OBERWEIS ASSET MANAGEMENT INC/

Institutional InvestorSimilar funds →SEC EDGAR: CIK 937886
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13F Reported Value

$4.8B

Holdings

176

Latest Filing

2026-06-30

Filing Quarter

Q2 2026

Portfolio Overview

OBERWEIS ASSET MANAGEMENT INC/ disclosed 176 positions worth $4.8B in its Form 13F-HR for Q2 2026, led by $CRDO (Credo Technology Group Holding Ltd) at 5.7% of the equity portfolio, followed by $AAOI and $DOCN. During the quarter the fund opened 22 new positions and exited 26 — including a new stake in $MXL and a full exit from $FLS. The portfolio is most concentrated in Technology (49.7% of disclosed assets). All figures are sourced directly from OBERWEIS ASSET MANAGEMENT INC/’s Form 13F-HR filing with the SEC under CIK 937886.

Sector Allocation

TechnologyHealthcareIndustrialsConsumer DiscretionaryFinancialsEnergy

AUM History

Top Equity Holdings by Value

Quarterly Activity — Q2 2026

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Top Holdings

AI Quality Scored

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32-signal composite ranking on each of OBERWEIS ASSET MANAGEMENT INC/'s 176 positions.

Showing top 10 of 176 holdings.

Sector Allocation

Technology

$2.4B

Healthcare

$768.6M

Industrials

$734.4M

Consumer Discretionary

$248.8M

Financials

$182.9M

Energy

$179.2M

Communication Services

$167.6M

Materials

$93.4M

Full Holdings — OBERWEIS ASSET MANAGEMENT INC/ (Q2 2026)

All 176 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.

TickerCompanyValue
CRDO$CRDOCredo Technology Group Holding Ltd$275.6M
AAOI$AAOIAPPLIED OPTOELECTRONICS, INC.$265.4M
DOCN$DOCNDigitalOcean Holdings, Inc.$146.0M
SIMO$SIMOSilicon Motion Technology CORP$105.4M
UCTT$UCTTUltra Clean Holdings, Inc.$92.3M
SN$SNSharkNinja, Inc.$90.4M
SITM$SITMSITIME Corp$89.1M
BTSG$BTSGBrightSpring Health Services, Inc.$82.7M
HNGE$HNGEHinge Health, Inc.$71.0M
RMBS$RMBSRAMBUS INC$70.0M
MTSI$MTSIMACOM Technology Solutions Holdings, Inc.$68.2M
LITE$LITELumentum Holdings Inc.$61.9M
LSCC$LSCCLATTICE SEMICONDUCTOR CORP$59.9M
NVMI$NVMINOVA LTD.$59.0M
CRS$CRSCARPENTER TECHNOLOGY CORP$57.5M
FTDR$FTDRFrontdoor, Inc.$55.8M
ECG$ECGEverus Construction Group, Inc.$54.5M
VCYT$VCYTVERACYTE, INC.$51.5M
POWL$POWLPOWELL INDUSTRIES INC$51.4M
LTH$LTHLife Time Group Holdings, Inc.$48.6M
RSI$RSIRush Street Interactive, Inc.$48.4M
MRCY$MRCYMERCURY SYSTEMS INC$48.0M
BROS$BROSDutch Bros Inc.$47.1M
CLH$CLHCLEAN HARBORS INC$45.9M
SEI$SEISolaris Energy Infrastructure, Inc.$45.4M
DIOD$DIODDIODES INC /DEL/$45.3M
ACA$ACAArcosa, Inc.$42.9M
BLBD$BLBDBlue Bird Corp$41.8M
CAMT$CAMTCAMTEK LTD$41.3M
LIVN$LIVNLivaNova PLC$41.1M
AMSC$AMSCAMERICAN SUPERCONDUCTOR CORP /DE/$41.0M
MXL$MXLMAXLINEAR, INC$40.9M
GMED$GMEDGLOBUS MEDICAL INC$40.5M
NOVT$NOVTNOVANTA INC$39.6M
SKYW$SKYWSKYWEST INC$38.1M
VIAV$VIAVVIAVI SOLUTIONS INC.$37.9M
MOG-A$MOG-AMOOG INC.$36.8M
LFUS$LFUSLITTELFUSE INC /DE$36.3M
ARQT$ARQTArcutis Biotherapeutics, Inc.$36.0M
FCFS$FCFSFirstCash Holdings, Inc.$35.9M
BLLN$BLLNBillionToOne, Inc.$35.9M
DAN$DANDANA Inc$35.9M
ESI$ESIElement Solutions Inc$35.3M
AIR$AIRAAR CORP$35.2M
RELY$RELYRemitly Global, Inc.$35.2M
ICUI$ICUIICU MEDICAL INC/DE$34.8M
FSS$FSSFEDERAL SIGNAL CORP /DE/$34.6M
OUST$OUSTOuster, Inc.$34.1M
LEVI$LEVILEVI STRAUSS & CO$33.7M
MMSI$MMSIMERIT MEDICAL SYSTEMS INC$32.8M
AIZ$AIZASSURANT, INC.$32.8M
WAY$WAYWaystar Holding Corp.$32.6M
CECO$CECOCECO ENVIRONMENTAL CORP$32.5M
LQDA$LQDALiquidia Corp$32.4M
EHC$EHCEncompass Health Corp$32.0M
INDV$INDVIndivior Pharmaceuticals, Inc.$32.0M
CGNX$CGNXCOGNEX CORP$31.0M
GVA$GVAGRANITE CONSTRUCTION INC$30.5M
PDFS$PDFSPDF SOLUTIONS INC$30.2M
NVST$NVSTEnvista Holdings Corp$29.5M
DAVE$DAVEDave Inc./DE$29.4M
AMBA$AMBAAMBARELLA INC$29.4M
LASR$LASRNLIGHT, INC.$28.8M
MYRG$MYRGMYR GROUP INC.$27.1M
ADPT$ADPTAdaptive Biotechnologies Corp$27.0M
DRS$DRSLeonardo DRS, Inc.$26.8M
TPC$TPCTUTOR PERINI CORP$26.8M
KGS$KGSKodiak Gas Services, Inc.$26.7M
KNSA$KNSAKiniksa Pharmaceuticals International, plc$26.4M
CHYM$CHYMChime Financial, Inc.$26.0M
ALHC$ALHCAlignment Healthcare, Inc.$25.9M
HALO$HALOHALOZYME THERAPEUTICS, INC.$25.1M
IRTC$IRTCiRhythm Holdings, Inc.$24.0M
ABCB$ABCBAmeris Bancorp$23.9M
ZWS$ZWSZurn Elkay Water Solutions Corp$23.7M
OSIS$OSISOSI SYSTEMS INC$23.4M
OMDA$OMDAOmada Health, Inc.$23.0M
URBN$URBNURBAN OUTFITTERS INC$22.4M
ANIP$ANIPANI PHARMACEUTICALS INC$22.0M
EZPW$EZPWEZCORP INC$21.8M
CNR$CNRCore Natural Resources, Inc.$21.7M
DCO$DCODUCOMMUN INC /DE/$21.1M
SKWD$SKWDSkyward Specialty Insurance Group, Inc.$21.0M
WLDN$WLDNWilldan Group, Inc.$20.8M
ATEN$ATENA10 Networks, Inc.$20.6M
HQY$HQYHEALTHEQUITY, INC.$20.6M
SGHC$SGHCSuper Group (SGHC) Ltd$20.6M
SPXC$SPXCSPX Technologies, Inc.$20.5M
FORM$FORMFORMFACTOR INC$20.4M
WTS$WTSWATTS WATER TECHNOLOGIES INC$19.9M
OPLN$OPLNOPENLANE, Inc.$19.8M
QTWO$QTWOQ2 Holdings, Inc.$19.7M
BOX$BOXBOX INC$19.7M
VSEC$VSECVSE CORP$19.7M
BHE$BHEBENCHMARK ELECTRONICS INC$19.6M
NYT$NYTNEW YORK TIMES CO$19.4M
AEIS$AEISADVANCED ENERGY INDUSTRIES INC$18.4M
ETON$ETONEton Pharmaceuticals, Inc.$18.2M
AXGN$AXGNAxogen, Inc.$17.9M
FN$FNFabrinet$17.1M
AGX$AGXARGAN INC$16.9M
VISN$VISNVistance Networks, Inc.$16.6M
TRS$TRSTRIMAS CORP$16.3M
ZETA$ZETAZeta Global Holdings Corp.$16.1M
SBCF$SBCFSEACOAST BANKING CORP OF FLORIDA$15.9M
TILE$TILEINTERFACE INC$15.9M
MD$MDPediatrix Medical Group, Inc.$15.8M
PUMP$PUMPProPetro Holding Corp.$15.7M
FSLY$FSLYFastly, Inc.$15.6M
MTDR$MTDRMatador Resources Co$15.6M
OSW$OSWONESPAWORLD HOLDINGS Ltd$15.6M
LMAT$LMATLEMAITRE VASCULAR INC$15.2M
CALX$CALXCALIX, INC$15.0M
ARLO$ARLOArlo Technologies, Inc.$14.7M
INOD$INODINNODATA INC$14.3M
MGNI$MGNIMAGNITE, INC.$14.0M
NIC$NICNICOLET BANKSHARES INC$13.8M
MHO$MHOM/I HOMES, INC.$13.4M
LOPE$LOPEGrand Canyon Education, Inc.$13.2M
IMAX$IMAXIMAX CORP$13.0M
PLUS$PLUSEPLUS INC$12.6M
KN$KNKnowles Corp$12.2M
IDCC$IDCCInterDigital, Inc.$12.2M
BOOT$BOOTBoot Barn Holdings, Inc.$12.0M
LIND$LINDLINDBLAD EXPEDITIONS HOLDINGS, INC.$11.9M
MGY$MGYMagnolia Oil & Gas Corp$11.7M
VVX$VVXV2X, Inc.$11.0M
EVLV$EVLVEvolv Technologies Holdings, Inc.$10.6M
CRMD$CRMDCorMedix Inc.$10.4M
GRC$GRCGORMAN RUPP CO$10.0M
FBK$FBKFB Financial Corp$9.8M
PAHC$PAHCPHIBRO ANIMAL HEALTH CORP$9.8M
NPKI$NPKINPK International Inc.$9.3M
APEI$APEIAMERICAN PUBLIC EDUCATION INC$9.3M
CPRX$CPRXCATALYST PHARMACEUTICALS, INC.$9.2M
ADUS$ADUSAddus HomeCare Corp$9.0M
BW$BWBabcock & Wilcox Enterprises, Inc.$8.9M
RDWR$RDWRRADWARE LTD$8.8M
AMPX$AMPXAmprius Technologies, Inc.$8.8M
PDS$PDSPRECISION DRILLING Corp$8.5M
KFRC$KFRCKFORCE INC$8.3M
SRCE$SRCE1ST SOURCE CORP$7.7M
CNXN$CNXNPC CONNECTION INC$7.6M
RDVT$RDVTRed Violet, Inc.$7.6M
BVS$BVSBioventus Inc.$6.7M
XPRO.R1575828$XPRO.R1575828EXPRO GROUP HOLDINGS N.V.$6.7M
CHEF$CHEFChefs' Warehouse, Inc.$5.5M
COCO$COCOVita Coco Company, Inc.$5.5M
RCKY$RCKYROCKY BRANDS, INC.$4.9M
SPY$SPYSPDR S&P 500 ETF TRUST$1.8M
ACMR$ACMRACM Research, Inc.$1.6M
JPM$JPMJPMORGAN CHASE & CO$1.0M
AAPL$AAPLApple Inc.$1.0M
MSFT$MSFTMICROSOFT CORP$994,098
MU$MUMICRON TECHNOLOGY INC$808,003
GOOG$GOOGAlphabet Inc.$679,074
FRSH$FRSHFreshworks Inc.$584,430
JNJ$JNJJOHNSON & JOHNSON$583,522
GOOGL$GOOGLAlphabet Inc.$572,395
TRV$TRVTRAVELERS COMPANIES, INC.$522,568
AMGN$AMGNAMGEN INC$375,334
BNY$BNYBank of New York Mellon Corp$363,124
CAT$CATCATERPILLAR INC$349,627
MA$MAMastercard Inc$339,969
HTHT$HTHTH World Group Ltd$333,760
INTC$INTCINTEL CORP$323,143
RMD$RMDRESMED INC$282,576
NEM$NEMNEWMONT Corp /DE/$268,629
WFC$WFCWELLS FARGO & COMPANY/MN$260,325
WMT$WMTWalmart Inc.$242,224
AFL$AFLAFLAC INC$234,500
MCD$MCDMCDONALDS CORP$231,448
FCX$FCXFREEPORT-MCMORAN INC$225,945
MRK$MRKMerck & Co., Inc.$222,305
LLY$LLYELI LILLY & Co$219,496
Xenacare Hldgs, Inc. - COM$0

New Positions (22)

MXL$MXL MAXLINEAR, INC$40.9M
NOVT$NOVT NOVANTA INC$39.6M
BLLN$BLLN BillionToOne, Inc.$35.9M
ESI$ESI Element Solutions Inc$35.3M
OUST$OUST Ouster, Inc.$34.1M
CGNX$CGNX COGNEX CORP$31.0M
GVA$GVA GRANITE CONSTRUCTION INC$30.5M
PDFS$PDFS PDF SOLUTIONS INC$30.2M
MYRG$MYRG MYR GROUP INC.$27.1M
KGS$KGS Kodiak Gas Services, Inc.$26.7M
OMDA$OMDA Omada Health, Inc.$23.0M
WLDN$WLDN Willdan Group, Inc.$20.8M
FORM$FORM FORMFACTOR INC$20.4M
WTS$WTS WATTS WATER TECHNOLOGIES INC$19.9M
OPLN$OPLN OPENLANE, Inc.$19.8M

Exited Positions (26)

FLS$FLS FLOWSERVE CORP
PRIM$PRIM Primoris Services Corp
G$G Genpact LTD
ATEC$ATEC Alphatec Holdings, Inc.
EYE$EYE National Vision Holdings, Inc.
PEGA$PEGA PEGASYSTEMS INC
AEO$AEO AMERICAN EAGLE OUTFITTERS INC
WGS$WGS GeneDx Holdings Corp.
SHAK$SHAK Shake Shack Inc.
MIR$MIR Mirion Technologies, Inc.
PI$PI IMPINJ INC
QLYS$QLYS QUALYS, INC.
AORT$AORT ARTIVION, INC.
THR$THR Thermon Group Holdings, Inc.
LINC$LINC LINCOLN EDUCATIONAL SERVICES CORP

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