13F-HR filed by OBERWEIS ASSET MANAGEMENT INC/
OBERWEIS ASSET MANAGEMENT INC/ filed this 13F-HR for the quarter ended 2025-09-30, filed 2025-11-17, with 183 holding rows worth $2,611,720,449.
- Accession
- 0001213900-25-111225
- Filer
- CIK 937886
- Filed
- 2025-11-17
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q3 2025
A holdings report, 183 entries on the cover page, a total value of $2,611,720,449 stated on the cover page (in dollars after the unit check, H1), rows summing to $2,611,720,449 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 |
|---|---|---|---|---|---|---|
| CREDO TECHNOLOGY GROUP HOLDING ORDINARY SHARES | G25457105 | Stock | 643,948 | $93,765,268 | dollars as filed | |
| LUMENTUM HLDGS INC COM | 55024U109 | Stock | 328,630 | $53,471,387 | dollars as filed | |
| RAMBUS INC DEL COM | 750917106 | Stock | 507,899 | $52,923,076 | dollars as filed | |
| AMBARELLA INC | G037AX101 | SHS | 611,360 | $50,449,427 | dollars as filed | |
| SHARKNINJA INC COM SHS | G8068L108 | Stock | 482,810 | $49,801,852 | dollars as filed | |
| APPLIED OPTOELECTRONICS INC | 03823U102 | COM | 1,888,041 | $48,956,903 | dollars as filed | |
| ENCOMPASS HEALTH CORP COM | 29261A100 | Stock | 358,800 | $45,574,824 | dollars as filed | |
| FRONTDOOR INC COM | 35905A109 | Stock | 610,860 | $41,104,769 | dollars as filed | |
| ADMA BIOLOGICS INC | 000899104 | COM | 2,712,040 | $39,758,506 | dollars as filed | |
| AMERICAN SUPERCONDUCTOR CORP | 030111207 | SHS NEW | 665,700 | $39,535,923 | dollars as filed | |
| SPORTRADAR GROUP AG | H8088L103 | COM | 1,379,100 | $37,097,790 | dollars as filed | |
| NOVA LTD COM | M7516K103 | Stock | 113,285 | $36,212,683 | dollars as filed | |
| ITRON INC COM | 465741106 | Stock | 284,150 | $35,393,724 | dollars as filed | |
| SKYWEST INC COM | 830879102 | Stock | 330,790 | $33,284,090 | dollars as filed | |
| SITIME CORP COM | 82982T106 | Stock | 106,396 | $32,058,179 | dollars as filed | |
| WAYSTAR HLDG CORP | 946784105 | COM | 836,550 | $31,721,976 | dollars as filed | |
| MERCURY SYS INC COM | 589378108 | Stock | 398,500 | $30,843,900 | dollars as filed | |
| CLEAN HARBORS INC COM | 184496107 | Stock | 116,770 | $27,116,329 | dollars as filed | |
| STRIDE INC | 86333M108 | COM | 181,800 | $27,077,292 | dollars as filed | |
| BRIGHTSPRING HEALTH SVCS | 10950A106 | COM | 908,000 | $26,840,480 | dollars as filed | |
| PRIMORIS SVCS CORP COM | 74164F103 | Stock | 192,400 | $26,422,292 | dollars as filed | |
| DIGITALOCEAN HLDGS INC COM | 25402D102 | Stock | 772,000 | $26,371,520 | dollars as filed | |
| OSI SYSTEMS INC | 671044105 | COM | 101,400 | $25,272,936 | dollars as filed | |
| TUTOR PERINI CORP | 901109108 | COM | 377,800 | $24,779,902 | dollars as filed | |
| VERACYTE INC COM | 92337F107 | Stock | 721,690 | $24,775,618 | dollars as filed | |
| RUSH STREET INTERACTIVE INC | 782011100 | COM | 1,191,560 | $24,403,149 | dollars as filed | |
| COMMVAULT SYS INC COM | 204166102 | Stock | 128,600 | $24,277,108 | dollars as filed | |
| FRESHWORKS INC CLASS A COM | 358054104 | Stock | 2,059,470 | $24,239,962 | dollars as filed | |
| LIFE TIME GROUP HOLDINGS INC COMMON STOCK | 53190C102 | Stock | 866,400 | $23,912,640 | dollars as filed | |
| QORVO INC COM | 74736K101 | Stock | 260,900 | $23,762,772 | dollars as filed | |
| PARSONS CORP DEL COM | 70202L102 | Stock | 272,730 | $22,614,772 | dollars as filed | |
| CAMTEK LTD ORD | M20791105 | Stock | 213,580 | $22,436,579 | dollars as filed | |
| PEGASYSTEMS INC COM | 705573103 | Stock | 389,400 | $22,390,500 | dollars as filed | |
| EVERUS CONSTR GROUP COM | 300426103 | Stock | 259,800 | $22,277,850 | dollars as filed | |
| MACOM TECH SOLUTIONS HLDGS INC COM | 55405Y100 | Stock | 177,790 | $22,133,077 | dollars as filed | |
| GRAND CANYON ED INC COM | 38526M106 | Stock | 99,800 | $21,908,096 | dollars as filed | |
| SILICON MOTION TECHNOLOGY CORP SPONSORED ADR | 82706C108 | ADR | 230,600 | $21,863,186 | dollars as filed | |
| FLOWSERVE CORP | 34354P105 | COM | 409,285 | $21,749,393 | dollars as filed | |
| GENPACT LIMITED SHS | G3922B107 | Stock | 516,800 | $21,648,752 | dollars as filed | |
| BLUE BIRD CORP | 095306106 | COM | 373,400 | $21,489,170 | dollars as filed | |
| AAR CORP | 000361105 | COM | 236,500 | $21,206,955 | dollars as filed | |
| DUTCH BROS INC | 26701L100 | CL A | 404,500 | $21,171,530 | dollars as filed | |
| Q2 HLDGS INC COM | 74736L109 | Stock | 292,260 | $21,156,701 | dollars as filed | |
| LEVI STRAUSS & CO NEW CL A COM STK | 52736R102 | Stock | 903,500 | $21,051,550 | dollars as filed | |
| BOX INC CL A | 10316T104 | Stock | 652,320 | $21,050,366 | dollars as filed | |
| GENEDX HOLDINGS CORP | 81663L200 | COM CL A | 193,920 | $20,892,941 | dollars as filed | |
| ARCOSA INC COM | 039653100 | Stock | 221,600 | $20,766,136 | dollars as filed | |
| CARPENTER TECHNOLOGY CORP | 144285103 | COM | 82,611 | $20,284,327 | dollars as filed | |
| LATTICE SEMICONDUCTOR CORP COM | 518415104 | Stock | 275,536 | $20,202,300 | dollars as filed | |
| FEDERAL SIGNAL CORP | 313855108 | COM | 166,500 | $19,811,835 | dollars as filed | |
| IMPINJ INC | 453204109 | COM | 107,120 | $19,361,940 | dollars as filed | |
| MERIT MED SYS INC COM | 589889104 | Stock | 232,010 | $19,310,192 | dollars as filed | |
| CARGURUS INC COM CL A | 141788109 | Stock | 518,400 | $19,300,032 | dollars as filed | |
| IMAX CORP | 45245E109 | COM | 579,600 | $18,981,900 | dollars as filed | |
| ASSURANT INC COM | 04621X108 | Stock | 83,000 | $17,977,800 | dollars as filed | |
| ICU MED INC | 44930G107 | COM | 149,130 | $17,889,635 | dollars as filed | |
| ACI WORLDWIDE INC COM | 004498101 | Stock | 330,702 | $17,451,145 | dollars as filed | |
| NATIONAL VISION HLDGS INC COM | 63845R107 | Stock | 594,900 | $17,365,131 | dollars as filed | |
| FABRINET SHS | G3323L100 | Stock | 45,900 | $16,736,058 | dollars as filed | |
| URBAN OUTFITTERS INC | 917047102 | COM | 234,300 | $16,736,049 | dollars as filed | |
| ULTRA CLEAN HLDGS INC COM | 90385V107 | Stock | 613,300 | $16,712,425 | dollars as filed | |
| ARGAN INC | 04010E109 | COM | 60,571 | $16,357,180 | dollars as filed | |
| REMITLY GLOBAL INC | 75960P104 | COM | 1,002,800 | $16,345,640 | dollars as filed | |
| LITTELFUSE INC COM | 537008104 | Stock | 62,300 | $16,136,323 | dollars as filed | |
| SPROUTS FMRS MKT INC COM | 85208M102 | Stock | 145,500 | $15,830,400 | dollars as filed | |
| FIRSTCASH HOLDINGS INC | 33768G107 | COM | 97,800 | $15,493,476 | dollars as filed | |
| ZETA GLOBAL HOLDINGS CORP CL A | 98956A105 | Stock | 761,200 | $15,125,044 | dollars as filed | |
| SOLARIS ENERGY INFRAS INC COM CL A | 83418M103 | Stock | 366,900 | $14,664,993 | dollars as filed | |
| POWELL INDS INC | 739128106 | COM | 47,500 | $14,478,475 | dollars as filed | |
| NEW YORK TIMES CO MTN BE CL A | 650111107 | Stock | 252,000 | $14,464,800 | dollars as filed | |
| SPX TECHNOLOGIES INC | 78473E103 | COM | 76,900 | $14,363,382 | dollars as filed | |
| IRHYTHM HOLDINGS INC COM | 450056106 | Stock | 81,200 | $13,965,588 | dollars as filed | |
| HEALTHEQUITY INC COM | 42226A107 | Stock | 140,080 | $13,275,382 | dollars as filed | |
| EZCORP INC | 302301106 | CL A NON VTG | 685,500 | $13,051,920 | dollars as filed | |
| GREEN DOT CORP CLASS A | 39304D102 | CL A | 970,300 | $13,031,129 | dollars as filed | |
| BADGER METER INC COM | 056525108 | Stock | 72,610 | $12,966,694 | dollars as filed | |
| ANI PHARMACEUTICALS INC | 00182C103 | COM | 138,900 | $12,723,240 | dollars as filed | |
| SENSIENT TECHNOLOGIES CORP | 81725T100 | COM | 134,200 | $12,594,670 | dollars as filed | |
| GENIUS SPORTS LIMITED SHARES CL A | G3934V109 | Stock | 1,015,100 | $12,566,938 | dollars as filed | |
| ZURN ELKAY WATER SOLNS CORP COM | 98983L108 | Stock | 266,000 | $12,509,980 | dollars as filed | |
| INTERFACE INC | 458665304 | COM | 425,300 | $12,308,182 | dollars as filed | |
| COMMSCOPE HLDG CO INC | 20337X109 | COM | 790,912 | $12,243,318 | dollars as filed | |
| ADVANCED ENERGY INDS COM | 007973100 | Stock | 69,700 | $11,858,758 | dollars as filed | |
| KINIKSA PHARMACEUTICALS INTL P ORD SHS CL A | G52694109 | Stock | 305,200 | $11,850,916 | dollars as filed | |
| INTERDIGITAL INC COM | 45867G101 | Stock | 34,100 | $11,772,343 | dollars as filed | |
| DIODES INC COM | 254543101 | Stock | 218,700 | $11,637,027 | dollars as filed | |
| AMERIS BANCORP | 03076K108 | COM | 156,400 | $11,465,684 | dollars as filed | |
| MATADOR RES CO COM | 576485205 | Stock | 253,900 | $11,407,727 | dollars as filed | |
| MAGNITE INC COM | 55955D100 | Stock | 514,000 | $11,194,920 | dollars as filed | |
| QUALYS INC COM | 74758T303 | Stock | 84,000 | $11,115,720 | dollars as filed | |
| SKYWARD SPECIALTY INS GROUP | 830940102 | COM | 231,800 | $11,024,408 | dollars as filed | |
| ADAPTIVE BIOTECHNOLOGIES CORP COM | 00650F109 | Stock | 726,500 | $10,868,440 | dollars as filed | |
| M/I HOMES INC | 55305B101 | COM | 73,200 | $10,573,008 | dollars as filed | |
| COMMERCE BANCSHARES INC | 200525103 | COM | 176,890 | $10,570,946 | dollars as filed | |
| CATALYST PHARMACEUTICALS INC | 14888U101 | COM | 528,560 | $10,412,632 | dollars as filed | |
| ONESPAN INC | 68287N100 | COM | 640,450 | $10,176,751 | dollars as filed | |
| VARONIS SYS INC | 922280102 | COM | 176,600 | $10,149,202 | dollars as filed | |
| TURNING PT BRANDS INC COM | 90041L105 | Stock | 101,000 | $9,984,860 | dollars as filed | |
| LEMAITRE VASCULAR INC | 525558201 | COM | 113,767 | $9,955,727 | dollars as filed | |
| ONESPAWORLD HOLDINGS LIMITED | P73684113 | COM | 465,400 | $9,838,556 | dollars as filed | |
| LIVANOVA PLC | G5509L101 | SHS | 186,000 | $9,742,680 | dollars as filed | |
| VITA COCO CO INC | 92846Q107 | COM | 228,300 | $9,695,901 | dollars as filed | |
| FIVE9 INC | 338307101 | COM | 396,600 | $9,597,720 | dollars as filed | |
| IBEX LTD | G4690M101 | COMMON STOCK | 236,000 | $9,562,720 | dollars as filed | |
| ADDUS HOMECARE CORP | 006739106 | COM | 78,200 | $9,226,818 | dollars as filed | |
| DUCOMMUN INC DEL | 264147109 | COM | 95,700 | $9,199,641 | dollars as filed | |
| PEDIATRIX MEDICAL GROUP INC | 58502B106 | COM | 545,600 | $9,138,800 | dollars as filed | |
| CORMEDIX INC COM | 21900C308 | Stock | 785,700 | $9,137,691 | dollars as filed | |
| DAVE INC | 23834J201 | CLASS A COM NEW | 45,622 | $9,094,746 | dollars as filed | |
| MAGNOLIA OIL & GAS CORP | 559663109 | CL A | 376,300 | $8,982,281 | dollars as filed | |
| ARTIVION INC | 228903100 | COM | 211,800 | $8,967,612 | dollars as filed | |
| NATURAL GROCERS BY VITAMIN C | 63888U108 | COMMON STOCK | 218,806 | $8,752,259 | dollars as filed | |
| HALOZYME THERAPEUTICS INC COM | 40637H109 | Stock | 117,580 | $8,623,317 | dollars as filed | |
| EXLSERVICE HLDGS INC COM | 302081104 | Stock | 194,400 | $8,559,432 | dollars as filed | |
| HAWKINS INC | 420261109 | COM | 45,700 | $8,350,304 | dollars as filed | |
| AMERICAN EAGLE OUTFITTERS INC COM | 02553E106 | Stock | 484,000 | $8,281,240 | dollars as filed | |
| LIMBACH HLDGS INC | 53263P105 | COM | 83,700 | $8,128,944 | dollars as filed | |
| NICOLET BANKSHARES INC | 65406E102 | COM | 60,200 | $8,096,900 | dollars as filed | |
| NLIGHT INC | 65487K100 | COM | 266,000 | $7,881,580 | dollars as filed | |
| MALIBU BOATS INC A | 56117J100 | COMMON STOCK | 238,200 | $7,729,590 | dollars as filed | |
| CELLEBRITE DI LTD ORDINARY SHARES | M2197Q107 | Stock | 414,550 | $7,681,612 | dollars as filed | |
| REV Group Inc | 749527107 | Common Stock | 134,500 | $7,622,115 | dollars as filed | |
| ALPHA & OMEGA SEMICONDUCTOR | G6331P104 | SHS | 271,100 | $7,579,956 | dollars as filed | |
| VSE CORP COM | 918284100 | Stock | 44,600 | $7,414,304 | dollars as filed | |
| FIRST MERCHANTS CORP COM | 320817109 | Stock | 196,000 | $7,389,200 | dollars as filed | |
| LIQUIDIA CORPORATION COM NEW | 53635D202 | Stock | 321,200 | $7,304,088 | dollars as filed | |
| CRA INTL INC | 12618T105 | COM | 34,900 | $7,277,697 | dollars as filed | |
| RADWARE LTD | M81873107 | COMMON STOCK | 274,700 | $7,276,803 | dollars as filed | |
| EVOLV TECHNOLOGIES HLDNGS IN | 30049H102 | COM CL A | 948,400 | $7,160,420 | dollars as filed | |
| LINCOLN EDL SVCS CORP | 533535100 | COM | 301,600 | $7,087,600 | dollars as filed | |
| BOOT BARN HLDGS INC | 099406100 | COM | 42,100 | $6,976,812 | dollars as filed | |
| FB FINL CORP | 30257X104 | COM | 123,500 | $6,883,890 | dollars as filed | |
| ALPHATEC HLDGS INC | 02081G201 | COM NEW | 461,122 | $6,704,714 | dollars as filed | |
| WEAVE COMMUNICATIONS INC | 94724R108 | COM | 985,950 | $6,586,146 | dollars as filed | |
| COURSERA INC COM | 22266M104 | Stock | 561,000 | $6,569,310 | dollars as filed | |
| BUILD-A-BEAR WORKSHOP INC | 120076104 | COM | 91,600 | $5,973,236 | dollars as filed | |
| HURON CONSULTING GROUP INC | 447462102 | COM | 40,500 | $5,944,185 | dollars as filed | |
| AXOGEN INC | 05463X106 | COM | 328,100 | $5,853,304 | dollars as filed | |
| PAGAYA TECHNOLOGIES LTD | M7S64L123 | CL A NEW | 190,000 | $5,641,100 | dollars as filed | |
| NPK INTERNATIONAL INC | 651718504 | COMMON STOCK | 496,500 | $5,615,415 | dollars as filed | |
| POWERFLEET INC | 73931J109 | COMMON STOCK | 1,068,800 | $5,600,512 | dollars as filed | |
| PRECISION DRILLING CORP COM NEW | 74022D407 | Stock | 97,100 | $5,472,556 | dollars as filed | |
| ATRICURE INC | 04963C209 | COM | 153,500 | $5,410,875 | dollars as filed | |
| RED VIOLET INC | 75704L104 | COMMON STOCK | 100,300 | $5,240,675 | dollars as filed | |
| EXPRO GROUP HOLDINGS NV | N3144W105 | COMMON STOCK | 435,500 | $5,173,740 | dollars as filed | |
| 1ST SOURCE CORP COM | 336901103 | Stock | 82,700 | $5,091,012 | dollars as filed | |
| INSTEEL INDS INC | 45774W108 | COM | 132,732 | $5,088,945 | dollars as filed | |
| BACKBLAZE INC A | 05637B105 | COMMON STOCK | 538,700 | $4,999,136 | dollars as filed | |
| CECO ENVIRONMENTAL CORP | 125141101 | COM | 92,008 | $4,710,810 | dollars as filed | |
| AVEPOINT INC COM CL A | 053604104 | Stock | 296,300 | $4,447,463 | dollars as filed | |
| CLIMB GLOBAL SOLUTIONS INC | 946760105 | COMMON STOCK | 32,500 | $4,382,300 | dollars as filed | |
| GORMAN RUPP CO COM | 383082104 | Stock | 90,900 | $4,218,669 | dollars as filed | |
| ETON PHARMACEUTICALS INC | 29772L108 | COMMON STOCK | 192,360 | $4,179,983 | dollars as filed | |
| BIOVENTUS INC | 09075A108 | COM CL A | 601,714 | $4,025,467 | dollars as filed | |
| LSI INDUSTRIES INC | 50216C108 | COMMON STOCK | 169,200 | $3,994,812 | dollars as filed | |
| LINDBLAD EXPEDITIONS HLDGS I | 535219109 | COM | 299,400 | $3,832,320 | dollars as filed | |
| SEA LTD | 81141R100 | SPONSORD ADS | 17,000 | $3,038,410 | dollars as filed | |
| Matrix Service Company | 576853105 | COM | 221,075 | $2,891,661 | dollars as filed | |
| CADENCE DESIGN SYSTEM INC COM | 127387108 | Stock | 7,400 | $2,599,324 | dollars as filed | |
| SPOTIFYTECHNOLOGYSAF | L8681T102 | STOK | 2,800 | $1,954,400 | dollars as filed | |
| FUTU HLDGS LTD SPON ADS CL A | 36118L106 | ADR | 11,000 | $1,913,010 | dollars as filed | |
| SHOPIFY INC | 82509L107 | CL A SUB VTG SHS | 10,000 | $1,486,100 | dollars as filed | |
| SPY | 78462F103 | SHS | 2,173 | $1,447,383 | dollars as filed | |
| Microsoft Corp | 594918104 | COM | 2,665 | $1,380,337 | dollars as filed | |
| JPMorgan Chase & Co | 46625H100 | COM | 3,121 | $984,496 | dollars as filed | |
| PDD HOLDINGS INC SPONSORED ADS | 722304102 | ADR | 7,000 | $925,190 | dollars as filed | |
| Apple Inc | 037833100 | COM | 3,388 | $862,601 | dollars as filed | |
| HESAI GROUP | 428050108 | SPONSORED ADS | 28,000 | $786,800 | dollars as filed | |
| ARIS WATER SOLUTIONS INC | 04041L106 | CLASS A COM | 22,201 | $547,486 | dollars as filed | |
| TRAVELERS COMPANIES INC COM | 89417E109 | Stock | 1,670 | $466,330 | dollars as filed | |
| Alphabet Inc. Reg. Shares A | 02079K305 | COM | 1,900 | $461,890 | dollars as filed | |
| RESMED INC COM | 761152107 | Stock | 1,450 | $396,909 | dollars as filed | |
| Alphabet Inc. Reg. Shares C | 02079K107 | COM | 1,620 | $394,551 | dollars as filed | |
| MasterCard, Inc | 57636Q104 | COM | 671 | $381,908 | dollars as filed | |
| Johnson & Johnson | 478160104 | COM | 2,047 | $379,522 | dollars as filed | |
| Amgen Inc. | 031162100 | COM | 1,034 | $291,916 | dollars as filed | |
| BANK OF NY MELLON CORP COM | 064058100 | Stock | 2,608 | $284,135 | dollars as filed | |
| NEWMONT CORP | 651639106 | COM | 3,171 | $267,389 | dollars as filed | |
| McDonalds Corporation | 580135101 | COM | 852 | $258,864 | dollars as filed | |
| Walmart Inc. | 931142103 | COM | 2,357 | $242,876 | dollars as filed | |
| AFLAC INC COM | 001055102 | Stock | 2,000 | $223,400 | dollars as filed | |
| Caterpillar Inc. | 149123101 | COM | 426 | $203,224 | dollars as filed | |
| Xenacare Hldgs, Inc. | 98401A106 | COM | 140,000 | $0 | dollars as filed | Value filed as zero, left out of ratios. |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001213900-25-111225 | this filing | 2025-11-17 | acceptance time not in the bulk data set |