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
AAON INC COM 000360206 875 18,123 SH   SOLE   18,050 0 73
ADDUS HOMECARE CORP COM 006739106 3,876 57,339 SH   SOLE   49,846 0 7,493
ADVANCED ENERGY COM 007973100 4,184 86,286 SH   SOLE   78,040 0 8,246
ALLIED MOTION TECH COM 019330109 2,887 121,833 SH   SOLE   105,946 0 15,887
ALTRA IND MOTION COM 02208R106 727 41,601 SH   SOLE   41,400 0 201
AMBARELLA INC COM G037AX101 4,375 90,099 SH   SOLE   81,139 0 8,960
AMERESCO COM 02361E108 2,120 124,492 SH   SOLE   110,799 0 13,693
AMERICAS CAR MART INC COM 03062T105 1,582 28,092 SH   SOLE   24,254 0 3,838
ANI PHARMACEUTICALS INC COM 00182C103 2,157 52,964 SH   SOLE   46,902 0 6,062
APPOLLO MEDICAL HOLDINGS INC COM 03763a207 1,586 122,812 SH   SOLE   109,825 0 12,987
ARGAN INC COM 04010E109 4,162 120,402 SH   SOLE   105,927 0 14,475
ASGN INC COM 00191U102 301 8,534 SH   SOLE   8,490 0 44
ATRION CORP COM 049904105 3,897 5,996 SH   SOLE   5,248 0 748
AXCELIS TECH COM 054540208 1,547 84,533 SH   SOLE   72,080 0 12,453
BAYCOM CORP COM 07272m107 1,990 165,151 SH   SOLE   143,818 0 21,333
BIOLIFE SOLUTIONS INC COM 09062W204 1,308 137,761 SH   SOLE   124,194 0 13,567
BJS RESTAURANTS COM 09180c106 3,949 284,376 SH   SOLE   248,815 0 35,561
BMC STOCK HOLDINGS COM 05591B109 325 18,360 SH   SOLE   18,360 0 0
CABOT MICROELCT COM 12709P103 608 5,328 SH   SOLE   5,300 0 28
CACI INTL COM 127190304 498 2,362 SH   SOLE   2,350 0 12
CALLAWAY GOLF CO COM 131193104 679 66,470 SH   SOLE   66,270 0 200
CARDIOVASCULAR SYSTEMS INC COM 141619106 3,606 102,426 SH   SOLE   89,984 0 12,442
CARDLYTICS INC COM 14161W105 5,435 155,474 SH   SOLE   136,009 0 19,465
CAVCO INDUSTRIES INC COM 149568107 498 3,442 SH   SOLE   3,430 0 12
CENTURY COMMUNITIES INC COM 156504300 3,430 236,390 SH   SOLE   206,963 0 29,427
CHEESECAKE FACT COM 163072101 1,227 71,860 SH   SOLE   62,829 0 9,031
CHUYS HOLDINGS INC COM 171604101 1,359 135,028 SH   SOLE   118,959 0 16,069
CITIZENS COMM COM 174903104 1,230 190,707 SH   SOLE   163,659 0 27,048
CRYOLIFE INC COM 228903100 2,443 144,432 SH   SOLE   125,311 0 19,121
DEL TACO RESTAURANTS INC COM 245496104 2,066 602,444 SH   SOLE   531,559 0 70,885
DIGI INTL COM 253798102 588 61,688 SH   SOLE   54,249 0 7,439
DIGITAL TURBINE COM 25400W102 1,685 391,099 SH   SOLE   340,224 0 50,875
DIODES INC COM 254543101 3,653 89,909 SH   SOLE   80,430 0 9,479
DORMAN PRODUCTS INC COM 258278100 236 4,280 SH   SOLE   4,257 0 23
EMCOR GROUP INC COM 29084Q100 765 12,480 SH   SOLE   12,420 0 60
EMERGENT BIOSOL COM 29089Q105 503 8,695 SH   SOLE   8,650 0 45
ENPHASE ENERGY INC COM 29355A107 404 12,525 SH   SOLE   12,460 0 65
ENSIGN GROUP INC COM 29358p101 420 11,190 SH   SOLE   11,130 0 60
EPLUS INC COM 294268107 6,259 99,958 SH   SOLE   89,730 0 10,228
EVERTEC INC COM 30040P103 315 13,880 SH   SOLE   13,810 0 70
EXLSERVICE HOLDINGS INC COM 302081104 788 15,152 SH   SOLE   15,071 0 81
EXPONENT INC COM 30214U102 747 10,394 SH   SOLE   10,340 0 54
FIRST BANCSHARES INC COM 318916103 1,612 84,573 SH   SOLE   73,595 0 10,978
FIRST BUSEY CORP COM 319383204 6,274 366,740 SH   SOLE   326,264 0 40,476
FORMFACTOR INC COM 346375108 699 34,830 SH   SOLE   34,660 0 170
FORWARD AIR CORP COM 349853101 2,776 54,811 SH   SOLE   49,443 0 5,368
FOX FACTORY HOLDING CORP COM 35138V102 486 11,594 SH   SOLE   11,542 0 52
FRANKS INTERNATIONAL COM N33462107 1,014 391,760 SH   SOLE   344,919 0 46,841
GIBRALTAR INDUSTRIES COM 374689107 404 9,430 SH   SOLE   9,390 0 40
GRAHAM CORP COM 384556106 5,929 459,673 SH   SOLE   405,021 0 54,652
GUESS INC COM 401617105 2,404 355,100 SH   SOLE   314,996 0 40,104
HARSCO CORP COM 415864107 1,720 246,815 SH   SOLE   218,235 0 28,580
HAWKINS INC COM 420261109 2,291 64,382 SH   SOLE   56,196 0 8,186
HEALTHSTREAM INC COM 42222N103 2,875 120,077 SH   SOLE   106,270 0 13,807
HERITAGE CRYSTAL CLEAN INC COM 42726m106 4,904 302,006 SH   SOLE   267,259 0 34,747
HERITAGE FINL COM 42722X106 2,826 141,317 SH   SOLE   118,205 0 23,112
HILL INTERNATIONAL INC COM 431466101 2,211 1,525,147 SH   SOLE   1,358,605 0 166,542
HOME BANCORP INC COM 43689E107 737 30,213 SH   SOLE   25,881 0 4,332
HOME BANCSHARES INC COM 436893200 323 27,019 SH   SOLE   26,869 0 150
HORIZON BANCORP INC COM 440407104 534 54,201 SH   SOLE   54,201 0 0
HUB GROUP COM 443320106 3,175 69,848 SH   SOLE   61,337 0 8,511
HYSTER YALE MATERIALS COM 449172105 6,666 166,300 SH   SOLE   147,830 0 18,470
I THREE VERTICALS INC COM 46571Y107 1,157 60,627 SH   SOLE   53,150 0 7,477
INFO SERVICES GRP COM 45675y104 1,748 680,210 SH   SOLE   581,515 0 98,695
INSTALLED BUILDING PRODUCTS COM 45780R101 524 13,147 SH   SOLE   13,078 0 69
INSTEEL INDUST INC COM 45774W108 1,864 140,712 SH   SOLE   123,021 0 17,691
INTEGER HOLDINGS CORP COM 45826H109 496 7,898 SH   SOLE   7,860 0 38
INTGRTD ELCTR SRV COM 44951w106 1,159 65,680 SH   SOLE   58,135 0 7,545
JACK IN THE BOX COM 466367109 2,794 79,728 SH   SOLE   72,908 0 6,820
JOHNSON OUTDOORS COM 479167108 7,242 115,513 SH   SOLE   101,062 0 14,451
JOINT CORP COM 47973J102 1,789 164,931 SH   SOLE   144,216 0 20,715
KADANT INC COM 48282T104 2,172 29,098 SH   SOLE   25,402 0 3,696
KIRBY CORP COM 497266106 556 12,801 SH   SOLE   12,760 0 41
KOPPERS HLDGS COM 50060P106 4,193 339,031 SH   SOLE   297,668 0 41,363
LANDSTAR SYSTEM INC COM 515098101 665 6,942 SH   SOLE   6,905 0 37
LANTHEUS HOLDINGS INC COM 516544103 2,587 202,753 SH   SOLE   181,531 0 21,222
LEMAITRE VASCULAR INC COM 525558201 5,811 233,193 SH   SOLE   203,786 0 29,407
LUMINEX CORP COM 55027E102 4,455 161,846 SH   SOLE   138,033 0 23,813
LUNA INNOVATIONS COM 550351100 1,798 292,384 SH   SOLE   260,966 0 31,418
MI HOMES INC COM 55305b101 2,558 154,750 SH   SOLE   135,782 0 18,968
MANTECH INTL COM 564563104 450 6,198 SH   SOLE   6,170 0 28
MAX LINEAR INC COM 57776J100 389 33,360 SH   SOLE   33,190 0 170
MAXIMUS INC COM 577933104 539 9,269 SH   SOLE   9,220 0 49
MEDPACE HOLDINGS INC COM 58506Q109 592 8,070 SH   SOLE   8,030 0 40
MERIT MEDICAL SYS COM 589889104 239 7,671 SH   SOLE   7,630 0 41
MERITAGE HOMES CORP COM 59001A102 520 14,244 SH   SOLE   14,171 0 73
MESA LABORATORIES INC COM 59064R109 4,039 17,866 SH   SOLE   15,452 0 2,414
METHODE ELECTRONICS INC COM 591520200 3,273 123,846 SH   SOLE   108,020 0 15,826
MILLER INDUSTRIES COM 600551204 5,683 200,968 SH   SOLE   177,530 0 23,438
MITEK SYSTEMS INC COM 606710200 870 110,521 SH   SOLE   92,699 0 17,822
MKS INSTRUMENTS INC COM 55306N104 436 5,355 SH   SOLE   5,326 0 29
MYR GROUP COM 55405W104 4,416 168,620 SH   SOLE   147,759 0 20,861
NAT GAS SERVICES COM 63886Q109 720 161,505 SH   SOLE   140,710 0 20,795
NEOGEN CORP COM 640491106 599 8,944 SH   SOLE   8,882 0 62
NOODLES AND CO COM 65540B105 1,809 384,229 SH   SOLE   339,525 0 44,704
NORTHWEST PIPE COM 667746101 3,063 137,699 SH   SOLE   122,517 0 15,182
NVE CORPORATION COM 629445206 1,080 20,775 SH   SOLE   18,387 0 2,388
OLD SECOND BANCORP INC COM 680277100 5,965 863,298 SH   SOLE   770,716 0 92,582
ONTO INNOVATION INC COM 683344105 5,612 189,156 SH   SOLE   166,874 0 22,282
ORASURE TECHNOLOGIES INC COM 68554V108 594 55,226 SH   SOLE   54,961 0 265
ORION MARINE GRP COM 68628v308 2,259 868,867 SH   SOLE   759,898 0 108,969
ORTHOFIX INTL NV COM 68752M108 3,965 141,558 SH   SOLE   125,091 0 16,467
PAR TECHNOLOGY CORP COM 698884103 5,561 432,501 SH   SOLE   379,458 0 53,043
PERFICIENT INC COM 71375U101 3,825 141,216 SH   SOLE   124,154 0 17,062
PING IDENTITY HOLDING CORP COM 72341T103 3,836 191,654 SH   SOLE   166,501 0 25,153
PREFRMD LINE PROD COM 740444104 3,183 63,891 SH   SOLE   56,428 0 7,463
PRGX GLOBAL INC COM 69357c503 2,283 815,519 SH   SOLE   720,739 0 94,780
PRO DEX COM 74265m205 1,218 75,295 SH   SOLE   67,776 0 7,519
PROVIDENCE SVC COM 743815102 2,021 36,834 SH   SOLE   33,338 0 3,496
RANDOLPH BANCORP INC COM 752378109 2,792 291,186 SH   SOLE   257,972 0 33,214
RBC BEARINGS COM 75524B104 479 4,250 SH   SOLE   4,230 0 20
RED RIVER BANCSHARES INC COM 75686R202 636 17,106 SH   SOLE   15,350 0 1,756
RENEWABLE ENERGY GROUP INC COM 75972A301 7,698 374,985 SH   SOLE   329,138 0 45,847
REX AMERICAN RESOURCES COM 761624105 1,314 28,257 SH   SOLE   24,953 0 3,304
RF INDUSTRIES COM 749552105 1,202 302,802 SH   SOLE   268,142 0 34,660
ROGERS CORP COM 775133101 738 7,818 SH   SOLE   7,775 0 43
RPC INC COM 749660106 58 28,294 SH   SOLE   28,150 0 144
SCANSOURCE INC COM 806037107 626 29,293 SH   SOLE   29,239 0 54
SELECT BANCORP INC COM 81617L108 1,064 139,484 SH   SOLE   118,756 0 20,728
SKYWEST INC COM 830879102 2,535 96,806 SH   SOLE   86,796 0 10,010
SONOS INC COM 83570H108 4,790 564,874 SH   SOLE   501,342 0 63,532
STAAR SURGICAL COM 852312305 496 15,400 SH   SOLE   15,320 0 80
STERLING CONSTRUCTION CO COM 859241101 595 62,696 SH   SOLE   55,272 0 7,424
STEVEN MADDEN LTD COM 556269108 615 26,481 SH   SOLE   26,340 0 141
STIFEL FINL COM 860630102 466 11,300 SH   SOLE   11,300 0 0
SYNNEX CORP COM 87162W100 398 5,456 SH   SOLE   5,432 0 24
TECOGEN INC COM 87876p201 307 330,927 SH   SOLE   279,264 0 51,663
THOR INDUSTRIES INC COM 885160101 515 12,224 SH   SOLE   12,151 0 73
TIMKEN STEEL CORP COM 887399103 1,662 514,552 SH   SOLE   449,039 0 65,513
TOLL BROTHERS INC COM 889478103 310 16,130 SH   SOLE   16,020 0 110
TPI COMPOSITES INC COM 87266J104 5,179 350,422 SH   SOLE   311,240 0 39,182
TRANSCAT INC COM 893529107 5,175 195,299 SH   SOLE   172,363 0 22,936
TRI POINTE GROUP COM 87265H109 191 21,790 SH   SOLE   21,690 0 100
UFP TECH INC COM 902673102 2,641 69,360 SH   SOLE   60,664 0 8,696
ULTRA CLEAN HOLDINGS COM 90385V107 4,915 356,171 SH   SOLE   311,766 0 44,405
ULTRALIFE CORP COM 903899102 2,522 485,188 SH   SOLE   435,793 0 49,395
UNIFIRST CORP MA COM 904708104 580 3,841 SH   SOLE   3,821 0 20
UNIVERSAL TECHNICAL INSTITUTE COM 913915104 2,018 339,166 SH   SOLE   300,286 0 38,880
UPLAND SOFTWARE INC COM 91544A109 4,530 168,917 SH   SOLE   149,279 0 19,638
US XPRESS ENTERPRISES INC COM 90338N202 2,859 856,182 SH   SOLE   756,912 0 99,270
UTAH MEDICAL PRODUCTS COM 917488108 801 8,518 SH   SOLE   7,378 0 1,140
VERRA MOBILITY COM 92511U102 2,648 370,888 SH   SOLE   324,162 0 46,726
VICOR CORP COM 925815102 4,143 93,031 SH   SOLE   83,546 0 9,485
VIRTUSA CORP COM 92827P102 1,039 36,590 SH   SOLE   36,465 0 125
VISHAY PRECISION COM 92835k103 2,543 126,678 SH   SOLE   108,141 0 18,537
WILLDAN GROUP INC COM 96924n100 1,872 87,632 SH   SOLE   76,779 0 10,853
WINGSTOP INC COM 974155103 1,009 12,660 SH   SOLE   12,610 0 50
ZIX CORP COM 98974P100 1,401 325,059 SH   SOLE   283,653 0 41,406