Skip to content

13F-HR filed by OBERWEIS ASSET MANAGEMENT INC/

OBERWEIS ASSET MANAGEMENT INC/ filed this 13F-HR for the quarter ended 2023-12-31, filed 2024-02-14, with 192 holding rows worth $1,073,586,890.

Accession
0001213900-24-014028
Filed
2024-02-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2023

A holdings report, 192 entries on the cover page, a total value of $1,073,586,890 stated on the cover page (in dollars after the unit check, H1), rows summing to $1,073,586,890 with VALUE read as dollars as filed, 13F file number 028-04688. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
CONSTELLIUM SEF21107101CL A SHS1,850,371$36,933,405dollars as filed
AXCELIS TECHNOLOGIES INC054540208COM NEW245,329$31,816,718dollars as filed
AEHR TEST SYSTEMS00760J108COMMON STOCK1,091,202$28,949,589dollars as filed
ALPHATEC HLDGS INC02081G201COM NEW1,607,820$24,294,160dollars as filed
WEATHERFORD INTL PLC ORD SHSG48833118Stock240,060$23,485,070dollars as filed
AMPHASTAR PHARMACEUTICALS IN03209R103COM340,265$21,045,390dollars as filed
VERACYTE INC COM92337F107Stock656,810$18,068,843dollars as filed
APPLIED OPTOELECTRONICS INC03823U102COM891,915$17,231,798dollars as filed
TRANSMEDICS GROUP INC89377M109COM212,900$16,804,197dollars as filed
Perion Network LtdM78673114COM456,290$14,085,672dollars as filed
UNIVERSAL DISPLAY CORP91347P105COM66,542$12,726,865dollars as filed
ADMA BIOLOGICS INC000899104COM2,710,700$12,252,364dollars as filed
CAMTEK LTD ORDM20791105Stock174,480$12,105,422dollars as filed
VERTIV HOLDINGS CO COM CL A92537N108Stock233,672$11,223,263dollars as filed
AXONICS INC05465P101COM178,470$11,106,188dollars as filed
OSHKOSH CORP COM688239201Stock98,899$10,721,646dollars as filed
FLOWSERVE CORP34354P105COM245,271$10,110,081dollars as filed
CLEAN HARBORS INC COM184496107Stock57,055$9,956,668dollars as filed
ENCOMPASS HEALTH CORP COM29261A100Stock145,245$9,690,746dollars as filed
FRONTDOOR INC COM35905A109Stock271,100$9,548,142dollars as filed
HAEMONETICS CORP MASS COM405024100Stock105,880$9,053,799dollars as filed
ICF INTL INC44925C103COM66,100$8,863,349dollars as filed
AEROVIRONMENT INC COM008073108Stock69,800$8,797,592dollars as filed
CECO ENVIRONMENTAL CORP125141101COM426,700$8,653,476dollars as filed
ULTRA CLEAN HLDGS INC COM90385V107Stock247,100$8,435,994dollars as filed
PARSONS CORP DEL COM70202L102Stock133,000$8,340,430dollars as filed
BEL FUSE INC077347300CL B124,300$8,299,511dollars as filed
ZETA GLOBAL HOLDINGS CORP CL A98956A105Stock935,480$8,250,934dollars as filed
MERIT MED SYS INC COM589889104Stock107,090$8,134,556dollars as filed
POWER INTEGRATIONS INC COM739276103Stock98,195$8,062,792dollars as filed
DECKERS OUTDOOR CORP243537107COM12,045$8,051,239dollars as filed
FIRSTCASH HOLDINGS INC33768G107COM74,200$8,042,538dollars as filed
ALLEGRO MICROSYSTEMS INC01749D105COM257,980$7,809,055dollars as filed
PHOTRONICS INC719405102COM247,500$7,764,075dollars as filed
NAVITAS SEMICONDUCTOR CORP COM63942X106Stock959,900$7,746,393dollars as filed
STERLING INFRASTRUCTURE INC COM859241101Stock88,000$7,737,840dollars as filed
BLUE BIRD CORP095306106COM286,700$7,729,432dollars as filed
ACM RESH INC COM CL A00108J109Stock393,400$7,687,036dollars as filed
FEDERAL SIGNAL CORP313855108COM98,830$7,584,214dollars as filed
VEECO INSTRS INC DEL COM922417100Stock240,000$7,447,200dollars as filed
SPX TECHNOLOGIES INC78473E103COM73,000$7,373,730dollars as filed
EVOLENT HEALTH INC CL A30050B101Stock214,540$7,086,256dollars as filed
WOODWARD INC COM980745103Stock52,000$7,078,760dollars as filed
INTEGER HLDGS CORP45826H109COM71,000$7,034,680dollars as filed
ACADIA HEALTHCARE COMPANY INC COM00404A109Stock90,200$7,013,952dollars as filed
WEAVE COMMUNICATIONS INC94724R108COM609,400$6,989,818dollars as filed
SKYWEST INC COM830879102Stock133,700$6,979,140dollars as filed
PRIMORIS SVCS CORP COM74164F103Stock209,900$6,970,779dollars as filed
INTERPARFUMS INC COM458334109Stock48,400$6,970,084dollars as filed
JANUS INTERNATIONAL GROUP IN47103N106COMMON STOCK528,400$6,895,620dollars as filed
ESAB CORPORATION29605J106COM79,100$6,851,642dollars as filed
ONTO INNOVATION INC COM683344105Stock44,600$6,819,340dollars as filed
M/I HOMES INC55305B101COM48,800$6,721,712dollars as filed
G III APPAREL GROUP LTD36237H101COM196,600$6,680,468dollars as filed
FORMFACTOR INC COM346375108Stock159,200$6,640,232dollars as filed
PREFERRED BK LOS ANGELES CA740367404COM NEW89,600$6,545,280dollars as filed
HNI CORP COM404251100Stock154,800$6,475,284dollars as filed
NEOGENOMICS INC64049M209COM NEW392,700$6,353,886dollars as filed
MGP INGREDIENTS INC NEW55303J106COM64,450$6,349,614dollars as filed
FABRINET SHSG3323L100Stock33,200$6,318,956dollars as filed
CLEAR SECURE INC18467V109COM CL A303,500$6,267,275dollars as filed
RPC INC749660106COMMON STOCK858,128$6,247,170dollars as filed
THERMON GROUP HLDGS INC88362T103COM190,700$6,211,099dollars as filed
PLAYA HOTELS & RESORTS NVN70544106SHS701,500$6,067,975dollars as filed
SI BONE INC825704109COM287,100$6,026,229dollars as filed
PETIQ INC71639T106COMMON STOCK304,400$6,011,900dollars as filed
UPWORK INC91688F104COM396,900$5,901,903dollars as filed
CATALYST PHARMACEUTICALS INC14888U101COM348,600$5,859,966dollars as filed
DYNAVAX TECHNOLOGIES CORP268158201COM NEW417,400$5,835,252dollars as filed
QUAKER HOUGHTON747316107COM27,000$5,762,340dollars as filed
EZCORP INC302301106CL A NON VTG655,500$5,729,070dollars as filed
VISTEON CORP92839U206COM NEW43,770$5,466,873dollars as filed
SUPER MICRO COMPUTER INC86800U104COM19,100$5,429,366dollars as filed
BJS RESTAURANTS INC09180C106COM148,600$5,351,086dollars as filed
LIVERAMP HLDGS INC COM53815P108Stock139,000$5,265,320dollars as filed
H&E EQUIPMENT SERVICES INC404030108COM98,900$5,174,448dollars as filed
ASSURANT INC COM04621X108Stock30,700$5,172,643dollars as filed
INFORMATICA INC45674M101COM CL A182,100$5,169,819dollars as filed
MODINE MFG CO COM607828100Stock86,500$5,164,050dollars as filed
COVISTA INC00737L103COM86,500$5,099,175dollars as filed
ROVER GROUP INC77936F103COM CL A466,200$5,072,256dollars as filed
MAXIMUS INC577933104COM60,400$5,065,144dollars as filed
CARROLS RESTAURANT GROUP INC14574X104COM623,500$4,913,180dollars as filed
JELD-WEN HLDG INC47580P103COM260,200$4,912,576dollars as filed
HURON CONSULTING GROUP INC447462102COM47,500$4,883,000dollars as filed
ABERCROMBIE & FITCH CO CL A002896207Stock55,000$4,852,100dollars as filed
NEXTPOWER INC CLASS A COM65290E101Stock103,200$4,834,920dollars as filed
MSA SAFETY INC COM553498106Stock28,100$4,744,123dollars as filed
Sun Country Airlines Holding866683105COM297,700$4,682,821dollars as filed
SILICON MOTION TECHNOLOGY CORP SPONSORED ADR82706C108ADR76,400$4,681,028dollars as filed
V2X INC92242T101COM100,700$4,676,508dollars as filed
CROCS INC COM227046109Stock50,000$4,670,500dollars as filed
ATI INC COM01741R102Stock102,500$4,660,675dollars as filed
ARTIVION INC228903100COM258,000$4,613,040dollars as filed
PROTO LABS INC743713109COM117,400$4,573,904dollars as filed
OSI SYSTEMS INC671044105COM35,300$4,555,465dollars as filed
Vital Energy Inc516806205Common Stock99,700$4,535,353dollars as filed
LIMBACH HLDGS INC53263P105COM99,494$4,523,992dollars as filed
FASTLY INC31188V100CL A249,800$4,446,440dollars as filed
ACI WORLDWIDE INC COM004498101Stock144,262$4,414,417dollars as filed
INTERNATIONAL SEAWAYS INC COMY41053102Stock94,600$4,302,408dollars as filed
VSE CORP COM918284100Stock66,300$4,283,643dollars as filed
AVIAT NETWORKS INC05366Y201COMMON STOCK129,207$4,219,901dollars as filed
AMERICAN SUPERCONDUCTOR CORP030111207SHS NEW375,800$4,186,412dollars as filed
ELFBEAUTYINC26856L103STOK28,500$4,113,690dollars as filed
WINGSTOP INC COM974155103Stock15,900$4,079,622dollars as filed
MONARCH CASINO & RESORT INC609027107COM58,500$4,045,275dollars as filed
BOOT BARN HLDGS INC099406100COM51,600$3,960,816dollars as filed
EVOLUS INC30052C107COM371,400$3,910,842dollars as filed
LIVANOVA PLCG5509L101SHS74,200$3,839,108dollars as filed
OPTION CARE HEALTH INC COM NEW68404L201Stock113,700$3,830,553dollars as filed
CLEARWATER PAPER CORP18538R103COM103,900$3,752,868dollars as filed
GROCERY OUTLET HLDG CORP COM39874R101Stock139,200$3,752,832dollars as filed
LEMAITRE VASCULAR INC525558201COM65,300$3,706,428dollars as filed
HELIX ENERGY SOLUTIONS GRP INC COM42330P107Stock357,400$3,674,072dollars as filed
PDD HOLDINGS INC SPONSORED ADS722304102ADR25,000$3,657,750dollars as filed
COMFORT SYS USA INC COM199908104Stock17,700$3,640,359dollars as filed
PRIMO WATER CORPORATION74167P108COM240,800$3,624,040dollars as filed
HALOZYME THERAPEUTICS INC COM40637H109Stock96,300$3,559,248dollars as filed
GRAND CANYON ED INC COM38526M106Stock26,800$3,538,672dollars as filed
ONESPAWORLD HOLDINGS LIMITEDP73684113COM248,400$3,502,440dollars as filed
QUALYS INC COM74758T303Stock17,600$3,454,528dollars as filed
MERCANTILE BANK CORP587376104COMMON STOCK85,315$3,445,012dollars as filed
CADENCE DESIGN SYSTEM INC COM127387108Stock12,600$3,431,862dollars as filed
GIBRALTAR INDS INC374689107COM43,300$3,419,834dollars as filed
CADRE HLDGS INC COM12763L105Stock102,400$3,367,936dollars as filed
RXSIGHT INC78349D107COM83,100$3,350,592dollars as filed
SIMPSON MFG INC829073105COM16,800$3,326,064dollars as filed
TREX CO INC89531P105COM40,100$3,319,879dollars as filed
1ST SOURCE CORP COM336901103Stock60,000$3,297,000dollars as filed
EMPLOYERS HOLDINGS INC292218104COMMON STOCK82,500$3,250,500dollars as filed
PRECISION DRILLING CORP COM NEW74022D407Stock59,700$3,241,113dollars as filed
NOV INC62955J103COM156,900$3,181,932dollars as filed
OXFORD INDS INC691497309COM31,500$3,150,000dollars as filed
MCGRATH RENTCORP580589109COM26,100$3,122,082dollars as filed
HERITAGE FINANCIAL CORP42722X106COMMON STOCK140,400$3,003,156dollars as filed
MATADOR RES CO COM576485205Stock52,800$3,002,208dollars as filed
FIRST MERCHANTS CORP COM320817109Stock79,200$2,936,736dollars as filed
DORIAN LPG LTDY2106R110SHS USD65,500$2,873,485dollars as filed
SKYWARD SPECIALTY INS GROUP830940102COM81,800$2,771,384dollars as filed
REV Group Inc749527107Common Stock151,700$2,756,389dollars as filed
RAPID7 INC COM753422104Stock48,200$2,752,220dollars as filed
VITA COCO CO INC92846Q107COM106,600$2,734,290dollars as filed
CALERES INC129500104COM88,400$2,716,532dollars as filed
AAON INC000360206COM PAR $0.00436,300$2,681,481dollars as filed
EPLUS INC294268107COM33,300$2,658,672dollars as filed
DYCOM INDS INC COM267475101Stock23,000$2,647,070dollars as filed
HAWKINS INC420261109COM37,500$2,640,750dollars as filed
MANNKIND CORP COM NEW56400P706Stock722,800$2,630,992dollars as filed
BLACKBAUD INC COM09227Q100Stock30,100$2,609,670dollars as filed
HEALTHEQUITY INC COM42226A107Stock38,700$2,565,810dollars as filed
POWELL INDS INC739128106COM28,600$2,528,240dollars as filed
CARPENTER TECHNOLOGY CORP144285103COM35,700$2,527,560dollars as filed
STRIDE INC86333M108COM42,500$2,523,225dollars as filed
MAGNOLIA OIL & GAS CORP559663109CL A117,200$2,495,188dollars as filed
LIBERTY ENERGY INC53115L104COM CL A137,400$2,492,436dollars as filed
LIGHT & WONDER INC COM80874P109Stock30,100$2,471,511dollars as filed
ATRICURE INC04963C209COM69,100$2,466,179dollars as filed
HIBBETT INC428567101COM34,100$2,455,882dollars as filed
GORMAN RUPP CO COM383082104Stock68,900$2,448,017dollars as filed
QUANTERIX CORP74766Q101COMMON STOCK87,800$2,400,452dollars as filed
ANI PHARMACEUTICALS INC00182C103COM43,500$2,398,590dollars as filed
TRANSCAT INC893529107COM21,800$2,383,394dollars as filed
MIRUM PHARMACEUTICALS INC604749101COM77,400$2,284,848dollars as filed
PDF SOLUTIONS INC693282105COMMON STOCK69,500$2,233,730dollars as filed
ENERPAC TOOL GROUP CORP CL A COM292765104Stock71,300$2,216,717dollars as filed
AVEPOINT INC COM CL A053604104Stock241,100$1,979,431dollars as filed
TAIWAN SEMICONDUCTOR MFG874039100SPONSORED ADS17,000$1,768,000dollars as filed
SPY78462F103SHS3,588$1,705,626dollars as filed
MINISO GROUP HLDG LTD SPONSORED ADS66981J102ADR80,400$1,640,160dollars as filed
LI AUTO INC SPONSORED ADS50202M102ADR33,000$1,235,190dollars as filed
FULL HSE RESORTS INC359678109COM223,143$1,198,278dollars as filed
Microsoft Corp594918104COM2,735$1,028,469dollars as filed
LEGEND BIOTECH CORP52490G102SPONSORED ADS16,000$962,720dollars as filed
TAL ED GROUP SPONSORED ADS874080104ADR55,000$694,650dollars as filed
Apple Inc037833100COM3,381$650,917dollars as filed
JPMorgan Chase & Co46625H100COM3,802$646,723dollars as filed
COMSTOCK RES INC COM205768302Stock72,295$639,809dollars as filed
TRAVELERS COMPANIES INC COM89417E109Stock2,066$393,581dollars as filed
ARCOS DORADOS HLDGS INCG0457F107SHS CLASS -A -30,000$380,700dollars as filed
Johnson & Johnson478160104COM2,165$339,292dollars as filed
MasterCard, Inc57636Q104COM775$330,737dollars as filed
VTEX SHS CL AG9470A102Stock46,900$322,672dollars as filed
ISHARES TR464287648RUS 2000 GRW ETF1,225$308,970dollars as filed
Amgen Inc.031162100COM1,069$308,012dollars as filed
McDonalds Corporation580135101COM843$249,935dollars as filed
RESMED INC COM761152107Stock1,450$249,429dollars as filed
DESPEGAR COM CORPG27358103ORD SHS22,500$212,850dollars as filed
IQIYI INC SPONSORED ADS46267X108ADR20,000$97,600dollars as filed
DADA NEXUS LTD NPV ADR23344D108ADS22,800$75,696dollars as filed
Xenacare Hldgs, Inc.98401A106COM140,000$0dollars as filedValue filed as zero, left out of ratios.
AMR Corp Escrow001ESC102COM18,000$0dollars as filedValue filed as zero, left out of ratios.

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001213900-24-014028this filing2024-02-14acceptance time not in the bulk data set