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 FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
2U, Inc. com 90214J101   1,810,455 264,300 SH   SOLE   264,300 0 0
A10 Networks, Inc. com 002121101   3,310,213 213,700 SH   SOLE   213,700 0 0
ABM Industries, Inc. com 000957100   2,602,026 57,900 SH   SOLE   57,900 0 0
ACM Research, Inc. Class A com 00108J109   2,522,520 215,600 SH   SOLE   215,600 0 0
ADMA Biologics, Inc. com 000899104   3,871,045 1,169,500 SH   SOLE   1,169,500 0 0
AMR Corp Escrow com 001ESC102   0 18,000 SH   SOLE   18,000 0 0
ATI, Inc. com 01741R102   2,876,634 72,900 SH   SOLE   72,900 0 0
Acadia Healthcare Co., Inc. com 00404A109   2,514,300 34,800 SH   SOLE   34,800 0 0
Adtran, Inc. com 00486H105   2,082,418 131,300 SH   SOLE   131,300 0 0
Aehr Test Systems com 00760J108   21,686,330 699,108 SH   SOLE   698,808 0 300
Alight, Inc. com 01626W101   2,226,573 241,756 SH   SOLE   241,756 0 0
Allegro MicroSystems, Inc. com 01749D105   5,926,765 123,500 SH   SOLE   123,500 0 0
Allied Motion Technologies com 019330109   2,187,590 56,600 SH   SOLE   56,600 0 0
Allison Transmission Holdings, com 01973R101   3,003,936 66,400 SH   SOLE   66,400 0 0
Alphatec Hldgs Inc. com 02081G201   10,585,068 678,530 SH   SOLE   608,160 0 70,370
Alta Equipment Group, Inc. com 02128L106   1,711,800 108,000 SH   SOLE   108,000 0 0
Alteryx, Inc. Com Cl A com 02156B103   3,315,634 56,350 SH   SOLE   56,200 0 150
Amazon.com com 023135106   206,580 2,000 SH   SOLE   0 0 2,000
American Power Corp com 02906T107   0 10,000 SH   SOLE   0 0 10,000
Amgen, Inc. com 031162100   334,035 1,382 SH   SOLE   0 0 1,382
Amphastar Pharmaceuticals, Inc com 03209R103   6,682,500 178,200 SH   SOLE   178,200 0 0
Amtech Systems, Inc. com 032332504   1,134,306 118,900 SH   SOLE   118,900 0 0
Amylyx Pharmaceuticals, Inc. com 03237H101   1,769,349 60,305 SH   SOLE   60,305 0 0
Apple, Inc. com 037833100   903,526 5,479 SH   SOLE   240 0 5,239
Applied Industrial com 03820c105   2,672,044 18,800 SH   SOLE   18,800 0 0
Avatar Ventures com 05350B100   0 10,000 SH   SOLE   0 0 10,000
Aviat Networks, Inc. com 05366Y201   3,256,711 94,507 SH   SOLE   94,507 0 0
Avid Technology, Inc. com 05367P100   2,078,700 65,000 SH   SOLE   65,000 0 0
Axcelis Technologies com 054540208   36,242,534 271,989 SH   SOLE   239,909 0 32,080
Axonics, Inc. com 05465P101   5,223,574 95,740 SH   SOLE   80,450 0 15,290
Bel Fuse, Inc. com 077347300   4,565,970 121,500 SH   SOLE   121,500 0 0
Belden, Inc. com 077454106   8,041,188 92,672 SH   SOLE   72,926 0 19,747
Blue Bird Corporation com 095306106   2,600,739 127,300 SH   SOLE   127,300 0 0
Boot Barn Hldgs, Inc. com 099406100   3,157,568 41,200 SH   SOLE   41,200 0 0
Brookline Bancorp, Inc. com 11373M107   1,578,150 150,300 SH   SOLE   150,300 0 0
CECO Environmental Corp. com 125141101   3,114,174 222,600 SH   SOLE   222,600 0 0
CVD Equipment Corp. com 126601103   429,590 32,300 SH   SOLE   32,300 0 0
Cabot Corp. com 127055101   4,625,297 60,351 SH   SOLE   49,537 0 10,814
Cadence Design System, Inc. com 127387108   3,718,593 17,700 SH   SOLE   17,700 0 0
Caleres Inc. com 129500104   1,245,888 57,600 SH   SOLE   57,600 0 0
Calix, Inc. com 13100M509   3,274,349 61,100 SH   SOLE   61,100 0 0
Camtek, Ltd. com M20791105   3,336,228 117,680 SH   SOLE   117,680 0 0
Catalyst Pharmaceuticals, Inc. com 14888U101   2,443,892 147,400 SH   SOLE   147,400 0 0
Ciena Corporation com 171779309   6,213,379 118,305 SH   SOLE   99,390 0 18,915
Clean Harbors, Inc. com 184496107   7,247,038 50,835 SH   SOLE   43,630 0 7,205
Clearwater Paper Corp com 18538R103   1,888,230 56,500 SH   SOLE   56,500 0 0
Comstock Res com 205768302   2,186,315 202,624 SH   SOLE   202,624 0 0
Constellium NV Cl A com F21107101   69,581,850 4,553,786 SH   SOLE   3,018,754 0 1,535,032
Controladora Vuela Comp de Avi com 21240E105   231,384 18,600 SH   SOLE   18,600 0 0
Crocs, Inc. com 227046109   13,320,454 105,350 SH   SOLE   83,150 0 22,200
Dada Nexus Limited com 23344D108   2,970,531 350,712 SH   SOLE   349,312 0 1,400
Deckers Outdoor Corp. com 243537107   12,713,274 28,280 SH   SOLE   21,980 0 6,300
Destination XL Group, Inc. com 25065K104   2,262,500 410,617 SH   SOLE   410,617 0 0
Dynavax Technologies Corp. com 268158201   1,735,389 176,900 SH   SOLE   176,900 0 0
EZCorp, Inc. com 302301106   3,194,900 371,500 SH   SOLE   371,500 0 0
Earthstone Energy Inc. com 27032D304   2,496,619 191,900 SH   SOLE   191,900 0 0
Eli Lilly & Company com 532457108   209,109 609 SH   SOLE   0 0 609
Employers Holdings, Inc. com 292218104   2,413,851 57,900 SH   SOLE   57,900 0 0
Everi Hldgs, Inc. com 30034T103   5,167,295 301,300 SH   SOLE   301,300 0 0
Evolent Health, Inc. com 30050B101   5,442,190 167,710 SH   SOLE   147,360 0 20,350
Extreme Networks, Inc. com 30226D106   3,843,120 201,000 SH   SOLE   201,000 0 0
Fabrinet com G3323L100   4,767,620 40,145 SH   SOLE   32,360 0 7,785
Federal Signal Corp. com 313855108   3,160,443 58,300 SH   SOLE   58,300 0 0
First Merchants Corporation com 320817109   1,387,195 42,100 SH   SOLE   42,100 0 0
FirstCash Holdings, Inc com 33768G107   2,040,918 21,400 SH   SOLE   21,400 0 0
Formfactor Inc. com 346375108   3,232,775 101,500 SH   SOLE   101,500 0 0
Franklin Covey Co. com 353469109   2,623,654 68,200 SH   SOLE   68,200 0 0
Franklin Electric com 353514102   3,246,450 34,500 SH   SOLE   34,500 0 0
Full House Resorts, Inc. com 359678109   1,613,324 223,143 SH   SOLE   223,143 0 0
Granite Construction com 387328107   1,951,300 47,500 SH   SOLE   47,500 0 0
Grupo Aeroportuario del Centro com 400501102   268,530 3,000 SH   SOLE   3,000 0 0
Guess, Inc com 401617105   1,872,052 96,200 SH   SOLE   96,200 0 0
H&E Equipment Services, Inc. com 404030108   2,468,034 55,800 SH   SOLE   55,800 0 0
Haemonetics Corp. com 405024100   3,053,475 36,900 SH   SOLE   36,900 0 0
Halozyme Therapeutics, Inc. com 40637H109   6,264,688 164,040 SH   SOLE   138,850 0 25,190
Harmonic, Inc. com 413160102   2,224,975 152,500 SH   SOLE   152,500 0 0
Haynes Intl, Inc. com 420877201   2,549,581 50,900 SH   SOLE   50,900 0 0
Heritage Financial Corporation com 42722X106   2,052,174 95,896 SH   SOLE   95,896 0 0
Hexcel Corporation com 428291108   2,361,450 34,600 SH   SOLE   34,600 0 0
ICF International, Inc. com 44925C103   6,954,980 63,400 SH   SOLE   63,400 0 0
Impinj, Inc. com 453204109   19,823,188 146,275 SH   SOLE   126,190 0 20,085
Inmode Ltd. com M5425M103   4,122,840 129,000 SH   SOLE   118,660 0 10,340
Insperity, Inc. com 45778Q107   2,321,605 19,100 SH   SOLE   19,100 0 0
Inspire Medical Systems, Inc. com 457730109   1,392,717 5,950 SH   SOLE   5,950 0 0
Inter Parfums com 458334109   3,470,656 24,400 SH   SOLE   24,400 0 0
International Money Express, I com 46005L101   2,366,604 91,800 SH   SOLE   91,800 0 0
International Seaways, Inc. com Y41053102   2,142,352 51,400 SH   SOLE   51,400 0 0
JP Morgan Chase & Company Inc. com 46625H100   533,204 4,092 SH   SOLE   140 0 3,952
Janus International Group, Inc com 47103N106   2,090,320 212,000 SH   SOLE   212,000 0 0
Johnson & Johnson com 478160104   419,729 2,708 SH   SOLE   0 0 2,708
KE Holdings, Inc. com 482497104   753,600 40,000 SH   SOLE   40,000 0 0
KVH Industries, Inc. com 482738101   1,035,580 91,000 SH   SOLE   91,000 0 0
Kontoor Brands, Inc. com 50050N103   2,240,457 46,300 SH   SOLE   46,300 0 0
LSI Industries Inc. com 50216C108   2,517,151 180,700 SH   SOLE   180,700 0 0
Lantheus Hldgs Inc. com 516544103   14,740,262 178,540 SH   SOLE   164,020 0 14,520
LeMaitre Vascular, Inc. com 525558201   1,477,189 28,700 SH   SOLE   28,700 0 0
Liberty Energy, Inc. com 53115L104   1,407,819 109,900 SH   SOLE   109,900 0 0
M/I Homes, Inc. com 55305B101   1,526,778 24,200 SH   SOLE   24,200 0 0
MGP Ingredients, Inc. com 55303J106   3,090,204 31,950 SH   SOLE   31,800 0 150
MINISO Group Holding Limited com 66981J102   2,249,432 126,800 SH   SOLE   126,800 0 0
MP Materials Corp. com 553368101   1,482,794 52,600 SH   SOLE   52,600 0 0
MRC Global, Inc. com 55345K103   1,703,916 175,300 SH   SOLE   175,300 0 0
Macom Technology Solutions com 55405Y100   3,124,044 44,100 SH   SOLE   44,100 0 0
Magnolia Oil & Gas Corp. com 559663109   1,693,512 77,400 SH   SOLE   77,400 0 0
Mastercard, Inc. com 57636Q104   350,688 965 SH   SOLE   0 0 965
Matador Resources Company com 576485205   1,782,110 37,400 SH   SOLE   37,400 0 0
Maximus, Inc. com 577933104   3,210,960 40,800 SH   SOLE   40,800 0 0
Maxlinear, Inc. Class A com 57776J100   4,945,597 140,460 SH   SOLE   111,220 0 29,240
McDonald's Corporation com 580135101   234,745 840 SH   SOLE   0 0 840
Mercantile Bank Corp. com 587376104   1,835,833 60,034 SH   SOLE   39,400 0 20,634
Merit Medical System Inc com 589889104   3,239,010 43,800 SH   SOLE   43,800 0 0
Microsoft Corp. com 594918104   880,757 3,055 SH   SOLE   0 0 3,055
Model N, Inc. com 607525102   4,894,653 146,240 SH   SOLE   121,410 0 24,830
Modine Mfg Co Com com 607828100   2,208,190 95,800 SH   SOLE   95,800 0 0
Monarch Casino & Resort, Inc. com 609027107   2,624,910 35,400 SH   SOLE   35,400 0 0
Murphy USA, Inc. com 626755102   1,032,200 4,000 SH   SOLE   4,000 0 0
NOV, Inc. com 62955J103   1,674,692 90,475 SH   SOLE   90,475 0 0
NerdWallet, Inc. com 64082B102   3,716,546 229,700 SH   SOLE   229,700 0 0
New Relic, Inc. com 64829B100   2,205,997 29,300 SH   SOLE   29,300 0 0
Newmont Mining com 651639106   289,046 5,896 SH   SOLE   400 0 5,496
Nine Energy Service, Inc. com 65441V101   1,252,112 225,200 SH   SOLE   225,200 0 0
Novanta, Inc. com 67000B104   1,113,630 7,000 SH   SOLE   7,000 0 0
O-I Glass, Inc. com 67098H104   2,725,200 120,000 SH   SOLE   120,000 0 0
OneSpan, Inc. com 68287N100   6,322,750 361,300 SH   SOLE   361,300 0 0
Option Care Health Inc. com 68404L201   3,094,398 97,400 SH   SOLE   97,400 0 0
Oxford Inds, Inc. com 691497309   2,597,514 24,600 SH   SOLE   24,600 0 0
PDC Energy, Inc. com 69327R101   2,564,634 39,960 SH   SOLE   26,460 0 13,500
Patterson-Uti Energy, Inc. com 703481101   1,917,560 163,894 SH   SOLE   163,894 0 0
Pdf Solutions, Inc. com 693282105   1,823,200 43,000 SH   SOLE   43,000 0 0
Perion Network, Ltd. com M78673114   15,324,189 387,170 SH   SOLE   358,740 0 28,430
Photronics, Inc. com 719405102   2,806,994 169,300 SH   SOLE   169,300 0 0
Pinduoduo Inc. com 722304102   1,897,500 25,000 SH   SOLE   25,000 0 0
Playa Hotels & Resorts N.V. com N70544106   3,678,720 383,200 SH   SOLE   383,200 0 0
Preferred Bank com 740367404   2,822,715 51,500 SH   SOLE   51,500 0 0
Quaker Chemical Corporation com 747316107   2,850,480 14,400 SH   SOLE   14,400 0 0
RF Industries Ltd. com 749552105   277,640 63,100 SH   SOLE   63,100 0 0
RPC, Inc. com 749660106   4,727,700 614,785 SH   SOLE   539,701 0 75,084
Resmed Inc. com 761152107   317,536 1,450 SH   SOLE   0 0 1,450
Rocky Brands, Inc. com 774515100   832,827 36,100 SH   SOLE   36,100 0 0
SP Plus Corporation com 78469C103   2,976,372 86,800 SH   SOLE   86,800 0 0
Scansource, Inc. com 806037107   2,219,076 72,900 SH   SOLE   72,900 0 0
SeaWorld Entertainment Inc. com 81282v100   4,953,848 80,800 SH   SOLE   62,320 0 18,480
ShockWave Medical, Inc. com 82489T104   1,485,286 6,850 SH   SOLE   6,850 0 0
SiTime Corporation com 82982T106   3,100,614 21,800 SH   SOLE   21,800 0 0
Silicon Laboratories, Inc. com 826919102   3,643,623 20,810 SH   SOLE   20,810 0 0
Sterling Construction Co., Inc com 859241101   3,708,452 97,900 SH   SOLE   97,900 0 0
SunOpta, Inc. com 8676EP108   3,240,160 420,800 SH   SOLE   420,800 0 0
Synaptics, Inc. com 87157D109   4,474,899 40,260 SH   SOLE   34,040 0 6,220
Tactile Sys Technology, Inc. com 87357P100   4,261,811 259,550 SH   SOLE   259,550 0 0
Tencent Music Entertainment com 88034P109   1,283,400 155,000 SH   SOLE   155,000 0 0
Texas Roadhouse com 882681109   1,437,198 13,300 SH   SOLE   13,300 0 0
The Chefs Warehouse, Inc. com 163086101   3,527,580 103,600 SH   SOLE   103,600 0 0
The Travelers Co., Inc. com 89417E109   382,054 2,229 SH   SOLE   0 0 2,229
Titan Machinery, Inc. com 88830R101   1,830,045 60,100 SH   SOLE   60,100 0 0
Titan Oil & Gas, Inc. com 888309101   0 10,000 SH   SOLE   0 0 10,000
Topgolf Callaway Brands Corp. com 131193104   2,990,046 138,300 SH   SOLE   138,300 0 0
TransMedics Group, Inc. com 89377M109   8,201,559 108,300 SH   SOLE   108,300 0 0
Treace Medical Concepts, Inc. com 89455T109   3,886,817 154,300 SH   SOLE   154,300 0 0
UNUM Group com 91529Y106   2,017,560 51,000 SH   SOLE   51,000 0 0
Ultra Clean Holdings com 90385V107   4,400,332 132,700 SH   SOLE   132,700 0 0
Univar Solutions, Inc. com 91336L107   1,807,548 51,600 SH   SOLE   51,600 0 0
V2X, Inc. com 92242T101   3,090,216 77,800 SH   SOLE   77,800 0 0
VSE Corp. com 918284100   1,728,650 38,500 SH   SOLE   38,500 0 0
Veracyte, Inc. com 92337F107   4,731,614 212,180 SH   SOLE   186,620 0 25,560
Veritiv Corp. com 923454102   9,120,599 67,490 SH   SOLE   67,490 0 0
Viad Corp. com 92552R406   247,704 11,886 SH   SOLE   11,886 0 0
Vishay Precision Group com 92835K103   2,229,984 53,400 SH   SOLE   53,400 0 0
Visteon Corp. com 92839U206   6,179,102 39,400 SH   SOLE   39,400 0 0
Wal Mart Stores Inc. com 931142103   233,932 1,587 SH   SOLE   0 0 1,587
Washington Federal, Inc. com 938824109   1,752,984 58,200 SH   SOLE   58,200 0 0
Weatherford International PLC com G48833118   1,738,955 29,300 SH   SOLE   29,300 0 0
Xenacare Hldgs, Inc. com 98401A106   0 140,000 SH   SOLE   0 0 140,000
Zeta Global Holdings Corp. com 98956A105   2,310,039 213,300 SH   SOLE   213,300 0 0
SPDR S&P 500 ETF Trust com 78462F103   1,468,357 3,587 SH   SOLE   0 0 3,587