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
API GROUP CORP COM 00187Y100 34,821 1,666,897 SH   DFND   0 1,441,406 225,491
ADVANCED ENERGY INDUSTRIES, IN COM 007973100 39,558 350,974 SH   DFND   0 303,259 47,715
AGILYSYS INC. COM 00847J105 45,894 807,002 SH   DFND   0 697,690 109,312
ALLEGHANY CORP COM 017175100 13,547 20,308 SH   DFND   0 20,308 0
AMETEK INC. COM 031100100 47,593 356,499 SH   DFND   0 356,499 0
AMPHENOL CORP. CL A COM 032095101 43,042 629,176 SH   DFND   0 629,176 0
ANALOG DEVICES INC COM 032654105 16,075 93,371 SH   DFND   0 93,371 0
ATMOS ENERGY CORP. COM 049560105 10,498 109,225 SH   DFND   0 109,225 0
AVID BIOSERVICES INC. COM 05368M106 46,106 1,797,519 SH   DFND   0 1,554,266 243,253
BWX TECHNOLOGIES COM 05605H100 82,715 1,423,170 SH   DFND   0 1,372,053 51,117
BIO TECHNE CORP COM 09073M104 14,281 31,718 SH   DFND   0 31,718 0
BRINK'S CO, THE COM 109696104 38,843 505,509 SH   DFND   0 437,066 68,443
BRIXMOR PROPERTY GROUP, INC. COM 11120U105 50,357 2,199,943 SH   DFND   0 1,902,269 297,674
BROWN & BROWN INC. COM 115236101 20,668 388,941 SH   DFND   0 388,941 0
CACI INTERNATIONAL COM 127190304 74,935 293,723 SH   DFND   0 253,949 39,774
CMC MATERIALS INC. COM 12571T100 38,362 254,492 SH   DFND   0 220,083 34,409
CABOT CORP. COM 127055101 86,426 1,518,105 SH   DFND   0 1,361,692 156,413
CATALENT INC. COM 148806102 30,863 285,449 SH   DFND   0 285,449 0
CHARLES RIVER LABORATORIES COM 159864107 43,800 118,403 SH   DFND   0 118,403 0
CHARLES SCHWAB CORP COM 808513105 15,599 214,247 SH   DFND   0 214,247 0
CLEAN HARBORS INC. COM 184496107 143,825 1,544,180 SH   DFND   0 1,410,433 133,747
COGNEX CORP COM 192422103 33,197 394,963 SH   DFND   0 341,519 53,444
COHERENT INC. COM 192479103 38,886 147,105 SH   DFND   0 127,205 19,900
COPART INC. COM 217204106 22,164 168,127 SH   DFND   0 168,127 0
COVANTA HOLDING CORP COM 22282E102 43,353 2,461,855 SH   DFND   0 2,128,330 333,525
DOLLAR TREE INC. COM 256746108 17,738 178,269 SH   DFND   0 178,269 0
DORMAN PRODUCTS INC. COM 258278100 29,322 282,841 SH   DFND   0 244,622 38,219
EOG RESOURCES INC. COM 26875P101 5,853 70,145 SH   DFND   0 70,145 0
EMERGENT BIOSOLUTIONS INC COM 29089Q105 50,419 800,423 SH   DFND   0 707,219 93,204
ENTEGRIS INC. COM 29362U104 204,118 1,659,904 SH   DFND   0 1,525,724 134,180
FMC CORP COM 302491303 52,151 481,987 SH   DFND   0 481,987 0
FIRST AMERICAN FINANCIAL COM 31847R102 16,824 269,830 SH   DFND   0 269,830 0
GLACIER BANCORP INC. COM 37637Q105 25,683 466,279 SH   DFND   0 403,208 63,071
GRACO INC. COM 384109104 68,336 902,721 SH   DFND   0 807,346 95,375
HALOZYME THERAPEUTICS INC. COM 40637H109 144,241 3,176,404 SH   DFND   0 2,886,751 289,653
HEICO CORP - CLASS A COM 422806208 76,178 613,450 SH   DFND   0 548,383 65,067
HELEN OF TROY LTD. COM G4388N106 89,692 393,181 SH   DFND   0 351,847 41,334
HENRY SCHEIN, INC. COM 806407102 42,757 576,324 SH   DFND   0 576,324 0
HEXCEL CORP COM 428291108 12,064 193,334 SH   DFND   0 193,334 0
HOSTESS BRANDS INC. COM 44109J106 43,989 2,717,059 SH   DFND   0 2,349,259 367,800
HUNTINGTON BANCSHARES INC. COM 446150104 24,670 1,728,824 SH   DFND   0 1,728,815 0
IAA INC. COM 449253103 59,152 1,084,570 SH   DFND   0 959,004 125,566
IDEX CORP. COM 45167R104 92,937 422,344 SH   DFND   0 375,287 47,057
INGEVITY CORP COM 45688C107 41,199 506,373 SH   DFND   0 437,867 68,506
INGREDION INC. COM 457187102 85,051 939,788 SH   DFND   0 858,832 80,956
KBR, INC. COM 48242W106 63,977 1,676,973 SH   DFND   0 1,450,188 226,785
KAMAN CORP COM 483548103 27,656 548,728 SH   DFND   0 474,512 74,216
KAR AUCTION SERVICES INC. COM 48238T109 101,464 5,781,436 SH   DFND   0 5,292,477 488,959
KEYSIGHT TECHNOLOGIES COM 49338L103 18,436 119,394 SH   DFND   0 119,394 0
LKQ CORP COM 501889208 25,462 517,314 SH   DFND   0 517,314 0
LIGAND PHARMACEUTICALS COM 53220K504 16,811 128,140 SH   DFND   0 110,799 17,341
MARKEL CORP. COM 570535104 9,832 8,285 SH   DFND   0 8,285 0
MASTERCARD, INC. CL-A COM 57636Q104 14,136 38,720 SH   DFND   0 38,720 0
MEDTRONIC PLC COM G5960L103 13,235 106,621 SH   DFND   0 106,621 0
MERCURY SYSTEMS INC. COM 589378108 42,314 638,411 SH   DFND   0 552,028 86,383
MID-AMERICA APARTMENT COMMUNIT COM 59522J103 12,650 75,108 SH   DFND   0 75,108 0
MINERALS TECHNOLOGIES INC COM 603158106 27,544 350,127 SH   DFND   0 302,779 47,348
NATIONAL RETAIL PROPERTIES COM 637417106 19,231 410,225 SH   DFND   0 410,225 0
PDF SOLUTIONS, INC. COM 693282105 22,761 1,251,976 SH   DFND   0 1,082,786 169,190
PACIFIC PREMIER BANCORP INC COM 69478X105 38,808 917,674 SH   DFND   0 793,479 124,195
POWER INTEGRATIONS INC. COM 739276103 71,023 865,504 SH   DFND   0 748,371 117,133
PROSPERITY BANCSHARES, INC. COM 743606105 67,506 940,195 SH   DFND   0 843,231 96,964
R1 RCM INC. COM 749397105 36,805 1,654,896 SH   DFND   0 1,430,736 224,160
RBC BEARINGS INC. COM 75524B104 65,143 326,661 SH   DFND   0 282,478 44,183
RLI CORP. COM 749607107 34,697 331,740 SH   DFND   0 286,878 44,862
SENSIENT TECHNOLOGIES CORP COM 81725T100 37,142 429,093 SH   DFND   0 371,082 58,011
SIMPSON MANUFACTURING COM 829073105 32,485 294,139 SH   DFND   0 254,362 39,777
STERIS PLC COM G8473T100 20,602 99,865 SH   DFND   0 99,865 0
SYNOPSYS INC. COM 871607107 36,005 130,553 SH   DFND   0 130,553 0
TEXAS PACIFIC LD CORP COM 88262P102 8,677 5,424 SH   DFND   0 5,424 0
UGI CORP. COM 902681105 151,705 3,275,861 SH   DFND   0 2,992,693 283,168
UNITED COMMUNITY BANKS, INC. O COM 90984P303 58,631 1,831,633 SH   DFND   0 1,583,746 247,887
VISA INC-CLASS A SHARES COM 92826C839 13,471 57,613 SH   DFND   0 57,613 0
WASTE CONNECTIONS INC. COM 94106B101 62,807 525,890 SH   DFND   0 525,890 0
WATERS CORP. COM 941848103 12,915 37,369 SH   DFND   0 37,369 0
WESTERN ALLIANCE BANCORP COM 957638109 56,101 604,210 SH   DFND   0 604,210 0
WOODWARD INC. COM 980745103 97,119 790,356 SH   DFND   0 710,921 79,435