Fund HoldingsOBERWEIS ASSET MANAGEMENT INC/

Total Portfolio Value
$1.07B
Total Bought
$357.09M
Total Sold
$209.49M
Net Transaction
+$147.60M
Filing Period:
Securities
SharesValue ($K)
Q3 2023
Q4 2023
Change
Q3 2023
Q4 2023
Weight (%)
Change
Amphastar Pharmaceuticals, Inc(AMPH)0340,265+340,265021,0451.96%+21,045
Applied Optoelectronics Inc.(AAOI)468,415891,915+423,5005,13917,2321.61%+12,093
TransMedics Group, Inc.(TMDX)0212,900+212,900016,8041.57%+16,804
Alphatec Hldgs Inc.(ATEC)01,607,820+1,607,820024,2942.26%+24,294
Integer Holdings Corporation(ITGR)071,000+71,00007,0350.66%+7,035
Skywest Inc(SKYW)0133,700+133,70006,9790.65%+6,979
ESAB Corporation(ESAB)079,100+79,10006,8520.64%+6,852
Clear Secure, Inc.(YOU)0303,500+303,50006,2670.58%+6,267
Thermon Group Hldgs Inc.0190,700+190,70006,2110.58%+6,211
Weatherford International PLC(WFRD)196,920240,060+43,14017,78823,4852.19%+5,697
Oshkosh Corp.(OSK)54,13698,899+44,7635,16610,7221.00%+5,555
Liveramp Hldgs, Inc.(RAMP)0139,000+139,00005,2650.49%+5,265
Assurant, Inc.(AIZ)030,700+30,70005,1730.48%+5,173
Informatica Corp.0182,100+182,10005,1700.48%+5,170
Adtalem Global Education Inc.(CVSA)086,500+86,50005,0990.47%+5,099
Carrols Restaurant Group, Inc.0623,500+623,50004,9130.46%+4,913
ADMA Biologics, Inc.2,078,4002,710,700+632,3007,44112,2521.14%+4,812
MSA Safety Inc(MSA)028,100+28,10004,7440.44%+4,744
Veracyte, Inc.(VCYT)597,540656,810+59,27013,34318,0691.68%+4,726
Silicon Motion Techn ADR(SIMO)076,400+76,40004,6810.44%+4,681
Proto Labs Inc.(PRLB)0117,400+117,40004,5740.43%+4,574
Vital Energy, Inc.099,700+99,70004,5350.42%+4,535
Limbach Hldgs, Inc.(LMB)099,494+99,49404,5240.42%+4,524
Frontdoor, Inc.(FTDR)164,700271,100+106,4005,0389,5480.89%+4,510
ACI Worldwide Inc.0144,262+144,26204,4140.41%+4,414
Upwork, Inc.(UPWK)143,400396,900+253,5001,6295,9020.55%+4,273
American Superconductor0375,800+375,80004,1860.39%+4,186
Evolus, Inc.0371,400+371,40003,9110.36%+3,911
LivaNova Plc(LIVN)074,200+74,20003,8390.36%+3,839
Grand Canyon Education, Inc.(LOPE)026,800+26,80003,5390.33%+3,539
OneSpaWorld Holdings Limited
COM
0248,400+248,40003,5020.33%+3,502
RxSight, Inc.083,100+83,10003,3510.31%+3,351
Precision Drilling Corp.(PDS)059,700+59,70003,2410.30%+3,241
Photronics, Inc.(PLAB)0247,500+247,50007,7640.72%+7,764
G-III Apparel Group Ltd.(GIII)144,000196,600+52,6003,5886,6800.62%+3,092
M/I Homes, Inc.(MHO)048,800+48,80006,7220.63%+6,722
Universal Display Corp.(OLED)62,01566,542+4,5279,73612,7271.19%+2,991
Dorian LPG Ltd.(LPG)065,500+65,50002,8730.27%+2,873
Janus International Group, Inc378,600528,400+149,8004,0516,8960.64%+2,845
Skyward Specialty Ins Group(SKWD)081,800+81,80002,7710.26%+2,771
Rev Group, Inc.0151,700+151,70002,7560.26%+2,756
NeoGenomics, Inc.(NEO)0392,700+392,70006,3540.59%+6,354
The Vita Coco Co., Inc.(COCO)0106,600+106,60002,7340.25%+2,734
Weave Communications, Inc.0609,400+609,40006,9900.65%+6,990
BJ's Restaurants, Inc.(BJRI)112,200148,600+36,4002,6325,3510.50%+2,719
AAON, Inc.036,300+36,30002,6810.25%+2,681
Dycom Industries, Inc.(DY)023,000+23,00002,6470.25%+2,647
Fabrinet(FN)22,20033,200+11,0003,6996,3190.59%+2,620
Zeta Global Holdings Corp.(ZETA)674,700935,480+260,7805,6348,2510.77%+2,617
Blackbaud(BLKB)030,100+30,10002,6100.24%+2,610
HealthEquity Inc.(HQY)038,700+38,70002,5660.24%+2,566
Carpenter Technology Corp.(CRS)035,700+35,70002,5280.24%+2,528
Stride, Inc.(LRN)042,500+42,50002,5230.24%+2,523
Rover Group, Inc.408,000466,200+58,2002,5545,0720.47%+2,518
Bel Fuse, Inc.0124,300+124,30008,3000.77%+8,300
Light & Wonder Inc.(LNWO)030,100+30,10002,4720.23%+2,472
Hibbett, Inc.034,100+34,10002,4560.23%+2,456
Catalyst Pharmaceuticals, Inc.(CPRX)293,600348,600+55,0003,4325,8600.55%+2,428
Transcat, Inc.021,800+21,80002,3830.22%+2,383
Clean Harbors, Inc.(CLH)057,055+57,05509,9570.93%+9,957
Mirum Pharmaceuticals, Inc.(MIRM)077,400+77,40002,2850.21%+2,285
Enerpac Tool Group Corp.(EPAC)071,300+71,30002,2170.21%+2,217
Encompass Health Corporation(EHC)111,600145,245+33,6457,4959,6910.90%+2,196
Federal Signal Corp.(FSS)098,830+98,83007,5840.71%+7,584
Haemonetics Corp.(HAE)77,400105,880+28,4806,9339,0540.84%+2,120
Cadre Hldgs, Inc.(CDRE)47,300102,400+55,1001,2613,3680.31%+2,107
Axonics, Inc.161,620178,470+16,8509,07011,1061.03%+2,036
CECO Environmental Corp.(CECO)416,700426,700+10,0006,6558,6530.81%+1,999
Ultra Clean Holdings(UCTT)0247,100+247,10008,4360.79%+8,436
VSE Corp.(VSEC)066,300+66,30004,2840.40%+4,284
FirstCash Holdings, Inc(FCFS)61,70074,200+12,5006,1938,0430.75%+1,849
SPX Technologies, Inc.68,00073,000+5,0005,5357,3740.69%+1,839
Camtek, Ltd.(CAMT)166,380174,480+8,10010,35912,1051.13%+1,747
Flowserve Corporation(FLS)210,840245,271+34,4318,38510,1100.94%+1,725
e.l.f. Beauty, Inc.(ELF)21,80028,500+6,7002,3944,1140.38%+1,719
PetlQ Inc219,600304,400+84,8004,3266,0120.56%+1,686
Quaker Chemical Corporation(KWR)027,000+27,00005,7620.54%+5,762
Halozyme Therapeutics, Inc.(HALO)50,50096,300+45,8001,9293,5590.33%+1,630
JELD-WEN Holding, Inc.0260,200+260,20004,9130.46%+4,913
Onto Innovation, Inc.(ONTO)41,10044,600+3,5005,2416,8190.64%+1,578
Osi Systems, Inc.(OSIS)25,40035,300+9,9002,9984,5550.42%+1,557
Acadia Healthcare Co., Inc.(ACHC)77,80090,200+12,4005,4707,0140.65%+1,544
Merit Medical System Inc(MMSI)0107,090+107,09008,1350.76%+8,135
Wingstop, Inc.(WING)14,20015,900+1,7002,5544,0800.38%+1,526
ACM Research, Inc. Class A(ACMR)341,800393,400+51,6006,1887,6870.72%+1,499
Trex Company, Inc.(TREX)30,40040,100+9,7001,8743,3200.31%+1,446
Navitas Semiconductor Corp.(NVTS)0959,900+959,90007,7460.72%+7,746
Preferred Bank(PFBC)82,60089,600+7,0005,1426,5450.61%+1,403
Inter Parfums(IPAR)41,60048,400+6,8005,5896,9700.65%+1,382
Modine Mfg Co Com(MOD)086,500+86,50005,1640.48%+5,164
Comfort Systems USA Inc.(FIX)017,700+17,70003,6400.34%+3,640
PDD Holdings Inc.(PDD)25,00025,00002,4523,6580.34%+1,206
Parsons Corp.(PSN)131,300133,000+1,7007,1368,3400.78%+1,204
H&E Equipment Services, Inc.098,900+98,90005,1740.48%+5,174
Blue Bird Corporation0286,700+286,70007,7290.72%+7,729
Fastly, Inc.(FSLY)170,300249,800+79,5003,2654,4460.41%+1,182
Primoris Services Corp.(PRIM)178,600209,900+31,3005,8466,9710.65%+1,125
Super Micro Computer Inc.(SMCI)15,70019,100+3,4004,3055,4290.51%+1,124
Simpson Manufacturing(SSD)016,800+16,80003,3260.31%+3,326
Aerovironment, Inc.69,10069,800+7007,7078,7980.82%+1,091
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