Oberweis Asset Management as of Dec. 31, 2025
Portfolio Holdings for Oberweis Asset Management
Oberweis Asset Management holds 179 positions in its portfolio as reported in the December 2025 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price |
|---|---|---|---|---|---|
| Lumentum Hldgs (LITE) | 3.8 | $104M | 281k | 368.59 | |
| Credo Technology Group Holding (CRDO) | 3.6 | $97M | 675k | 143.89 | |
| Applied Optoelectronics (AAOI) | 2.6 | $71M | 2.0M | 34.86 | |
| Sharkninja (SN) | 2.2 | $59M | 526k | 111.90 | |
| Ambarella (AMBA) | 1.6 | $44M | 618k | 70.84 | |
| Rambus (RMBS) | 1.6 | $43M | 462k | 91.89 | |
| SkyWest (SKYW) | 1.4 | $38M | 382k | 100.41 | |
| Encompass Health Corp (EHC) | 1.4 | $38M | 359k | 106.14 | |
| Sitime Corp (SITM) | 1.4 | $38M | 106k | 353.19 | |
| Digitalocean Hldgs (DOCN) | 1.4 | $38M | 779k | 48.12 | |
| NOVA MEASURING Instruments L (NVMI) | 1.4 | $37M | 113k | 328.39 | |
| Frontdoor (FTDR) | 1.3 | $35M | 611k | 57.69 | |
| Brightspring Health Svcs (BTSG) | 1.2 | $34M | 908k | 37.45 | |
| M/a (MTSI) | 1.1 | $31M | 179k | 171.28 | |
| Veracyte (VCYT) | 1.1 | $31M | 727k | 42.10 | |
| Mercury Computer Systems (MRCY) | 1.1 | $30M | 414k | 73.01 | |
| Flowserve Corporation (FLS) | 1.0 | $28M | 410k | 69.38 | |
| Life Time Group Holdings (LTH) | 1.0 | $28M | 1.1M | 26.58 | |
| Waystar Holding Corp (WAY) | 1.0 | $28M | 841k | 32.75 | |
| Rush Street Interactive (RSI) | 1.0 | $27M | 1.4M | 19.43 | |
| Clean Harbors (CLH) | 1.0 | $27M | 117k | 234.48 | |
| Carpenter Technology Corporation (CRS) | 1.0 | $26M | 83k | 314.84 | |
| Tutor Perini Corporation (TPC) | 0.9 | $26M | 387k | 67.02 | |
| OSI Systems (OSIS) | 0.9 | $26M | 101k | 255.06 | |
| Genedx Holdings Corp (WGS) | 0.9 | $26M | 199k | 130.06 | |
| Pegasystems (PEGA) | 0.9 | $25M | 425k | 59.72 | |
| Freshworks (FRSH) | 0.9 | $25M | 2.1M | 12.25 | |
| Dutch Bros (BROS) | 0.9 | $25M | 405k | 61.22 | |
| Genpact (G) | 0.9 | $24M | 522k | 46.78 | |
| Q2 Holdings (QTWO) | 0.9 | $24M | 337k | 72.16 | |
| Imax Corp Cad (IMAX) | 0.9 | $24M | 652k | 36.96 | |
| American Superconductor (AMSC) | 0.9 | $24M | 836k | 28.78 | |
| ICU Medical, Incorporated (ICUI) | 0.9 | $24M | 168k | 142.67 | |
| Merit Medical Systems (MMSI) | 0.9 | $24M | 269k | 88.14 | |
| Globus Med Inc cl a (GMED) | 0.9 | $24M | 270k | 87.31 | |
| Arcosa (ACA) | 0.9 | $24M | 222k | 106.32 | |
| Arcutis Biotherapeutics (ARQT) | 0.9 | $24M | 808k | 29.04 | |
| Camtek (CAMT) | 0.9 | $23M | 219k | 106.34 | |
| Lattice Semiconductor (LSCC) | 0.8 | $23M | 315k | 73.58 | |
| Aar (AIR) | 0.8 | $23M | 273k | 82.79 | |
| Everus Constr Group (ECG) | 0.8 | $22M | 260k | 85.56 | |
| Silicon Motion Technology (SIMO) | 0.8 | $22M | 236k | 92.70 | |
| Urban Outfitters (URBN) | 0.8 | $22M | 286k | 75.26 | |
| American Eagle Outfitters (AEO) | 0.8 | $22M | 815k | 26.37 | |
| Irhythm Technologies (IRTC) | 0.8 | $21M | 120k | 177.44 | |
| Alphatec Holdings (ATEC) | 0.8 | $21M | 1.0M | 21.04 | |
| New York Times Company (NYT) | 0.8 | $21M | 303k | 69.42 | |
| Firstcash Holdings (FCFS) | 0.8 | $21M | 131k | 159.38 | |
| Levi Strauss Co New cl a com stk (LEVI) | 0.8 | $21M | 994k | 20.74 | |
| Primoris Services (PRIM) | 0.7 | $20M | 163k | 124.14 | |
| National Vision Hldgs (EYE) | 0.7 | $20M | 785k | 25.82 | |
| Assurant (AIZ) | 0.7 | $20M | 83k | 240.85 | |
| Cargurus (CARG) | 0.7 | $20M | 518k | 38.35 | |
| Box Inc cl a (BOX) | 0.7 | $20M | 652k | 29.91 | |
| Dana Holding Corporation (DAN) | 0.7 | $19M | 797k | 23.76 | |
| Impinj (PI) | 0.7 | $19M | 107k | 174.01 | |
| Federal Signal Corporation (FSS) | 0.7 | $18M | 167k | 108.59 | |
| Blue Bird Corp (BLBD) | 0.7 | $18M | 383k | 47.00 | |
| Sensient Technologies Corporation (SXT) | 0.6 | $18M | 188k | 93.95 | |
| Genius Sports (GENI) | 0.6 | $18M | 1.6M | 11.02 | |
| Commscope Hldg (VISN) | 0.6 | $17M | 961k | 18.13 | |
| Solaris Oilfield Infrstr (SEI) | 0.6 | $17M | 367k | 45.97 | |
| Grand Canyon Education (LOPE) | 0.6 | $17M | 100k | 166.31 | |
| Ultra Clean Holdings (UCTT) | 0.6 | $16M | 629k | 25.33 | |
| ACI Worldwide (ACIW) | 0.6 | $16M | 331k | 47.81 | |
| Core Natural Resources (CNR) | 0.6 | $16M | 178k | 88.51 | |
| Littelfuse (LFUS) | 0.6 | $16M | 62k | 252.92 | |
| Zeta Global Holdings Corp (ZETA) | 0.6 | $16M | 767k | 20.35 | |
| Powell Industries (POWL) | 0.6 | $16M | 49k | 318.78 | |
| Spx Corp (SPXC) | 0.6 | $15M | 77k | 200.06 | |
| Indivior | 0.6 | $15M | 425k | 35.88 | |
| Super Group Sghc (SGHC) | 0.6 | $15M | 1.3M | 11.95 | |
| Biosante Pharmaceuticals (ANIP) | 0.5 | $15M | 189k | 78.94 | |
| Alignment Healthcare (ALHC) | 0.5 | $15M | 748k | 19.75 | |
| Qualys (QLYS) | 0.5 | $14M | 108k | 132.90 | |
| Mirion Technologies Inc - US (MIR) | 0.5 | $14M | 608k | 23.42 | |
| CommVault Systems (CVLT) | 0.5 | $14M | 111k | 125.36 | |
| Remitly Global (RELY) | 0.5 | $14M | 1.0M | 13.80 | |
| Catalyst Pharmaceutical Partners (CPRX) | 0.5 | $14M | 587k | 23.34 | |
| Nlight (LASR) | 0.5 | $13M | 356k | 37.51 | |
| Livanova Plc Ord (LIVN) | 0.5 | $13M | 212k | 61.53 | |
| Dave (DAVE) | 0.5 | $13M | 59k | 221.41 | |
| Healthequity (HQY) | 0.5 | $13M | 142k | 91.61 | |
| Calix (CALX) | 0.5 | $13M | 245k | 52.93 | |
| Kiniksa Pharmaceuticals Intl P Ord Shs Cl A (KNSA) | 0.5 | $13M | 313k | 41.25 | |
| Vita Coco Co Inc/the (COCO) | 0.5 | $12M | 233k | 53.01 | |
| Zurn Water Solutions Corp Zws (ZWS) | 0.5 | $12M | 266k | 46.49 | |
| Ez (EZPW) | 0.4 | $12M | 628k | 19.42 | |
| Interface (TILE) | 0.4 | $12M | 436k | 27.92 | |
| Skyward Specialty Insurance Gr (SKWD) | 0.4 | $12M | 238k | 51.11 | |
| Adaptive Biotechnologies Cor (ADPT) | 0.4 | $12M | 745k | 16.24 | |
| Mednax (MD) | 0.4 | $12M | 560k | 21.39 | |
| Ameris Ban (ABCB) | 0.4 | $12M | 156k | 74.27 | |
| Fabrinet (FN) | 0.4 | $12M | 25k | 455.28 | |
| Liquidia Technologies (LQDA) | 0.4 | $11M | 329k | 34.49 | |
| Turning Pt Brands (TPB) | 0.4 | $11M | 104k | 108.40 | |
| Axogen (AXGN) | 0.4 | $11M | 336k | 32.73 | |
| Workiva Inc equity us cm (WK) | 0.4 | $11M | 128k | 86.25 | |
| Matador Resources (MTDR) | 0.4 | $11M | 254k | 42.44 | |
| Argan (AGX) | 0.4 | $10M | 33k | 313.32 | |
| Magnite Ord (MGNI) | 0.4 | $10M | 636k | 16.23 | |
| CryoLife (AORT) | 0.4 | $9.9M | 217k | 45.61 | |
| Onespaworld Holdings Ltd onespaworld hold (OSW) | 0.4 | $9.9M | 477k | 20.74 | |
| Green Dot Corporation (GDOT) | 0.4 | $9.8M | 765k | 12.81 | |
| ePlus (PLUS) | 0.4 | $9.7M | 111k | 87.70 | |
| M/I Homes (MHO) | 0.4 | $9.6M | 75k | 127.95 | |
| Boot Barn Hldgs (BOOT) | 0.3 | $9.5M | 54k | 176.47 | |
| LeMaitre Vascular (LMAT) | 0.3 | $9.4M | 116k | 81.10 | |
| Cormedix Inc cormedix (CRMD) | 0.3 | $9.4M | 805k | 11.63 | |
| Ducommun Incorporated (DCO) | 0.3 | $9.3M | 98k | 95.13 | |
| Ibex (IBEX) | 0.3 | $9.2M | 242k | 38.18 | |
| Viavi Solutions Inc equities (VIAV) | 0.3 | $9.1M | 508k | 17.82 | |
| Propetro Hldg (PUMP) | 0.3 | $9.0M | 948k | 9.51 | |
| InterDigital (IDCC) | 0.3 | $9.0M | 28k | 318.38 | |
| Fb Finl (FBK) | 0.3 | $8.9M | 159k | 55.80 | |
| CECO Environmental (CECO) | 0.3 | $8.7M | 146k | 59.85 | |
| AtriCure (ATRC) | 0.3 | $8.6M | 218k | 39.56 | |
| Benchmark Electronics (BHE) | 0.3 | $8.5M | 198k | 42.76 | |
| Addus Homecare Corp (ADUS) | 0.3 | $8.4M | 78k | 107.39 | |
| Rev | 0.3 | $8.4M | 138k | 60.81 | |
| Advanced Energy Industries (AEIS) | 0.3 | $8.3M | 40k | 209.37 | |
| Magnolia Oil & Gas Corp magnolia oil & gas corp (MGY) | 0.3 | $8.2M | 376k | 21.89 | |
| Build-A-Bear Workshop (BBW) | 0.3 | $8.2M | 134k | 61.27 | |
| Halozyme Therapeutics (HALO) | 0.3 | $7.9M | 118k | 67.30 | |
| Phibro Animal Health Corporati*on Cmn Class A (PAHC) | 0.3 | $7.8M | 210k | 37.36 | |
| Evolv Technologi (EVLV) | 0.3 | $7.7M | 1.1M | 7.16 | |
| Weave Communications (WEAV) | 0.3 | $7.6M | 999k | 7.59 | |
| Diodes Incorporated (DIOD) | 0.3 | $7.5M | 152k | 49.34 | |
| Nicolet Bankshares (NIC) | 0.3 | $7.5M | 62k | 121.30 | |
| Lincoln Educational Services Corporation (LINC) | 0.3 | $7.5M | 309k | 24.15 | |
| First Merchants Corporation (FRME) | 0.3 | $7.3M | 196k | 37.48 | |
| Eton Pharmaceuticals (ETON) | 0.3 | $7.3M | 431k | 16.91 | |
| CRA International (CRAI) | 0.3 | $7.2M | 36k | 200.69 | |
| Huron Consulting (HURN) | 0.3 | $7.2M | 42k | 172.91 | |
| Precision Drill (PDS) | 0.3 | $7.2M | 100k | 71.88 | |
| Fastly Inc cl a (FSLY) | 0.3 | $7.0M | 690k | 10.18 | |
| Malibu Boats (MBUU) | 0.3 | $6.9M | 244k | 28.21 | |
| Radware Ltd ord (RDWR) | 0.2 | $6.8M | 282k | 24.09 | |
| Hawkins (HWKN) | 0.2 | $6.6M | 47k | 142.06 | |
| Pagaya Technologies (PGY) | 0.2 | $6.4M | 306k | 20.90 | |
| Newpark Resources (NPKI) | 0.2 | $6.1M | 509k | 11.92 | |
| Expro Group Holdings Nv (XPRO) | 0.2 | $6.0M | 446k | 13.35 | |
| Coursera (COUR) | 0.2 | $5.9M | 807k | 7.36 | |
| Red Violet (RDVT) | 0.2 | $5.9M | 103k | 56.95 | |
| Powerfleet (AIOT) | 0.2 | $5.8M | 1.1M | 5.32 | |
| Tactile Systems Technology, In (TCMD) | 0.2 | $5.8M | 199k | 29.00 | |
| VSE Corporation (VSEC) | 0.2 | $5.8M | 33k | 172.77 | |
| Wayside Technology (CLMB) | 0.2 | $5.3M | 52k | 102.79 | |
| 1st Source Corporation (SRCE) | 0.2 | $5.3M | 85k | 62.49 | |
| Bioventus Inc - A (BVS) | 0.2 | $4.6M | 617k | 7.44 | |
| Gorman-Rupp Company (GRC) | 0.2 | $4.5M | 93k | 47.75 | |
| Lindblad Expeditions Hldgs I (LIND) | 0.2 | $4.4M | 307k | 14.42 | |
| LSI Industries (LYTS) | 0.1 | $3.2M | 173k | 18.32 | |
| Matrix Service Company (MTRX) | 0.1 | $2.7M | 227k | 11.70 | |
| Backblaze (BLZE) | 0.1 | $2.6M | 552k | 4.66 | |
| Shopify Inc cl a (SHOP) | 0.1 | $2.1M | 13k | 160.97 | |
| Futu Hldgs (FUTU) | 0.1 | $1.8M | 11k | 164.21 | |
| SPDR S&P 500 ETF Trust Etf (SPY) | 0.1 | $1.4M | 2.1k | 681.90 | |
| Microsoft Corporation (MSFT) | 0.0 | $1.3M | 2.7k | 483.62 | |
| Micron Technology (MU) | 0.0 | $1.3M | 4.5k | 285.41 | |
| Huazhu Group (HTHT) | 0.0 | $1.1M | 24k | 47.05 | |
| JPMorgan Chase & Co. (JPM) | 0.0 | $983k | 3.1k | 322.21 | |
| Apple (AAPL) | 0.0 | $945k | 3.5k | 271.83 | |
| Alphabet Inc Class A cs (GOOGL) | 0.0 | $595k | 1.9k | 313.01 | |
| Alphabet Inc Class C cs (GOOG) | 0.0 | $508k | 1.6k | 313.80 | |
| Travelers Companies (TRV) | 0.0 | $459k | 1.6k | 290.07 | |
| Johnson & Johnson (JNJ) | 0.0 | $424k | 2.1k | 206.93 | |
| MasterCard Incorporated (MA) | 0.0 | $378k | 662.00 | 570.49 | |
| ResMed (RMD) | 0.0 | $349k | 1.5k | 240.87 | |
| Amgen (AMGN) | 0.0 | $339k | 1.0k | 327.35 | |
| Bank of New York Mellon Corporation (BK) | 0.0 | $296k | 2.6k | 116.07 | |
| Newmont Mining Corporation (NEM) | 0.0 | $287k | 2.9k | 99.86 | |
| Wells Fargo Co New Perp P PFD (WFC.PL) | 0.0 | $273k | 225.00 | 1212.00 | |
| SPDR Gold Shares ETF Etf (GLD) | 0.0 | $268k | 675.00 | 396.31 | |
| McDonald's Corporation (MCD) | 0.0 | $261k | 853.00 | 305.72 | |
| Caterpillar (CAT) | 0.0 | $256k | 448.00 | 572.24 | |
| Wal-Mart Stores (WMT) | 0.0 | $244k | 2.2k | 111.39 | |
| AFLAC Incorporated (AFL) | 0.0 | $221k | 2.0k | 110.27 | |
| Xenacare Hldgs | 0.0 | $0 | 140k | 0.00 |
