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OBERWEIS ASSET MANAGEMENT INC/ 13F 持仓明细(2026-03-31) · 小隐寺数据中心
OBERWEIS ASSET MANAGEMENT INC/
报告期 2026-03-31 · CIK 0000937886
持仓数
180
前50大市值合计
$2.09B
报告期
2026-03-31
当前持仓
调仓
组合演变
前 6 大持仓 + 其他 逐季市值($B) · 点图或下方季度看该季调仓
看某季调仓:
26Q1
25Q4
25Q3
25Q2
25Q1
24Q4
24Q3
24Q2
24Q1
23Q4
23Q3
23Q2
23Q1
22Q4
22Q3
22Q2
22Q1
21Q4
21Q3
22Q1 调仓
2021-12-31 → 2022-03-31 · 共 150 项
建仓 28
增持 81
减持 18
清仓 23
方向
标的
Δ市值
现股数(环比)
增持
—
Nova Measuring Instruments
-$16.0M
566,500
+7%
增持
DAVA
Endava Plc Ads
-$13.5M
414,787
+1%
清仓
SE
Sea Ltd
-$8.8M
0
-100%
调仓由相邻两季 13F 持仓相减推导(非逐笔成交);方向按股数增减,Δ市值受股价波动影响、符号可与方向相反;13F 申报滞后最长 45 天。
增持
LNTH
Lantheus Hldgs Inc.
+$8.3M
206,260
+93%
减持
—
ChannelAdvisor Corporation
-$6.5M
178,240
-53%
减持
SSTK
Shutterstock, Inc.
-$4.9M
34,702
-53%
增持
SYNA
Synaptics, Inc.
-$4.4M
52,690
+2%
清仓
—
Vocera Communications, Inc.
-$4.0M
0
-100%
减持
—
Inmode Ltd.
-$3.7M
52,350
-34%
清仓
SHOP
Shopify, Inc.
-$3.6M
0
-100%
清仓
VREX
Varex Imaging Corp.
-$3.1M
0
-100%
增持
ACLS
Axcelis Technologies
+$2.9M
191,790
+24%
减持
BLDR
Builders Firstsource
-$2.9M
21,960
-56%
增持
—
Dada Nexus Limited
+$2.8M
358,955
+806%
减持
CDNS
Cadence Design System, Inc.
-$2.7M
25,100
-32%
减持
ATEC
Alphatec Hldgs Inc.
-$2.6M
446,060
-34%
清仓
—
Masonite Intl Corp.
-$2.6M
0
-100%
清仓
ZUMZ
Zumiez Inc.
-$2.5M
0
-100%
增持
ACHC
Acadia Healthcare Co., Inc.
+$2.2M
76,595
+63%
增持
MTRN
Materion Corp.
+$2.1M
99,505
+43%
清仓
—
Houghton Mifflin Harcourt Comp
-$2.0M
0
-100%
减持
DDOG
Datadog, Inc. Class A
-$2.0M
37,200
-13%
清仓
—
Arconic Corporation
-$1.9M
0
-100%
清仓
SGI
Tempur Sealy International, In
-$1.9M
0
-100%
建仓
FC
Franklin Covey Co.
+$1.9M
41,400
建仓
LOVE
Lovesac Company
+$1.9M
34,500
清仓
INVE
Identiv Inc.
-$1.8M
0
-100%
建仓
—
Sierra Wireless, Inc.
+$1.8M
99,489
清仓
HSTM
Healthstream Inc.
-$1.8M
0
-100%
清仓
—
Heidrick & Struggles
-$1.6M
0
-100%
建仓
PLAB
Photronics, Inc.
+$1.6M
95,000
建仓
PI
Impinj, Inc.
+$1.6M
24,700
增持
—
Veritiv Corp.
+$1.5M
49,942
+18%
增持
—
Constellium NV Cl A
+$1.5M
5,547,097
+1%
建仓
CEVA
Ceva Inc.
+$1.5M
36,600
建仓
BELFB
Bel Fuse, Inc.
+$1.5M
82,900
建仓
TBI
TrueBlue, Inc.
+$1.5M
51,000
建仓
PDD
Pinduoduo Inc.
+$1.4M
35,000
增持
UCTT
Ultra Clean Holdings
-$1.3M
160,140
+13%
建仓
RCKY
Rocky Brands, Inc.
+$1.3M
31,900
建仓
ACMR
ACM Research, Inc. Class A
+$1.3M
64,000
增持
FORR
Forrester Research, Inc.
+$1.3M
53,900
+81%
建仓
TWI
Titan Int'l Inc.
+$1.3M
87,000
减持
—
a.k.a. Brands Hldg Corp.
-$1.2M
37,040
-75%
建仓
TSM
Taiwan Semiconductor
+$1.1M
11,000
清仓
CSTL
Castle Biosciences, Inc.
-$1.1M
0
-100%
清仓
TLYS
Tilly's, Inc.
-$1.1M
0
-100%
清仓
COHU
Cohu, Inc.
-$1.1M
0
-100%
增持
CROX
Crocs, Inc.
+$1.1M
97,760
+96%
建仓
YUMC
Yum China Hldgs, Inc.
+$1.1M
25,500
增持
BOOT
Boot Barn Hldgs, Inc.
+$994.0K
50,080
+64%
建仓
ARLO
Arlo Technologies, Inc.
+$970.0K
109,500
减持
PATK
Patrick Industries, Inc.
-$874.0K
5,300
-64%
增持
—
Perficient Inc.
+$834.0K
17,200
+110%
增持
—
Perion Network, Ltd.
+$826.0K
128,300
+50%
增持
NOTVQ
Inotiv, Inc.
+$818.0K
68,944
+194%
清仓
FLXS
Flexsteel Inds, Inc.
-$806.0K
0
-100%
增持
AMRC
Ameresco, Inc.
+$800.0K
45,508
+31%
增持
HCKT
Hackett Group, Inc.
+$785.0K
85,200
+48%
清仓
UPWK
Upwork, Inc.
-$752.0K
0
-100%
建仓
UTI
Universal Technical Inst, Inc.
+$720.0K
81,300
增持
DECK
Deckers Outdoor Corp.
-$702.0K
25,280
+21%
减持
—
Guess, Inc
-$686.0K
190,531
-7%
增持
FNKO
Funko, Inc.
+$636.0K
114,400
+61%
减持
TREX
Trex Company, Inc.
-$631.0K
8,560
-3%
增持
MHO
M/I Homes, Inc.
-$596.0K
35,500
+2%
增持
—
Model N, Inc.
+$563.0K
119,360
+35%
建仓
EVH
Evolent Health, Inc.
+$552.0K
17,100
增持
MXL
Maxlinear, Inc. Class A
-$550.0K
35,600
+2%
增持
—
Antares Pharma, Inc.
+$514.0K
344,200
+37%
增持
ICFI
ICF International, Inc.
+$512.0K
23,200
+42%
增持
EXTR
Extreme Networks, Inc.
-$508.0K
164,600
+3%
增持
SKY
Skyline Champion Corporation
+$508.0K
19,040
+180%
增持
—
Camtek, Ltd.
-$461.0K
57,980
+20%
增持
—
Angiodynamics, Inc.
-$457.0K
240,270
+18%
建仓
FELE
Franklin Electric
+$424.0K
5,100
增持
AEHR
Aehr Test Systems
-$409.0K
178,200
+94%
建仓
ABM
ABM Industries, Inc.
+$391.0K
8,500
清仓
—
Summit Materials, Inc.
-$389.0K
0
-100%
增持
RDNT
Radnet, Inc.
-$386.0K
54,900
+2%
减持
AVNW
Aviat Networks, Inc.
-$381.0K
73,207
-11%
增持
CCRN
Cross Country Healthcare, Inc.
+$374.0K
117,056
+50%
增持
STRL
Sterling Construction Co., Inc
+$366.0K
80,300
+18%
建仓
AMN
AMN Healthcare Svcs
+$365.0K
3,500
增持
—
Smart Global Hldgs, Inc.
-$363.0K
69,500
+129%
增持
MCRI
Monarch Casino & Resort, Inc.
+$359.0K
24,800
+2%
清仓
—
Headhunter Group Plc Spon ADR
-$347.0K
0
-100%
增持
IMXI
International Money Express, I
+$345.0K
70,100
+2%
增持
TDC
Teradata Corp
+$345.0K
28,080
+15%
建仓
—
Applied Industrial
+$308.0K
3,000
建仓
—
NV5 Global, Inc
+$293.0K
2,200
清仓
KMT
Kennametal, Inc.
-$291.0K
0
-100%
建仓
VC
Visteon Corp.
+$284.0K
2,600
增持
CARG
CarGurus, Inc.
+$264.0K
20,150
+14%
清仓
NVDA
Nvidia Corp.
-$259.0K
0
-100%
增持
CLH
Clean Harbors, Inc.
+$258.0K
4,900
+69%
建仓
VLRS
Controladora Vuela Comp de Avi
+$255.0K
14,000
增持
—
Avid Technology, Inc.
+$253.0K
41,900
+13%
增持
KFRC
KForce, Inc.
+$249.0K
17,200
+26%
建仓
AVNT
Avient Corporation
+$240.0K
5,000
清仓
—
Tri Pointe Homes, Inc.
-$237.0K
0
-100%
减持
—
SeaWorld Entertainment Inc.
+$224.0K
29,560
-3%
增持
CLFD
Clearfield, Inc.
-$214.0K
48,500
+21%
增持
MBUU
Malibu Boats, Inc.
+$212.0K
42,170
+30%
建仓
BHP
BHP Billiton Ltd. ADR
+$210.0K
2,718
清仓
PRG
PROG Holdings, Inc.
-$203.0K
0
-100%
增持
—
SP Plus Corporation
+$200.0K
40,200
+7%
增持
CBT
Cabot Corp.
+$199.0K
7,100
+39%
减持
MTSI
Macom Technology Solutions
-$197.0K
4,700
-23%
增持
MMSI
Merit Medical System Inc
+$190.0K
6,800
+62%
建仓
—
AFYA Ltd.
+$180.0K
12,500
减持
STC
Stewart Information Services
-$161.0K
3,400
-26%
增持
III
Information Svcs Group, Inc.
+$154.0K
246,100
+23%
建仓
—
Despegar Com Corp.
+$142.0K
11,600
增持
MOV
Movado Group, Inc.
+$140.0K
55,200
+15%
增持
—
Resources Connection, Inc.
+$139.0K
119,269
+12%
增持
LRN
Stride, Inc.
+$136.0K
14,000
+25%
增持
CERS
Cerus Corp.
+$121.0K
199,600
+39%
增持
NOV
NOV, Inc.
+$116.0K
15,200
+13%
减持
BJ
BJs Wholesale Club Holdings, I
-$110.0K
22,820
-8%
增持
RPD
Rapid7, Inc.
+$104.0K
25,360
+10%
增持
NEM
Newmont Mining
+$102.0K
5,857
+0%
增持
ASYS
Amtech Systems, Inc.
+$101.0K
110,700
+8%
增持
—
EnPro Industries, Inc.
+$97.0K
18,900
+19%
增持
—
Univar Solutions, Inc.
+$97.0K
12,100
+17%
增持
EIG
Employers Holdings, Inc.
+$89.0K
27,500
+10%
增持
JPM
JP Morgan Chase & Company Inc.
-$89.0K
4,050
+0%
增持
—
Shyft Group, Inc.
+$88.0K
39,700
+45%
增持
BDC
Belden, Inc.
+$80.0K
48,026
+22%
增持
—
Focus Finl Partners, Inc.
+$79.0K
6,700
+76%
增持
SCSC
Scansource, Inc.
+$79.0K
43,000
+6%
增持
ALNT
Allied Motion Technologies
-$77.0K
39,100
+15%
增持
RVLV
Revolve Group, Inc.
+$77.0K
8,000
+27%
增持
ZIP
ZipRecruiter, Inc.
+$71.0K
13,400
+41%
增持
SPY
SPDR S&P 500 ETF Trust
-$71.0K
3,627
+1%
增持
TRV
The Travelers Co., Inc.
+$59.0K
2,220
+0%
增持
CTS
CTS Corp.
+$57.0K
49,600
+7%
增持
DIOD
Diodes, Inc.
+$53.0K
4,900
+44%
减持
AAPL
Apple, Inc.
-$49.0K
5,967
-3%
增持
UFPI
UFP Industries, Inc.
-$43.0K
3,500
+3%
增持
KFY
Korn Ferry
-$37.0K
7,000
+8%
增持
HALO
Halozyme Therapeutics, Inc.
+$37.0K
107,450
+2%
增持
—
Cyberoptics Corp.
-$35.0K
43,500
+12%
增持
—
Dynavax Technologies Corp.
+$27.0K
105,400
+33%
增持
OPCH
Option Care Health Inc.
+$24.0K
11,600
+7%
增持
AMGN
Amgen, Inc.
+$23.0K
1,379
+0%
减持
MA
Mastercard, Inc.
-$20.0K
954
-5%
增持
MCD
McDonald's Corporation
-$18.0K
835
+0%
增持
FFWM
First Foundation Inc.
+$17.0K
35,200
+4%
增持
JNJ
Johnson & Johnson
+$17.0K
2,688
+0%
