Fund Holdings — OBERWEIS ASSET MANAGEMENT INC/

Total Portfolio Value:
$1.38B
Total Bought:
$481.06M
Total Sold:
$196.00M
Net Transaction:
+$285.05M
Notable People:
James Walter Oberweis
Securities
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SharesValue
Q4 2023
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Q1 2024
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Change
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Q4 2023
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Q1 2024
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Weight (%)
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Change
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Constellium SE(CSTM)1,850,3711,803,271-47,100$36.93M$39.87M2.88%+$2.94M
Weatherford International plc(WFRD)240,060222,100-17,960$23.49M$25.63M1.85%+$2.15M
Axcelis Technologies245,329209,339-35,990$31.82M$23.35M1.69%-$8.47M
Onto Innovation Inc.(ONTO)44,600106,930+62,330$6.82M$19.36M1.40%+$12.54M
Alphatec Holdings, Inc.(ATEC)1,607,8201,385,880-221,940$24.29M$19.11M1.38%-$5.18M
Vertiv Holdings Co(VRT)233,672229,650-4,022$11.22M$18.76M1.36%+$7.53M
ADMA Biologics, Inc.2,710,7002,790,700+80,000$12.25M$18.42M1.33%+$6.17M
Amphastar Pharmaceuticals, Inc.(AMPH)340,265417,865+77,600$21.05M$18.35M1.33%-$2.70M
SkyWest, Inc.(SKYW)133,700262,360+128,660$6.98M$18.12M1.31%+$11.14M
Encompass Health Corporation(EHC)145,245204,136+58,891$9.69M$16.86M1.22%+$7.17M
Silicon Motion Technology Corporation(SIMO)76,400217,400+141,000$4.68M$16.73M1.21%+$12.05M
Oshkosh Corporation(OSK)98,899133,827+34,928$10.72M$16.69M1.21%+$5.97M
Clean Harbors, Inc.(CLH)57,05581,295+24,240$9.96M$16.37M1.18%+$6.41M
Aerovironment, Inc.69,800101,570+31,770$8.80M$15.57M1.13%+$6.77M
Camtek Ltd.(CAMT)174,480178,180+3,700$12.11M$14.93M1.08%+$2.82M
Veracyte, Inc.(VCYT)656,810671,700+14,890$18.07M$14.88M1.08%-$3.18M
Ultra Clean Holdings, Inc.(UCTT)247,100319,600+72,500$8.44M$14.68M1.06%+$6.25M
TransMedics Group, Inc.(TMDX)212,900198,200-14,700$16.80M$14.65M1.06%-$2.15M
SharkNinja, Inc.(SN)0235,200+235,200$0$14.65M1.06%+$14.65M
ICF International, Inc.(ICFI)66,10096,900+30,800$8.86M$14.60M1.06%+$5.73M
ESAB Corporation(ESAB)79,100129,200+50,100$6.85M$14.29M1.03%+$7.43M
Parsons Corporation(PSN)133,000172,140+39,140$8.34M$14.28M1.03%+$5.94M
Crocs, Inc.(CROX)50,00095,400+45,400$4.67M$13.72M0.99%+$9.05M
Nextracker, Inc.103,200235,700+132,500$4.83M$13.26M0.96%+$8.43M
Universal Display Corporation(OLED)66,54277,442+10,900$12.73M$13.05M0.94%+$318.3K
Zeta Global Holdings Corp.(ZETA)935,4801,181,980+246,500$8.25M$12.92M0.93%+$4.67M
ACM Research, Inc.(ACMR)393,400441,130+47,730$7.69M$12.85M0.93%+$5.17M
Flowserve Corporation(FLS)245,271274,378+29,107$10.11M$12.53M0.91%+$2.42M
Haemonetics Corporation(HAE)105,880143,695+37,815$9.05M$12.26M0.89%+$3.21M
Acadia Healthcare Company, Inc.(ACHC)90,200151,650+61,450$7.01M$12.01M0.87%+$5.00M
Aehr Test Systems, Inc.(AEHR)1,091,202967,852-123,350$28.95M$12.00M0.87%-$16.95M
Merit Medical Systems, Inc.(MMSI)107,090156,490+49,400$8.13M$11.85M0.86%+$3.72M
Applied Optoelectronics, Inc.(AAOI)891,915849,615-42,300$17.23M$11.78M0.85%-$5.46M
Century Communities, Inc.(CCS)0121,200+121,200$0$11.70M0.85%+$11.70M
FirstCash Holdings, Inc.(FCFS)74,20091,700+17,500$8.04M$11.70M0.85%+$3.65M
Itron, Inc.(ITRI)0125,600+125,600$0$11.62M0.84%+$11.62M
NeoGenomics, Inc.(NEO)392,700737,200+344,500$6.35M$11.59M0.84%+$5.23M
Blue Bird Corporation286,700299,100+12,400$7.73M$11.47M0.83%+$3.74M
ACI Worldwide Inc.144,262344,562+200,300$4.41M$11.44M0.83%+$7.03M
LivaNova PLC(LIVN)74,200202,500+128,300$3.84M$11.33M0.82%+$7.49M
Integer Holdings Corporation(ITGR)71,00096,700+25,700$7.03M$11.28M0.82%+$4.25M
Axonics, Inc.178,470163,570-14,900$11.11M$11.28M0.82%+$175.2K
Silicon Laboratories Inc.(SLAB)078,000+78,000$0$11.21M0.81%+$11.21M
Evolent Health, Inc.(EVH)214,540338,940+124,400$7.09M$11.11M0.80%+$4.03M
Azek Co., Inc.0220,900+220,900$0$11.09M0.80%+$11.09M
Federal Signal Corporation(FSS)98,830127,830+29,000$7.58M$10.85M0.78%+$3.26M
Informatica Corp.182,100309,000+126,900$5.17M$10.81M0.78%+$5.65M
FormFactor, Inc.(FORM)159,200236,700+77,500$6.64M$10.80M0.78%+$4.16M
CECO Environmental Corp.(CECO)426,700463,400+36,700$8.65M$10.67M0.77%+$2.01M
Sterling Infrastructure, Inc.(STRL)88,00096,600+8,600$7.74M$10.66M0.77%+$2.92M
Clear Secure, Inc.(YOU)303,500500,500+197,000$6.27M$10.65M0.77%+$4.38M
International Seaways, Inc.(INSW)94,600198,700+104,100$4.30M$10.57M0.76%+$6.27M
Woodward, Inc.(WWD)52,00068,400+16,400$7.08M$10.54M0.76%+$3.46M
Janus International Group, Inc.(JBI)528,400695,400+167,000$6.90M$10.52M0.76%+$3.63M
LiveRamp Holdings, Inc.(RAMP)139,000295,780+156,780$5.27M$10.20M0.74%+$4.94M
Veeco Instruments Inc.(VECO)240,000269,100+29,100$7.45M$9.46M0.68%+$2.02M
Primoris Services Corporation(PRIM)209,900209,9000$6.97M$8.94M0.65%+$1.96M
Deckers Outdoor Corporation(DECK)12,0459,420-2,625$8.05M$8.87M0.64%+$815.4K
Frontdoor, Inc.(FTDR)271,100263,300-7,800$9.55M$8.58M0.62%-$969.8K
American Superconductor375,800634,400+258,600$4.19M$8.57M0.62%+$4.38M
e.l.f. Beauty, Inc.(ELF)28,50043,720+15,220$4.11M$8.57M0.62%+$4.46M
MSA Safety Incorporated(MSA)28,10044,200+16,100$4.74M$8.56M0.62%+$3.81M
Grocery Outlet Holding Corp.(GO)139,200296,000+156,800$3.75M$8.52M0.62%+$4.77M
SPX Technologies, Inc.73,00069,000-4,000$7.37M$8.50M0.61%+$1.12M
Cabot Corporation(CBT)092,100+92,100$0$8.49M0.61%+$8.49M
Assurant, Inc.(AIZ)30,70045,000+14,300$5.17M$8.47M0.61%+$3.30M
Quaker Chemical Corporation(KWR)27,00040,500+13,500$5.76M$8.31M0.60%+$2.55M
OSI Systems, Inc.(OSIS)35,30055,300+20,000$4.56M$7.90M0.57%+$3.34M
Installed Building Products, Inc.(IBP)030,400+30,400$0$7.87M0.57%+$7.87M
EZCORP, Inc.(EZPW)655,500685,500+30,000$5.73M$7.77M0.56%+$2.04M
Aviat Networks, Inc.(AVNW)129,207199,307+70,100$4.22M$7.64M0.55%+$3.42M
Maximus, Inc.(MMS)60,40089,700+29,300$5.07M$7.53M0.54%+$2.46M
Wingstop Inc.(WING)15,90020,000+4,100$4.08M$7.33M0.53%+$3.25M
Catalyst Pharmaceuticals, Inc.348,600458,400+109,800$5.86M$7.31M0.53%+$1.45M
Preferred Bank(PFBC)89,60095,000+5,400$6.55M$7.29M0.53%+$747.9K
Playa Hotels & Resorts N.V.701,500751,500+50,000$6.07M$7.29M0.53%+$1.22M
ATI Inc.(ATI)102,500141,900+39,400$4.66M$7.26M0.53%+$2.60M
Photronics, Inc.(PLAB)247,500256,100+8,600$7.76M$7.25M0.52%-$511.3K
Weave Communications Inc(WEAV)609,400609,4000$6.99M$7.00M0.51%+$6.1K
Limbach Holdings, Inc.(LMB)99,494164,800+65,306$4.52M$6.83M0.49%+$2.30M
Credo Technology Group
ORDINARY SHARES
0321,900+321,900$0$6.82M0.49%+$6.82M
Interparfums, Inc.(IPAR)48,40048,300-100$6.97M$6.79M0.49%-$183.5K
RxSight, Inc.(RXST)83,100126,640+43,540$3.35M$6.53M0.47%+$3.18M
RPC, Inc.(RES)858,128838,476-19,652$6.25M$6.49M0.47%+$242.6K
Monarch Casino & Resort, Inc.(MCRI)58,50086,200+27,700$4.05M$6.46M0.47%+$2.42M
G-III Apparel Group, Ltd.(GIII)196,600220,900+24,300$6.68M$6.41M0.46%-$272.2K
Krystal Biotech, Inc.(KRYS)035,700+35,700$0$6.35M0.46%+$6.35M
Comfort Systems USA, Inc.(FIX)17,70019,800+2,100$3.64M$6.29M0.45%+$2.65M
PetlQ Inc304,400340,700+36,300$6.01M$6.23M0.45%+$216.1K
Modine Manufacturing Company(MOD)86,50064,500-22,000$5.16M$6.14M0.44%+$975.7K
Abercrombie & Fitch Co.55,00048,100-6,900$4.85M$6.03M0.44%+$1.18M
Trex Company, Inc.(TREX)40,10060,100+20,000$3.32M$5.99M0.43%+$2.68M
Artivion, Inc.(AORT)258,000282,400+24,400$4.61M$5.98M0.43%+$1.36M
Allegro MicroSystems, Inc.(ALGM)257,980221,280-36,700$7.81M$5.97M0.43%-$1.84M
Primo Water Corp.240,800323,500+82,700$3.62M$5.89M0.43%+$2.27M
Grand Canyon Education, Inc.(LOPE)26,80043,200+16,400$3.54M$5.88M0.43%+$2.35M
Upwork Inc.(UPWK)396,900469,200+72,300$5.90M$5.75M0.42%-$149.5K
Vital Energy, Inc.99,700109,400+9,700$4.54M$5.75M0.42%+$1.21M
Dynavax Technologies Corp.417,400462,700+45,300$5.84M$5.74M0.42%-$93.1K
Evolus, Inc.(EOLS)371,400397,300+25,900$3.91M$5.56M0.40%+$1.65M
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OBERWEIS ASSET MANAGEMENT INC/ — 13F Holdings — Q1 2024 | TickerTrail