OBERWEIS ASSET MANAGEMENT INC/ Q3 2021 Filing

Filed November 15, 2021

Portfolio Value

$482.9M

Holdings

162

Report Date

Q3 2021

Filing Type

13F-HR

All Holdings (162 positions)

#	Stock	Shares	Value	% Portfolio
1	CSTMConstellium NV Cl A	6,497,497	$122.0M	25.27%
2	DAVAEndava Plc Ads	592,021	$80.4M	16.65%
3	SESea Ltd	91,600	$29.2M	6.05%
4	SYNASynaptics, Inc.	57,120	$10.3M	2.13%
5	—ChannelAdvisor Corporation	389,930	$9.8M	2.04%
6	SSTKShutterstock, Inc.	74,323	$8.4M	1.74%
7	GLBEGlobal-e Online Ltd.	107,400	$7.7M	1.60%
8	ORGOOrganogenesis Hlgs, Inc.	509,058	$7.2M	1.50%
9	SHOPShopify, Inc.	5,340	$7.2M	1.50%
10	ACLSAxcelis Technologies	153,870	$7.2M	1.50%
11	ATECAlphatec Hldgs Inc.	580,030	$7.1M	1.46%
12	DECKDeckers Outdoor Corp.	19,230	$6.9M	1.43%
13	CROXCrocs, Inc.	47,970	$6.9M	1.43%
14	INMDInmode Ltd.	40,090	$6.4M	1.32%
15	GU9Guess, Inc	255,367	$5.4M	1.11%
16	CDNSCadence Design System, Inc.	33,900	$5.1M	1.06%
17	MBUUMalibu Boats, Inc.	54,750	$3.8M	0.79%
18	UCTTUltra Clean Holdings	89,480	$3.8M	0.79%
19	VRTVEURVeritiv Corp.	41,222	$3.7M	0.76%
20	CDNACareDx, Inc.	47,850	$3.0M	0.63%
21	MODNEURModel N, Inc.	90,140	$3.0M	0.63%
22	BOOTBoot Barn Hldgs, Inc.	32,300	$2.9M	0.59%
23	HALOHalozyme Therapeutics, Inc.	69,980	$2.8M	0.59%
24	ACHCAcadia Healthcare Co., Inc.	43,695	$2.8M	0.58%
25	ANGOAngiodynamics, Inc.	106,400	$2.8M	0.57%
26	AVNWAviat Networks, Inc.	81,607	$2.7M	0.56%
27	RRNRed Robin Gourmet Burger	112,800	$2.6M	0.54%
28	BLDRBuilders Firstsource	49,080	$2.5M	0.53%
29	DOOREURMasonite Intl Corp.	21,925	$2.3M	0.48%
30	AOSLAlpha & Omega Semiconductor	74,000	$2.3M	0.48%
31	AMRCAmeresco, Inc.	37,308	$2.2M	0.45%
32	ZM3Zumiez Inc.	51,300	$2.0M	0.42%
33	CLFDClearfield, Inc.	44,900	$2.0M	0.41%
34	VCRAUSDVocera Communications, Inc.	43,226	$2.0M	0.41%
35	—Entravision Communications	276,400	$2.0M	0.41%
36	ARNC1EURArconic Corporation	60,400	$1.9M	0.39%
37	TPDTempur Sealy International, In	38,777	$1.8M	0.37%
38	RPDRapid7, Inc.	15,910	$1.8M	0.37%
39	MHOM/I Homes, Inc.	30,900	$1.8M	0.37%
40	CSTLCastle Biosciences, Inc.	26,260	$1.7M	0.36%
41	IIIInformation Svcs Group, Inc.	235,000	$1.7M	0.35%
42	MXLMaxlinear, Inc. Class A	34,200	$1.7M	0.35%
43	CAMTCamtek, Ltd.	40,980	$1.7M	0.34%
44	XXYCross Country Healthcare, Inc.	77,900	$1.7M	0.34%
45	PRKSSeaWorld Entertainment Inc.	29,560	$1.6M	0.34%
46	FLLFull House Resorts, Inc.	152,543	$1.6M	0.34%
47	VREXVarex Imaging Corp.	57,200	$1.6M	0.33%
48	RGPResources Connection, Inc.	100,900	$1.6M	0.33%
49	AEHRAehr Test Systems	115,300	$1.6M	0.33%
50	RDNTRadnet, Inc.	53,600	$1.6M	0.33%
51	HSIHeidrick & Struggles	34,800	$1.6M	0.32%
52	SPYSPDR S&P 500 ETF Trust	3,587	$1.5M	0.32%
53	G2CEveri Hldgs, Inc.	63,300	$1.5M	0.32%
54	MOVMovado Group, Inc.	48,200	$1.5M	0.31%
55	MCRIMonarch Casino & Resort, Inc.	22,500	$1.5M	0.31%
56	JOUTJohnson Outdoors, Inc.	14,100	$1.5M	0.31%
57	STRLSterling Construction Co., Inc	65,300	$1.5M	0.31%
58	CVGICommercial Vehicle Group	155,500	$1.5M	0.30%
59	UPWKUpwork, Inc.	32,220	$1.5M	0.30%
60	CTSCTS Corp.	46,200	$1.4M	0.30%
61	ICFIICF International, Inc.	15,600	$1.4M	0.29%
62	PENGSmart Global Hldgs, Inc.	30,400	$1.4M	0.28%
63	VPGVishay Precision Group	37,800	$1.3M	0.27%
64	HSTMHealthstream Inc.	45,800	$1.3M	0.27%
65	LELands' End, Inc.	54,700	$1.3M	0.27%
66	MBWMMercantile Bank Corp.	39,828	$1.3M	0.26%
67	—EnPro Industries, Inc.	14,200	$1.2M	0.26%
68	EXTRExtreme Networks, Inc.	123,800	$1.2M	0.25%
69	SCSCScansource, Inc.	35,000	$1.2M	0.25%
70	BJBJs Wholesale Club Holdings, I	22,080	$1.2M	0.25%
71	NOTVInotiv, Inc.	40,600	$1.2M	0.25%
72	DZSIQDZS, Inc.	96,800	$1.2M	0.25%
73	PRFTUSDPerficient Inc.	10,100	$1.2M	0.24%
74	TBITrueBlue, Inc.	42,300	$1.1M	0.24%
75	PATKPatrick Industries, Inc.	13,600	$1.1M	0.23%
76	PTENPatterson-Uti Energy, Inc.	125,200	$1.1M	0.23%
77	DVAXDynavax Technologies Corp.	58,000	$1.1M	0.23%
78	—Lifetime Brands, Inc.	60,400	$1.1M	0.23%
79	SSUPSuperior Industries Intl. Inc.	152,498	$1.1M	0.22%
80	ALNTAllied Motion Technologies	34,100	$1.1M	0.22%
81	AAPLApple, Inc.	7,455	$1.1M	0.22%
82	HCKTHackett Group, Inc.	53,500	$1.1M	0.22%
83	ROFKForce, Inc.	17,500	$1.0M	0.22%
84	SHYFShyft Group, Inc.	27,400	$1.0M	0.22%
85	SPUSDSP Plus Corporation	33,700	$1.0M	0.21%
86	—Houghton Mifflin Harcourt Comp	76,000	$1.0M	0.21%
87	LOCOEl Pollo Loco Hldgs, Inc.	55,500	$938K	0.19%
88	FLXSFlexsteel Inds, Inc.	30,000	$926K	0.19%
89	RESRPC, Inc.	189,400	$920K	0.19%
90	OOMAOOMA Inc.	49,300	$917K	0.19%
91	COHUCohu, Inc.	28,576	$913K	0.19%
92	TREXTrex Company, Inc.	8,870	$904K	0.19%
93	3TYTitan Machinery, Inc.	34,300	$889K	0.18%
94	FFWMFirst Foundation Inc.	33,500	$881K	0.18%
95	CERSCerus Corp.	143,100	$871K	0.18%
96	EIGEmployers Holdings, Inc.	22,000	$869K	0.18%
97	MSFTMicrosoft Corp.	3,055	$861K	0.18%
98	—Cyberoptics Corp.	24,200	$861K	0.18%
99	—Antares Pharma, Inc.	225,900	$822K	0.17%
100	ABT2EURAbsolute Software Corp.	74,600	$820K	0.17%

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