Oberweis Asset Management 13FHR Quarterly holdings report by institutional manager | SEC 16 May 22

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

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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	(x$1000)	PRN AMT	PRN	CALL	DISCRETION	MANAGER	SOLE	SHARED	NONE
ABM Industries, Inc.	com	000957100	391	8,500	SH		SOLE		8,500	0	0
ACM Research, Inc. Class A	com	00108J109	1,324	64,000	SH		SOLE		64,000	0	0
AFYA Ltd.	com	G01125106	180	12,500	SH		SOLE		12,500	0	0
AMN Healthcare Svcs	com	001744101	365	3,500	SH		SOLE		3,500	0	0
AMR Corp Escrow	com	001ESC102	0	18,000	SH		SOLE		18,000	0	0
Acadia Healthcare Co., Inc.	com	00404A109	5,019	76,595	SH		SOLE		56,950	0	19,645
Adtran, Inc.	com	00738A106	1,096	59,400	SH		SOLE		59,400	0	0
Aehr Test Systems	com	00760J108	1,811	178,200	SH		SOLE		178,200	0	0
Allied Motion Technologies	com	019330109	1,167	39,100	SH		SOLE		39,100	0	0
Alpha & Omega Semiconductor	com	G6331P104	4,044	74,000	SH		SOLE		74,000	0	0
Alphabet, Inc. Cl C	com	02079k107	223	80	SH		SOLE		0	0	80
Alphatec Hldgs Inc.	com	02081G201	5,130	446,060	SH		SOLE		399,050	0	47,010
Amazon.com	com	023135106	326	100	SH		SOLE		0	0	100
Ameresco, Inc.	com	02361E108	3,618	45,508	SH		SOLE		45,508	0	0
American Power Corp	com	02906T107	0	10,000	SH		SOLE		0	0	10,000
Amgen, Inc.	com	031162100	333	1,379	SH		SOLE		0	0	1,379
Amphastar Pharmaceuticals, Inc	com	03209R103	485	13,500	SH		SOLE		13,500	0	0
Amtech Systems, Inc.	com	032332504	1,114	110,700	SH		SOLE		110,700	0	0
Angiodynamics, Inc.	com	03475v101	5,175	240,270	SH		SOLE		202,300	0	37,970
Antares Pharma, Inc.	com	036642106	1,411	344,200	SH		SOLE		344,200	0	0
Apple, Inc.	com	037833100	1,042	5,967	SH		SOLE		240	0	5,727
Applied Industrial	com	03820c105	308	3,000	SH		SOLE		3,000	0	0
Arco Platform Ltd. Com Cl A	com	G04553106	264	12,500	SH		SOLE		12,500	0	0
Arlo Technologies, Inc.	com	04206A101	970	109,500	SH		SOLE		109,500	0	0
Avatar Ventures	com	05350B100	0	10,000	SH		SOLE		0	0	10,000
Aviat Networks, Inc.	com	05366Y201	2,253	73,207	SH		SOLE		73,207	0	0
Avid Technology, Inc.	com	05367P100	1,461	41,900	SH		SOLE		41,900	0	0
Avient Corporation	com	05368V106	240	5,000	SH		SOLE		5,000	0	0
Axcelis Technologies	com	054540208	14,486	191,790	SH		SOLE		160,370	0	31,420
BHP Billiton Ltd. ADR	com	088606108	210	2,718	SH		SOLE		140	0	2,578
BJs Wholesale Club Holdings, I	com	05550J101	1,543	22,820	SH		SOLE		7,410	0	15,410
BRP Group, Inc.	com	05589G102	252	9,400	SH		SOLE		9,400	0	0
Bel Fuse, Inc.	com	077347300	1,479	82,900	SH		SOLE		82,900	0	0
Belden, Inc.	com	077454106	2,661	48,026	SH		SOLE		29,771	0	18,255
Boot Barn Hldgs, Inc.	com	099406100	4,747	50,080	SH		SOLE		50,080	0	0
Builders Firstsource	com	12008R107	1,417	21,960	SH		SOLE		2,140	0	19,820
CTS Corp.	com	126501105	1,753	49,600	SH		SOLE		49,600	0	0
Cabot Corp.	com	127055101	486	7,100	SH		SOLE		7,100	0	0
Cadence Design System, Inc.	com	127387108	4,128	25,100	SH		SOLE		25,100	0	0
Camtek, Ltd.	com	M20791105	1,766	57,980	SH		SOLE		57,980	0	0
CarGurus, Inc.	com	141788109	856	20,150	SH		SOLE		16,200	0	3,950
Cerus Corp.	com	157085101	1,096	199,600	SH		SOLE		199,600	0	0
Ceva Inc.	com	157210105	1,488	36,600	SH		SOLE		36,600	0	0
ChannelAdvisor Corporation	com	159179100	2,953	178,240	SH		SOLE		98,480	0	79,760
Clean Harbors, Inc.	com	184496107	547	4,900	SH		SOLE		4,900	0	0
Clearfield, Inc.	com	18482P103	3,163	48,500	SH		SOLE		48,500	0	0
Constellium NV Cl A	com	F21107101	99,848	5,547,097	SH		SOLE		4,114,839	0	1,432,258
Controladora Vuela Comp de Avi	com	21240E105	255	14,000	SH		SOLE		14,000	0	0
Crocs, Inc.	com	227046109	7,469	97,760	SH		SOLE		77,880	0	19,880
Cross Country Healthcare, Inc.	com	227483104	2,537	117,056	SH		SOLE		117,056	0	0
Cyberoptics Corp.	com	232517102	1,765	43,500	SH		SOLE		43,500	0	0
DZS, Inc.	com	268211109	1,662	119,800	SH		SOLE		119,800	0	0
Dada Nexus Limited	com	23344D108	3,277	358,955	SH		SOLE		358,955	0	0
Datadog, Inc. Class A	com	23804L103	5,635	37,200	SH		SOLE		37,200	0	0
Deckers Outdoor Corp.	com	243537107	6,921	25,280	SH		SOLE		19,560	0	5,720
Despegar Com Corp.	com	G27358103	142	11,600	SH		SOLE		11,600	0	0
Diodes, Inc.	com	254543101	426	4,900	SH		SOLE		4,900	0	0
Dynavax Technologies Corp.	com	268158201	1,143	105,400	SH		SOLE		105,400	0	0
Earthstone Energy Inc.	com	27032D304	1,076	85,200	SH		SOLE		85,200	0	0
Employers Holdings, Inc.	com	292218104	1,128	27,500	SH		SOLE		27,500	0	0
EnPro Industries, Inc.	com	29355x107	1,847	18,900	SH		SOLE		18,900	0	0
Endava Plc Ads	com	29260V105	55,179	414,787	SH		SOLE		310,638	0	104,149
Entravision Communications	com	29382r107	1,731	270,100	SH		SOLE		270,100	0	0
Everi Hldgs, Inc.	com	30034T103	2,390	113,800	SH		SOLE		113,800	0	0
Evolent Health, Inc.	com	30050B101	552	17,100	SH		SOLE		17,100	0	0
Extreme Networks, Inc.	com	30226D106	2,010	164,600	SH		SOLE		164,600	0	0
First Foundation Inc.	com	32026V104	855	35,200	SH		SOLE		35,200	0	0
Focus Finl Partners, Inc.	com	34417P100	306	6,700	SH		SOLE		6,700	0	0
Forrester Research, Inc.	com	346563109	3,041	53,900	SH		SOLE		53,900	0	0
Franklin Covey Co.	com	353469109	1,872	41,400	SH		SOLE		41,400	0	0
Franklin Electric	com	353514102	424	5,100	SH		SOLE		5,100	0	0
Full House Resorts, Inc.	com	359678109	1,831	190,543	SH		SOLE		190,543	0	0
Funko, Inc.	com	361008105	1,973	114,400	SH		SOLE		114,400	0	0
Guess, Inc	com	401617105	4,163	190,531	SH		SOLE		146,900	0	43,631
Hackett Group, Inc.	com	404609109	1,965	85,200	SH		SOLE		85,200	0	0
Halozyme Therapeutics, Inc.	com	40637H109	4,285	107,450	SH		SOLE		85,660	0	21,790
ICF International, Inc.	com	44925C103	2,184	23,200	SH		SOLE		23,200	0	0
Impinj, Inc.	com	453204109	1,569	24,700	SH		SOLE		24,700	0	0
Information Svcs Group, Inc.	com	45675Y104	1,676	246,100	SH		SOLE		246,100	0	0
Inmode Ltd.	com	M5425M103	1,932	52,350	SH		SOLE		40,660	0	11,690
Inotiv, Inc.	com	45783Q100	1,805	68,944	SH		SOLE		68,944	0	0
Intel Corporation	com	458140100	242	4,880	SH		SOLE		0	0	4,880
Inter Parfums	com	458334109	484	5,500	SH		SOLE		5,500	0	0
International Money Express, I	com	46005L101	1,445	70,100	SH		SOLE		70,100	0	0
JP Morgan Chase & Company Inc.	com	46625H100	552	4,050	SH		SOLE		140	0	3,910
Johnson & Johnson	com	478160104	476	2,688	SH		SOLE		0	0	2,688
Johnson Outdoors, Inc.	com	479167108	1,096	14,100	SH		SOLE		14,100	0	0
KForce, Inc.	com	493732101	1,272	17,200	SH		SOLE		17,200	0	0
Knowles Corp.	com	49926D109	269	12,500	SH		SOLE		12,500	0	0
Korn Ferry	com	500643200	455	7,000	SH		SOLE		7,000	0	0
Lantheus Hldgs Inc.	com	516544103	11,408	206,260	SH		SOLE		191,520	0	14,740
Lifetime Brands, Inc.	com	53222q103	776	60,400	SH		SOLE		60,400	0	0
Liveramp Hldgs, Inc.	com	53815P108	221	5,900	SH		SOLE		5,900	0	0
Lovesac Company	com	54738L109	1,865	34,500	SH		SOLE		34,500	0	0
M/I Homes, Inc.	com	55305B101	1,574	35,500	SH		SOLE		35,500	0	0
Macom Technology Solutions	com	55405Y100	281	4,700	SH		SOLE		4,700	0	0
Magnolia Oil & Gas Corp.	com	559663109	284	12,000	SH		SOLE		12,000	0	0
Malibu Boats, Inc.	com	56117J100	2,446	42,170	SH		SOLE		29,820	0	12,350
Mastercard, Inc.	com	57636Q104	341	954	SH		SOLE		0	0	954
Materion Corp.	com	576690101	8,532	99,505	SH		SOLE		76,015	0	23,490
Maxlinear, Inc. Class A	com	57776J100	2,077	35,600	SH		SOLE		12,950	0	22,650
McDonald's Corporation	com	580135101	206	835	SH		SOLE		0	0	835
Mercantile Bank Corp.	com	587376104	1,411	39,839	SH		SOLE		21,900	0	17,939
Merit Medical System Inc	com	589889104	452	6,800	SH		SOLE		6,800	0	0
Microsoft Corp.	com	594918104	942	3,055	SH		SOLE		0	0	3,055
Model N, Inc.	com	607525102	3,211	119,360	SH		SOLE		97,180	0	22,180
Monarch Casino & Resort, Inc.	com	609027107	2,163	24,800	SH		SOLE		24,800	0	0
Movado Group, Inc.	com	624580106	2,156	55,200	SH		SOLE		55,200	0	0
NOV, Inc.	com	62955J103	298	15,200	SH		SOLE		15,200	0	0
NV5 Global, Inc	com	62945V109	293	2,200	SH		SOLE		2,200	0	0
Newmont Mining	com	651639106	465	5,857	SH		SOLE		400	0	5,457
Nova Measuring Instruments	com	M7516K103	61,681	566,500	SH		SOLE		420,200	0	146,300
OOMA Inc.	com	683416101	874	58,300	SH		SOLE		58,300	0	0
Option Care Health Inc.	com	68404L201	331	11,600	SH		SOLE		11,600	0	0
PDC Energy, Inc.	com	69327R101	320	4,400	SH		SOLE		4,400	0	0
Patrick Industries, Inc.	com	703343103	320	5,300	SH		SOLE		5,300	0	0
Patterson-Uti Energy, Inc.	com	703481101	1,938	125,200	SH		SOLE		125,200	0	0
Perficient Inc.	com	71375U101	1,894	17,200	SH		SOLE		17,200	0	0
Perion Network, Ltd.	com	M78673114	2,885	128,300	SH		SOLE		128,300	0	0
Photronics, Inc.	com	719405102	1,612	95,000	SH		SOLE		95,000	0	0
Pinduoduo Inc.	com	722304102	1,404	35,000	SH		SOLE		35,000	0	0
Preformed Line Prods Co.	com	740444104	444	7,000	SH		SOLE		7,000	0	0
RF Industries Ltd.	com	749552105	469	65,000	SH		SOLE		65,000	0	0
RPC, Inc.	com	749660106	2,021	189,400	SH		SOLE		189,400	0	0
Radnet, Inc.	com	750491102	1,228	54,900	SH		SOLE		54,900	0	0
Rapid7, Inc.	com	753422104	2,821	25,360	SH		SOLE		14,940	0	10,420
Resmed Inc.	com	761152107	352	1,450	SH		SOLE		0	0	1,450
Resources Connection, Inc.	com	76122q105	2,044	119,269	SH		SOLE		119,269	0	0
Revolve Group, Inc.	com	76156B107	430	8,000	SH		SOLE		8,000	0	0
Rocky Brands, Inc.	com	774515100	1,327	31,900	SH		SOLE		31,900	0	0
SP Plus Corporation	com	78469C103	1,261	40,200	SH		SOLE		40,200	0	0
Scansource, Inc.	com	806037107	1,496	43,000	SH		SOLE		43,000	0	0
SeaWorld Entertainment Inc.	com	81282v100	2,200	29,560	SH		SOLE		11,020	0	18,540
Shutterstock, Inc.	com	825690100	3,230	34,702	SH		SOLE		14,305	0	20,397
Shyft Group, Inc.	com	825698103	1,434	39,700	SH		SOLE		39,700	0	0
Sierra Wireless, Inc.	com	826516106	1,795	99,489	SH		SOLE		99,489	0	0
Skyline Champion Corporation	com	830830105	1,045	19,040	SH		SOLE		18,590	0	450
Smart Global Hldgs, Inc.	com	G8232Y101	1,795	69,500	SH		SOLE		69,500	0	0
Sterling Construction Co., Inc	com	859241101	2,152	80,300	SH		SOLE		80,300	0	0
Stewart Information Services	com	860372101	206	3,400	SH		SOLE		3,400	0	0
Stride, Inc.	com	86333M108	509	14,000	SH		SOLE		14,000	0	0
Synaptics, Inc.	com	87157D109	10,512	52,690	SH		SOLE		39,880	0	12,810
Taiwan Semiconductor	com	874039100	1,147	11,000	SH		SOLE		11,000	0	0
Techtarget, Inc.	com	87874R100	276	3,400	SH		SOLE		3,400	0	0
Teradata Corp	com	88076W103	1,384	28,080	SH		SOLE		25,920	0	2,160
The Travelers Co., Inc.	com	89417E109	406	2,220	SH		SOLE		0	0	2,220
Titan Int'l Inc.	com	88830M102	1,282	87,000	SH		SOLE		87,000	0	0
Titan Machinery, Inc.	com	88830R101	1,116	39,500	SH		SOLE		39,500	0	0
Titan Oil & Gas, Inc.	com	888309101	0	10,000	SH		SOLE		0	0	10,000
Trex Company, Inc.	com	89531P105	559	8,560	SH		SOLE		1,080	0	7,480
TrueBlue, Inc.	com	89785X101	1,473	51,000	SH		SOLE		51,000	0	0
UFP Industries, Inc.	com	90278Q108	270	3,500	SH		SOLE		3,500	0	0
Ultra Clean Holdings	com	90385V107	6,788	160,140	SH		SOLE		132,560	0	27,580
Univar Solutions, Inc.	com	91336L107	389	12,100	SH		SOLE		12,100	0	0
Universal Technical Inst, Inc.	com	913915104	720	81,300	SH		SOLE		81,300	0	0
Veritiv Corp.	com	923454102	6,672	49,942	SH		SOLE		49,942	0	0
Verizon Communications	com	92343V104	217	4,253	SH		SOLE		0	0	4,253
Vishay Precision Group	com	92835K103	1,392	43,300	SH		SOLE		43,300	0	0
Visteon Corp.	com	92839U206	284	2,600	SH		SOLE		2,600	0	0
Wal Mart Stores Inc.	com	931142103	236	1,582	SH		SOLE		0	0	1,582
Xenacare Hldgs, Inc.	com	98401A106	0	140,000	SH		SOLE		0	0	140,000
Yum China Hldgs, Inc.	com	98850P109	1,059	25,500	SH		SOLE		25,500	0	0
ZipRecruiter, Inc.	com	98980B103	308	13,400	SH		SOLE		13,400	0	0
a.k.a. Brands Hldg Corp.	com	00152K101	164	37,040	SH		SOLE		37,040	0	0
SPDR S&P 500 ETF Trust	com	78462F103	1,638	3,627	SH		SOLE		0	0	3,627

Oberweis Asset Management 13F-HRQuarterly holdings report by institutional manager