13F-HR filed by OBERWEIS ASSET MANAGEMENT INC/
OBERWEIS ASSET MANAGEMENT INC/ filed this 13F-HR for the quarter ended 2023-06-30, filed 2023-08-14, with 187 holding rows worth $822,841,024.
- Accession
- 0001213900-23-066668
- Filer
- CIK 937886
- Filed
- 2023-08-14
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q2 2023
A holdings report, 187 entries on the cover page, a total value of $822,841,024 stated on the cover page (in dollars after the unit check, H1), rows summing to $822,841,024 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 filed | CUSIP | Class | Amount | Value | Value read as | Type |
|---|---|---|---|---|---|---|
| CONSTELLIUM SE | F21107101 | CL A SHS | 2,799,271 | $48,147,461 | dollars as filed | |
| AXCELIS TECHNOLOGIES INC | 054540208 | COM NEW | 240,399 | $44,072,349 | dollars as filed | |
| AEHR TEST SYSTEMS | 00760J108 | COMMON STOCK | 873,108 | $36,015,705 | dollars as filed | |
| ALPHATEC HLDGS INC | 02081G201 | COM NEW | 980,470 | $17,628,851 | dollars as filed | |
| IMPINJ INC | 453204109 | COM | 179,145 | $16,060,349 | dollars as filed | |
| LANTHEUS HLDGS INC | 516544103 | COM | 166,180 | $13,945,826 | dollars as filed | |
| Perion Network Ltd | M78673114 | COM | 426,250 | $13,073,088 | dollars as filed | |
| VERACYTE INC COM | 92337F107 | Stock | 482,310 | $12,284,436 | dollars as filed | |
| DECKERS OUTDOOR CORP | 243537107 | COM | 23,120 | $12,199,499 | dollars as filed | |
| CROCS INC COM | 227046109 | Stock | 105,500 | $11,862,420 | dollars as filed | |
| TRANSMEDICS GROUP INC | 89377M109 | COM | 127,000 | $10,665,460 | dollars as filed | |
| ICF INTL INC | 44925C103 | COM | 80,200 | $9,976,078 | dollars as filed | |
| BELDEN INC COM | 077454106 | Stock | 98,755 | $9,445,959 | dollars as filed | |
| VERITIV CORP | 923454102 | COM | 72,790 | $9,143,152 | dollars as filed | |
| ALLEGRO MICROSYSTEMS INC | 01749D105 | COM | 196,040 | $8,849,246 | dollars as filed | |
| EXTREME NETWORKS INC | 30226D106 | COM | 337,900 | $8,802,295 | dollars as filed | |
| AMPHASTAR PHARMACEUTICALS IN | 03209R103 | COM | 147,800 | $8,494,066 | dollars as filed | |
| CLEAN HARBORS INC COM | 184496107 | Stock | 45,105 | $7,416,615 | dollars as filed | |
| TACTILE SYSTEMS TECHNOLOGY I | 87357P100 | COMMON STOCK | 294,950 | $7,353,104 | dollars as filed | |
| BEL FUSE INC | 077347300 | CL B | 121,500 | $6,975,315 | dollars as filed | |
| EVOLENT HEALTH INC CL A | 30050B101 | Stock | 227,910 | $6,905,673 | dollars as filed | |
| MODEL N INC | 607525102 | COM | 194,818 | $6,888,764 | dollars as filed | |
| VISTEON CORP | 92839U206 | COM NEW | 47,760 | $6,858,814 | dollars as filed | |
| BLUE BIRD CORP | 095306106 | COM | 301,300 | $6,773,224 | dollars as filed | |
| NAVITAS SEMICONDUCTOR CORP COM | 63942X106 | Stock | 640,000 | $6,745,600 | dollars as filed | |
| ULTRA CLEAN HLDGS INC COM | 90385V107 | Stock | 170,900 | $6,572,814 | dollars as filed | |
| POWER INTEGRATIONS INC COM | 739276103 | Stock | 69,270 | $6,557,791 | dollars as filed | |
| MERIT MED SYS INC COM | 589889104 | Stock | 78,160 | $6,537,302 | dollars as filed | |
| TREACE MED CONCEPTS INC | 89455T109 | COM | 251,500 | $6,433,370 | dollars as filed | |
| AXONICS INC | 05465P101 | COM | 125,440 | $6,330,957 | dollars as filed | |
| ONESPAN INC | 68287N100 | COM | 416,845 | $6,185,980 | dollars as filed | |
| ADMA BIOLOGICS INC | 000899104 | COM | 1,668,700 | $6,157,503 | dollars as filed | |
| VERTIV HOLDINGS CO COM CL A | 92537N108 | Stock | 248,340 | $6,151,382 | dollars as filed | |
| STERLING INFRASTRUCTURE INC COM | 859241101 | Stock | 106,700 | $5,953,860 | dollars as filed | |
| SI BONE INC | 825704109 | COM | 220,200 | $5,940,996 | dollars as filed | |
| UNITED PARKS & RESORTS INC | 81282V100 | COM | 99,600 | $5,578,596 | dollars as filed | |
| CIRCOR INTL INC | 17273K109 | COM | 95,000 | $5,362,750 | dollars as filed | |
| PLAYA HOTELS & RESORTS NV | N70544106 | SHS | 655,300 | $5,334,142 | dollars as filed | |
| ENCOMPASS HEALTH CORP COM | 29261A100 | Stock | 78,100 | $5,288,151 | dollars as filed | |
| CAMTEK LTD ORD | M20791105 | Stock | 148,202 | $5,280,437 | dollars as filed | |
| CECO ENVIRONMENTAL CORP | 125141101 | COM | 392,600 | $5,245,136 | dollars as filed | |
| WEATHERFORD INTL PLC ORD SHS | G48833118 | Stock | 78,580 | $5,219,284 | dollars as filed | |
| VEECO INSTRS INC DEL COM | 922417100 | Stock | 202,500 | $5,200,200 | dollars as filed | |
| INMODE LTD SHS | M5425M103 | Stock | 137,100 | $5,120,685 | dollars as filed | |
| CHEFS WHSE INC | 163086101 | COM | 141,500 | $5,060,040 | dollars as filed | |
| CIENA CORP COM NEW | 171779309 | Stock | 118,305 | $5,026,779 | dollars as filed | |
| PHOTRONICS INC | 719405102 | COM | 194,700 | $5,021,313 | dollars as filed | |
| FORMFACTOR INC COM | 346375108 | Stock | 143,000 | $4,893,460 | dollars as filed | |
| V2X INC | 92242T101 | COM | 97,800 | $4,846,968 | dollars as filed | |
| Sun Country Airlines Holding | 866683105 | COM | 213,200 | $4,792,736 | dollars as filed | |
| MGP INGREDIENTS INC NEW | 55303J106 | COM | 44,850 | $4,766,658 | dollars as filed | |
| HARMONIC INC | 413160102 | COM | 294,300 | $4,758,831 | dollars as filed | |
| DIGI INTL INC | 253798102 | COM | 120,600 | $4,750,434 | dollars as filed | |
| FEDERAL SIGNAL CORP | 313855108 | COM | 73,900 | $4,731,817 | dollars as filed | |
| ATI INC COM | 01741R102 | Stock | 106,800 | $4,723,764 | dollars as filed | |
| RPC INC | 749660106 | COMMON STOCK | 657,033 | $4,697,784 | dollars as filed | |
| MAGNITE INC COM | 55955D100 | Stock | 340,700 | $4,650,555 | dollars as filed | |
| HEXCEL CORP NEW | 428291108 | COM | 59,000 | $4,485,180 | dollars as filed | |
| SP PLUS CORP | 78469C103 | COM | 113,700 | $4,446,807 | dollars as filed | |
| FLOWSERVE CORP | 34354P105 | COM | 119,200 | $4,428,280 | dollars as filed | |
| LITTELFUSE INC COM | 537008104 | Stock | 15,200 | $4,427,912 | dollars as filed | |
| WOODWARD INC COM | 980745103 | Stock | 37,100 | $4,411,561 | dollars as filed | |
| WEAVE COMMUNICATIONS INC | 94724R108 | COM | 394,500 | $4,382,895 | dollars as filed | |
| GRANITE CONSTR INC COM | 387328107 | Stock | 110,100 | $4,379,778 | dollars as filed | |
| ALLISON TRANSMISSION HLDGS I | 01973R101 | COM | 77,400 | $4,370,004 | dollars as filed | |
| PARSONS CORP DEL COM | 70202L102 | Stock | 90,400 | $4,351,856 | dollars as filed | |
| EZCORP INC | 302301106 | CL A NON VTG | 506,200 | $4,241,956 | dollars as filed | |
| FRANKLIN ELEC INC COM | 353514102 | Stock | 40,900 | $4,208,610 | dollars as filed | |
| CABOT CORP | 127055101 | COM | 62,405 | $4,174,286 | dollars as filed | |
| CADENCE DESIGN SYSTEM INC COM | 127387108 | Stock | 17,600 | $4,127,552 | dollars as filed | |
| INTERPARFUMS INC COM | 458334109 | Stock | 30,400 | $4,110,992 | dollars as filed | |
| ACADIA HEALTHCARE COMPANY INC COM | 00404A109 | Stock | 51,400 | $4,093,496 | dollars as filed | |
| QUAKER HOUGHTON | 747316107 | COM | 20,800 | $4,053,920 | dollars as filed | |
| ZETA GLOBAL HOLDINGS CORP CL A | 98956A105 | Stock | 474,500 | $4,052,230 | dollars as filed | |
| HAEMONETICS CORP MASS COM | 405024100 | Stock | 47,500 | $4,044,150 | dollars as filed | |
| MAXIMUS INC | 577933104 | COM | 47,800 | $4,039,578 | dollars as filed | |
| SILICON LABORATORIES INC COM | 826919102 | Stock | 25,510 | $4,023,947 | dollars as filed | |
| ALLEGIANT TRAVEL CO | 01748X102 | COM | 30,400 | $3,838,912 | dollars as filed | |
| MODINE MFG CO COM | 607828100 | Stock | 115,000 | $3,797,300 | dollars as filed | |
| H&E EQUIPMENT SERVICES INC | 404030108 | COM | 82,100 | $3,756,075 | dollars as filed | |
| FRONTDOOR INC COM | 35905A109 | Stock | 117,700 | $3,754,630 | dollars as filed | |
| FIRSTCASH HOLDINGS INC | 33768G107 | COM | 40,100 | $3,742,533 | dollars as filed | |
| ACM RESH INC COM CL A | 00108J109 | Stock | 285,600 | $3,735,648 | dollars as filed | |
| HAYNES INTL INC | 420877201 | COM NEW | 72,600 | $3,689,532 | dollars as filed | |
| AVIAT NETWORKS INC | 05366Y201 | COMMON STOCK | 109,507 | $3,654,249 | dollars as filed | |
| MACOM TECH SOLUTIONS HLDGS INC COM | 55405Y100 | Stock | 55,700 | $3,650,021 | dollars as filed | |
| ARTIVION INC | 228903100 | COM | 211,300 | $3,632,247 | dollars as filed | |
| OPTION CARE HEALTH INC COM NEW | 68404L201 | Stock | 111,000 | $3,606,390 | dollars as filed | |
| SUNOPTA INC | 8676EP108 | COM | 537,700 | $3,597,213 | dollars as filed | |
| O-I GLASS INC | 67098H104 | COM | 168,100 | $3,585,573 | dollars as filed | |
| SHOALS TECHNOLOGIES GROUP INC CL A | 82489W107 | Stock | 139,600 | $3,568,176 | dollars as filed | |
| LSI INDUSTRIES INC | 50216C108 | COMMON STOCK | 283,700 | $3,563,272 | dollars as filed | |
| EMPLOYERS HOLDINGS INC | 292218104 | COMMON STOCK | 95,100 | $3,557,691 | dollars as filed | |
| JELD-WEN HLDG INC | 47580P103 | COM | 201,900 | $3,541,326 | dollars as filed | |
| APPLIED INDL TECHNOLOGIES INC COM | 03820C105 | Stock | 24,400 | $3,533,852 | dollars as filed | |
| SPX TECHNOLOGIES INC | 78473E103 | COM | 41,500 | $3,526,255 | dollars as filed | |
| M/I HOMES INC | 55305B101 | COM | 40,400 | $3,522,476 | dollars as filed | |
| NEOGENOMICS INC | 64049M209 | COM NEW | 213,000 | $3,422,910 | dollars as filed | |
| ALIGHT INC | 01626W101 | COM CL A | 361,300 | $3,338,412 | dollars as filed | |
| EVERI HLDGS INC | 30034T103 | COM | 229,200 | $3,314,232 | dollars as filed | |
| SUPER MICRO COMPUTER INC | 86800U104 | COM | 13,100 | $3,265,175 | dollars as filed | |
| BOOT BARN HLDGS INC | 099406100 | COM | 37,800 | $3,201,282 | dollars as filed | |
| EARTHSTONE ENERGY INC | 27032D304 | COMMON STOCK | 223,000 | $3,186,670 | dollars as filed | |
| MONARCH CASINO & RESORT INC | 609027107 | COM | 45,200 | $3,184,340 | dollars as filed | |
| DYNAVAX TECHNOLOGIES CORP | 268158201 | COM NEW | 245,400 | $3,170,568 | dollars as filed | |
| PREFERRED BK LOS ANGELES CA | 740367404 | COM NEW | 57,000 | $3,134,430 | dollars as filed | |
| A10 NETWORKS INC | 002121101 | COM | 208,600 | $3,043,474 | dollars as filed | |
| UNUM GROUP COM | 91529Y106 | Stock | 62,600 | $2,986,020 | dollars as filed | |
| NEW RELIC INC | 64829B100 | COMMON STOCK | 45,300 | $2,964,432 | dollars as filed | |
| ABM INDS INC | 000957100 | COM | 68,500 | $2,921,525 | dollars as filed | |
| INTERNATIONAL SEAWAYS INC COM | Y41053102 | Stock | 74,800 | $2,860,352 | dollars as filed | |
| PDC ENERGY INC | 69327R101 | COM | 39,604 | $2,817,454 | dollars as filed | |
| OXFORD INDS INC | 691497309 | COM | 27,600 | $2,716,392 | dollars as filed | |
| PATTERSON-UTI ENERGY INC | 703481101 | COM | 226,500 | $2,711,205 | dollars as filed | |
| INTERNATIONAL MONEY EXPRESS | 46005L101 | COM | 108,300 | $2,656,599 | dollars as filed | |
| VSE CORP COM | 918284100 | Stock | 47,700 | $2,608,713 | dollars as filed | |
| SHOCKWAVE MED INC | 82489T104 | COM | 9,050 | $2,582,961 | dollars as filed | |
| ALTERYX, INC (CLASS A) | 02156B103 | COM CL A | 56,350 | $2,558,290 | dollars as filed | |
| INSPIRE MED SYS INC COM | 457730109 | Stock | 7,650 | $2,483,496 | dollars as filed | |
| CATALYST PHARMACEUTICALS INC | 14888U101 | COM | 183,400 | $2,464,896 | dollars as filed | |
| PDF SOLUTIONS INC | 693282105 | COMMON STOCK | 54,500 | $2,457,950 | dollars as filed | |
| JANUS INTERNATIONAL GROUP IN | 47103N106 | COMMON STOCK | 224,700 | $2,395,302 | dollars as filed | |
| COMSTOCK RES INC COM | 205768302 | Stock | 206,463 | $2,394,966 | dollars as filed | |
| ALLIENT INC | 019330109 | COM | 56,600 | $2,260,604 | dollars as filed | |
| MRC GLOBAL INC | 55345K103 | COM | 223,400 | $2,249,638 | dollars as filed | |
| INSPERITY INC | 45778Q107 | COM | 18,000 | $2,141,280 | dollars as filed | |
| LEMAITRE VASCULAR INC | 525558201 | COM | 31,600 | $2,126,048 | dollars as filed | |
| NAPCO SEC TECHNOLOGIES INC COM | 630402105 | Stock | 59,300 | $2,054,745 | dollars as filed | |
| HERITAGE FINANCIAL CORP | 42722X106 | COMMON STOCK | 126,500 | $2,045,505 | dollars as filed | |
| DESTINATION XL GROUP INC | 25065K104 | COM | 415,700 | $2,036,930 | dollars as filed | |
| VISHAY PRECISION GROUP INC | 92835K103 | COM | 54,500 | $2,024,675 | dollars as filed | |
| MATADOR RES CO COM | 576485205 | Stock | 38,300 | $2,003,856 | dollars as filed | |
| NOVANTA INC | 67000B104 | COM | 10,600 | $1,951,460 | dollars as filed | |
| ALTA EQUIPMENT GROUP INC COMMON STOCK | 02128L106 | Stock | 110,100 | $1,908,033 | dollars as filed | |
| TEXAS ROADHOUSE INC COM | 882681109 | Stock | 16,700 | $1,875,076 | dollars as filed | |
| AMYLYX PHARMACEUTICALS INC | 03237H101 | COM | 85,000 | $1,833,450 | dollars as filed | |
| NERDWALLET INC CL A | 64082B102 | COMMON STOCK | 187,700 | $1,766,257 | dollars as filed | |
| SIMPSON MFG INC | 829073105 | COM | 12,600 | $1,745,100 | dollars as filed | |
| MERCANTILE BANK CORP | 587376104 | COMMON STOCK | 62,789 | $1,734,219 | dollars as filed | |
| COMFORT SYS USA INC COM | 199908104 | Stock | 10,500 | $1,724,100 | dollars as filed | |
| SCANSOURCE INC | 806037107 | COM | 58,200 | $1,720,392 | dollars as filed | |
| MINISO GROUP HLDG LTD SPONSORED ADS | 66981J102 | ADR | 96,800 | $1,644,632 | dollars as filed | |
| MAGNOLIA OIL & GAS CORP | 559663109 | CL A | 77,400 | $1,617,660 | dollars as filed | |
| CALERES INC | 129500104 | COM | 66,900 | $1,600,917 | dollars as filed | |
| SPY | 78462F103 | SHS | 3,597 | $1,594,581 | dollars as filed | |
| ROOKLINE BANCORP INC DEL | 11373M107 | COM | 180,000 | $1,573,200 | dollars as filed | |
| FIRST MERCHANTS CORP COM | 320817109 | Stock | 54,800 | $1,547,004 | dollars as filed | |
| WAFD INC | 938824109 | COM | 58,200 | $1,543,464 | dollars as filed | |
| WINGSTOP INC COM | 974155103 | Stock | 7,600 | $1,521,216 | dollars as filed | |
| NOV INC | 62955J103 | COM | 94,500 | $1,515,780 | dollars as filed | |
| FULL HSE RESORTS INC | 359678109 | COM | 223,143 | $1,495,058 | dollars as filed | |
| MURPHY USA INC COM | 626755102 | Stock | 4,800 | $1,493,328 | dollars as filed | |
| LIBERTY ENERGY INC | 53115L104 | COM CL A | 109,900 | $1,469,363 | dollars as filed | |
| LI AUTO INC SPONSORED ADS | 50202M102 | ADR | 33,000 | $1,158,300 | dollars as filed | |
| AMTECH SYSTEMS INC | 032332504 | COMMON STOCK | 118,900 | $1,136,684 | dollars as filed | |
| PDD HOLDINGS INC SPONSORED ADS | 722304102 | ADR | 16,000 | $1,106,240 | dollars as filed | |
| TAIWAN SEMICONDUCTOR MFG | 874039100 | SPONSORED ADS | 10,500 | $1,059,660 | dollars as filed | |
| Apple Inc | 037833100 | COM | 5,450 | $1,057,102 | dollars as filed | |
| Microsoft Corp | 594918104 | COM | 3,055 | $1,040,350 | dollars as filed | |
| MAXLINEAR INC | 57776J100 | COM | 31,505 | $994,298 | dollars as filed | |
| TENCENT MUSIC ENTMT GROUP SPON ADS | 88034P109 | ADR | 125,000 | $922,500 | dollars as filed | |
| NINE ENERGY SERVICE INC | 65441V101 | COM | 235,800 | $903,114 | dollars as filed | |
| KVH INDS INC | 482738101 | COM | 91,000 | $831,740 | dollars as filed | |
| LEGEND BIOTECH CORP | 52490G102 | SPONSORED ADS | 12,000 | $828,360 | dollars as filed | |
| CVD EQUIP CORP | 126601103 | COM | 103,000 | $759,110 | dollars as filed | |
| JPMorgan Chase & Co | 46625H100 | COM | 4,095 | $595,518 | dollars as filed | |
| Johnson & Johnson | 478160104 | COM | 2,711 | $448,676 | dollars as filed | |
| TRAVELERS COMPANIES INC COM | 89417E109 | Stock | 2,271 | $394,446 | dollars as filed | |
| MasterCard, Inc | 57636Q104 | COM | 945 | $371,727 | dollars as filed | |
| RESMED INC COM | 761152107 | Stock | 1,450 | $316,825 | dollars as filed | |
| Amgen Inc. | 031162100 | COM | 1,383 | $306,992 | dollars as filed | |
| Eli Lilly and Company | 532457108 | COM | 609 | $285,643 | dollars as filed | |
| RF INDUSTRIES LTD | 749552105 | COMMON STOCK | 63,100 | $261,865 | dollars as filed | |
| Amazon.com, Inc | 023135106 | COM | 2,000 | $260,720 | dollars as filed | |
| McDonalds Corporation | 580135101 | COM | 841 | $250,850 | dollars as filed | |
| Walmart Inc. | 931142103 | COM | 1,589 | $249,690 | dollars as filed | |
| ARCOS DORADOS HLDGS INC | G0457F107 | SHS CLASS -A - | 23,200 | $237,800 | dollars as filed | |
| GRUPO AEROPORTUARIO DEL CENT | 400501102 | SPON ADR | 2,700 | $229,068 | dollars as filed | |
| NEWMONT CORP | 651639106 | COM | 5,126 | $218,660 | dollars as filed | |
| PepsiCo,Inc. | 713448108 | COM | 1,095 | $202,816 | dollars as filed | |
| CONTROLADORA VUELA COMP DE A | 21240E105 | SPON ADR RP 10 | 12,000 | $167,400 | dollars as filed | |
| DADA NEXUS LTD NPV ADR | 23344D108 | ADS | 22,800 | $121,068 | dollars as filed | |
| Xenacare Hldgs, Inc. | 98401A106 | COM | 140,000 | $0 | dollars as filed | Value filed as zero, left out of ratios. |
| AVATAR VENTURES CORP | 05350B100 | COMMON STOCK | 10,000 | $0 | dollars as filed | Value filed as zero, left out of ratios. |
| Titan Oil & Gas Inc New | 888309101 | COM | 10,000 | $0 | dollars as filed | Value filed as zero, left out of ratios. |
| AMERICAN POWER ORD | 02906T107 | COM | 10,000 | $0 | dollars as filed | Value filed as zero, left out of ratios. |
| AMR Corp Escrow | 001ESC102 | COM | 18,000 | $0 | dollars as filed | Value filed as zero, left out of ratios. |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001213900-23-066668 | this filing | 2023-08-14 | acceptance time not in the bulk data set |