OBERWEIS ASSET MANAGEMENT INC/ Q1 2020 Filing

Filed May 15, 2020

Portfolio Value

$181.2B

Holdings

172

Report Date

Q1 2020

Filing Type

13F-HR

All Holdings (172 positions)

#StockSharesValue% PortfolioType
1
Audio Codes ADR
1,174,438$28.1B15.48%
2
DAVAEndava Plc Ads
540,900$19.0B10.49%
3
EHTHEhealth, Inc.
51,651$7.3B4.01%
4
BABAAlibaba ADR
36,005$7.0B3.86%
5
IPHIINPHI Corp.
66,270$5.2B2.89%
6
TNDMTandem Diabetes Care, Inc.
67,630$4.4B2.40%
7
BANDBandwidth, Inc.
57,849$3.9B2.15%
8
PRDOPerdoceo Education Corp.
291,659$3.1B1.74%
9
CA8ACACI International, Inc.
13,415$2.8B1.56%
10
GDSGDS Holdings Ltd. ADR
45,761$2.7B1.46%
11
CSTLCastle Biosciences, Inc.
87,810$2.6B1.44%
12
TREXTrex Company, Inc.
29,405$2.4B1.30%
13
ADUSAddus Homecare Corp.
33,980$2.3B1.27%
14
DECKDeckers Outdoor Corp.
16,220$2.2B1.20%
15
ACLSAxcelis Technologies
116,730$2.1B1.18%
16
Bottomline Technologies
54,980$2.0B1.11%
17
TALTal Education Group ADR
36,000$1.9B1.06%
18
RUBIEURRubicon Project Inc
332,500$1.8B1.02%
19
JDJD.com ADR
45,250$1.8B1.01%
20
MODNEURModel N, Inc.
78,940$1.8B0.97%
21
MBUUMalibu Boats, Inc.
58,460$1.7B0.93%
22
EDUNew Oriental Education ADR
14,500$1.6B0.87%
23
OSPNOneSpan, Inc.
73,400$1.3B0.73%
24
INMDInmode Ltd.
60,670$1.3B0.72%
25
RPDRapid7, Inc.
29,780$1.3B0.71%
26
TCMDTactile Sys Technology, Inc.
29,800$1.2B0.66%
27
Limelight Networks, Inc.
207,300$1.2B0.65%
28
AMEDAmedisys Inc.
6,295$1.2B0.64%
29
Cabot Microelectronics Corp.
9,612$1.1B0.61%
30
LiqTech International, Inc
252,980$1.1B0.60%
31
Telaria, Inc.
166,800$1.0B0.55%
32
UPLDUpland Software, Inc.
37,035$993.0M0.55%
33
SPYSPDR S&P 500 ETF Trust
3,809$982.0M0.54%
34
GTLSChart Industries Inc.
33,780$979.0M0.54%
35
SCTLRecro Pharma, Inc.
119,500$976.0M0.54%
36
ENSGEnsign Group, Inc.
25,600$963.0M0.53%
37
MTZMastec, Inc.
29,340$960.0M0.53%
38
NTESNetease.Com, Inc. ADR
2,890$928.0M0.51%
39
COLLCollegium Pharmaceutical, Inc.
54,200$885.0M0.49%
40
FAROFaro Technologies, Inc.
19,600$872.0M0.48%
41
ATSG*Air Transport Services Group,
47,030$860.0M0.47%
42
FSSFederal Signal Corp.
31,410$857.0M0.47%
43
VNET21Vianet Group, Inc. - ADR
60,000$832.0M0.46%
44
MGRCMcGrath RentCorp
15,300$801.0M0.44%
45
EFSCEnterprise Finl Svcs
28,520$796.0M0.44%
46
CROXCrocs, Inc.
46,400$788.0M0.43%
47
CAMTCamtek, Ltd.
93,400$786.0M0.43%
48
UCTTUltra Clean Holdings
56,300$777.0M0.43%
49
Adesto Technologies Corp.
68,200$763.0M0.42%
50
NSSCNapco Sec Technologies, Inc.
49,637$753.0M0.42%
51
Spartan Motors, Inc.
57,700$745.0M0.41%
52
HURNHuron Consulting Group, Inc.
16,400$744.0M0.41%
53
ACMRACM Research, Inc. Class A
25,000$740.0M0.41%
54
Zix Corp.
165,370$713.0M0.39%
55
APPSDigital Turbine, Inc.
162,000$698.0M0.39%
56
AMRCAmeresco, Inc.
40,608$692.0M0.38%
57
CASHMeta Financial Group, Inc.
31,000$673.0M0.37%
58
CEVACeva Inc.
27,000$673.0M0.37%
59
ON1Old National Bancorp
49,615$654.0M0.36%
60
WSMWilliams-Sonoma, Inc.
15,310$651.0M0.36%
61
AAPLApple, Inc.
2,473$629.0M0.35%
62
HRTGHeritage Ins Hldgs, Inc.
58,713$629.0M0.35%
63
CRAICRA Int'l Inc.
18,800$628.0M0.35%
64
Cardtronics, Inc.
29,600$619.0M0.34%
65
NWPXNorthwest Pipe Co.
27,500$612.0M0.34%
66
PRFTUSDPerficient Inc.
22,500$610.0M0.34%
67
TFINTriumph Bancorp, Inc.
23,100$601.0M0.33%
68
SFNCSimmons First National Corp.
32,430$597.0M0.33%
69
CPFCentral Pacific Financial Corp
37,500$596.0M0.33%
70
CHRSCoherus Biosciences, Inc.
36,100$586.0M0.32%
71
EVEREverQuote, Inc.
22,300$585.0M0.32%
72
ChannelAdvisor Corporation
80,000$581.0M0.32%
73
DGIIDigi International I
60,400$576.0M0.32%
74
MSFTMicrosoft Corp.
3,640$574.0M0.32%
75
SFStifel Financial Corp.
13,870$573.0M0.32%
76
MRCYMercury Systems, Inc.
8,015$572.0M0.32%
77
Ryman Hospitality Pptys. Inc.
15,350$550.0M0.30%
78
ZM3Zumiez Inc.
31,000$537.0M0.30%
79
Arco Platform Ltd. Com Cl A
12,700$537.0M0.30%
80
OSKOshkosh Corp.
7,940$511.0M0.28%
81
SAICScience Applications Int'l. Co
6,850$511.0M0.28%
82
TN1Tennant Company
8,800$510.0M0.28%
83
NJRNew Jersey Res Corp.
14,930$507.0M0.28%
84
BioDelivery Sciences Internati
133,900$507.0M0.28%
85
PS1Computer Programs & Systems
22,700$505.0M0.28%
86
SKYSkyline Champion Corp
31,720$497.0M0.27%
87
CYBRCyberArk Software
5,800$496.0M0.27%
88
GTNGray Television, Inc.
45,930$493.0M0.27%
89
Physicians Realty Trust
35,331$493.0M0.27%
90
MYRGMYR Group, Inc.
18,800$492.0M0.27%
91
SWXSouthwest Gas Corp.
7,030$489.0M0.27%
92
COSCNO Financial Group, Inc.
39,030$484.0M0.27%
93
NHCNational Healthcare
6,700$481.0M0.27%
94
VSHVishay Intertechnology
32,950$475.0M0.26%
95
Antares Pharma, Inc.
200,600$473.0M0.26%
96
PORPortland General Electric Co.
9,750$467.0M0.26%
97
GFFGriffon Corp.
36,800$466.0M0.26%
98
HLITHarmonic, Inc.
80,600$464.0M0.26%
99
DQDaqo New Energy Corp.
8,000$463.0M0.26%
100
FULTFulton Financial Corp.
40,100$461.0M0.25%
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