OBERWEIS ASSET MANAGEMENT INC/ Q1 2022 Filing

Filed May 16, 2022

Portfolio Value

$499.2B

Holdings

165

Report Date

Q1 2022

Filing Type

13F-HR

All Holdings (165 positions)

#StockSharesValue% PortfolioType
1
CSTMConstellium NV Cl A
5,547,097$99.8B20.00%
2
NVMINova Measuring Instruments
566,500$61.7B12.36%
3
DAVAEndava Plc Ads
414,787$55.2B11.05%
4
ACLSAxcelis Technologies
191,790$14.5B2.90%
5
LNTHLantheus Hldgs Inc.
206,260$11.4B2.29%
6
SYNASynaptics, Inc.
52,690$10.5B2.11%
7
MTRNMaterion Corp.
99,505$8.5B1.71%
8
CROXCrocs, Inc.
97,760$7.5B1.50%
9
DECKDeckers Outdoor Corp.
25,280$6.9B1.39%
10
UCTTUltra Clean Holdings
160,140$6.8B1.36%
11
VRTVEURVeritiv Corp.
49,942$6.7B1.34%
12
DDOGDatadog, Inc. Class A
37,200$5.6B1.13%
13
ANGOAngiodynamics, Inc.
240,270$5.2B1.04%
14
ATECAlphatec Hldgs Inc.
446,060$5.1B1.03%
15
ACHCAcadia Healthcare Co., Inc.
76,595$5.0B1.01%
16
BOOTBoot Barn Hldgs, Inc.
50,080$4.7B0.95%
17
HALOHalozyme Therapeutics, Inc.
107,450$4.3B0.86%
18
GU9Guess, Inc
190,531$4.2B0.83%
19
CDNSCadence Design System, Inc.
25,100$4.1B0.83%
20
AOSLAlpha & Omega Semiconductor
74,000$4.0B0.81%
21
AMRCAmeresco, Inc.
45,508$3.6B0.72%
22
D0ADada Nexus Limited
358,955$3.3B0.66%
23
SSTKShutterstock, Inc.
34,702$3.2B0.65%
24
MODNEURModel N, Inc.
119,360$3.2B0.64%
25
CLFDClearfield, Inc.
48,500$3.2B0.63%
26
FORRForrester Research, Inc.
53,900$3.0B0.61%
27
ChannelAdvisor Corporation
178,240$3.0B0.59%
28
PERIPerion Network, Ltd.
128,300$2.9B0.58%
29
RPDRapid7, Inc.
25,360$2.8B0.57%
30
BDCBelden, Inc.
48,026$2.7B0.53%
31
XXYCross Country Healthcare, Inc.
117,056$2.5B0.51%
32
MBUUMalibu Boats, Inc.
42,170$2.4B0.49%
33
G2CEveri Hldgs, Inc.
113,800$2.4B0.48%
34
AVNWAviat Networks, Inc.
73,207$2.3B0.45%
35
PRKSSeaWorld Entertainment Inc.
29,560$2.2B0.44%
36
ICFIICF International, Inc.
23,200$2.2B0.44%
37
MCRIMonarch Casino & Resort, Inc.
24,800$2.2B0.43%
38
MOVMovado Group, Inc.
55,200$2.2B0.43%
39
STRLSterling Construction Co., Inc
80,300$2.2B0.43%
40
MXLMaxlinear, Inc. Class A
35,600$2.1B0.42%
41
RGPResources Connection, Inc.
119,269$2.0B0.41%
42
RESRPC, Inc.
189,400$2.0B0.40%
43
EXTRExtreme Networks, Inc.
164,600$2.0B0.40%
44
FNKOFunko, Inc.
114,400$2.0B0.40%
45
HCKTHackett Group, Inc.
85,200$2.0B0.39%
46
PTENPatterson-Uti Energy, Inc.
125,200$1.9B0.39%
47
INMDInmode Ltd.
52,350$1.9B0.39%
48
PRFTUSDPerficient Inc.
17,200$1.9B0.38%
49
FCFranklin Covey Co.
41,400$1.9B0.38%
50
LOVELovesac Company
34,500$1.9B0.37%
51
EnPro Industries, Inc.
18,900$1.8B0.37%
52
FLLFull House Resorts, Inc.
190,543$1.8B0.37%
53
AEHRAehr Test Systems
178,200$1.8B0.36%
54
NOTVInotiv, Inc.
68,944$1.8B0.36%
55
PENGSmart Global Hldgs, Inc.
69,500$1.8B0.36%
56
SWCHFSierra Wireless, Inc.
99,489$1.8B0.36%
57
CAMTCamtek, Ltd.
57,980$1.8B0.35%
58
Cyberoptics Corp.
43,500$1.8B0.35%
59
CTSCTS Corp.
49,600$1.8B0.35%
60
Entravision Communications
270,100$1.7B0.35%
61
IIIInformation Svcs Group, Inc.
246,100$1.7B0.34%
62
DZSIQDZS, Inc.
119,800$1.7B0.33%
63
SPYSPDR S&P 500 ETF Trust
3,627$1.6B0.33%
64
PLABPhotronics, Inc.
95,000$1.6B0.32%
65
MHOM/I Homes, Inc.
35,500$1.6B0.32%
66
PIImpinj, Inc.
24,700$1.6B0.31%
67
BJBJs Wholesale Club Holdings, I
22,820$1.5B0.31%
68
SCSCScansource, Inc.
43,000$1.5B0.30%
69
CEVACeva Inc.
36,600$1.5B0.30%
70
BELFBBel Fuse, Inc.
82,900$1.5B0.30%
71
TBITrueBlue, Inc.
51,000$1.5B0.30%
72
Avid Technology, Inc.
41,900$1.5B0.29%
73
IMXIInternational Money Express, I
70,100$1.4B0.29%
74
SHYFShyft Group, Inc.
39,700$1.4B0.29%
75
BLDRBuilders Firstsource
21,960$1.4B0.28%
76
MBWMMercantile Bank Corp.
39,839$1.4B0.28%
77
Antares Pharma, Inc.
344,200$1.4B0.28%
78
PDDPinduoduo Inc.
35,000$1.4B0.28%
79
VPGVishay Precision Group
43,300$1.4B0.28%
80
TDCTeradata Corp
28,080$1.4B0.28%
81
RCKYRocky Brands, Inc.
31,900$1.3B0.27%
82
ACMRACM Research, Inc. Class A
64,000$1.3B0.27%
83
TWITitan Int'l Inc.
87,000$1.3B0.26%
84
ROFKForce, Inc.
17,200$1.3B0.25%
85
SPUSDSP Plus Corporation
40,200$1.3B0.25%
86
RDNTRadnet, Inc.
54,900$1.2B0.25%
87
ALNTAllied Motion Technologies
39,100$1.2B0.23%
88
TSMTaiwan Semiconductor
11,000$1.1B0.23%
89
DVAXDynavax Technologies Corp.
105,400$1.1B0.23%
90
EIGEmployers Holdings, Inc.
27,500$1.1B0.23%
91
3TYTitan Machinery, Inc.
39,500$1.1B0.22%
92
Amtech Systems, Inc.
110,700$1.1B0.22%
93
ADTNEURAdtran, Inc.
59,400$1.1B0.22%
94
JOUTJohnson Outdoors, Inc.
14,100$1.1B0.22%
95
CERSCerus Corp.
199,600$1.1B0.22%
96
ESTEEUREarthstone Energy Inc.
85,200$1.1B0.22%
97
YUMCYum China Hldgs, Inc.
25,500$1.1B0.21%
98
SKYSkyline Champion Corporation
19,040$1.0B0.21%
99
AAPLApple, Inc.
5,967$1.0B0.21%
100
ARLOArlo Technologies, Inc.
109,500$970.0M0.19%
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