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13F-HR filed by OBERWEIS ASSET MANAGEMENT INC/

OBERWEIS ASSET MANAGEMENT INC/ filed this 13F-HR for the quarter ended 2024-03-31, filed 2024-05-15, with 196 holding rows worth $1,382,671,873.

Accession
0001213900-24-043291
Filed
2024-05-15
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q1 2024

A holdings report, 196 entries on the cover page, a total value of $1,382,671,873 stated on the cover page (in dollars after the unit check, H1), rows summing to $1,382,671,873 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 SHS1,803,271$39,870,322dollars as filed
WEATHERFORD INTL PLC ORD SHSG48833118Stock222,100$25,634,782dollars as filed
AXCELIS TECHNOLOGIES INC054540208COM NEW209,339$23,345,485dollars as filed
ONTO INNOVATION INC COM683344105Stock106,930$19,362,884dollars as filed
ALPHATEC HLDGS INC02081G201COM NEW1,385,880$19,111,285dollars as filed
VERTIV HOLDINGS CO COM CL A92537N108Stock229,650$18,755,543dollars as filed
ADMA BIOLOGICS INC000899104COM2,790,700$18,418,620dollars as filed
AMPHASTAR PHARMACEUTICALS IN03209R103COM417,865$18,348,452dollars as filed
SKYWEST INC COM830879102Stock262,360$18,123,829dollars as filed
ENCOMPASS HEALTH CORP COM29261A100Stock204,136$16,857,558dollars as filed
SILICON MOTION TECHNOLOGY CORP SPONSORED ADR82706C108ADR217,400$16,726,756dollars as filed
OSHKOSH CORP COM688239201Stock133,827$16,689,608dollars as filed
CLEAN HARBORS INC COM184496107Stock81,295$16,365,496dollars as filed
AEROVIRONMENT INC COM008073108Stock101,570$15,568,650dollars as filed
CAMTEK LTD ORDM20791105Stock178,180$14,926,139dollars as filed
VERACYTE INC COM92337F107Stock671,700$14,884,872dollars as filed
ULTRA CLEAN HLDGS INC COM90385V107Stock319,600$14,682,424dollars as filed
TRANSMEDICS GROUP INC89377M109COM198,200$14,654,908dollars as filed
SHARKNINJA INC COM SHSG8068L108Stock235,200$14,650,608dollars as filed
ICF INTL INC44925C103COM96,900$14,596,047dollars as filed
ESAB CORPORATION29605J106COM129,200$14,285,644dollars as filed
PARSONS CORP DEL COM70202L102Stock172,140$14,279,013dollars as filed
CROCS INC COM227046109Stock95,400$13,718,520dollars as filed
NEXTPOWER INC CLASS A COM65290E101Stock235,700$13,262,839dollars as filed
UNIVERSAL DISPLAY CORP91347P105COM77,442$13,045,142dollars as filed
ZETA GLOBAL HOLDINGS CORP CL A98956A105Stock1,181,980$12,919,041dollars as filed
ACM RESH INC COM CL A00108J109Stock441,130$12,854,528dollars as filed
FLOWSERVE CORP34354P105COM274,378$12,533,571dollars as filed
HAEMONETICS CORP MASS COM405024100Stock143,695$12,264,368dollars as filed
ACADIA HEALTHCARE COMPANY INC COM00404A109Stock151,650$12,013,713dollars as filed
AEHR TEST SYSTEMS00760J108COMMON STOCK967,852$12,001,365dollars as filed
MERIT MED SYS INC COM589889104Stock156,490$11,854,118dollars as filed
APPLIED OPTOELECTRONICS INC03823U102COM849,615$11,775,664dollars as filed
CENTURY COMMUNITIES INC.156504300COM121,200$11,695,800dollars as filed
FIRSTCASH HOLDINGS INC33768G107COM91,700$11,695,418dollars as filed
ITRON INC COM465741106Stock125,600$11,620,512dollars as filed
NEOGENOMICS INC64049M209COM NEW737,200$11,588,784dollars as filed
BLUE BIRD CORP095306106COM299,100$11,467,494dollars as filed
ACI WORLDWIDE INC COM004498101Stock344,562$11,442,904dollars as filed
LIVANOVA PLCG5509L101SHS202,500$11,327,850dollars as filed
INTEGER HLDGS CORP45826H109COM96,700$11,282,956dollars as filed
AXONICS INC05465P101COM163,570$11,281,423dollars as filed
SILICON LABORATORIES INC COM826919102Stock78,000$11,210,160dollars as filed
EVOLENT HEALTH INC CL A30050B101Stock338,940$11,113,843dollars as filed
AZEK CO INC05478C105CL A220,900$11,093,598dollars as filed
FEDERAL SIGNAL CORP313855108COM127,830$10,848,932dollars as filed
INFORMATICA INC45674M101COM CL A309,000$10,815,000dollars as filed
FORMFACTOR INC COM346375108Stock236,700$10,800,621dollars as filed
CECO ENVIRONMENTAL CORP125141101COM463,400$10,667,468dollars as filed
STERLING INFRASTRUCTURE INC COM859241101Stock96,600$10,655,946dollars as filed
CLEAR SECURE INC18467V109COM CL A500,500$10,645,635dollars as filed
INTERNATIONAL SEAWAYS INC COMY41053102Stock198,700$10,570,840dollars as filed
WOODWARD INC COM980745103Stock68,400$10,541,808dollars as filed
JANUS INTERNATIONAL GROUP IN47103N106COMMON STOCK695,400$10,521,402dollars as filed
LIVERAMP HLDGS INC COM53815P108Stock295,780$10,204,410dollars as filed
VEECO INSTRS INC DEL COM922417100Stock269,100$9,464,247dollars as filed
PRIMORIS SVCS CORP COM74164F103Stock209,900$8,935,443dollars as filed
DECKERS OUTDOOR CORP243537107COM9,420$8,866,669dollars as filed
FRONTDOOR INC COM35905A109Stock263,300$8,578,314dollars as filed
AMERICAN SUPERCONDUCTOR CORP030111207SHS NEW634,400$8,570,744dollars as filed
ELFBEAUTYINC26856L103STOK43,720$8,570,432dollars as filed
MSA SAFETY INC COM553498106Stock44,200$8,556,678dollars as filed
GROCERY OUTLET HLDG CORP COM39874R101Stock296,000$8,518,880dollars as filed
SPX TECHNOLOGIES INC78473E103COM69,000$8,495,970dollars as filed
CABOT CORP127055101COM92,100$8,491,620dollars as filed
ASSURANT INC COM04621X108Stock45,000$8,470,800dollars as filed
QUAKER HOUGHTON747316107COM40,500$8,312,625dollars as filed
OSI SYSTEMS INC671044105COM55,300$7,897,946dollars as filed
INSTALLED BLDG PRODS INC45780R101COM30,400$7,865,392dollars as filed
EZCORP INC302301106CL A NON VTG685,500$7,766,715dollars as filed
AVIAT NETWORKS INC05366Y201COMMON STOCK199,307$7,641,430dollars as filed
MAXIMUS INC577933104COM89,700$7,525,830dollars as filed
WINGSTOP INC COM974155103Stock20,000$7,328,000dollars as filed
CATALYST PHARMACEUTICALS INC14888U101COM458,400$7,306,896dollars as filed
PREFERRED BK LOS ANGELES CA740367404COM NEW95,000$7,293,150dollars as filed
PLAYA HOTELS & RESORTS NVN70544106SHS751,500$7,289,550dollars as filed
ATI INC COM01741R102Stock141,900$7,261,023dollars as filed
PHOTRONICS INC719405102COM256,100$7,252,752dollars as filed
WEAVE COMMUNICATIONS INC94724R108COM609,400$6,995,912dollars as filed
LIMBACH HLDGS INC53263P105COM164,800$6,826,016dollars as filed
CREDO TECHNOLOGY GROUP HOLDING ORDINARY SHARESG25457105Stock321,900$6,821,061dollars as filed
INTERPARFUMS INC COM458334109Stock48,300$6,786,633dollars as filed
RXSIGHT INC78349D107COM126,640$6,532,091dollars as filed
RPC INC749660106COMMON STOCK838,476$6,489,803dollars as filed
MONARCH CASINO & RESORT INC609027107COM86,200$6,464,138dollars as filed
G III APPAREL GROUP LTD36237H101COM220,900$6,408,309dollars as filed
KRYSTAL BIOTECH INC COM501147102Stock35,700$6,352,101dollars as filed
COMFORT SYS USA INC COM199908104Stock19,800$6,290,658dollars as filed
PETIQ INC71639T106COMMON STOCK340,700$6,227,996dollars as filed
MODINE MFG CO COM607828100Stock64,500$6,139,755dollars as filed
ABERCROMBIE & FITCH CO CL A002896207Stock48,100$6,028,373dollars as filed
TREX CO INC89531P105COM60,100$5,994,975dollars as filed
ARTIVION INC228903100COM282,400$5,975,584dollars as filed
ALLEGRO MICROSYSTEMS INC01749D105COM221,280$5,965,709dollars as filed
PRIMO WATER CORPORATION74167P108COM323,500$5,890,935dollars as filed
GRAND CANYON ED INC COM38526M106Stock43,200$5,884,272dollars as filed
UPWORK INC91688F104COM469,200$5,752,392dollars as filed
Vital Energy Inc516806205Common Stock109,400$5,747,876dollars as filed
DYNAVAX TECHNOLOGIES CORP268158201COM NEW462,700$5,742,107dollars as filed
EVOLUS INC30052C107COM397,300$5,562,200dollars as filed
ONESPAWORLD HOLDINGS LIMITEDP73684113COM420,400$5,561,892dollars as filed
MATADOR RES CO COM576485205Stock82,400$5,501,848dollars as filed
LEMAITRE VASCULAR INC525558201COM80,001$5,308,895dollars as filed
VSE CORP COM918284100Stock66,300$5,304,000dollars as filed
BOOT BARN HLDGS INC099406100COM54,400$5,176,160dollars as filed
SIMPSON MFG INC829073105COM24,800$5,088,464dollars as filed
SI BONE INC825704109COM310,400$5,081,248dollars as filed
RUSH STREET INTERACTIVE INC782011100COM776,700$5,056,317dollars as filed
M/I HOMES INC55305B101COM36,200$4,933,698dollars as filed
Sun Country Airlines Holding866683105COM325,600$4,913,304dollars as filed
CLEARWATER PAPER CORP18538R103COM112,200$4,906,506dollars as filed
LIBERTY ENERGY INC53115L104COM CL A236,300$4,896,136dollars as filed
MAGNOLIA OIL & GAS CORP559663109CL A184,600$4,790,370dollars as filed
HURON CONSULTING GROUP INC447462102COM49,200$4,753,704dollars as filed
RAPID7 INC COM753422104Stock94,500$4,634,280dollars as filed
H&E EQUIPMENT SERVICES INC404030108COM69,500$4,460,510dollars as filed
HELIX ENERGY SOLUTIONS GRP INC COM42330P107Stock407,500$4,417,300dollars as filed
CARPENTER TECHNOLOGY CORP144285103COM61,800$4,413,756dollars as filed
CELLEBRITE DI LTD ORDINARY SHARESM2197Q107Stock397,900$4,408,732dollars as filed
OSCAR HEALTH INC687793109CL A295,000$4,386,650dollars as filed
LIGHT & WONDER INC COM80874P109Stock42,600$4,349,034dollars as filed
SKYWARD SPECIALTY INS GROUP830940102COM115,700$4,328,337dollars as filed
FIRST MERCHANTS CORP COM320817109Stock123,400$4,306,660dollars as filed
AAON INC000360206COM PAR $0.00448,400$4,264,040dollars as filed
GIBRALTAR INDS INC374689107COM52,800$4,251,984dollars as filed
BLACKBAUD INC COM09227Q100Stock57,300$4,248,222dollars as filed
EXLSERVICE HLDGS INC COM302081104Stock133,200$4,235,760dollars as filed
NOV INC62955J103COM216,900$4,233,888dollars as filed
GENTHERM INC37253A103COM73,500$4,232,130dollars as filed
HEALTHEQUITY INC COM42226A107Stock51,300$4,187,619dollars as filed
SPROUTS FMRS MKT INC COM85208M102Stock64,700$4,171,856dollars as filed
DUOLINGO INC CL A COM26603R106Stock18,900$4,168,962dollars as filed
DYCOM INDS INC COM267475101Stock29,000$4,162,370dollars as filed
STRIDE INC86333M108COM66,000$4,161,300dollars as filed
FABRINET SHSG3323L100Stock21,900$4,139,538dollars as filed
JELD-WEN HLDG INC47580P103COM192,600$4,088,898dollars as filed
CADENCE DESIGN SYSTEM INC COM127387108Stock13,100$4,077,768dollars as filed
VITA COCO CO INC92846Q107COM165,400$4,040,722dollars as filed
PRECISION DRILLING CORP COM NEW74022D407Stock59,700$4,017,213dollars as filed
EMPLOYERS HOLDINGS INC292218104COMMON STOCK86,100$3,908,079dollars as filed
NAVITAS SEMICONDUCTOR CORP COM63942X106Stock807,400$3,851,298dollars as filed
IMAX CORP45245E109COM236,200$3,819,354dollars as filed
HNI CORP COM404251100Stock83,400$3,763,842dollars as filed
BACKBLAZE INC A05637B105COMMON STOCK357,800$3,660,294dollars as filed
MANNKIND CORP COM NEW56400P706Stock798,800$3,618,564dollars as filed
PROTO LABS INC743713109COM97,500$3,485,625dollars as filed
ARLO TECHNOLOGIES INC04206A101COMMON STOCK273,400$3,458,510dollars as filed
MERCANTILE BANK CORP587376104COMMON STOCK89,328$3,438,231dollars as filed
1ST SOURCE CORP COM336901103Stock63,900$3,349,638dollars as filed
TRANSCAT INC893529107COM29,100$3,242,613dollars as filed
ANI PHARMACEUTICALS INC00182C103COM43,500$3,007,155dollars as filed
DORIAN LPG LTDY2106R110SHS USD75,500$2,903,730dollars as filed
HAWKINS INC420261109COM37,200$2,856,960dollars as filed
REV Group Inc749527107Common Stock126,300$2,789,967dollars as filed
ARIS WATER SOLUTIONS INC04041L106CLASS A COM195,200$2,762,080dollars as filed
ENERPAC TOOL GROUP CORP CL A COM292765104Stock77,300$2,756,518dollars as filed
GORMAN RUPP CO COM383082104Stock68,900$2,724,995dollars as filed
OXFORD INDS INC691497309COM23,400$2,630,160dollars as filed
Matrix Service Company576853105COM198,500$2,586,455dollars as filed
TAIWAN SEMICONDUCTOR MFG874039100SPONSORED ADS18,500$2,516,925dollars as filed
SWEETGREEN INC87043Q108COM CL A97,851$2,471,716dollars as filed
POWELL INDS INC739128106COM16,800$2,390,640dollars as filed
QUANTERIX CORP74766Q101COMMON STOCK99,700$2,348,932dollars as filed
AXOGEN INC05463X106COM286,400$2,311,248dollars as filed
Couchbase Inc22207T101Common Stock87,800$2,310,018dollars as filed
BJS RESTAURANTS INC09180C106COM63,600$2,301,048dollars as filed
LIQUIDIA CORPORATION COM NEW53635D202Stock150,000$2,212,500dollars as filed
AVEPOINT INC COM CL A053604104Stock266,800$2,113,056dollars as filed
SPY78462F103SHS3,576$1,870,317dollars as filed
PDD HOLDINGS INC SPONSORED ADS722304102ADR14,500$1,685,625dollars as filed
Microsoft Corp594918104COM2,725$1,146,462dollars as filed
TENCENT MUSIC ENTMT GROUP SPON ADS88034P109ADR80,000$895,200dollars as filed
ARCOS DORADOS HLDGS INCG0457F107SHS CLASS -A -78,600$874,032dollars as filed
JPMorgan Chase & Co46625H100COM3,804$762,021dollars as filed
LI AUTO INC SPONSORED ADS50202M102ADR23,000$696,440dollars as filed
MINISO GROUP HLDG LTD SPONSORED ADS66981J102ADR30,000$615,000dollars as filed
MAKEMYTRIP LIMITED MAURITIUS SHSV5633W109Stock8,600$611,030dollars as filed
Apple Inc037833100COM3,381$579,826dollars as filed
VTEX SHS CL AG9470A102Stock66,500$543,305dollars as filed
TRAVELERS COMPANIES INC COM89417E109Stock2,036$468,600dollars as filed
KANZHUN LIMITED48553T106SPONSORED ADS25,000$438,250dollars as filed
MasterCard, Inc57636Q104COM776$373,505dollars as filed
Johnson & Johnson478160104COM2,167$342,865dollars as filed
LEGEND BIOTECH CORP52490G102SPONSORED ADS6,000$336,540dollars as filed
Amgen Inc.031162100COM1,070$304,262dollars as filed
RESMED INC COM761152107Stock1,450$287,144dollars as filed
TAL ED GROUP SPONSORED ADS874080104ADR25,000$283,750dollars as filed
DESPEGAR COM CORPG27358103ORD SHS22,500$269,100dollars as filed
BBB Foods IncG0896C103COM11,000$261,580dollars as filed
CELSIUS HLDGS INC15118V207COM NEW3,000$248,760dollars as filed
AMER SPORTS INCG0260P102COMMON STOCK15,000$244,500dollars as filed
McDonalds Corporation580135101COM844$238,009dollars as filed
Merck & Co.,Inc.58933Y105COM1,730$228,274dollars as filed
TOYOTA MOTOR CORP ADS892331307ADR805$202,654dollars 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 0001213900-24-043291this filing2024-05-15acceptance time not in the bulk data set