Oberweis Asset Management 13FHR Quarterly holdings report by institutional manager | SEC 15 Nov 21

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
Absolute Software Corp.	com	00386B109	820	74,600	SH		SOLE		74,600	0	0
Acadia Healthcare Co., Inc.	com	00404A109	2,787	43,695	SH		SOLE		26,010	0	17,685
Adtran, Inc.	com	00738A106	818	43,600	SH		SOLE		43,600	0	0
Aehr Test Systems	com	00760J108	1,574	115,300	SH		SOLE		115,300	0	0
Alibaba Group Holding Ltd ADR	com	01609W102	221	1,490	SH		SOLE		130	0	1,360
Allied Motion Technologies	com	019330109	1,067	34,100	SH		SOLE		34,100	0	0
Alpha & Omega Semiconductor	com	G6331P104	2,321	74,000	SH		SOLE		74,000	0	0
Alphabet, Inc. Cl C	com	02079k107	267	100	SH		SOLE		0	0	100
Alphatec Hldgs Inc.	com	02081G201	7,071	580,030	SH		SOLE		456,820	0	123,210
Amazon.com	com	023135106	329	100	SH		SOLE		0	0	100
Ameresco, Inc.	com	02361E108	2,180	37,308	SH		SOLE		37,308	0	0
American Power Corp	com	02906T107	0	10,000	SH		SOLE		0	0	10,000
Amgen, Inc.	com	031162100	318	1,497	SH		SOLE		0	0	1,497
Amphastar Pharmaceuticals, Inc	com	03209R103	202	10,600	SH		SOLE		10,600	0	0
Amtech Systems, Inc.	com	032332504	772	67,500	SH		SOLE		67,500	0	0
Angiodynamics, Inc.	com	03475v101	2,760	106,400	SH		SOLE		106,400	0	0
Antares Pharma, Inc.	com	036642106	822	225,900	SH		SOLE		225,900	0	0
Apple, Inc.	com	037833100	1,055	7,455	SH		SOLE		240	0	7,215
Arconic Corporation	com	03966V107	1,905	60,400	SH		SOLE		38,050	0	22,350
Avatar Ventures	com	05350B100	0	10,000	SH		SOLE		0	0	10,000
Aviat Networks, Inc.	com	05366Y201	2,682	81,607	SH		SOLE		81,607	0	0
Avid Technology, Inc.	com	05367P100	570	19,700	SH		SOLE		19,700	0	0
Axcelis Technologies	com	054540208	7,237	153,870	SH		SOLE		129,980	0	23,890
BJs Wholesale Club Holdings, I	com	05550J101	1,213	22,080	SH		SOLE		6,310	0	15,770
BRP Group, Inc.	com	05589G102	213	6,400	SH		SOLE		6,400	0	0
Beacon Roofing Supply	com	073685109	272	5,700	SH		SOLE		5,700	0	0
Belden, Inc.	com	077454106	361	6,200	SH		SOLE		6,200	0	0
Boot Barn Hldgs, Inc.	com	099406100	2,871	32,300	SH		SOLE		32,300	0	0
Builders Firstsource	com	12008R107	2,539	49,080	SH		SOLE		29,810	0	19,270
CTS Corp.	com	126501105	1,428	46,200	SH		SOLE		46,200	0	0
Cadence Design System, Inc.	com	127387108	5,134	33,900	SH		SOLE		33,900	0	0
Camtek, Ltd.	com	M20791105	1,660	40,980	SH		SOLE		40,980	0	0
CarGurus, Inc.	com	141788109	468	14,900	SH		SOLE		11,300	0	3,600
CareDx, Inc.	com	14167L103	3,032	47,850	SH		SOLE		32,570	0	15,280
Castle Biosciences, Inc.	com	14843C105	1,746	26,260	SH		SOLE		26,260	0	0
Central Garden & Pet Co.	com	153527106	235	4,900	SH		SOLE		4,900	0	0
Cerus Corp.	com	157085101	871	143,100	SH		SOLE		143,100	0	0
ChannelAdvisor Corporation	com	159179100	9,838	389,930	SH		SOLE		295,660	0	94,270
Clean Harbors, Inc.	com	184496107	301	2,900	SH		SOLE		2,900	0	0
Clearfield, Inc.	com	18482P103	1,982	44,900	SH		SOLE		44,900	0	0
Cohu, Inc.	com	192576106	913	28,576	SH		SOLE		28,576	0	0
Commercial Vehicle Group	com	202608105	1,471	155,500	SH		SOLE		155,500	0	0
Commvault Systems, Inc.	com	204166102	286	3,800	SH		SOLE		3,800	0	0
Constellium NV Cl A	com	F21107101	122,023	6,497,497	SH		SOLE		4,840,339	0	1,657,158
Crocs, Inc.	com	227046109	6,883	47,970	SH		SOLE		40,840	0	7,130
Cross Country Healthcare, Inc.	com	227483104	1,655	77,900	SH		SOLE		77,900	0	0
Cyberoptics Corp.	com	232517102	861	24,200	SH		SOLE		24,200	0	0
DZS, Inc.	com	268211109	1,187	96,800	SH		SOLE		96,800	0	0
Dada Nexus Limited	com	23344D108	347	17,300	SH		SOLE		17,300	0	0
Deckers Outdoor Corp.	com	243537107	6,927	19,230	SH		SOLE		13,680	0	5,550
Dynavax Technologies Corp.	com	268158201	1,114	58,000	SH		SOLE		58,000	0	0
El Pollo Loco Hldgs, Inc.	com	268603107	938	55,500	SH		SOLE		55,500	0	0
Employers Holdings, Inc.	com	292218104	869	22,000	SH		SOLE		22,000	0	0
EnPro Industries, Inc.	com	29355x107	1,237	14,200	SH		SOLE		14,200	0	0
Endava Plc Ads	com	29260V105	80,426	592,021	SH		SOLE		443,872	0	148,149
Entravision Communications	com	29382r107	1,962	276,400	SH		SOLE		276,400	0	0
Everi Hldgs, Inc.	com	30034T103	1,531	63,300	SH		SOLE		63,300	0	0
Extreme Networks, Inc.	com	30226D106	1,219	123,800	SH		SOLE		123,800	0	0
First Foundation Inc.	com	32026V104	881	33,500	SH		SOLE		33,500	0	0
Flexsteel Inds, Inc.	com	339382103	926	30,000	SH		SOLE		30,000	0	0
Full House Resorts, Inc.	com	359678109	1,618	152,543	SH		SOLE		152,543	0	0
Global-e Online Ltd.	com	M5216V106	7,711	107,400	SH		SOLE		107,400	0	0
Golden Nugget Online Gaming, I	com	38113L107	521	30,000	SH		SOLE		30,000	0	0
Guess, Inc	com	401617105	5,365	255,367	SH		SOLE		216,666	0	38,701
Hackett Group, Inc.	com	404609109	1,050	53,500	SH		SOLE		53,500	0	0
Halozyme Therapeutics, Inc.	com	40637H109	2,847	69,980	SH		SOLE		46,310	0	23,670
Headhunter Group Plc Spon ADR	com	42207L106	332	6,800	SH		SOLE		6,800	0	0
Healthstream Inc.	com	42222N103	1,309	45,800	SH		SOLE		45,800	0	0
Heidrick & Struggles	com	422819102	1,553	34,800	SH		SOLE		34,800	0	0
Helmerich & Payne	com	423452101	773	28,195	SH		SOLE		9,560	0	18,635
Heska Corp Com Restrc New	com	42805E306	259	1,000	SH		SOLE		1,000	0	0
Hooker Furniture Corp	com	439038100	769	28,500	SH		SOLE		28,500	0	0
Houghton Mifflin Harcourt Comp	com	44157R109	1,021	76,000	SH		SOLE		76,000	0	0
ICF International, Inc.	com	44925C103	1,393	15,600	SH		SOLE		15,600	0	0
II-VI Inc.	com	902104108	404	6,800	SH		SOLE		0	0	6,800
Information Svcs Group, Inc.	com	45675Y104	1,687	235,000	SH		SOLE		235,000	0	0
Inmode Ltd.	com	M5425M103	6,392	40,090	SH		SOLE		27,780	0	12,310
Inotiv, Inc.	com	45783Q100	1,187	40,600	SH		SOLE		40,600	0	0
Intel Corporation	com	458140100	295	5,540	SH		SOLE		0	0	5,540
Inter Parfums	com	458334109	307	4,100	SH		SOLE		4,100	0	0
JP Morgan Chase & Company Inc.	com	46625H100	700	4,275	SH		SOLE		140	0	4,135
Johnson & Johnson	com	478160104	448	2,772	SH		SOLE		0	0	2,772
Johnson Outdoors, Inc.	com	479167108	1,492	14,100	SH		SOLE		14,100	0	0
KForce, Inc.	com	493732101	1,044	17,500	SH		SOLE		17,500	0	0
Kennametal, Inc.	com	489170100	308	9,000	SH		SOLE		9,000	0	0
Korn Ferry	com	500643200	347	4,800	SH		SOLE		4,800	0	0
Lands' End, Inc.	com	51509F105	1,288	54,700	SH		SOLE		54,700	0	0
Lifetime Brands, Inc.	com	53222q103	1,099	60,400	SH		SOLE		60,400	0	0
M/I Homes, Inc.	com	55305B101	1,786	30,900	SH		SOLE		30,900	0	0
Macom Technology Solutions	com	55405Y100	240	3,700	SH		SOLE		3,700	0	0
Magnolia Oil & Gas Corp.	com	559663109	213	12,000	SH		SOLE		12,000	0	0
Malibu Boats, Inc.	com	56117J100	3,831	54,750	SH		SOLE		40,220	0	14,530
Masonite Intl Corp.	com	575385109	2,327	21,925	SH		SOLE		17,080	0	4,845
Mastercard, Inc.	com	57636Q104	450	1,294	SH		SOLE		0	0	1,294
Materion Corp.	com	576690101	268	3,900	SH		SOLE		3,900	0	0
Maxlinear, Inc. Class A	com	57776J100	1,684	34,200	SH		SOLE		10,350	0	23,850
McDonald's Corporation	com	580135101	201	833	SH		SOLE		0	0	833
Mercantile Bank Corp.	com	587376104	1,276	39,828	SH		SOLE		21,900	0	17,928
Microsoft Corp.	com	594918104	861	3,055	SH		SOLE		0	0	3,055
Model N, Inc.	com	607525102	3,020	90,140	SH		SOLE		66,210	0	23,930
Monarch Casino & Resort, Inc.	com	609027107	1,507	22,500	SH		SOLE		22,500	0	0
Movado Group, Inc.	com	624580106	1,518	48,200	SH		SOLE		48,200	0	0
NOV, Inc.	com	62955J103	176	13,400	SH		SOLE		13,400	0	0
Newmont Mining	com	651639106	336	6,192	SH		SOLE		400	0	5,792
OOMA Inc.	com	683416101	917	49,300	SH		SOLE		49,300	0	0
Option Care Health Inc.	com	68404L201	235	9,700	SH		SOLE		9,700	0	0
Organogenesis Hlgs, Inc.	com	68621F102	7,249	509,058	SH		SOLE		401,008	0	108,050
PDC Energy, Inc.	com	69327R101	209	4,400	SH		SOLE		4,400	0	0
Patrick Industries, Inc.	com	703343103	1,133	13,600	SH		SOLE		13,600	0	0
Patterson-Uti Energy, Inc.	com	703481101	1,127	125,200	SH		SOLE		125,200	0	0
Perficient Inc.	com	71375U101	1,169	10,100	SH		SOLE		10,100	0	0
Preformed Line Prods Co.	com	740444104	455	7,000	SH		SOLE		7,000	0	0
RF Industries Ltd.	com	749552105	530	65,000	SH		SOLE		65,000	0	0
RPC, Inc.	com	749660106	920	189,400	SH		SOLE		189,400	0	0
Radnet, Inc.	com	750491102	1,571	53,600	SH		SOLE		53,600	0	0
Rapid7, Inc.	com	753422104	1,798	15,910	SH		SOLE		4,650	0	11,260
Realogy Hldgs Corp.	com	75605Y106	288	16,400	SH		SOLE		16,400	0	0
Red Robin Gourmet Burger	com	75689M101	2,601	112,800	SH		SOLE		112,800	0	0
Resmed Inc.	com	761152107	382	1,450	SH		SOLE		0	0	1,450
Resources Connection, Inc.	com	76122q105	1,592	100,900	SH		SOLE		100,900	0	0
Revolve Group, Inc.	com	76156B107	303	4,900	SH		SOLE		4,900	0	0
SP Plus Corporation	com	78469C103	1,034	33,700	SH		SOLE		33,700	0	0
Scansource, Inc.	com	806037107	1,218	35,000	SH		SOLE		35,000	0	0
Sea Ltd	com	81141R100	29,196	91,600	SH		SOLE		91,600	0	0
SeaWorld Entertainment Inc.	com	81282v100	1,635	29,560	SH		SOLE		10,320	0	19,240
Select Medical Hldgs. Corp	com	81619Q105	293	8,100	SH		SOLE		8,100	0	0
Shopify, Inc.	com	82509L107	7,240	5,340	SH		SOLE		5,340	0	0
Shutterstock, Inc.	com	825690100	8,422	74,323	SH		SOLE		49,003	0	25,320
Shyft Group, Inc.	com	825698103	1,041	27,400	SH		SOLE		27,400	0	0
Skyline Champion Corporation	com	830830105	336	5,600	SH		SOLE		5,600	0	0
Smart Global Hldgs, Inc.	com	G8232Y101	1,353	30,400	SH		SOLE		30,400	0	0
Sterling Construction Co., Inc	com	859241101	1,480	65,300	SH		SOLE		65,300	0	0
Stewart Information Services	com	860372101	278	4,400	SH		SOLE		4,400	0	0
Strattec Security Corp.	com	863111100	626	16,100	SH		SOLE		16,100	0	0
Stride, Inc.	com	86333M108	284	7,900	SH		SOLE		7,900	0	0
Summit Materials, Inc.	com	86614U100	297	9,300	SH		SOLE		9,300	0	0
Superior Industries Intl. Inc.	com	868168105	1,075	152,498	SH		SOLE		152,498	0	0
Synaptics, Inc.	com	87157D109	10,266	57,120	SH		SOLE		44,840	0	12,280
TTEC Hldgs, Inc.	com	89854H102	253	2,700	SH		SOLE		2,700	0	0
Techtarget, Inc.	com	87874R100	231	2,800	SH		SOLE		2,800	0	0
Tempur Sealy International, In	com	88023U101	1,800	38,777	SH		SOLE		38,507	0	270
Teradata Corp	com	88076W103	379	6,600	SH		SOLE		6,600	0	0
The Travelers Co., Inc.	com	89417E109	361	2,376	SH		SOLE		0	0	2,376
Titan Machinery, Inc.	com	88830R101	889	34,300	SH		SOLE		34,300	0	0
Titan Oil & Gas, Inc.	com	888309101	0	10,000	SH		SOLE		0	0	10,000
Travelzoo	com	89421Q205	661	57,000	SH		SOLE		57,000	0	0
Trex Company, Inc.	com	89531P105	904	8,870	SH		SOLE		1,080	0	7,790
TrueBlue, Inc.	com	89785X101	1,145	42,300	SH		SOLE		42,300	0	0
Tupperware Corp.	com	899896104	771	36,490	SH		SOLE		36,490	0	0
UFP Industries, Inc.	com	90278Q108	231	3,400	SH		SOLE		3,400	0	0
Ultra Clean Holdings	com	90385V107	3,812	89,480	SH		SOLE		86,370	0	3,110
Upwork, Inc.	com	91688F104	1,451	32,220	SH		SOLE		22,000	0	10,220
Varex Imaging Corp.	com	92214X106	1,613	57,200	SH		SOLE		57,200	0	0
Veritiv Corp.	com	923454102	3,692	41,222	SH		SOLE		41,222	0	0
Verizon Communications	com	92343V104	240	4,451	SH		SOLE		0	0	4,451
Vishay Precision Group	com	92835K103	1,314	37,800	SH		SOLE		37,800	0	0
Vocera Communications, Inc.	com	92857F107	1,978	43,226	SH		SOLE		43,226	0	0
Wal Mart Stores Inc.	com	931142103	239	1,711	SH		SOLE		0	0	1,711
Xenacare Hldgs, Inc.	com	98401A106	0	140,000	SH		SOLE		0	0	140,000
Zumiez Inc.	com	989817101	2,040	51,300	SH		SOLE		51,300	0	0
SPDR S&P 500 ETF Trust	com	78462F103	1,539	3,587	SH		SOLE		0	0	3,587

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