Fund HoldingsOBERWEIS ASSET MANAGEMENT INC/

Total Portfolio Value
$3.39B
Total Bought
$995.68M
Total Sold
$386.39M
Net Transaction
+$609.29M
Filing Period:
Securities
SharesValue ($K)
Q4 2025
Q1 2026
Change
Q4 2025
Q1 2026
Weight (%)
Change
Applied Optoelectronics Inc.(AAOI)2,039,6412,349,969+310,32871,102198,7845.87%+127,682
Lumentum Hldgs, Inc.(LITE)280,930266,222-14,708103,548187,0905.53%+83,542
DigitalOcean Holdings, Inc.(DOCN)778,830927,505+148,67537,47779,5612.35%+42,084
Dana Inc.(DAN)796,5001,611,500+815,00018,92554,2271.60%+35,302
Fastly, Inc.(FSLY)689,8001,071,022+381,2227,02231,1240.92%+24,102
Ultra Clean Holdings(UCTT)0640,476+640,476039,8251.18%+39,825
Nova Ltd.(NVMI)113,285137,955+24,67037,20259,9111.77%+22,709
Leonardo DRS, Inc.(DRS)0449,500+449,500020,0120.59%+20,012
Indivior Plc(INDV)0653,413+653,413019,9160.59%+19,916
Chime Financial Inc.(CHYM)01,035,530+1,035,530019,3950.57%+19,395
Hinge Health, Inc.(HNGE)0465,766+465,766017,9600.53%+17,960
Macom Technology Solutions(MTSI)178,960215,886+36,92630,65247,9421.42%+17,290
Envista Holdings Corp.(NVST)0665,400+665,400016,8810.50%+16,881
Shake Shack, Inc.(SHAK)0187,570+187,570016,5940.49%+16,594
Everus Construction Group(ECG)0326,533+326,533038,5501.14%+38,550
BrightSpring Health Services(BTSG)908,0001,158,970+250,97034,00549,3841.46%+15,379
Clean Harbors, Inc.(CLH)0144,355+144,355041,3911.22%+41,391
Arlo Technologies, Inc.(ARLO)0982,300+982,300013,9780.41%+13,978
Solaris Energy Infrastructur(SEI)366,900531,889+164,98916,86630,0570.89%+13,191
Moog Inc. - A(MOG-A)044,910+44,910013,1420.39%+13,142
Core Natural Resources, Inc.(CNR)178,400269,800+91,40015,79028,2560.83%+12,466
A10 Networks, Inc.0504,300+504,300011,6590.34%+11,659
Lattice Semiconductor Corporat(LSCC)314,636374,436+59,80023,15134,7331.03%+11,582
Seacoast Bkg Corp.(SBCF)0378,866+378,866011,4760.34%+11,476
Carpenter Technology Corp.(CRS)82,61194,433+11,82226,00937,2211.10%+11,212
Federal Signal Corp.(FSS)0267,634+267,634028,9420.85%+28,942
Viavi Solutions, Inc.(VIAV)508,100593,200+85,1009,05419,7420.58%+10,687
Camtek, Ltd.(CAMT)218,880222,780+3,90023,27733,7761.00%+10,499
FirstCash Holdings, Inc(FCFS)131,300165,665+34,36520,92731,1450.92%+10,218
Globus Medical, Inc.-A(GMED)270,000392,200+122,20023,57433,7921.00%+10,218
Amprius Technologies, Inc.(AMPX)0585,000+585,00009,8630.29%+9,863
Silicon Motion Techn ADR(SIMO)0282,550+282,550031,7280.94%+31,728
Matador Resources Company(MTDR)0312,700+312,700019,7560.58%+19,756
Remitly Global, Inc.(RELY)01,454,300+1,454,300022,7890.67%+22,789
Ameris Bancorp(ABCB)0263,500+263,500020,5500.61%+20,550
Arcutis Biotherapeutics, Inc.(ARQT)808,4001,365,941+557,54123,47632,1820.95%+8,706
Littelfuse, Inc.(LFUS)071,800+71,800024,3650.72%+24,365
Argan, Inc033,322+33,322018,1490.54%+18,149
Diodes, Inc.(DIOD)0224,300+224,300015,3110.45%+15,311
Thermon Group Hldgs Inc.0154,700+154,70007,7970.23%+7,797
Advanced Energy Industry, Inc.049,183+49,183015,8720.47%+15,872
Phibro Animal Health Corp(PAHC)209,800277,100+67,3007,83815,3260.45%+7,488
American Public Education, Inc(APEI)0130,400+130,40007,4170.22%+7,417
LivaNova Plc(LIVN)212,300321,900+109,60013,06320,4600.60%+7,397
Babcock & Wilcox Enterprises,(BW)0500,200+500,20007,3480.22%+7,348
nLIGHT Inc.(LASR)356,400363,010+6,61013,36920,6990.61%+7,330
LeMaitre Vascular, Inc.(LMAT)0148,601+148,601016,2230.48%+16,223
Halozyme Therapeutics, Inc.(HALO)0219,930+219,930014,2140.42%+14,214
Magnolia Oil & Gas Corp.(MGY)0454,466+454,466014,3470.42%+14,347
Knowles Corp.(KN)0234,200+234,20006,0140.18%+6,014
Catalyst Pharmaceuticals, Inc.(CPRX)586,970780,570+193,60013,70019,3270.57%+5,627
PC Connection, Inc.(CNXN)096,200+96,20005,6240.17%+5,624
Dutch Bros., Inc.(BROS)404,500598,493+193,99324,76330,3200.90%+5,556
Merit Medical System Inc(MMSI)268,760424,209+155,44923,68929,2410.86%+5,552
ProPetro Holding Corp.(PUMP)947,900965,500+17,6009,01513,9130.41%+4,898
Arcosa, Inc.221,600267,700+46,10023,56128,4140.84%+4,853
Black Rock Coffee Bar, Inc.0365,600+365,60004,7240.14%+4,724
American Superconductor0849,900+849,900028,7690.85%+28,769
SharkNinja, Inc.(SN)526,310599,970+73,66058,89463,5371.88%+4,643
Rocky Brands, Inc.0118,000+118,00004,5690.13%+4,569
Tutor Perini Corp.(TPC)387,200393,900+6,70025,95030,4050.90%+4,455
Fabrinet(FN)030,263+30,263015,7830.47%+15,783
AAR Corp.272,700245,125-27,57522,57726,8310.79%+4,255
Blue Bird Corporation0389,238+389,238022,1050.65%+22,105
EZCorp, Inc.(EZPW)0639,400+639,400016,2280.48%+16,228
Precision Drilling Corp.(PDS)99,500112,600+13,1007,15211,0800.33%+3,928
Interdigital, Inc.(IDCC)042,645+42,645012,8790.38%+12,879
Rush Street Interactive, Inc.(RSI)1,411,7101,434,560+22,85027,43031,2020.92%+3,772
Nicolet Bankshares, Inc.074,800+74,800011,1170.33%+11,117
SiTime Corporation(SITM)106,396119,281+12,88537,57841,1941.22%+3,616
Eton Pharmaceuticals, Inc.(ETON)431,300439,300+8,0007,29310,8420.32%+3,549
Flowserve Corporation(FLS)409,941434,681+24,74028,44231,9530.94%+3,512
Primoris Services Corp.(PRIM)0166,100+166,100023,7590.70%+23,759
Calix, Inc.(CALX)244,600335,030+90,43012,94716,4130.48%+3,466
Zurn Elkay Water Solutions Cor(ZWS)0352,183+352,183015,7920.47%+15,792
Grand Canyon Education, Inc.(LOPE)0116,900+116,900019,8770.59%+19,877
Life Time Holdings, Inc.(LTH)1,059,3001,160,500+101,20028,15631,2640.92%+3,108
Pediatrix Medical Group, Inc.(MD)559,987701,087+141,10011,97814,9960.44%+3,018
Powell Industries Inc.(POWL)48,70034,157-14,54315,52518,4820.55%+2,957
Ducommun Inc.(DCO)099,900+99,900012,1880.36%+12,188
Benchmark Electronics Inc(BHE)198,300201,900+3,6008,47911,3190.33%+2,839
Rambus, Inc(RMBS)0526,316+526,316045,2791.34%+45,279
Frontdoor, Inc.(FTDR)0717,960+717,960037,9511.12%+37,951
Liquidia Corp.(LQDA)329,200372,100+42,90011,35414,0430.41%+2,689
Vistance Networks, Inc.(VISN)960,9121,092,012+131,10017,42119,8750.59%+2,453
Kiniksa Pharmaceuticals, Ltd.(KNSA)312,800318,634+5,83412,90315,3420.45%+2,439
Osi Systems, Inc.(OSIS)101,400106,593+5,19325,86328,3020.84%+2,438
Evolv Technologies Holdings(EVLV)1,077,9001,671,949+594,0497,71810,1150.30%+2,398
ICU Medical, Inc.(ICUI)168,040203,710+35,67023,97426,3090.78%+2,335
Assurant, Inc.(AIZ)83,000102,300+19,30019,99122,2820.66%+2,291
Alighnment Healthcare, Inc.(ALHC)747,500966,600+219,10014,76317,0310.50%+2,268
Skyward Specialty Ins Group(SKWD)237,500327,100+89,60012,13914,2880.42%+2,149
Lindblad Expeditions Holdings,(LIND)306,800378,721+71,9214,4246,5520.19%+2,128
ANI Pharmaceuticals, Inc.(ANIP)188,830221,386+32,55614,90617,0250.50%+2,118
Expro Group Holdings N.V.446,300454,600+8,3005,9587,9150.23%+1,956
The Gorman-Rupp Co.(GRC)095,000+95,00005,9020.17%+5,902
NPK International, Inc.(NPKI)508,750518,150+9,4006,0647,5080.22%+1,444
SPX Technologies, Inc.76,90083,441+6,54115,38516,6830.49%+1,299
OneSpaWorld Holdings Limited
COM
0485,690+485,690011,1470.33%+11,147
Super Group SGHC Ltd.
ORD SHS
1,268,5001,514,400+245,90015,15916,3560.48%+1,197
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