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
A10 Networks, Inc. com 002121101   2,181,856 131,200 SH   SOLE   131,200 0 0
ABM Industries, Inc. com 000957100   1,976,690 44,500 SH   SOLE   44,500 0 0
ADMA Biologics, Inc. com 000899104   2,083,172 536,900 SH   SOLE   536,900 0 0
AFYA Ltd. com G01125106   265,540 17,000 SH   SOLE   17,000 0 0
AMN Healthcare Svcs com 001744101   1,562,864 15,200 SH   SOLE   15,200 0 0
AMR Corp Escrow com 001ESC102   0 18,000 SH   SOLE   18,000 0 0
ATI, Inc. com 01741R102   1,707,992 57,200 SH   SOLE   57,200 0 0
Acadia Healthcare Co., Inc. com 00404A109   4,838,770 58,780 SH   SOLE   40,080 0 18,700
Adtran, Inc. com 00486H105   2,187,156 116,400 SH   SOLE   116,400 0 0
Aehr Test Systems com 00760J108   12,212,921 607,608 SH   SOLE   607,608 0 0
Allegro MicroSystems, Inc. com 01749D105   3,458,304 115,200 SH   SOLE   115,200 0 0
Allied Motion Technologies com 019330109   1,615,184 46,400 SH   SOLE   46,400 0 0
Alphatec Hldgs Inc. com 02081G201   6,215,632 503,290 SH   SOLE   496,460 0 6,830
Alta Equipment Group, Inc. com 02128L106   1,234,584 93,600 SH   SOLE   93,600 0 0
Ameresco, Inc. com 02361E108   4,925,925 86,208 SH   SOLE   86,208 0 0
American Power Corp com 02906T107   0 10,000 SH   SOLE   0 0 10,000
Amgen, Inc. com 031162100   362,660 1,381 SH   SOLE   0 0 1,381
Amphastar Pharmaceuticals, Inc com 03209R103   3,754,680 134,000 SH   SOLE   134,000 0 0
Amtech Systems, Inc. com 032332504   865,640 113,900 SH   SOLE   113,900 0 0
Apple, Inc. com 037833100   711,835 5,479 SH   SOLE   240 0 5,239
Applied Industrial com 03820c105   2,092,098 16,600 SH   SOLE   16,600 0 0
Avatar Ventures com 05350B100   0 10,000 SH   SOLE   0 0 10,000
Aviat Networks, Inc. com 05366Y201   2,598,345 83,307 SH   SOLE   83,307 0 0
Avid Technology, Inc. com 05367P100   1,387,998 52,200 SH   SOLE   52,200 0 0
Axcelis Technologies com 054540208   22,185,009 279,549 SH   SOLE   238,089 0 41,460
Bel Fuse, Inc. com 077347300   3,779,216 114,800 SH   SOLE   114,800 0 0
Belden, Inc. com 077454106   6,598,187 91,769 SH   SOLE   72,025 0 19,744
Boot Barn Hldgs, Inc. com 099406100   1,744,308 27,900 SH   SOLE   27,900 0 0
Brookline Bancorp, Inc. com 11373M107   1,722,055 121,700 SH   SOLE   121,700 0 0
CECO Environmental Corp. com 125141101   2,126,928 182,100 SH   SOLE   182,100 0 0
Cabot Corp. com 127055101   2,990,906 44,747 SH   SOLE   35,036 0 9,712
Cadence Design System, Inc. com 127387108   4,096,320 25,500 SH   SOLE   25,500 0 0
Caleres Inc. com 129500104   837,728 37,600 SH   SOLE   37,600 0 0
Calix, Inc. com 13100M509   2,593,497 37,900 SH   SOLE   37,900 0 0
Camtek, Ltd. com M20791105   1,299,593 59,180 SH   SOLE   59,180 0 0
Catalyst Pharmaceuticals, Inc. com 14888U101   1,796,760 96,600 SH   SOLE   96,600 0 0
Cerus Corp. com 157085101   1,036,235 283,900 SH   SOLE   283,900 0 0
Ciena Corporation com 171779309   4,098,027 80,385 SH   SOLE   62,300 0 18,085
Clean Harbors, Inc. com 184496107   5,515,990 48,335 SH   SOLE   41,130 0 7,205
Clearfield, Inc. com 18482P103   8,899,996 94,540 SH   SOLE   86,780 0 7,760
Clearwater Paper Corp com 18538R103   1,580,458 41,800 SH   SOLE   41,800 0 0
Comstock Res com 205768302   1,957,788 142,800 SH   SOLE   142,800 0 0
Constellium NV Cl A com F21107101   58,432,061 4,939,312 SH   SOLE   3,348,254 0 1,591,058
Controladora Vuela Comp de Avi com 21240E105   117,040 14,000 SH   SOLE   14,000 0 0
Crocs, Inc. com 227046109   11,282,142 104,050 SH   SOLE   82,200 0 21,850
Cross Country Healthcare, Inc. com 227483104   2,064,489 77,700 SH   SOLE   77,700 0 0
Dada Nexus Limited com 23344D108   3,189,974 457,672 SH   SOLE   456,272 0 1,400
Deckers Outdoor Corp. com 243537107   10,825,219 27,120 SH   SOLE   20,700 0 6,420
Despegar Com Corp. com G27358103   59,508 11,600 SH   SOLE   11,600 0 0
Destination XL Group, Inc. com 25065K104   2,282,175 338,100 SH   SOLE   338,100 0 0
Dynavax Technologies Corp. com 268158201   1,954,568 183,700 SH   SOLE   183,700 0 0
EZCorp, Inc. com 302301106   2,135,300 262,000 SH   SOLE   262,000 0 0
Earthstone Energy Inc. com 27032D304   1,832,824 128,800 SH   SOLE   128,800 0 0
Eli Lilly & Company com 532457108   233,649 639 SH   SOLE   0 0 639
Employers Holdings, Inc. com 292218104   1,660,505 38,500 SH   SOLE   38,500 0 0
EnPro Industries, Inc. com 29355x107   2,097,717 19,300 SH   SOLE   19,300 0 0
Everi Hldgs, Inc. com 30034T103   3,225,880 224,800 SH   SOLE   224,800 0 0
Evolent Health, Inc. com 30050B101   3,912,667 139,340 SH   SOLE   118,690 0 20,650
Extreme Networks, Inc. com 30226D106   2,748,331 150,100 SH   SOLE   150,100 0 0
Fabrinet com G3323L100   3,656,193 28,515 SH   SOLE   28,430 0 85
Federal Signal Corp. com 313855108   2,653,437 57,100 SH   SOLE   57,100 0 0
First Merchants Corporation com 320817109   1,040,083 25,300 SH   SOLE   25,300 0 0
FirstCash Holdings, Inc com 33768G107   1,555,689 17,900 SH   SOLE   17,900 0 0
Forward Air Corp. com 349853101   1,027,922 9,800 SH   SOLE   9,800 0 0
Fox Factory Hldg Corp. com 35138V102   1,924,953 21,100 SH   SOLE   21,100 0 0
Franklin Covey Co. com 353469109   2,165,451 46,300 SH   SOLE   46,300 0 0
Franklin Electric com 353514102   2,121,350 26,600 SH   SOLE   26,600 0 0
Full House Resorts, Inc. com 359678109   1,667,507 221,743 SH   SOLE   221,743 0 0
Futu Holdings Ltd. com 36118L106   813,000 20,000 SH   SOLE   20,000 0 0
Guess, Inc com 401617105   1,822,375 88,080 SH   SOLE   86,800 0 1,280
H&E Equipment Services, Inc. com 404030108   2,274,540 50,100 SH   SOLE   50,100 0 0
Haemonetics Corp. com 405024100   1,549,405 19,700 SH   SOLE   19,700 0 0
Halozyme Therapeutics, Inc. com 40637H109   8,158,891 143,390 SH   SOLE   118,550 0 24,840
Harmonic, Inc. com 413160102   1,307,380 99,800 SH   SOLE   99,800 0 0
Haynes Intl, Inc. com 420877201   1,530,615 33,500 SH   SOLE   33,500 0 0
Heritage Financial Corporation com 42722X106   1,697,456 55,400 SH   SOLE   55,400 0 0
ICF International, Inc. com 44925C103   4,298,770 43,400 SH   SOLE   43,400 0 0
Impinj, Inc. com 453204109   12,082,405 110,665 SH   SOLE   95,990 0 14,675
Inmode Ltd. com M5425M103   3,354,015 93,950 SH   SOLE   83,160 0 10,790
Insperity, Inc. com 45778Q107   1,556,320 13,700 SH   SOLE   13,700 0 0
Inspire Medical Systems, Inc. com 457730109   969,738 3,850 SH   SOLE   3,850 0 0
Inter Parfums com 458334109   2,133,092 22,100 SH   SOLE   22,100 0 0
International Money Express, I com 46005L101   1,547,495 63,500 SH   SOLE   63,500 0 0
JP Morgan Chase & Company Inc. com 46625H100   548,349 4,089 SH   SOLE   140 0 3,949
Janus International Group, Inc com 47103N106   1,240,456 130,300 SH   SOLE   130,300 0 0
Johnson & Johnson com 478160104   477,883 2,705 SH   SOLE   0 0 2,705
KVH Industries, Inc. com 482738101   899,360 88,000 SH   SOLE   88,000 0 0
Lantheus Hldgs Inc. com 516544103   8,405,342 164,940 SH   SOLE   150,020 0 14,920
LeMaitre Vascular, Inc. com 525558201   994,032 21,600 SH   SOLE   21,600 0 0
Liberty Energy, Inc. com 53115L104   1,346,441 84,100 SH   SOLE   84,100 0 0
M/I Homes, Inc. com 55305B101   1,385,400 30,000 SH   SOLE   30,000 0 0
MGP Ingredients, Inc. com 55303J106   3,563,823 33,501 SH   SOLE   25,600 0 7,900
MINISO Group Holding Limited com 66981J102   965,700 90,000 SH   SOLE   90,000 0 0
MP Materials Corp. com 553368101   1,165,440 48,000 SH   SOLE   48,000 0 0
MRC Global, Inc. com 55345K103   1,388,442 119,900 SH   SOLE   119,900 0 0
Macom Technology Solutions com 55405Y100   2,418,432 38,400 SH   SOLE   38,400 0 0
Magnolia Oil & Gas Corp. com 559663109   1,573,495 67,100 SH   SOLE   67,100 0 0
Mastercard, Inc. com 57636Q104   335,502 965 SH   SOLE   0 0 965
Matador Resources Company com 576485205   1,734,372 30,300 SH   SOLE   30,300 0 0
Maxlinear, Inc. Class A com 57776J100   3,851,967 113,460 SH   SOLE   84,720 0 28,740
McDonald's Corporation com 580135101   220,935 838 SH   SOLE   0 0 838
Mercantile Bank Corp. com 587376104   1,667,956 49,819 SH   SOLE   28,400 0 21,419
Merit Medical System Inc com 589889104   2,514,072 35,600 SH   SOLE   35,600 0 0
Microsoft Corp. com 594918104   732,650 3,055 SH   SOLE   0 0 3,055
Model N, Inc. com 607525102   5,894,990 145,340 SH   SOLE   121,410 0 23,930
Modine Mfg Co Com com 607828100   1,717,890 86,500 SH   SOLE   86,500 0 0
Monarch Casino & Resort, Inc. com 609027107   1,545,489 20,100 SH   SOLE   20,100 0 0
Murphy USA, Inc. com 626755102   810,666 2,900 SH   SOLE   2,900 0 0
NOV, Inc. com 62955J103   1,687,912 80,800 SH   SOLE   80,800 0 0
NV5 Global, Inc com 62945V109   1,561,376 11,800 SH   SOLE   11,800 0 0
NerdWallet, Inc. com 64082B102   1,688,640 175,900 SH   SOLE   175,900 0 0
Newmont Mining com 651639106   277,924 5,888 SH   SOLE   400 0 5,488
Nine Energy Service, Inc. com 65441V101   1,439,923 99,100 SH   SOLE   99,100 0 0
Novanta, Inc. com 67000B104   665,763 4,900 SH   SOLE   4,900 0 0
O-I Glass, Inc. com 67098H104   1,713,338 103,400 SH   SOLE   103,400 0 0
OOMA Inc. com 683416101   830,820 61,000 SH   SOLE   61,000 0 0
OneSpan, Inc. com 68287N100   2,427,111 216,900 SH   SOLE   216,900 0 0
Option Care Health Inc. com 68404L201   1,970,895 65,500 SH   SOLE   65,500 0 0
Oxford Inds, Inc. com 691497309   1,630,650 17,500 SH   SOLE   17,500 0 0
PDC Energy, Inc. com 69327R101   2,393,542 37,705 SH   SOLE   23,960 0 13,745
Patterson-Uti Energy, Inc. com 703481101   2,342,444 139,100 SH   SOLE   139,100 0 0
Pdf Solutions, Inc. com 693282105   858,452 30,100 SH   SOLE   30,100 0 0
Perion Network, Ltd. com M78673114   6,259,220 247,400 SH   SOLE   247,400 0 0
Photronics, Inc. com 719405102   1,965,744 116,800 SH   SOLE   116,800 0 0
Pinduoduo Inc. com 722304102   2,854,250 35,000 SH   SOLE   35,000 0 0
Playa Hotels & Resorts N.V. com N70544106   1,855,173 284,100 SH   SOLE   284,100 0 0
Preferred Bank com 740367404   2,253,524 30,200 SH   SOLE   30,200 0 0
Quaker Chemical Corporation com 747316107   1,936,040 11,600 SH   SOLE   11,600 0 0
RF Industries Ltd. com 749552105   324,334 63,100 SH   SOLE   63,100 0 0
RPC, Inc. com 749660106   2,603,881 292,900 SH   SOLE   237,500 0 55,400
Resmed Inc. com 761152107   301,789 1,450 SH   SOLE   0 0 1,450
Rocky Brands, Inc. com 774515100   850,320 36,000 SH   SOLE   36,000 0 0
SP Plus Corporation com 78469C103   2,347,072 67,600 SH   SOLE   67,600 0 0
Scansource, Inc. com 806037107   1,367,496 46,800 SH   SOLE   46,800 0 0
SeaWorld Entertainment Inc. com 81282v100   3,060,772 57,200 SH   SOLE   42,120 0 15,080
ShockWave Medical, Inc. com 82489T104   1,058,892 5,150 SH   SOLE   5,150 0 0
Silicon Laboratories, Inc. com 826919102   1,580,556 11,650 SH   SOLE   11,650 0 0
Sterling Construction Co., Inc com 859241101   2,643,680 80,600 SH   SOLE   80,600 0 0
SunOpta, Inc. com 8676EP108   2,216,344 262,600 SH   SOLE   262,600 0 0
Super Micro Computer Inc. com 86800U104   9,953,804 121,240 SH   SOLE   91,800 0 29,440
Synaptics, Inc. com 87157D109   3,464,776 36,410 SH   SOLE   30,190 0 6,220
Tactile Sys Technology, Inc. com 87357P100   2,344,216 204,200 SH   SOLE   204,200 0 0
Tal Education Group ADR com 874080104   669,750 95,000 SH   SOLE   95,000 0 0
Tencent Music Entertainment com 88034P109   1,449,000 175,000 SH   SOLE   175,000 0 0
Texas Roadhouse com 882681109   864,025 9,500 SH   SOLE   9,500 0 0
The Chefs Warehouse, Inc. com 163086101   2,226,432 66,900 SH   SOLE   66,900 0 0
The Travelers Co., Inc. com 89417E109   417,464 2,227 SH   SOLE   0 0 2,227
Titan Int'l Inc. com 88830M102   3,450,064 225,200 SH   SOLE   225,200 0 0
Titan Machinery, Inc. com 88830R101   1,573,308 39,600 SH   SOLE   39,600 0 0
Titan Oil & Gas, Inc. com 888309101   0 10,000 SH   SOLE   0 0 10,000
Topgolf Callaway Brands Corp. com 131193104   1,655,050 83,800 SH   SOLE   83,800 0 0
TransMedics Group, Inc. com 89377M109   5,085,728 82,400 SH   SOLE   82,400 0 0
UFP Industries, Inc. com 90278Q108   1,164,975 14,700 SH   SOLE   14,700 0 0
UNUM Group com 91529Y106   1,189,870 29,000 SH   SOLE   29,000 0 0
Ultra Clean Holdings com 90385V107   2,250,885 67,900 SH   SOLE   67,900 0 0
Univar Solutions, Inc. com 91336L107   1,726,740 54,300 SH   SOLE   54,300 0 0
V2X, Inc. com 92242T101   2,068,629 50,100 SH   SOLE   50,100 0 0
VSE Corp. com 918284100   1,223,568 26,100 SH   SOLE   26,100 0 0
Veracyte, Inc. com 92337F107   2,192,652 92,400 SH   SOLE   92,400 0 0
Veritiv Corp. com 923454102   7,563,303 62,142 SH   SOLE   62,142 0 0
Viad Corp. com 92552R406   1,246,329 51,100 SH   SOLE   51,100 0 0
Vishay Precision Group com 92835K103   1,685,140 43,600 SH   SOLE   43,600 0 0
Visteon Corp. com 92839U206   2,930,592 22,400 SH   SOLE   22,400 0 0
Wal Mart Stores Inc. com 931142103   224,807 1,585 SH   SOLE   0 0 1,585
Washington Federal, Inc. com 938824109   1,449,360 43,200 SH   SOLE   43,200 0 0
Xenacare Hldgs, Inc. com 98401A106   0 140,000 SH   SOLE   0 0 140,000
Yum China Hldgs, Inc. com 98850P109   573,825 10,500 SH   SOLE   10,500 0 0
SPDR S&P 500 ETF Trust com 78462F103   1,366,909 3,574 SH   SOLE   0 0 3,574