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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
24Q3 调仓
2024-06-30 → 2024-09-30 · 共 150 项
建仓 32
增持 72
减持 22
清仓 24
方向
标的
Δ市值
现股数(环比)
增持
ADMA
ADMA Biologics, Inc.
+$35.3M
2,907,080
+42%
清仓
—
Constellium NV Cl A
-$34.7M
0
-100%
建仓
ICUI
ICU Medical, Inc.
+$23.8M
130,500
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。
建仓
LNTH
Lantheus Hldgs Inc.
+$21.0M
191,400
增持
—
SharkNinja, Inc.
+$20.6M
462,190
+17%
建仓
DOCS
Doximity, Inc.
+$20.2M
463,100
增持
ZETA
Zeta Global Holdings Corp.
+$19.8M
1,604,130
+1%
建仓
—
Genpact Ltd.
+$17.3M
442,400
建仓
BOX
Box, Inc.
+$17.1M
522,000
建仓
DOCN
Digital Ocean Holdings, Inc.
+$17.1M
422,200
建仓
MTSI
Macom Technology Solutions
+$17.0M
153,100
清仓
RAMP
Liveramp Hldgs, Inc.
-$15.9M
0
-100%
增持
PSN
Parsons Corp.
+$15.6M
267,720
+80%
清仓
WWD
Woodward, Inc.
-$14.2M
0
-100%
清仓
ATEC
Alphatec Hldgs Inc.
-$13.9M
0
-100%
建仓
—
Mr. Cooper Group Inc.
+$13.3M
144,600
建仓
BFAM
Bright Horizons Family Solutio
+$13.1M
93,304
建仓
—
Nova Ltd.
+$13.0M
62,400
清仓
—
Azek Co., Inc.
-$12.8M
0
-100%
建仓
BRBR
BellRing Brands, Inc.
+$12.5M
206,000
清仓
SLAB
Silicon Laboratories, Inc.
-$12.1M
0
-100%
清仓
—
Informatica Corp.
-$11.7M
0
-100%
建仓
PRMB
Primo Brands Corp.
+$11.1M
438,800
减持
ELF
e.l.f. Beauty, Inc.
-$10.5M
38,400
-45%
增持
VCYT
Veracyte, Inc.
+$10.2M
715,920
+9%
增持
FTDR
Frontdoor, Inc.
+$9.8M
411,400
+39%
增持
YOU
Clear Secure, Inc.
+$9.4M
579,400
+11%
减持
OSK
Oshkosh Corp.
-$9.3M
104,249
-43%
建仓
—
Ambarella, Inc.
+$9.1M
162,000
建仓
ABCB
Ameris Bancorp
+$8.0M
127,900
建仓
VRNS
Varonis Sys, Inc.
+$7.9M
139,800
建仓
TILE
Interface, Inc.
+$7.8M
409,900
增持
TNDM
Tandem Diabetes Care, Inc.
+$7.6M
448,050
+59%
增持
—
Weatherford International PLC
-$7.3M
336,714
+15%
清仓
PFBC
Preferred Bank
-$7.2M
0
-100%
清仓
JBI
Janus International Group, Inc
-$7.1M
0
-100%
清仓
—
Primo Water Corp.
-$7.1M
0
-100%
建仓
CBSH
Commerce Bancshares, Inc.
+$7.0M
118,300
增持
—
Fabrinet
+$6.7M
57,200
+105%
清仓
TREX
Trex Company, Inc.
-$6.6M
0
-100%
建仓
PAYO
Payoneer Global, Inc.
+$6.5M
858,691
清仓
ALGM
Allegro MicroSystems, Inc.
-$6.4M
0
-100%
建仓
ERII
Energy Recovery, Inc,
+$6.3M
363,700
建仓
PRG
PROG Holdings, Inc.
+$6.1M
126,800
清仓
ROCK
Gibraltar Inds
-$6.0M
0
-100%
建仓
—
Radware, Ltd.
+$5.9M
264,700
减持
ACIW
ACI Worldwide Inc.
-$5.9M
205,712
-50%
增持
OSCR
Oscar Health, Inc.
+$5.8M
576,850
+42%
减持
CECO
CECO Environmental Corp.
-$5.7M
201,400
-49%
建仓
GDYN
Grid Dynamics Holdings, Inc.
+$5.7M
403,900
建仓
FBK
FB Financial Corp.
+$5.6M
118,700
增持
CDNA
CareDx, Inc.
+$5.3M
294,500
+18%
清仓
UPWK
Upwork, Inc.
-$5.0M
0
-100%
建仓
—
Kiniksa Pharmaceuticals, Ltd.
+$5.0M
201,000
增持
ITRI
Itron Inc
+$4.9M
186,910
+23%
增持
AVAV
Aerovironment, Inc.
+$4.7M
92,740
+22%
增持
FSS
Federal Signal Corp.
+$4.7M
189,730
+22%
增持
CBT
Cabot Corp.
+$4.7M
152,800
+14%
减持
ESAB
ESAB Corporation
-$4.7M
89,800
-40%
增持
EHC
Encompass Health Corporation
+$4.6M
306,608
+5%
建仓
AGX
Argan, Inc
+$4.5M
44,400
建仓
NIC
Nicolet Bankshares, Inc.
+$4.4M
46,400
建仓
HLIT
Harmonic, Inc.
+$4.4M
303,000
增持
CCS
Century Communities, Inc.
+$4.3M
192,700
+1%
增持
—
Cellebrite DI Ltd.
+$4.3M
684,810
+13%
增持
CRS
Carpenter Technology Corp.
+$4.1M
77,240
+3%
清仓
NVTS
Navitas Semiconductor Corp.
-$4.0M
0
-100%
增持
BVS
Bioventus, Inc.
+$3.9M
510,914
+34%
清仓
MBWM
Mercantile Bank Corp.
-$3.6M
0
-100%
增持
BMI
Badger Meter
+$3.6M
60,300
+18%
增持
CROX
Crocs, Inc.
+$3.6M
152,900
+20%
清仓
TRNS
Transcat, Inc.
-$3.5M
0
-100%
增持
FLS
Flowserve Corporation
+$3.4M
409,962
+11%
减持
MSA
MSA Safety Inc
-$3.4M
34,900
-32%
增持
MMSI
Merit Medical System Inc
+$3.3M
202,140
+4%
增持
AIZ
Assurant, Inc.
+$3.3M
68,400
+11%
增持
FORM
Formfactor Inc.
-$3.3M
330,780
+8%
建仓
AXGN
AxoGen Inc.
+$3.2M
228,000
建仓
NGVC
Natural Grocers by Vitamin Cot
+$3.1M
105,000
清仓
PRLB
Proto Labs Inc.
-$3.0M
0
-100%
增持
DUOL
Duolingo, Inc.
+$3.0M
31,000
+13%
减持
KWR
Quaker Chemical Corporation
-$2.9M
37,700
-31%
增持
QTWO
Q2 Holdings, Inc.
+$2.9M
99,590
+18%
增持
IMAX
Imax Corp.
+$2.9M
447,000
+19%
增持
VECO
Veeco Instruments, Inc.
-$2.8M
326,600
+12%
减持
—
LivaNova Plc
-$2.7M
284,685
-12%
增持
MHO
M/I Homes, Inc.
+$2.7M
44,300
+10%
增持
FCFS
FirstCash Holdings, Inc
+$2.6M
97,900
+19%
增持
ICFI
ICF International, Inc.
+$2.6M
115,000
+3%
清仓
BJRI
BJ's Restaurants, Inc.
-$2.5M
0
-100%
增持
FIX
Comfort Systems USA Inc.
+$2.5M
25,200
+5%
增持
LOPE
Grand Canyon Education, Inc.
+$2.5M
68,400
+33%
增持
AMPH
Amphastar Pharmaceuticals, Inc
+$2.4M
161,155
+19%
减持
ITGR
Integer Holdings Corporation
-$2.3M
88,100
-26%
清仓
OXM
Oxford Inds, Inc.
-$2.3M
0
-100%
增持
CLH
Clean Harbors, Inc.
+$2.1M
105,370
+2%
减持
VSEC
VSE Corp.
-$2.1M
45,200
-32%
减持
PLAB
Photronics, Inc.
-$2.0M
186,000
-30%
增持
UCTT
Ultra Clean Holdings
+$1.9M
440,100
+38%
增持
ANF
Abercrombie & Fitch Co.
+$1.8M
128,500
+42%
减持
ACMR
ACM Research, Inc. Class A
-$1.7M
416,500
-6%
增持
ATI
ATI, Inc.
+$1.7M
99,100
+12%
减持
TMDX
TransMedics Group, Inc.
-$1.7M
168,690
-10%
减持
ONTO
Onto Innovation, Inc.
-$1.6M
129,235
-0%
增持
HIMS
Hims & Hers Health, Inc.
+$1.5M
943,600
+20%
减持
CDNS
Cadence Design System, Inc.
-$1.4M
9,200
-28%
减持
VRT
Vertiv Holdings Co.
+$1.4M
125,961
-2%
增持
HQY
HealthEquity Inc.
+$1.3M
84,400
+31%
增持
NEO
NeoGenomics, Inc.
+$1.3M
718,700
+7%
增持
BLKB
Blackbaud
+$1.3M
76,300
+13%
增持
ARDX
Ardelyx, Inc.
+$1.2M
579,300
+56%
增持
KEX
Kirby Corp.
+$1.2M
53,250
+20%
建仓
FUTU
Futu Holdings Ltd.
+$1.1M
12,000
清仓
TME
Tencent Music Entertainment AD
-$1.1M
0
-100%
减持
LRN
Stride, Inc.
+$1.1M
114,800
-7%
增持
—
Tidewater Inc
+$1.1M
211,505
+43%
增持
LMAT
LeMaitre Vascular, Inc.
+$1.1M
100,704
+0%
减持
TSM
Taiwan Semiconductor ADR
-$1.0M
12,500
-32%
减持
LMB
Limbach Hldgs, Inc.
-$987.9K
110,800
-33%
增持
—
Rev Group, Inc.
+$957.9K
131,800
+20%
增持
ADUS
Addus Homecare Corp.
+$936.7K
48,500
+2%
增持
—
Semrush Holdings, Inc.
+$916.1K
194,000
+22%
增持
DECK
Deckers Outdoor Corp.
-$881.2K
51,840
+449%
增持
SRCE
1st Source Corp.
+$873.1K
71,800
+12%
增持
—
Alpha & Omega Semiconductor
+$871.9K
204,700
+14%
增持
SPSC
SPS Comm Inc.
+$754.2K
34,700
+9%
减持
SPXC
SPX Technologies, Inc.
-$734.8K
61,800
-17%
增持
PDD
PDD Holdings Inc. ADR
+$696.4K
17,000
+42%
增持
KRYS
Krystal Biotech, Inc.
+$695.9K
46,800
+10%
增持
NXT
Nextracker, Inc.
-$695.2K
330,300
+18%
建仓
MPWR
Monolithic Pwr Sys
+$693.4K
750
增持
BROS
Dutch Bros., Inc.
+$692.8K
219,000
+43%
增持
—
International Seaways, Inc.
+$662.1K
186,700
+23%
增持
FRME
First Merchants Corporation
+$623.9K
127,200
+3%
增持
HAE
Haemonetics Corp.
+$616.3K
177,795
+8%
增持
SG
Sweetgreen, Inc.
+$608.3K
95,591
+4%
增持
ACLS
Axcelis Technologies
-$598.9K
118,779
+29%
增持
—
Credo Technology Group
+$588.3K
828,314
+6%
清仓
DIDIY
DiDi Global Inc. ADR
-$538.2K
0
-100%
增持
—
OneSpaWorld Holdings Limited
+$518.9K
422,800
+1%
建仓
TAL
Tal Education Group ADR
+$473.6K
40,000
减持
MMS
Maximus, Inc.
+$471.1K
106,800
-3%
清仓
BZ
Kanzhun Limited ADR
-$451.4K
0
-100%
增持
ULH
Universal Logistics Holdings
+$449.9K
69,000
+11%
增持
CLW
Clearwater Paper Corp
-$438.1K
175,200
+56%
减持
OLED
Universal Display Corp.
-$428.7K
98,172
-2%
清仓
MU
Micron Technology
-$394.6K
0
-100%
增持
LBRT
Liberty Energy, Inc.
+$360.7K
326,500
+16%
增持
—
Dynavax Technologies Corp.
+$359.0K
366,200
+11%
增持
LQDA
Liquidia Corp.
+$310.6K
250,900
+37%
