Fund Holdings — OBERWEIS ASSET MANAGEMENT INC/

Total Portfolio Value:
$2.73B
Total Bought:
$532.63M
Total Sold:
$420.64M
Net Transaction:
+$111.99M
Notable People:
James Walter Oberweis
Securities
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SharesValue
Q3 2025
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Q4 2025
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Change
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Q3 2025
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Q4 2025
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Weight (%)
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Change
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Lumentum Holdings Inc.(LITE)328,630280,930-47,700$53.47M$103.55M3.79%+$50.08M
Credo Technology Group
ORDINARY SHARES
643,948675,388+31,440$93.77M$97.18M3.55%+$3.42M
Applied Optoelectronics, Inc.(AAOI)1,888,0412,039,641+151,600$48.96M$71.10M2.60%+$22.14M
SharkNinja, Inc.(SN)482,810526,310+43,500$49.80M$58.89M2.15%+$9.09M
Ambarella, Inc.(AMBA)611,360617,860+6,500$50.45M$43.77M1.60%-$6.68M
Rambus Inc.(RMBS)507,899462,100-45,799$52.92M$42.46M1.55%-$10.46M
SkyWest, Inc.(SKYW)330,790382,220+51,430$33.28M$38.38M1.40%+$5.09M
Encompass Health Corporation(EHC)358,800358,971+171$45.57M$38.10M1.39%-$7.47M
SiTime Corporation(SITM)106,396106,3960$32.06M$37.58M1.37%+$5.52M
DigitalOcean Holdings, Inc.(DOCN)772,000778,830+6,830$26.37M$37.48M1.37%+$11.11M
Nova Ltd.(NVMI)113,285113,2850$36.21M$37.20M1.36%+$989.0K
Frontdoor, Inc.(FTDR)610,860610,8600$41.10M$35.24M1.29%-$5.86M
BrightSpring Health Services, Inc.(BTSG)908,000908,0000$26.84M$34.00M1.24%+$7.16M
MACOM Technology Solutions Holdings, Inc.(MTSI)177,790178,960+1,170$22.13M$30.65M1.12%+$8.52M
Veracyte, Inc.(VCYT)721,690726,740+5,050$24.78M$30.60M1.12%+$5.82M
Mercury Systems, Inc.(MRCY)398,500414,040+15,540$30.84M$30.23M1.11%-$614.8K
Flowserve Corporation(FLS)409,285409,941+656$21.75M$28.44M1.04%+$6.69M
Life Time Group Holdings, Inc.(LTH)866,4001,059,300+192,900$23.91M$28.16M1.03%+$4.24M
Waystar Holding Corp.(WAY)836,550840,600+4,050$31.72M$27.53M1.01%-$4.19M
Rush Street Interactive, Inc.(RSI)1,191,5601,411,710+220,150$24.40M$27.43M1.00%+$3.03M
Clean Harbors, Inc.(CLH)116,770116,870+100$27.12M$27.40M1.00%+$287.3K
Carpenter Technology Corporation(CRS)82,61182,6110$20.28M$26.01M0.95%+$5.72M
Tutor Perini Corporation(TPC)377,800387,200+9,400$24.78M$25.95M0.95%+$1.17M
OSI Systems, Inc.(OSIS)101,400101,4000$25.27M$25.86M0.95%+$590.1K
GeneDx Holdings Corp.(WGS)193,920198,770+4,850$20.89M$25.85M0.95%+$4.96M
Pegasystems Inc.(PEGA)389,400424,840+35,440$22.39M$25.37M0.93%+$2.98M
Freshworks Inc.(FRSH)2,059,4702,054,470-5,000$24.24M$25.17M0.92%+$927.3K
Dutch Bros Inc.(BROS)404,500404,5000$21.17M$24.76M0.91%+$3.59M
Genpact Ltd.
SHS
516,800521,602+4,802$21.65M$24.40M0.89%+$2.75M
Q2 Holdings, Inc.(QTWO)292,260336,860+44,600$21.16M$24.31M0.89%+$3.15M
Imax Corp.579,600652,300+72,700$18.98M$24.11M0.88%+$5.13M
American Superconductor665,700835,900+170,200$39.54M$24.06M0.88%-$15.48M
ICU Medical, Inc.(ICUI)149,130168,040+18,910$17.89M$23.97M0.88%+$6.08M
Merit Medical Systems, Inc.(MMSI)232,010268,760+36,750$19.31M$23.69M0.87%+$4.38M
Globus Medical, Inc.(GMED)0270,000+270,000$0$23.57M0.86%+$23.57M
Arcosa, Inc.221,600221,6000$20.77M$23.56M0.86%+$2.79M
Arcutis Biotherapeutics, Inc.(ARQT)0808,400+808,400$0$23.48M0.86%+$23.48M
Camtek Ltd.(CAMT)213,580218,880+5,300$22.44M$23.28M0.85%+$840.2K
Lattice Semiconductor Corporation(LSCC)275,536314,636+39,100$20.20M$23.15M0.85%+$2.95M
AAR Corp.236,500272,700+36,200$21.21M$22.58M0.83%+$1.37M
Everus Construction Group, Inc.(ECG)259,800259,8000$22.28M$22.23M0.81%-$49.4K
Silicon Motion Technology Corporation(SIMO)230,600236,300+5,700$21.86M$21.91M0.80%+$41.8K
Urban Outfitters, Inc.(URBN)234,300286,400+52,100$16.74M$21.55M0.79%+$4.82M
American Eagle Outfitters484,000814,500+330,500$8.28M$21.48M0.79%+$13.20M
iRhythm Holdings, Inc.(IRTC)81,200119,700+38,500$13.97M$21.24M0.78%+$7.27M
Alphatec Holdings, Inc.(ATEC)461,1221,000,400+539,278$6.70M$21.05M0.77%+$14.34M
The New York Times Company(NYT)252,000302,700+50,700$14.46M$21.01M0.77%+$6.55M
FirstCash Holdings, Inc.(FCFS)97,800131,300+33,500$15.49M$20.93M0.77%+$5.43M
Levi Strauss & Co.(LEVI)903,500993,900+90,400$21.05M$20.61M0.75%-$438.1K
Primoris Services Corporation(PRIM)192,400163,300-29,100$26.42M$20.27M0.74%-$6.15M
National Vision Holdings, Inc.(EYE)594,900784,500+189,600$17.37M$20.26M0.74%+$2.89M
Assurant, Inc.(AIZ)83,00083,0000$17.98M$19.99M0.73%+$2.01M
CarGurus, Inc.(CARG)518,400518,4000$19.30M$19.88M0.73%+$580.6K
Box, Inc.(BOX)652,320652,3200$21.05M$19.51M0.71%-$1.54M
Dana Incorporated(DAN)0796,500+796,500$0$18.92M0.69%+$18.92M
Impinj, Inc.(PI)107,120107,1200$19.36M$18.64M0.68%-$722.0K
Federal Signal Corporation(FSS)166,500166,5000$19.81M$18.08M0.66%-$1.73M
Blue Bird Corporation373,400382,638+9,238$21.49M$17.98M0.66%-$3.51M
Sensient Technologies Corporation(SXT)134,200188,000+53,800$12.59M$17.66M0.65%+$5.07M
Genius Sports Ltd.
SHARES CL A
1,015,1001,585,900+570,800$12.57M$17.48M0.64%+$4.91M
Vistance Networks, Inc.(VISN)790,912960,912+170,000$12.24M$17.42M0.64%+$5.18M
Solaris Energy Infrastructure, Inc.(SEI)366,900366,9000$14.66M$16.87M0.62%+$2.20M
Grand Canyon Education, Inc.(LOPE)99,80099,8000$21.91M$16.60M0.61%-$5.31M
Ultra Clean Holdings, Inc.(UCTT)613,300628,500+15,200$16.71M$15.92M0.58%-$792.5K
ACI Worldwide Inc.330,702330,7020$17.45M$15.81M0.58%-$1.64M
Core Natural Resources, Inc.(CNR)0178,400+178,400$0$15.79M0.58%+$15.79M
Littelfuse, Inc.(LFUS)62,30062,3000$16.14M$15.76M0.58%-$379.4K
Zeta Global Holdings Corp.(ZETA)761,200767,020+5,820$15.13M$15.61M0.57%+$483.8K
Powell Industries, Inc.(POWL)47,50048,700+1,200$14.48M$15.52M0.57%+$1.05M
SPX Technologies, Inc.76,90076,9000$14.36M$15.38M0.56%+$1.02M
Indivior Plc0424,941+424,941$0$15.25M0.56%+$15.25M
Super Group SGHC Ltd.
ORD SHS
01,268,500+1,268,500$0$15.16M0.55%+$15.16M
ANI Pharmaceuticals, Inc.(ANIP)138,900188,830+49,930$12.72M$14.91M0.55%+$2.18M
Alignment Healthcare, Inc.(ALHC)0747,500+747,500$0$14.76M0.54%+$14.76M
Qualys, Inc.(QLYS)84,000107,800+23,800$11.12M$14.33M0.52%+$3.21M
Mirion Technologies, Inc.(MIR)0607,800+607,800$0$14.23M0.52%+$14.23M
Commvault Systems, Inc.(CVLT)128,600110,900-17,700$24.28M$13.90M0.51%-$10.37M
Remitly Global, Inc.(RELY)1,002,8001,002,8000$16.35M$13.84M0.51%-$2.51M
Catalyst Pharmaceuticals, Inc.528,560586,970+58,410$10.41M$13.70M0.50%+$3.29M
nLIGHT, Inc.(LASR)266,000356,400+90,400$7.88M$13.37M0.49%+$5.49M
LivaNova PLC(LIVN)186,000212,300+26,300$9.74M$13.06M0.48%+$3.32M
Dave Inc.(DAVE)45,62258,922+13,300$9.09M$13.05M0.48%+$3.95M
HealthEquity, Inc.(HQY)140,080141,580+1,500$13.28M$12.97M0.47%-$305.2K
Calix, Inc.(CALX)0244,600+244,600$0$12.95M0.47%+$12.95M
Kiniksa Pharmaceuticals International, plc(KNSA)305,200312,800+7,600$11.85M$12.90M0.47%+$1.05M
The Vita Coco Company, Inc.(COCO)228,300233,400+5,100$9.70M$12.37M0.45%+$2.68M
Zurn Elkay Water Solutions Corporation(ZWS)266,000266,0000$12.51M$12.37M0.45%-$143.6K
EZCORP, Inc.(EZPW)685,500627,900-57,600$13.05M$12.19M0.45%-$858.1K
Interface, Inc.(TILE)425,300435,800+10,500$12.31M$12.17M0.44%-$140.6K
Skyward Specialty Insurance Group, Inc.(SKWD)231,800237,500+5,700$11.02M$12.14M0.44%+$1.11M
Adaptive Biotechnologies Corporation(ADPT)726,500744,500+18,000$10.87M$12.09M0.44%+$1.22M
Pediatrix Medical Group, Inc.(MD)545,600559,987+14,387$9.14M$11.98M0.44%+$2.84M
Ameris Bancorp(ABCB)156,400156,4000$11.47M$11.62M0.42%+$150.1K
Fabrinet(FN)45,90025,200-20,700$16.74M$11.47M0.42%-$5.26M
Liquidia Corporation(LQDA)321,200329,200+8,000$7.30M$11.35M0.42%+$4.05M
Turning Point Brands, Inc.(TPB)101,000103,500+2,500$9.98M$11.22M0.41%+$1.23M
Axogen, Inc.(AXGN)328,100336,200+8,100$5.85M$11.00M0.40%+$5.15M
Workiva Inc.(WK)0127,500+127,500$0$11.00M0.40%+$11.00M
Matador Resources Company(MTDR)253,900253,9000$11.41M$10.78M0.39%-$632.2K
Argan, Inc60,57132,971-27,600$16.36M$10.33M0.38%-$6.03M
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OBERWEIS ASSET MANAGEMENT INC/ — 13F Holdings — Q4 2025 | TickerTrail