Oberweis Asset Management 13FHR Quarterly holdings report by institutional manager | SEC 14 Feb 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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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
AMR Corp Escrow	com	001ESC102	0	18,000	SH		SOLE		18,000	0	0
Acadia Healthcare Co., Inc.	com	00404A109	2,859	47,095	SH		SOLE		28,010	0	19,085
Adtran, Inc.	com	00738A106	1,356	59,400	SH		SOLE		59,400	0	0
Aehr Test Systems	com	00760J108	2,220	91,800	SH		SOLE		91,800	0	0
Allied Motion Technologies	com	019330109	1,244	34,100	SH		SOLE		34,100	0	0
Alpha & Omega Semiconductor	com	G6331P104	4,481	74,000	SH		SOLE		74,000	0	0
Alphabet, Inc. Cl C	com	02079k107	231	80	SH		SOLE		0	0	80
Alphatec Hldgs Inc.	com	02081G201	7,706	674,170	SH		SOLE		558,460	0	115,710
Amazon.com	com	023135106	333	100	SH		SOLE		0	0	100
Ameresco, Inc.	com	02361E108	2,818	34,608	SH		SOLE		34,608	0	0
American Power Corp	com	02906T107	0	10,000	SH		SOLE		0	0	10,000
Amgen, Inc.	com	031162100	310	1,378	SH		SOLE		0	0	1,378
Amphastar Pharmaceuticals, Inc	com	03209R103	314	13,500	SH		SOLE		13,500	0	0
Amtech Systems, Inc.	com	032332504	1,013	102,500	SH		SOLE		102,500	0	0
Angiodynamics, Inc.	com	03475v101	5,632	204,210	SH		SOLE		167,940	0	36,270
Antares Pharma, Inc.	com	036642106	897	251,200	SH		SOLE		251,200	0	0
Apple, Inc.	com	037833100	1,091	6,146	SH		SOLE		240	0	5,906
Arco Platform Ltd. Com Cl A	com	G04553106	261	12,500	SH		SOLE		12,500	0	0
Arconic Corporation	com	03966V107	1,894	57,370	SH		SOLE		36,220	0	21,150
Avatar Ventures	com	05350B100	0	10,000	SH		SOLE		0	0	10,000
Aviat Networks, Inc.	com	05366Y201	2,634	82,107	SH		SOLE		82,107	0	0
Avid Technology, Inc.	com	05367P100	1,208	37,100	SH		SOLE		37,100	0	0
Axcelis Technologies	com	054540208	11,557	155,000	SH		SOLE		129,980	0	25,020
BJs Wholesale Club Holdings, I	com	05550J101	1,653	24,690	SH		SOLE		8,410	0	16,280
BRP Group, Inc.	com	05589G102	267	7,400	SH		SOLE		7,400	0	0
Belden, Inc.	com	077454106	2,581	39,270	SH		SOLE		24,560	0	14,710
Boot Barn Hldgs, Inc.	com	099406100	3,753	30,500	SH		SOLE		30,500	0	0
Builders Firstsource	com	12008R107	4,275	49,880	SH		SOLE		29,810	0	20,070
CTS Corp.	com	126501105	1,696	46,200	SH		SOLE		46,200	0	0
Cabot Corp.	com	127055101	287	5,100	SH		SOLE		5,100	0	0
Cadence Design System, Inc.	com	127387108	6,876	36,900	SH		SOLE		36,900	0	0
Camtek, Ltd.	com	M20791105	2,227	48,380	SH		SOLE		48,380	0	0
CarGurus, Inc.	com	141788109	592	17,600	SH		SOLE		14,000	0	3,600
Castle Biosciences, Inc.	com	14843C105	1,126	26,260	SH		SOLE		26,260	0	0
Cerus Corp.	com	157085101	975	143,100	SH		SOLE		143,100	0	0
ChannelAdvisor Corporation	com	159179100	9,446	382,750	SH		SOLE		288,480	0	94,270
Clean Harbors, Inc.	com	184496107	289	2,900	SH		SOLE		2,900	0	0
Clearfield, Inc.	com	18482P103	3,377	40,000	SH		SOLE		40,000	0	0
Cohu, Inc.	com	192576106	1,088	28,576	SH		SOLE		28,576	0	0
Constellium NV Cl A	com	F21107101	98,356	5,491,697	SH		SOLE		4,064,939	0	1,426,758
Crocs, Inc.	com	227046109	6,406	49,960	SH		SOLE		42,840	0	7,120
Cross Country Healthcare, Inc.	com	227483104	2,163	77,900	SH		SOLE		77,900	0	0
Cyberoptics Corp.	com	232517102	1,800	38,700	SH		SOLE		38,700	0	0
DZS, Inc.	com	268211109	1,943	119,800	SH		SOLE		119,800	0	0
Dada Nexus Limited	com	23344D108	521	39,600	SH		SOLE		39,600	0	0
Datadog, Inc. Class A	com	23804L103	7,623	42,800	SH		SOLE		42,800	0	0
Deckers Outdoor Corp.	com	243537107	7,623	20,810	SH		SOLE		15,170	0	5,640
Diodes, Inc.	com	254543101	373	3,400	SH		SOLE		3,400	0	0
Dynavax Technologies Corp.	com	268158201	1,116	79,300	SH		SOLE		79,300	0	0
Earthstone Energy Inc.	com	27032D304	932	85,200	SH		SOLE		85,200	0	0
Employers Holdings, Inc.	com	292218104	1,039	25,100	SH		SOLE		25,100	0	0
EnPro Industries, Inc.	com	29355x107	1,750	15,900	SH		SOLE		15,900	0	0
Endava Plc Ads	com	29260V105	68,711	409,187	SH		SOLE		305,738	0	103,449
Entravision Communications	com	29382r107	1,831	270,100	SH		SOLE		270,100	0	0
Everi Hldgs, Inc.	com	30034T103	2,430	113,800	SH		SOLE		113,800	0	0
Extreme Networks, Inc.	com	30226D106	2,518	160,400	SH		SOLE		160,400	0	0
First Foundation Inc.	com	32026V104	838	33,700	SH		SOLE		33,700	0	0
Flexsteel Inds, Inc.	com	339382103	806	30,000	SH		SOLE		30,000	0	0
Focus Finl Partners, Inc.	com	34417P100	227	3,800	SH		SOLE		3,800	0	0
Forrester Research, Inc.	com	346563109	1,744	29,700	SH		SOLE		29,700	0	0
Full House Resorts, Inc.	com	359678109	2,307	190,543	SH		SOLE		190,543	0	0
Funko, Inc.	com	361008105	1,337	71,100	SH		SOLE		71,100	0	0
Guess, Inc	com	401617105	4,849	204,781	SH		SOLE		161,900	0	42,881
Hackett Group, Inc.	com	404609109	1,180	57,500	SH		SOLE		57,500	0	0
Halozyme Therapeutics, Inc.	com	40637H109	4,248	105,650	SH		SOLE		85,860	0	19,790
Headhunter Group Plc Spon ADR	com	42207L106	347	6,800	SH		SOLE		6,800	0	0
Healthstream Inc.	com	42222N103	1,779	67,500	SH		SOLE		67,500	0	0
Heidrick & Struggles	com	422819102	1,636	37,400	SH		SOLE		37,400	0	0
Houghton Mifflin Harcourt Comp	com	44157R109	2,008	124,700	SH		SOLE		124,700	0	0
ICF International, Inc.	com	44925C103	1,672	16,300	SH		SOLE		16,300	0	0
Identiv Inc.	com	45170X205	1,807	64,200	SH		SOLE		64,200	0	0
Information Svcs Group, Inc.	com	45675Y104	1,522	199,800	SH		SOLE		199,800	0	0
Inmode Ltd.	com	M5425M103	5,604	79,400	SH		SOLE		55,560	0	23,840
Inotiv, Inc.	com	45783Q100	987	23,457	SH		SOLE		23,457	0	0
Intel Corporation	com	458140100	251	4,880	SH		SOLE		0	0	4,880
Inter Parfums	com	458334109	588	5,500	SH		SOLE		5,500	0	0
International Money Express, I	com	46005L101	1,100	68,900	SH		SOLE		68,900	0	0
JP Morgan Chase & Company Inc.	com	46625H100	641	4,047	SH		SOLE		140	0	3,907
Johnson & Johnson	com	478160104	459	2,686	SH		SOLE		0	0	2,686
Johnson Outdoors, Inc.	com	479167108	1,321	14,100	SH		SOLE		14,100	0	0
KForce, Inc.	com	493732101	1,023	13,600	SH		SOLE		13,600	0	0
Kennametal, Inc.	com	489170100	291	8,100	SH		SOLE		8,100	0	0
Knowles Corp.	com	49926D109	292	12,500	SH		SOLE		12,500	0	0
Korn Ferry	com	500643200	492	6,500	SH		SOLE		6,500	0	0
Lantheus Hldgs Inc.	com	516544103	3,094	107,100	SH		SOLE		107,100	0	0
Lifetime Brands, Inc.	com	53222q103	965	60,400	SH		SOLE		60,400	0	0
Liveramp Hldgs, Inc.	com	53815P108	283	5,900	SH		SOLE		5,900	0	0
M/I Homes, Inc.	com	55305B101	2,170	34,900	SH		SOLE		34,900	0	0
Macom Technology Solutions	com	55405Y100	478	6,100	SH		SOLE		6,100	0	0
Magnolia Oil & Gas Corp.	com	559663109	226	12,000	SH		SOLE		12,000	0	0
Malibu Boats, Inc.	com	56117J100	2,234	32,500	SH		SOLE		20,020	0	12,480
Masonite Intl Corp.	com	575385109	2,557	21,675	SH		SOLE		17,280	0	4,395
Mastercard, Inc.	com	57636Q104	361	1,004	SH		SOLE		0	0	1,004
Materion Corp.	com	576690101	6,404	69,657	SH		SOLE		53,842	0	15,815
Maxlinear, Inc. Class A	com	57776J100	2,627	34,850	SH		SOLE		11,450	0	23,400
McDonald's Corporation	com	580135101	224	834	SH		SOLE		0	0	834
Mercantile Bank Corp.	com	587376104	1,395	39,834	SH		SOLE		21,900	0	17,934
Merit Medical System Inc	com	589889104	262	4,200	SH		SOLE		4,200	0	0
Microsoft Corp.	com	594918104	1,027	3,055	SH		SOLE		0	0	3,055
Model N, Inc.	com	607525102	2,648	88,190	SH		SOLE		66,210	0	21,980
Monarch Casino & Resort, Inc.	com	609027107	1,804	24,400	SH		SOLE		24,400	0	0
Movado Group, Inc.	com	624580106	2,016	48,200	SH		SOLE		48,200	0	0
NOV, Inc.	com	62955J103	182	13,400	SH		SOLE		13,400	0	0
Newmont Mining	com	651639106	363	5,851	SH		SOLE		400	0	5,451
Nova Measuring Instruments	com	M7516K103	77,674	530,200	SH		SOLE		394,300	0	135,900
Nvidia Corp.	com	67066G104	259	880	SH		SOLE		0	0	880
OOMA Inc.	com	683416101	1,192	58,300	SH		SOLE		58,300	0	0
Option Care Health Inc.	com	68404L201	307	10,800	SH		SOLE		10,800	0	0
PDC Energy, Inc.	com	69327R101	215	4,400	SH		SOLE		4,400	0	0
PROG Holdings, Inc.	com	74319R101	203	4,500	SH		SOLE		4,500	0	0
Patrick Industries, Inc.	com	703343103	1,194	14,800	SH		SOLE		14,800	0	0
Patterson-Uti Energy, Inc.	com	703481101	1,058	125,200	SH		SOLE		125,200	0	0
Perficient Inc.	com	71375U101	1,060	8,200	SH		SOLE		8,200	0	0
Perion Network, Ltd.	com	M78673114	2,059	85,600	SH		SOLE		85,600	0	0
Preformed Line Prods Co.	com	740444104	453	7,000	SH		SOLE		7,000	0	0
RF Industries Ltd.	com	749552105	520	65,000	SH		SOLE		65,000	0	0
RPC, Inc.	com	749660106	860	189,400	SH		SOLE		189,400	0	0
Radnet, Inc.	com	750491102	1,614	53,600	SH		SOLE		53,600	0	0
Rapid7, Inc.	com	753422104	2,717	23,090	SH		SOLE		12,930	0	10,160
Resmed Inc.	com	761152107	378	1,450	SH		SOLE		0	0	1,450
Resources Connection, Inc.	com	76122q105	1,905	106,800	SH		SOLE		106,800	0	0
Revolve Group, Inc.	com	76156B107	353	6,300	SH		SOLE		6,300	0	0
SP Plus Corporation	com	78469C103	1,061	37,600	SH		SOLE		37,600	0	0
Scansource, Inc.	com	806037107	1,417	40,400	SH		SOLE		40,400	0	0
Sea Ltd	com	81141R100	8,769	39,200	SH		SOLE		39,200	0	0
SeaWorld Entertainment Inc.	com	81282v100	1,976	30,460	SH		SOLE		11,020	0	19,440
Shopify, Inc.	com	82509L107	3,581	2,600	SH		SOLE		2,600	0	0
Shutterstock, Inc.	com	825690100	8,151	73,515	SH		SOLE		49,008	0	24,507
Shyft Group, Inc.	com	825698103	1,346	27,400	SH		SOLE		27,400	0	0
Skyline Champion Corporation	com	830830105	537	6,800	SH		SOLE		6,800	0	0
Smart Global Hldgs, Inc.	com	G8232Y101	2,158	30,400	SH		SOLE		30,400	0	0
Sterling Construction Co., Inc	com	859241101	1,786	67,900	SH		SOLE		67,900	0	0
Stewart Information Services	com	860372101	367	4,600	SH		SOLE		4,600	0	0
Stride, Inc.	com	86333M108	373	11,200	SH		SOLE		11,200	0	0
Summit Materials, Inc.	com	86614U100	389	9,700	SH		SOLE		9,700	0	0
Synaptics, Inc.	com	87157D109	14,945	51,620	SH		SOLE		39,340	0	12,280
Techtarget, Inc.	com	87874R100	325	3,400	SH		SOLE		3,400	0	0
Tempur Sealy International, In	com	88023U101	1,880	39,983	SH		SOLE		39,713	0	270
Teradata Corp	com	88076W103	1,039	24,460	SH		SOLE		22,300	0	2,160
The Travelers Co., Inc.	com	89417E109	347	2,218	SH		SOLE		0	0	2,218
Tilly's, Inc.	com	886885102	1,123	69,700	SH		SOLE		69,700	0	0
Titan Machinery, Inc.	com	88830R101	1,331	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	1,190	8,810	SH		SOLE		1,080	0	7,730
Tri Pointe Homes, Inc.	com	87265H109	237	8,500	SH		SOLE		8,500	0	0
UFP Industries, Inc.	com	90278Q108	313	3,400	SH		SOLE		3,400	0	0
Ultra Clean Holdings	com	90385V107	8,124	141,630	SH		SOLE		124,860	0	16,770
Univar Solutions, Inc.	com	91336L107	292	10,300	SH		SOLE		10,300	0	0
Upwork, Inc.	com	91688F104	752	22,000	SH		SOLE		22,000	0	0
Varex Imaging Corp.	com	92214X106	3,079	97,600	SH		SOLE		97,600	0	0
Veritiv Corp.	com	923454102	5,178	42,242	SH		SOLE		42,242	0	0
Verizon Communications	com	92343V104	220	4,242	SH		SOLE		0	0	4,242
Vishay Precision Group	com	92835K103	1,403	37,800	SH		SOLE		37,800	0	0
Vocera Communications, Inc.	com	92857F107	3,976	61,326	SH		SOLE		61,326	0	0
Wal Mart Stores Inc.	com	931142103	229	1,581	SH		SOLE		0	0	1,581
Xenacare Hldgs, Inc.	com	98401A106	0	140,000	SH		SOLE		0	0	140,000
ZipRecruiter, Inc.	com	98980B103	237	9,500	SH		SOLE		9,500	0	0
Zumiez Inc.	com	989817101	2,462	51,300	SH		SOLE		51,300	0	0
a.k.a. Brands Hldg Corp.	com	00152K101	1,397	151,000	SH		SOLE		151,000	0	0
SPDR S&P 500 ETF Trust	com	78462F103	1,709	3,599	SH		SOLE		0	0	3,599

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