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Form 13F-HR OBERWEIS ASSET MANAGEMEN For: Jun 30

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August 15, 2022 12:10 PM EDT

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 COVER PAGE
OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8
Report for the Calendar Year or Quarter Ended: 06-30-2022
Check here if Amendment   Amendment Number:
This Amendment (Check only one.):   is a restatement.
  adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: OBERWEIS ASSET MANAGEMENT INC/
Address: 3333 Warrenville Road
Suite 500
Lisle , IL60532
Form 13F File Number: 028-04688

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: Patrick B. Joyce
Title: Executive Vice President
Phone: 800-323-6166
Signature, Place, and Date of Signing:
/s/ Patrick B. Joyce Lisle , IL 08-15-2022
[Signature] [City, State] [Date]
Report Type (Check only one.):
X 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
  13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
  13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 164
Form 13F Information Table Value Total: 395,125
(thousands)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name

List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Form 13F File Number Name

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
Expires: July 31, 2015
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
A10 Networks, Inc. com 002121101 1,481 103,000 SH SOLE 103,000 0 0
ABM Industries, Inc. com 000957100 460 10,600 SH SOLE 10,600 0 0
AFYA Ltd. com G01125106 124 12,500 SH SOLE 12,500 0 0
AMN Healthcare Svcs com 001744101 472 4,300 SH SOLE 4,300 0 0
AMR Corp Escrow com 001ESC102 0 18,000 SH SOLE 18,000 0 0
Acadia Healthcare Co., Inc. com 00404A109 4,505 66,615 SH SOLE 47,680 0 18,935
Adtran, Inc. com 00486H105 1,252 71,400 SH SOLE 71,400 0 0
Aehr Test Systems com 00760J108 1,315 175,300 SH SOLE 175,300 0 0
Allied Motion Technologies com 019330109 879 38,500 SH SOLE 38,500 0 0
Alpha & Omega Semiconductor com G6331P104 2,067 62,000 SH SOLE 62,000 0 0
Alphatec Hldgs Inc. com 02081G201 2,630 402,160 SH SOLE 355,150 0 47,010
Amazon.com com 023135106 212 2,000 SH SOLE 0 0 2,000
Ameresco, Inc. com 02361E108 2,005 44,008 SH SOLE 44,008 0 0
American Power Corp com 02906T107 0 10,000 SH SOLE 0 0 10,000
Amgen, Inc. com 031162100 336 1,379 SH SOLE 0 0 1,379
Amphastar Pharmaceuticals, Inc com 03209R103 623 17,900 SH SOLE 17,900 0 0
Amtech Systems, Inc. com 032332504 795 108,900 SH SOLE 108,900 0 0
Angiodynamics, Inc. com 03475v101 3,463 178,950 SH SOLE 142,100 0 36,850
Apple, Inc. com 037833100 773 5,657 SH SOLE 240 0 5,417
Applied Industrial com 03820c105 490 5,100 SH SOLE 5,100 0 0
Arco Platform Ltd. Com Cl A com G04553106 187 12,500 SH SOLE 12,500 0 0
Arlo Technologies, Inc. com 04206A101 1,056 168,500 SH SOLE 168,500 0 0
Avatar Ventures com 05350B100 0 10,000 SH SOLE 0 0 10,000
Aviat Networks, Inc. com 05366Y201 1,803 72,007 SH SOLE 72,007 0 0
Avid Technology, Inc. com 05367P100 815 31,400 SH SOLE 31,400 0 0
Avient Corporation com 05368V106 333 8,300 SH SOLE 8,300 0 0
Axcelis Technologies com 054540208 11,419 208,220 SH SOLE 173,540 0 34,680
Banc of California, Inc. com 05990K106 470 26,700 SH SOLE 26,700 0 0
Bel Fuse, Inc. com 077347300 1,268 81,500 SH SOLE 81,500 0 0
Belden, Inc. com 077454106 2,944 55,260 SH SOLE 35,322 0 19,938
Boot Barn Hldgs, Inc. com 099406100 3,541 51,380 SH SOLE 51,380 0 0
Builders Firstsource com 12008R107 1,104 20,550 SH SOLE 2,140 0 18,410
CTS Corp. com 126501105 1,345 39,500 SH SOLE 39,500 0 0
Cabot Corp. com 127055101 1,152 18,062 SH SOLE 18,062 0 0
Cadence Design System, Inc. com 127387108 4,021 26,800 SH SOLE 26,800 0 0
Callaway Golf com 131193104 498 24,400 SH SOLE 24,400 0 0
Camtek, Ltd. com M20791105 1,489 59,880 SH SOLE 59,880 0 0
CarGurus, Inc. com 141788109 254 11,800 SH SOLE 11,800 0 0
Cerus Corp. com 157085101 1,038 196,300 SH SOLE 196,300 0 0
Ceva Inc. com 157210105 1,302 38,800 SH SOLE 38,800 0 0
ChannelAdvisor Corporation com 159179100 2,145 147,140 SH SOLE 81,480 0 65,660
Clean Harbors, Inc. com 184496107 1,042 11,890 SH SOLE 11,780 0 110
Clearfield, Inc. com 18482P103 3,271 52,800 SH SOLE 52,800 0 0
Constellium NV Cl A com F21107101 69,655 5,272,876 SH SOLE 3,848,618 0 1,424,258
Controladora Vuela Comp de Avi com 21240E105 144 14,000 SH SOLE 14,000 0 0
Crocs, Inc. com 227046109 4,889 100,450 SH SOLE 78,380 0 22,070
Cross Country Healthcare, Inc. com 227483104 2,018 96,900 SH SOLE 96,900 0 0
Cyberoptics Corp. com 232517102 1,495 42,800 SH SOLE 42,800 0 0
DZS, Inc. com 268211109 1,917 117,800 SH SOLE 117,800 0 0
Dada Nexus Limited com 23344D108 4,394 541,745 SH SOLE 540,345 0 1,400
Datadog, Inc. Class A com 23804L103 4,743 49,800 SH SOLE 49,800 0 0
Deckers Outdoor Corp. com 243537107 6,578 25,760 SH SOLE 19,760 0 6,000
Delta Apparel com 247368103 613 21,600 SH SOLE 21,600 0 0
Despegar Com Corp. com G27358103 94 11,600 SH SOLE 11,600 0 0
Diodes, Inc. com 254543101 446 6,900 SH SOLE 6,900 0 0
Dynavax Technologies Corp. com 268158201 1,727 137,200 SH SOLE 137,200 0 0
EZCorp, Inc. com 302301106 1,188 158,200 SH SOLE 158,200 0 0
Earthstone Energy Inc. com 27032D304 1,144 83,800 SH SOLE 83,800 0 0
Eli Lilly & Company com 532457108 217 668 SH SOLE 0 0 668
Employers Holdings, Inc. com 292218104 1,131 27,000 SH SOLE 27,000 0 0
EnPro Industries, Inc. com 29355x107 1,524 18,600 SH SOLE 18,600 0 0
Endava Plc Ads com 29260V105 34,945 395,888 SH SOLE 291,739 0 104,149
Everi Hldgs, Inc. com 30034T103 2,106 129,100 SH SOLE 129,100 0 0
Evolent Health, Inc. com 30050B101 2,405 78,310 SH SOLE 51,910 0 26,400
Extreme Networks, Inc. com 30226D106 1,193 133,800 SH SOLE 133,800 0 0
First Foundation Inc. com 32026V104 956 46,700 SH SOLE 46,700 0 0
FirstCash Holdings, Inc com 33768G107 487 7,000 SH SOLE 7,000 0 0
Focus Finl Partners, Inc. com 34417P100 259 7,600 SH SOLE 7,600 0 0
Forrester Research, Inc. com 346563109 2,660 55,600 SH SOLE 55,600 0 0
Franklin Covey Co. com 353469109 1,699 36,800 SH SOLE 36,800 0 0
Franklin Electric com 353514102 498 6,800 SH SOLE 6,800 0 0
Full House Resorts, Inc. com 359678109 1,373 225,743 SH SOLE 225,743 0 0
Funko, Inc. com 361008105 3,190 142,900 SH SOLE 142,900 0 0
Global Inudstrial Company com 37892E102 1,098 32,500 SH SOLE 32,500 0 0
Guess, Inc com 401617105 3,210 188,298 SH SOLE 148,100 0 40,198
Hackett Group, Inc. com 404609109 1,504 79,300 SH SOLE 79,300 0 0
Halozyme Therapeutics, Inc. com 40637H109 4,534 103,050 SH SOLE 81,960 0 21,090
ICF International, Inc. com 44925C103 2,347 24,700 SH SOLE 24,700 0 0
Impinj, Inc. com 453204109 1,701 29,000 SH SOLE 29,000 0 0
Information Svcs Group, Inc. com 45675Y104 1,637 242,100 SH SOLE 242,100 0 0
Inmode Ltd. com M5425M103 1,113 49,650 SH SOLE 37,660 0 11,990
Insperity, Inc. com 45778Q107 399 4,000 SH SOLE 4,000 0 0
Inter Parfums com 458334109 497 6,800 SH SOLE 6,800 0 0
International Money Express, I com 46005L101 1,754 85,700 SH SOLE 85,700 0 0
JP Morgan Chase & Company Inc. com 46625H100 460 4,083 SH SOLE 140 0 3,943
Johnson & Johnson com 478160104 479 2,700 SH SOLE 0 0 2,700
KE Holdings, Inc. com 482497104 1,616 90,000 SH SOLE 90,000 0 0
KForce, Inc. com 493732101 1,037 16,900 SH SOLE 16,900 0 0
Kingsoft Cloud Holdings Limite com 49639K101 540 121,400 SH SOLE 121,400 0 0
Korn Ferry com 500643200 493 8,500 SH SOLE 8,500 0 0
Lantheus Hldgs Inc. com 516544103 13,390 202,780 SH SOLE 180,050 0 22,730
M/I Homes, Inc. com 55305B101 1,428 36,000 SH SOLE 36,000 0 0
MGP Ingredients, Inc. com 55303J106 726 7,250 SH SOLE 7,100 0 150
Macom Technology Solutions com 55405Y100 346 7,500 SH SOLE 7,500 0 0
Magnolia Oil & Gas Corp. com 559663109 311 14,800 SH SOLE 14,800 0 0
Malibu Boats, Inc. com 56117J100 608 11,540 SH SOLE 1,590 0 9,950
Mastercard, Inc. com 57636Q104 304 965 SH SOLE 0 0 965
Materion Corp. com 576690101 6,688 90,715 SH SOLE 67,218 0 23,496
Maxlinear, Inc. Class A com 57776J100 1,721 50,635 SH SOLE 25,820 0 24,815
McDonald's Corporation com 580135101 206 836 SH SOLE 0 0 836
Mercantile Bank Corp. com 587376104 1,351 42,296 SH SOLE 21,900 0 20,396
Merit Medical System Inc com 589889104 461 8,500 SH SOLE 8,500 0 0
Microsoft Corp. com 594918104 785 3,055 SH SOLE 0 0 3,055
Model N, Inc. com 607525102 3,072 120,110 SH SOLE 96,380 0 23,730
Monarch Casino & Resort, Inc. com 609027107 364 6,200 SH SOLE 6,200 0 0
Movado Group, Inc. com 624580106 1,494 48,300 SH SOLE 48,300 0 0
NOV, Inc. com 62955J103 350 20,700 SH SOLE 20,700 0 0
NV5 Global, Inc com 62945V109 315 2,700 SH SOLE 2,700 0 0
Newmont Mining com 651639106 350 5,865 SH SOLE 400 0 5,465
Nova Measuring Instruments com M7516K103 47,797 539,892 SH SOLE 393,592 0 146,300
O-I Glass, Inc. com 67098H104 364 26,000 SH SOLE 26,000 0 0
OOMA Inc. com 683416101 678 57,300 SH SOLE 57,300 0 0
Option Care Health Inc. com 68404L201 514 18,500 SH SOLE 18,500 0 0
Oxford Inds, Inc. com 691497309 1,402 15,800 SH SOLE 15,800 0 0
PDC Energy, Inc. com 69327R101 302 4,900 SH SOLE 4,900 0 0
Patrick Industries, Inc. com 703343103 311 6,000 SH SOLE 6,000 0 0
Patterson-Uti Energy, Inc. com 703481101 1,940 123,100 SH SOLE 123,100 0 0
Perficient Inc. com 71375U101 1,550 16,900 SH SOLE 16,900 0 0
Perion Network, Ltd. com M78673114 2,623 144,300 SH SOLE 144,300 0 0
Photronics, Inc. com 719405102 2,032 104,300 SH SOLE 104,300 0 0
Pinduoduo Inc. com 722304102 2,472 40,000 SH SOLE 40,000 0 0
RF Industries Ltd. com 749552105 396 63,900 SH SOLE 63,900 0 0
RPC, Inc. com 749660106 1,495 216,300 SH SOLE 216,300 0 0
Radnet, Inc. com 750491102 895 51,800 SH SOLE 51,800 0 0
Rapid7, Inc. com 753422104 1,707 25,550 SH SOLE 15,240 0 10,310
Resmed Inc. com 761152107 304 1,450 SH SOLE 0 0 1,450
Resources Connection, Inc. com 76122q105 2,473 121,400 SH SOLE 121,400 0 0
Rocky Brands, Inc. com 774515100 1,210 35,400 SH SOLE 35,400 0 0
SP Plus Corporation com 78469C103 1,213 39,500 SH SOLE 39,500 0 0
Scansource, Inc. com 806037107 1,660 53,300 SH SOLE 53,300 0 0
SeaWorld Entertainment Inc. com 81282v100 1,412 31,960 SH SOLE 12,920 0 19,040
ShockWave Medical, Inc. com 82489T104 220 1,150 SH SOLE 1,150 0 0
Sierra Wireless, Inc. com 826516106 3,363 143,700 SH SOLE 143,700 0 0
Silicon Laboratories, Inc. com 826919102 526 3,750 SH SOLE 3,750 0 0
Skyline Champion Corporation com 830830105 1,038 21,890 SH SOLE 19,090 0 2,800
Smart Global Hldgs, Inc. com G8232Y101 1,054 64,400 SH SOLE 64,400 0 0
Sterling Construction Co., Inc com 859241101 1,732 79,000 SH SOLE 79,000 0 0
Stewart Information Services com 860372101 249 5,000 SH SOLE 5,000 0 0
Stride, Inc. com 86333M108 759 18,600 SH SOLE 18,600 0 0
Super Micro Computer Inc. com 86800U104 1,621 40,170 SH SOLE 22,930 0 17,240
Synaptics, Inc. com 87157D109 6,387 54,100 SH SOLE 40,380 0 13,720
Techtarget, Inc. com 87874R100 361 5,500 SH SOLE 5,500 0 0
Teradata Corp com 88076W103 1,154 31,180 SH SOLE 28,820 0 2,360
The Travelers Co., Inc. com 89417E109 376 2,222 SH SOLE 0 0 2,222
Titan Int'l Inc. com 88830M102 2,227 147,500 SH SOLE 147,500 0 0
Titan Machinery, Inc. com 88830R101 872 38,900 SH SOLE 38,900 0 0
Titan Oil & Gas, Inc. com 888309101 0 10,000 SH SOLE 0 0 10,000
Trex Company, Inc. com 89531P105 477 8,760 SH SOLE 1,080 0 7,680
Tri Pointe Homes, Inc. com 87265H109 192 11,400 SH SOLE 11,400 0 0
TrueBlue, Inc. com 89785X101 929 51,900 SH SOLE 51,900 0 0
UFP Industries, Inc. com 90278Q108 327 4,800 SH SOLE 4,800 0 0
Ultra Clean Holdings com 90385V107 3,309 111,140 SH SOLE 101,760 0 9,380
Univar Solutions, Inc. com 91336L107 373 15,000 SH SOLE 15,000 0 0
Universal Technical Inst, Inc. com 913915104 570 80,000 SH SOLE 80,000 0 0
VSE Corp. com 918284100 887 23,600 SH SOLE 23,600 0 0
Veritiv Corp. com 923454102 5,584 51,442 SH SOLE 51,442 0 0
Verizon Communications com 92343V104 216 4,265 SH SOLE 0 0 4,265
Vishay Precision Group com 92835K103 1,241 42,600 SH SOLE 42,600 0 0
Visteon Corp. com 92839U206 394 3,800 SH SOLE 3,800 0 0
Xenacare Hldgs, Inc. com 98401A106 0 140,000 SH SOLE 0 0 140,000
Yum China Hldgs, Inc. com 98850P109 1,237 25,500 SH SOLE 25,500 0 0
ZipRecruiter, Inc. com 98980B103 299 20,200 SH SOLE 20,200 0 0
SPDR S&P 500 ETF Trust com 78462F103 1,372 3,636 SH SOLE 0 0 3,636
Wells Fargo Co New Perp Pfd com 949746804 273 225 SH SOLE 0 0 273

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