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 6,083 294,131 SH   DFND   0 267,700 26,431
AGILYSYS INC. COM 00847J105 37,955 791,393 SH   DFND   0 720,223 71,170
ALLEGHANY CORP COM 017175100 12,288 19,621 SH   DFND   0 19,621 0
AMETEK INC. COM 031100100 47,492 371,816 SH   DFND   0 371,816 0
AMPHENOL CORP. CL A COM 032095101 42,863 649,735 SH   DFND   0 649,735 0
ANALOG DEVICES INC COM 032654105 13,489 86,983 SH   DFND   0 86,983 0
ATMOS ENERGY CORP. COM 049560105 14,615 147,855 SH   DFND   0 147,855 0
AVID BIOSERVICES INC. COM 05368M106 39,923 2,189,968 SH   DFND   0 1,993,067 196,901
BWX TECHNOLOGIES COM 05605H100 94,863 1,438,619 SH   DFND   0 1,387,571 51,048
BIO TECHNE CORP COM 09073M104 18,349 48,043 SH   DFND   0 48,043 0
BRINK'S CO, THE COM 109696104 39,276 495,717 SH   DFND   0 451,150 44,567
BRIXMOR PROPERTY GROUP, INC. COM 11120U105 32,101 1,586,781 SH   DFND   0 1,444,056 142,725
BROWN & BROWN INC. COM 115236101 19,771 432,541 SH   DFND   0 432,541 0
CACI INTERNATIONAL COM 127190304 71,038 288,001 SH   DFND   0 262,104 25,897
CMC MATERIALS INC. COM 12571T100 44,125 249,590 SH   DFND   0 227,174 22,416
CABOT CORP. COM 127055101 68,406 1,304,460 SH   DFND   0 1,216,897 87,563
CATALENT INC. COM 148806102 33,441 317,550 SH   DFND   0 317,550 0
CHARLES RIVER LABORATORIES COM 159864107 38,180 131,732 SH   DFND   0 131,732 0
CHARLES SCHWAB CORP COM 808513105 12,246 187,875 SH   DFND   0 187,875 0
CLEAN HARBORS INC. COM 184496107 130,082 1,547,495 SH   DFND   0 1,460,404 87,091
COGNEX CORP COM 192422103 32,153 387,437 SH   DFND   0 352,617 34,820
COHERENT INC. COM 192479103 36,482 144,260 SH   DFND   0 131,295 12,965
COPART INC. COM 217204106 22,939 211,207 SH   DFND   0 211,207 0
COVANTA HOLDING CORP COM 22282E102 33,457 2,413,890 SH   DFND   0 2,196,692 217,198
DOLLAR TREE INC. COM 256746108 22,700 198,323 SH   DFND   0 198,323 0
DORMAN PRODUCTS INC. COM 258278100 28,474 277,420 SH   DFND   0 252,532 24,888
EOG RESOURCES INC. COM 26875P101 4,205 57,974 SH   DFND   0 57,974 0
EMERGENT BIOSOLUTIONS INC COM 29089Q105 71,488 769,432 SH   DFND   0 708,708 60,724
ENTEGRIS INC. COM 29362U104 193,494 1,730,715 SH   DFND   0 1,639,713 91,002
FMC CORP COM 302491303 54,303 490,937 SH   DFND   0 490,937 0
FIRST AMERICAN FINANCIAL COM 31847R102 14,679 259,116 SH   DFND   0 259,116 0
GLACIER BANCORP INC. COM 37637Q105 26,105 457,344 SH   DFND   0 416,250 41,094
GRACO INC. COM 384109104 65,278 911,446 SH   DFND   0 849,308 62,138
HALOZYME THERAPEUTICS INC. COM 40637H109 121,771 2,920,860 SH   DFND   0 2,732,241 188,619
HEICO CORP - CLASS A COM 422806208 70,348 619,262 SH   DFND   0 576,868 42,394
HELEN OF TROY LTD. COM G4388N106 83,660 397,131 SH   DFND   0 370,219 26,912
HENRY SCHEIN, INC. COM 806407102 35,426 511,639 SH   DFND   0 511,639 0
HEXCEL CORP COM 428291108 12,044 215,075 SH   DFND   0 215,075 0
HOSTESS BRANDS INC. COM 44109J106 38,219 2,665,200 SH   DFND   0 2,425,678 239,522
IAA INC. COM 449253103 64,571 1,171,037 SH   DFND   0 1,085,552 85,485
IDEX CORP. COM 45167R104 88,765 424,066 SH   DFND   0 393,407 30,659
INGEVITY CORP COM 45688C107 31,858 421,791 SH   DFND   0 383,858 37,933
INGREDION INC. COM 457187102 84,110 935,389 SH   DFND   0 882,681 52,708
KBR, INC. COM 48242W106 63,121 1,644,217 SH   DFND   0 1,496,463 147,754
KAMAN CORP COM 483548103 27,608 538,277 SH   DFND   0 489,922 48,355
KAR AUCTION SERVICES INC. COM 48238T109 82,036 5,469,038 SH   DFND   0 5,164,849 304,189
KEYSIGHT TECHNOLOGIES COM 49338L103 19,041 132,781 SH   DFND   0 132,781 0
LKQ CORP COM 501889208 24,360 575,486 SH   DFND   0 575,486 0
LIGAND PHARMACEUTICALS COM 53220K504 12,272 80,500 SH   DFND   0 73,259 7,241
MARKEL CORP. COM 570535104 10,504 9,217 SH   DFND   0 9,217 0
MASTERCARD, INC. CL-A COM 57636Q104 11,575 32,509 SH   DFND   0 32,509 0
MEDTRONIC PLC COM G5960L103 10,324 87,392 SH   DFND   0 87,392 0
MERCURY SYSTEMS INC. COM 589378108 30,732 434,986 SH   DFND   0 395,855 39,131
MID-AMERICA APARTMENT COMMUNIT COM 59522J103 14,598 101,121 SH   DFND   0 101,121 0
MINERALS TECHNOLOGIES INC COM 603158106 25,867 343,422 SH   DFND   0 312,574 30,848
NATIONAL RETAIL PROPERTIES COM 637417106 15,202 344,951 SH   DFND   0 344,951 0
PDF SOLUTIONS, INC. COM 693282105 21,836 1,228,129 SH   DFND   0 1,117,951 110,178
PACIFIC PREMIER BANCORP INC COM 69478X105 30,642 705,376 SH   DFND   0 641,165 64,211
POWER INTEGRATIONS INC. COM 739276103 69,181 849,049 SH   DFND   0 772,703 76,346
PROSPERITY BANCSHARES, INC. COM 743606105 67,827 905,693 SH   DFND   0 845,423 60,270
R1 RCM INC. COM 749397105 40,051 1,622,812 SH   DFND   0 1,476,846 145,966
RBC BEARINGS INC. COM 75524B104 63,059 320,469 SH   DFND   0 291,682 28,787
RLI CORP. COM 749607107 36,307 325,418 SH   DFND   0 296,191 29,227
SENSIENT TECHNOLOGIES CORP COM 81725T100 32,828 420,878 SH   DFND   0 383,092 37,786
SIMPSON MANUFACTURING COM 829073105 29,932 288,555 SH   DFND   0 262,643 25,912
STERIS PLC COM G8473T100 21,161 111,092 SH   DFND   0 111,092 0
SYNOPSYS INC. COM 871607107 35,976 145,193 SH   DFND   0 145,193 0
TCF FINANCIAL CORP COM 872307103 105,959 2,280,642 SH   DFND   0 2,130,889 149,753
TELEDYNE INC. COM 879360105 77,928 188,391 SH   DFND   0 171,462 16,929
TEXAS PACIFIC LD CORP COM 88262P102 14,874 9,358 SH   DFND   0 9,358 0
UGI CORP. COM 902681105 133,852 3,263,889 SH   DFND   0 3,079,399 184,490
UNITED COMMUNITY BANKS, INC. O COM 90984P303 58,893 1,726,068 SH   DFND   0 1,570,986 155,082
VISA INC-CLASS A SHARES COM 92826C839 10,243 48,378 SH   DFND   0 48,378 0
WASTE CONNECTIONS INC. COM 94106B101 58,115 538,198 SH   DFND   0 538,198 0
WATERS CORP. COM 941848103 8,917 31,379 SH   DFND   0 31,379 0
WESTERN ALLIANCE BANCORP COM 957638109 57,355 607,315 SH   DFND   0 607,315 0
WOODWARD INC. COM 980745103 103,501 858,005 SH   DFND   0 804,485 53,520