# EDGAR Filing Document

**Accession Number:** 0000803020
**File Stem:** 0001213900-26-062543
**Filing Date:** 2026-5
**Character Count:** 55362
**Document Hash:** 56ad07845b57654604a581fcd1e951c2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-062543.hdr.sgml**: 20260529

**ACCESSION NUMBER**: 0001213900-26-062543

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260529

**DATE AS OF CHANGE**: 20260529

**PERIOD START**: 20261231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OBERWEIS FUNDS
- **CENTRAL INDEX KEY:** 0000803020

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-04854
- **FILM NUMBER:** 261040075

**BUSINESS ADDRESS:**
- **STREET 1:** 3333 WARRENVILLE ROAD
- **STREET 2:** SUITE 500
- **CITY:** LISLE
- **STATE:** IL
- **ZIP:** 60532
- **BUSINESS PHONE:** 6305772300

**MAIL ADDRESS:**
- **STREET 1:** 3333 WARRENVILLE ROAD
- **STREET 2:** SUITE 500
- **CITY:** LISLE
- **STATE:** IL
- **ZIP:** 60532

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** OBERWEIS FUND
- **DATE OF NAME CHANGE:** 19960821

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** OBERWEIS EMERGING GROWTH FUND /IL/
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### Oberweis Global Opportunities Fund (Series ID: S000010230)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000028299 | Investor Class      | OBEGX           |
| C000186089 | Institutional Class | OBGIX           |

## Nport-Ex

Oberweis Micro-Cap Fund

Schedule of Investments (unaudited)

March 31, 2026

---

| | | | |
|:---|:---|:---|:---|
| | | **Shares** | **Value** |
| **Equities** | ***97.8*** *%*** |  |  |
| ***Aerospace & Defense*** | ***1.7*** *%*** |  |  |
| Ducommun, Inc.\* |  | 95700 | $11675400 |
| VSE Corp. |  | 32600 | 6011439 |
|  |  |  | 17686839 |
| ***Banks*** | ***2.3*** *%*** |  |  |
| 1st Source Corp. |  | 82700 | 5723667 |
| FB Financial Corp. |  | 155400 | 8071476 |
| Nicolet Bankshares, Inc. |  | 71600 | 10641192 |
|  |  |  | 24436335 |
| ***Beverages*** | ***0.6*** *%*** |  |  |
| The Vita Coco Co., Inc.\* |  | 129500 | 6204345 |
| ***Biotechnology*** | ***3.8*** *%*** |  |  |
| Catalyst Pharmaceuticals, Inc.\* |  | 690300 | 17091828 |
| Kiniksa Pharmaceuticals International PLC\* |  | 305200 | 14695380 |
| Veracyte, Inc.\* |  | 238500 | 7682085 |
|  |  |  | 39469293 |
| ***Commercial Services & Supplies*** | ***1.0*** *%*** |  |  |
| Interface, Inc. |  | 425300 | 10598476 |
| ***Communications Equipment*** | ***8.7*** *%*** |  |  |
| Applied Optoelectronics, Inc.\* |  | 1074015 | 90850929 |
| ***Construction & Engineering*** | ***6.6*** *%*** |  |  |
| Argan, Inc. |  | 31700 | 17265405 |
| Primoris Services Corp. |  | 159400 | 22800576 |
| Tutor Perini Corp. |  | 377800 | 29162382 |
|  |  |  | 69228363 |
| ***Consumer Finance*** | ***2.5*** *%*** |  |  |
| Dave, Inc.\* |  | 64022 | 11145590 |
| EZCORP, Inc.\* |  | 612900 | 15555402 |
|  |  |  | 26700992 |
| ***Diversified Consumer Services*** | ***2.8*** *%*** |  |  |
| American Public Education, Inc.\* |  | 125200 | 7121376 |
| Coursera, Inc.\* |  | 787300 | 4582086 |
| Lincoln Educational Services Corp.\* |  | 180500 | 7342740 |
| OneSpaWorld Hldgs. Ltd. |  | 465400 | 10680930 |
|  |  |  | 29727132 |
| ***Electrical Equipment*** | ***6.5*** *%*** |  |  |
| American Superconductor Corp.\* |  | 785200 | 26579020 |
| Amprius Technologies, Inc.\* |  | 561500 | 9466890 |
| Babcock & Wilcox Enterprises, Inc.\* |  | 480100 | 7052669 |
| Powell Industries, Inc. |  | 32800 | 17747424 |
| Thermon Group Hldgs., Inc.\* |  | 148300 | 7474320 |
|  |  |  | 68320323 |
| ***Electronic Equipment, Instruments & Components*** | ***7.5*** *%*** |  |  |
| Arlo Technologies, Inc.\* |  | 942800 | 13416044 |
| Benchmark Electronics, Inc. |  | 193600 | 10853216 |
| Climb Global Solutions, Inc.\* |  | 202800 | 4019496 |
| ePlus, Inc. |  | 131798 | 9917800 |
| Evolv Technologies Hldgs., Inc.\* |  | 1604700 | 9708435 |
| Knowles Corp.\* |  | 224600 | 5767728 |
| nLight, Inc.\* |  | 347800 | 19831556 |
| PC Connection, Inc. |  | 92300 | 5395858 |
|  |  |  | 78910133 |
| ***Energy Equipment & Services*** | ***3.0*** *%*** |  |  |
| Expro Group Hldgs. NV\* |  | 435500 | 7582055 |
| Precision Drilling Corp.\* |  | 108100 | 10637039 |
| ProPetro Hldg. Corp.\* |  | 925000 | 13329250 |
|  |  |  | 31548344 |
| ***Entertainment*** | ***2.0*** *%*** |  |  |
| IMAX Corp.\* |  | 553700 | 21046137 |
| ***Healthcare Equipment & Supplies*** | ***7.0*** *%*** |  |  |
| Alphatec Hldgs., Inc.\* |  | 929322 | 10111023 |
| Artivion, Inc.\* |  | 211800 | 7756116 |
| Axogen, Inc.\* |  | 328100 | 10869953 |
| Bioventus, Inc.\* |  | 601714 | 5493649 |
| LeMaitre Vascular, Inc. |  | 132700 | 14486859 |
| LivaNova PLC\* |  | 308900 | 19633684 |
| Tactile Systems Technology, Inc.\* |  | 194300 | 5077059 |
|  |  |  | 73428343 |
| ***Healthcare Providers & Services*** | ***2.8*** *%*** |  |  |
| GeneDx Hldgs. Corp.\* |  | 241800 | 15528396 |
| Pediatrix Medical Group, Inc.\* |  | 672600 | 14386914 |
|  |  |  | 29915310 |
| ***Hotels, Restaurants & Leisure*** | ***3.6*** *%*** |  |  |
| Black Rock Coffee Bar, Inc.\* |  | 350900 | 4533628 |
| Lindblad Expeditions Hldgs., Inc. \* |  | 363200 | 6283360 |
| Rush Street Interactive, Inc.\* |  | 1257200 | 27344100 |
|  |  |  | 38161088 |
| ***Household Durables*** | ***0.9*** *%*** |  |  |
| M/I Homes, Inc.\* |  | 73200 | 8963340 |
| ***Information Technology Services*** | ***2.8*** *%*** |  |  |
| Fastly, Inc.\* |  | 1028000 | 29873680 |
| ***Insurance*** | ***1.3*** *%*** |  |  |
| Skyward Specialty Insurance Group, Inc.\* |  | 314000 | 13715520 |
| ***Life Sciences Tools & Services*** | ***1.0*** *%*** |  |  |
| Adaptive Biotechnologies Corp.\* |  | 774600 | 10751448 |
| ***Machinery*** | ***3.3*** *%*** |  |  |
| Blue Bird Corp.\* |  | 373400 | 21205386 |
| CECO Environmental Corp.\* |  | 129708 | 7728003 |
| The Gorman-Rupp Corp. |  | 90900 | 5647617 |
|  |  |  | 34581006 |
| ***Media*** | ***0.7*** *%*** |  |  |
| Magnite, Inc.\* |  | 620400 | 7370352 |
| ***Pharmaceuticals*** | ***6.0*** *%*** |  |  |
| ANI Pharmaceuticals, Inc.\* |  | 212500 | 16341250 |
| CorMedix, Inc.\* |  | 1162400 | 7892696 |
| Eton Pharmaceuticals, Inc.\* |  | 420900 | 10387812 |
| Liquidia Corp.\* |  | 357200 | 13480728 |
| Phibro Animal Health Corp. |  | 265800 | 14701398 |
|  |  |  | 62803884 |
| ***Professional Services*** | ***1.1*** *%*** |  |  |
| CRA International, Inc. |  | 34900 | 5649612 |
| Huron Consulting Group, Inc.\* |  | 40500 | 5163345 |
| IBEX Hldgs. Ltd.\* |  | 9700 | 260154 |
|  |  |  | 11073111 |
| ***Semiconductors & Semiconductor Equipment*** | ***12.3*** *%*** |  |  |
| Ambarella, Inc.\* |  | 255300 | 13141568 |
| Camtek Ltd.\* |  | 213580 | 32380864 |
| Diodes, Inc.\* |  | 215300 | 14696378 |
| Silicon Motion Technology Corp. ADS |  | 271200 | 30453048 |
| Ultra Clean Hldgs., Inc.\* |  | 613300 | 38134994 |
|  |  |  | 128806852 |
| ***Software*** | ***2.1*** *%*** |  |  |
| A10 Networks, Inc. |  | 484100 | 11192392 |
| Radware Ltd.\* |  | 274700 | 7230104 |
| Red Violet, Inc.\* |  | 100300 | 3470380 |
|  |  |  | 21892876 |
| ***Specialty Retail*** | ***2.8*** *%*** |  |  |
| Boot Barn Hldgs., Inc.\* |  | 65500 | 9586580 |
| National Vision Hldgs., Inc.\* |  | 765600 | 19829040 |
|  |  |  | 29415620 |
| ***Textiles, Apparel & Luxury Goods*** | ***0.4*** *%*** |  |  |
| Rocky Brands, Inc. |  | 113200 | 4383104 |
| ***Trading Co. & Distribution*** | ***0.7*** *%*** |  |  |
| NPK International, Inc.\* |  | 496500 | 7194285 |
| ***Total Equities*** |  |  |  |
| (Cost: $650,488,692) |  |  | $1027057460 |
| ***Total Investments*** | ***97.8*** *%*** |  |  |
| (Cost: $650,488,692) |  |  | $1027057460 |
| Other Assets in Excess of Liabilities | ***2.2*** *%*** |  | 23151594 |
| ***Net Assets - 100%*** |  |  | $**1050209054** |

---

\* Non-income producing security during the period ended March 31, 2026

ADS - American depositary share

Oberweis Small-Cap Opportunities Fund

Schedule of Investments (unaudited)

March 31, 2026

---

| | | | |
|:---|:---|:---|:---|
| | | **Shares** | **Value** |
| ***Equities*** | ***98.6*** *%*** |  |  |
| ***Aerospace & Defense*** | ***5.4*** *%*** |  |  |
| AAR Corp.\* |  | 217300 | $23785658 |
| Carpenter Technology Corp. |  | 80100 | 31571415 |
| Leonardo DRS, Inc. |  | 398500 | 17741220 |
| Mercury Systems, Inc.\* |  | 333600 | 24322776 |
| Moog, Inc.\* |  | 39800 | 11647072 |
|  |  |  | 109068141 |
| ***Automobile Components*** | ***2.4*** *%*** |  |  |
| Dana, Inc. |  | 1427000 | 48018550 |
| ***Banks*** | ***1.4*** *%*** |  |  |
| Ameris Bancorp. |  | 233500 | 18210665 |
| Seacoast Banking Corp of Florida |  | 336000 | 10177440 |
|  |  |  | 28388105 |
| ***Biotechnology*** | ***2.8*** *%*** |  |  |
| Arcutis Biotherapeutics, Inc.\* |  | 1211800 | 28550008 |
| Halozyme Therapeutics, Inc.\* |  | 186200 | 12034106 |
| Veracyte, Inc.\* |  | 486500 | 15670165 |
|  |  |  | 56254279 |
| ***Building Products*** | ***0.7*** *%*** |  |  |
| Zurn Elkay Water Solutions Corp. |  | 312400 | 14008016 |
| ***Communications Equipment*** | ***15.0*** *%*** |  |  |
| Applied Optoelectronics, Inc.\* |  | 1071126 | 90606548 |
| Calix, Inc.\* |  | 297000 | 14550030 |
| Lumentum Hldgs., Inc.\* |  | 228700 | 160721212 |
| Viavi Solutions, Inc.\* |  | 525700 | 17495296 |
| Vistance Networks, Inc.\* |  | 960912 | 17488598 |
|  |  |  | 300861684 |
| ***Commercial Services & Supplies*** | ***1.7*** *%*** |  |  |
| Clean Harbors, Inc.\* |  | 117000 | 33547410 |
| ***Construction & Engineering*** | ***3.0*** *%*** |  |  |
| Arcosa, Inc. |  | 237400 | 25197636 |
| Everus Construction Group, Inc.\* |  | 289500 | 34178370 |
|  |  |  | 59376006 |
| ***Consumer Finance*** | ***1.4*** *%*** |  |  |
| FirstCash Hldgs., Inc. |  | 146800 | 27598400 |
| ***Diversified Consumer Services*** | ***2.5*** *%*** |  |  |
| Frontdoor, Inc.\* |  | 633800 | 33502668 |
| Grand Canyon Education, Inc.\* |  | 103500 | 17598105 |
|  |  |  | 51100773 |
| ***Electronic Equipment, Instruments & Components*** | ***4.3*** *%*** |  |  |
| Advanced Energy Industries, Inc. |  | 43600 | 14070156 |
| Fabrinet\* |  | 26700 | 13924584 |
| Littelfuse, Inc. |  | 63500 | 21548725 |
| Mirion Technologies, Inc.\* |  | 659600 | 12261964 |
| OSI Systems, Inc.\* |  | 94500 | 25090695 |
|  |  |  | 86896124 |
| ***Energy Equipment & Services*** | ***1.3*** *%*** |  |  |
| Solaris Energy Infrastructure, Inc. |  | 471400 | 26638814 |
| ***Financial Services*** | ***1.9*** *%*** |  |  |
| Chime Financial, Inc.\* |  | 918800 | 17209124 |
| Remitly Global, Inc.\* |  | 1289700 | 20209599 |
|  |  |  | 37418723 |
| ***Healthcare Equipment & Supplies*** | ***5.8*** *%*** |  |  |
| Alphatec Hldgs., Inc.\* |  | 789400 | 8588672 |
| Envista Hldgs. Corp.\* |  | 590300 | 14975911 |
| Globus Medical, Inc.\* |  | 347900 | 29975064 |
| ICU Medical, Inc.\* |  | 171500 | 22149225 |
| iRhythm Technologies, Inc.\* |  | 138600 | 16357572 |
| Merit Medical Systems, Inc.\* |  | 359500 | 24780335 |
|  |  |  | 116826779 |
| ***Healthcare Providers & Services*** | ***5.9*** *%*** |  |  |
| Addus HomeCare Corp.\* |  | 78200 | 7323430 |
| Alignment Healthcare, Inc.\* |  | 857300 | 15105626 |
| BrightSpring Health Services, Inc.\* |  | 1026800 | 43751948 |
| Encompass Health Corp. |  | 245900 | 23785907 |
| HealthEquity, Inc.\* |  | 139100 | 11624587 |
| Hinge Health, Inc.\* |  | 412816 | 15918185 |
|  |  |  | 117509683 |
| ***Healthcare Technology*** | ***1.2*** *%*** |  |  |
| Waystar Hldg. Corp.\* |  | 977600 | 23569936 |
| ***Hotels, Restaurants & Leisure*** | ***4.2*** *%*** |  |  |
| Dutch Bros, Inc.\* |  | 530600 | 26880196 |
| Life Time Group Hldgs., Inc.\* |  | 1028600 | 27710484 |
| Shake Shack, Inc.\* |  | 166500 | 14730255 |
| Super Group SGHC Ltd. |  | 1342200 | 14495760 |
|  |  |  | 83816695 |
| ***Household Durables*** | ***2.6*** *%*** |  |  |
| SharkNinja, Inc.\* |  | 500600 | 53013540 |
| ***Information Technology Services*** | ***3.3*** *%*** |  |  |
| DigitalOcean Hldgs., Inc.\* |  | 770300 | 66076334 |
| ***Insurance*** | ***1.0*** *%*** |  |  |
| Assurant, Inc. |  | 90900 | 19798929 |
| ***Machinery*** | ***3.3*** *%*** |  |  |
| Federal Signal Corp. |  | 237600 | 25694064 |
| Flowserve Corp. |  | 351000 | 25802010 |
| SPX Technologies, Inc.\* |  | 74000 | 14795560 |
|  |  |  | 66291634 |
| ***Media*** | ***0.8*** *%*** |  |  |
| The New York Times Co. |  | 187700 | 15716121 |
| ***Oil, Gas & Consumable Fuels*** | ***2.8*** *%*** |  |  |
| Core Natural Resources, Inc. |  | 239300 | 25061889 |
| Magnolia Oil & Gas Corp. |  | 402900 | 12719553 |
| Matador Resources Co. |  | 277200 | 17513496 |
|  |  |  | 55294938 |
| ***Passenger Airlines*** | ***1.5*** *%*** |  |  |
| SkyWest, Inc.\* |  | 330800 | 30377364 |
| ***Pharmaceuticals*** | ***0.9*** *%*** |  |  |
| Indivior PLC\* |  | 579641 | 17667458 |
| ***Professional Services*** | ***1.0*** *%*** |  |  |
| Genpact Ltd. |  | 518900 | 19329025 |
| ***Semiconductors & Semiconductor Equipment*** | ***14.2*** *%*** |  |  |
| Credo Technology Group Hldg. Ltd.\* |  | 856748 | 80422935 |
| Impinj, Inc.\* |  | 98000 | 10064600 |
| Lattice Semiconductor Corp.\* |  | 331936 | 30790383 |
| MACOM Technology Solutions Hldgs., Inc.\* |  | 163800 | 36375066 |
| Nova Ltd.\* |  | 122200 | 53069016 |
| Rambus, Inc.\* |  | 436600 | 37560698 |
| SiTime Corp.\* |  | 105796 | 36536649 |
|  |  |  | 284819347 |
| ***Software*** | ***3.8*** *%*** |  |  |
| Box, Inc.\* |  | 655600 | 15498384 |
| InterDigital, Inc. |  | 37900 | 11445800 |
| Pegasystems, Inc. |  | 374400 | 15934464 |
| Q2 Hldgs., Inc.\* |  | 322800 | 15268440 |
| Qualys, Inc.\* |  | 105400 | 9259390 |
| Zeta Global Hldgs. Corp.\* |  | 607700 | 9674584 |
|  |  |  | 77081062 |
| ***Specialty Retail*** | ***1.6*** *%*** |  |  |
| American Eagle Outfitters, Inc. |  | 926800 | 15477560 |
| Urban Outfitters, Inc.\* |  | 279000 | 17674650 |
|  |  |  | 33152210 |
| ***Textiles, Apparel & Luxury Goods*** | ***0.9*** *%*** |  |  |
| Levi Strauss & Co. |  | 1032900 | 19098321 |
| ***Total Equities*** |  |  |  |
| (Cost: $1,472,519,101) |  |  | $1978614401 |
| ***Total Investments*** | ***98.6*** *%*** |  |  |
| (Cost: $1,472,519,101) |  |  | $1978614401 |
| Other Assets in Excess of Liabilities | ***1.4*** *%*** |  | 28799301 |
| ***Net Assets - 100%*** |  |  | $**2007413702** |

---

\* Non-income producing security during the period ended March 31, 2026

Oberweis Global Opportunities Fund

Schedule of Investments (unaudited) <sup>a</sup>

March 31, 2026

---

| | | | |
|:---|:---|:---|:---|
| | | **Shares** | **Value** |
| **Equities** | ***98.0*** *%*** |  |  |
| ***Canada*** | ***2.8*** *%*** |  |  |
| Aritzia, Inc.\* |  | 9100 | $742601 |
| AtkinsRealis Group, Inc. |  | 13600 | 874991 |
|  |  |  | 1617592 |
| ***China*** | ***1.6*** *%*** |  |  |
| American Superconductor Corp.\* |  | 27500 | 930875 |
| ***Hong Kong*** | ***1.0*** *%*** |  |  |
| Futu Hldgs. Ltd. ADS\* |  | 4300 | 588068 |
| ***Italy*** | ***1.1*** *%*** |  |  |
| De' Longhi SpA\* |  | 18000 | 632586 |
| ***Japan*** | ***11.5*** *%*** |  |  |
| Food & Life Cos. Ltd.\* |  | 21200 | 1264745 |
| Mitsui E&S Co. Ltd. |  | 35600 | 1303476 |
| Ryohin Keikaku Co. Ltd. |  | 74000 | 1579131 |
| Sumitomo Pharma Co. Ltd.\* |  | 115800 | 1579793 |
| Taisei Corp. |  | 8700 | 901335 |
|  |  |  | 6628480 |
| ***Norway*** | ***2.4*** *%*** |  |  |
| Storebrand ASA\* |  | 77800 | 1404273 |
| ***Sweden*** | ***1.0*** *%*** |  |  |
| BHG Group AB\* |  | 233500 | 573224 |
| ***Switzerland*** | ***2.6*** *%*** |  |  |
| Accelleron Industries AG\* |  | 16400 | 1482334 |
| ***United Kingdom*** | ***17.3*** *%*** |  |  |
| Ashmore Group PLC |  | 286500 | 801669 |
| Ashtead Technology Hldgs. PLC\* |  | 247100 | 1373555 |
| Babcock International Group PLC |  | 38300 | 594606 |
| Cranswick PLC |  | 18700 | 1294520 |
| Diploma PLC |  | 20000 | 1596871 |
| Games Workshop Group PLC |  | 7200 | 1702091 |
| Hiscox Ltd.\* |  | 34500 | 696398 |
| IMI PLC\* |  | 43300 | 1473054 |
| Volution Group PLC |  | 61200 | 461734 |
|  |  |  | 9994498 |
| ***United States of America*** | ***56.7*** *%*** |  |  |
| Alphatec Hldgs., Inc.\* |  | 42600 | 463488 |
| Ambarella, Inc.\* |  | 10200 | 525045 |
| Applied Optoelectronics, Inc.\* |  | 31500 | 2664585 |
| Box, Inc.\* |  | 28400 | 671376 |
| Carpenter Technology Corp. |  | 3600 | 1418940 |
| Catalyst Pharmaceuticals, Inc.\* |  | 37300 | 923548 |
| Clean Harbors, Inc.\* |  | 4200 | 1204266 |
| Credo Technology Group Hldg. Ltd.\* |  | 27600 | 2590812 |
| DigitalOcean Hldgs., Inc.\* |  | 21800 | 1870004 |
| Flowserve Corp. |  | 17700 | 1301127 |
| GeneDx Hldgs. Corp.\* |  | 5500 | 353210 |
| Genpact Ltd. |  | 18400 | 685400 |
| Halozyme Therapeutics, Inc.\* |  | 9200 | 594596 |
| HealthEquity, Inc.\* |  | 7700 | 643489 |
| ICU Medical, Inc.\* |  | 5000 | 645750 |
| Impinj, Inc.\* |  | 6700 | 688090 |
| LeMaitre Vascular, Inc. |  | 9500 | 1037115 |
| Lumentum Hldgs., Inc.\* |  | 3800 | 2670488 |
| MACOM Technology Solutions Hldgs., Inc.\* |  | 6300 | 1399041 |
| Merit Medical Systems, Inc.\* |  | 8700 | 599691 |
| Pegasystems, Inc. |  | 11000 | 468160 |
| Q2 Hldgs., Inc.\* |  | 11300 | 534490 |
| Rambus, Inc.\* |  | 15600 | 1342068 |
| Rush Street Interactive, Inc.\* |  | 49800 | 1083150 |
| SharkNinja, Inc.\* |  | 17100 | 1810890 |
| SkyWest, Inc.\* |  | 8700 | 798921 |
| The Vita Coco Co., Inc.\* |  | 19500 | 934245 |
| Veracyte, Inc.\* |  | 34200 | 1101582 |
| Waystar Hldg. Corp.\* |  | 27600 | 665436 |
| Zeta Global Hldgs. Corp.\* |  | 72000 | 1146240 |
|  |  |  | 32835243 |
| ***Total Equities*** |  |  |  |
| (Cost: $46,485,137) |  |  | $56687173 |
| ***Total Investments*** | ***98.0*** *%*** |  |  |
| (Cost: $46,485,137) |  |  | $56687173 |
| Other Assets in Excess of Liabilities | ***2.0*** *%*** |  | 1155352 |
| ***Net Assets - 100%*** |  |  | $**57842525** |

---

<sup>a</sup> Certain securities were fair valued under the discretion of the Board of Trustees

\* Non-income producing security during the period ended March 31, 2026

ADS - American depositary share

---

| | |
|:---|:---|
| **SECTOR ALLOCATIONS (As a Percentage of Net Assets)** | |
| Consumer Discretionary | 16.2% |
| Consumer Staples | 3.9% |
| Financials | 6.0% |
| Healthcare | 14.9% |
| Industrials | 28.4% |
| Information Technology | 28.6% |

---

Oberweis China Opportunities Fund

Schedule of Investments (unaudited) <sup>a</sup>

March 31, 2026

---

| | | | |
|:---|:---|:---|:---|
| | | **Shares** | **Value** |
| **Equities** | ***96.1*** *%*** |  |  |
| ***Banks*** | ***8.4*** *%*** |  |  |
| BOC Hong Kong Hldgs. Ltd.\* |  | 220000 | $1213743 |
| China Construction Bank Corp. |  | 1600000 | 1726736 |
| HSBC Hldgs. PLC |  | 97200 | 1589157 |
|  |  |  | 4529636 |
| ***Biotechnology*** | ***0.6*** *%*** |  |  |
| BeOne Medicines Ltd.\* |  | 15000 | 336486 |
| ***Broadline Retail*** | ***6.7*** *%*** |  |  |
| Alibaba Group Hldg. Ltd.\* |  | 230000 | 3605132 |
| ***Capital Markets*** | ***1.9*** *%*** |  |  |
| Hong Kong Exchanges & Clearing Ltd. |  | 20000 | 1008960 |
| ***Chemicals*** | ***2.2*** *%*** |  |  |
| Ganfeng Lithium Group Co. Ltd.\* |  | 35000 | 331898 |
| Zhejiang NHU Co. Ltd.\* |  | 170060 | 855425 |
|  |  |  | 1187323 |
| ***Communications Equipment*** | ***3.2*** *%*** |  |  |
| Yangtze Optical Fibre & Cable Joint Stock Ltd. Co.\* |  | 70000 | 1691550 |
| ***Construction Materials*** | ***1.2*** *%*** |  |  |
| China Jushi Co. Ltd.\* |  | 185000 | 661267 |
| ***Electrical Equipment*** | ***7.1*** *%*** |  |  |
| Contemporary Amperex Technology Co. Ltd.\* |  | 19000 | 1124155 |
| Harbin Electric Co. Ltd.\* |  | 550000 | 1485432 |
| Sieyuan Electric Co. Ltd.\* |  | 7000 | 207032 |
| Wasion Hldgs. Ltd.\* |  | 272000 | 987448 |
|  |  |  | 3804067 |
| ***Electronic Equipment, Instruments & Components*** | ***12.8*** *%*** |  |  |
| Delta Electronics, Inc.\* |  | 30000 | 1352711 |
| Elite Material Co. Ltd.\* |  | 20000 | 1706929 |
| Gold Circuit Electronics Ltd.\* |  | 28000 | 789541 |
| Kingboard Laminates Hldgs. Ltd.\* |  | 240000 | 597637 |
| Shenzhen Sunlord Electronics Co. Ltd.\* |  | 65500 | 326352 |
| Unimicron Technology Corp.\* |  | 55000 | 804780 |
| Universal Scientific Industrial Shanghai Co. Ltd.\* |  | 65000 | 317885 |
| WPG Hldgs. Ltd.\* |  | 100000 | 280027 |
| WT Microelectronics Co. Ltd.\* |  | 100000 | 693074 |
|  |  |  | 6868936 |
| ***Energy Equipment & Services*** | ***1.4*** *%*** |  |  |
| China Oilfield Services Ltd.\* |  | 636000 | 728725 |
| ***Hotels, Restaurants & Leisure*** | ***2.5*** *%*** |  |  |
| Galaxy Entertainment Group Ltd.\* |  | 30000 | 135597 |
| H World Group Ltd.\* |  | 24000 | 1206960 |
|  |  |  | 1342557 |
| ***Insurance*** | ***4.7*** *%*** |  |  |
| AIA Group Ltd.\* |  | 95000 | 1055576 |
| New China Life Insurance Co. Ltd.\* |  | 107000 | 637017 |
| Ping An Insurance Group Co of China Ltd.\* |  | 108000 | 830436 |
|  |  |  | 2523029 |
| ***Interactive Media & Services*** | ***6.5*** *%*** |  |  |
| Tencent Hldgs. Ltd.\* |  | 55000 | 3468981 |
| ***Machinery*** | ***6.3*** *%*** |  |  |
| CIMC Enric Hldgs. Ltd.\* |  | 666000 | 856155 |
| Sany Heavy Equipment International Hldgs. Co. Ltd.\* |  | 78000 | 110757 |
| SBT Ultrasonic Technology Co. Ltd.\* |  | 24000 | 373949 |
| Techtronic Industries Co. Ltd.\* |  | 36000 | 478089 |
| Tianrun Industry Technology Co. Ltd.\* |  | 380000 | 503848 |
| Weichai Power Co. Ltd.\* |  | 295000 | 1046138 |
|  |  |  | 3368936 |
| ***Metals & Mining*** | ***5.5*** *%*** |  |  |
| China Hongqiao Group Ltd.\* |  | 185000 | 835683 |
| Chuangxin Industries Hldgs. Ltd.\* |  | 140000 | 521651 |
| Jiaxin International Resources Investment Ltd.\* |  | 35200 | 474378 |
| Zijin Mining Group Co. Ltd.\* |  | 254000 | 1142619 |
|  |  |  | 2974331 |
| ***Oil, Gas & Consumable Fuels*** | ***5.6*** *%*** |  |  |
| China Shenhua Energy Co. Ltd.\* |  | 150000 | 887876 |
| COSCO SHIPPING Energy Transportation Co. Ltd.\* |  | 446000 | 1019841 |
| PetroChina Co. Ltd.\* |  | 450000 | 617335 |
| Yankuang Energy Group Co. Ltd.\* |  | 250000 | 465477 |
|  |  |  | 2990529 |
| ***Real Estate Management & Development*** | ***3.5*** *%*** |  |  |
| China Resources Mixc Lifestyle Services Ltd.\* |  | 180000 | 1087649 |
| Sun Hung Kai Properties Ltd. |  | 48500 | 807565 |
|  |  |  | 1895214 |
| ***Semiconductors & Semiconductor Equipment*** | ***12.5*** *%*** |  |  |
| ACM Research, Inc.\* |  | 13000 | 511550 |
| ASE Technology Hldg. Co. Ltd.\* |  | 92000 | 1012567 |
| Innostar Service, Inc.\* |  | 20000 | 816372 |
| Micron Technology, Inc. |  | 700 | 236488 |
| Taiwan Semiconductor Manufacturing Co. Ltd. |  | 43000 | 2486885 |
| WinWay Technology Co. Ltd.\* |  | 7000 | 1655854 |
|  |  |  | 6719716 |
| ***Software*** | ***2.0*** *%*** |  |  |
| Minimax Group, Inc.\* |  | 9000 | 1066865 |
| ***Technology Hardware, Storage & Peripherals*** | ***1.5*** *%*** |  |  |
| Asia Vital Components Co. Ltd.\* |  | 12000 | 792594 |
| ***Total Equities*** |  |  |  |
| (Cost: $40,753,272) |  |  | $51564834 |
| ***Short-Term Investments*** | ***2.4*** *%*** |  |  |
| Fidelity Investments Money Market Government Portfolio Class I 3.53%<sup>b</sup> |  | 1257236 | 1257236 |
| ***Total Short-Term Investments*** |  |  |  |
| (Cost: $1,257,236) |  |  | $1257236 |
| ***Total Investments*** | ***98.5*** *%*** |  |  |
| (Cost: $42,010,508) |  |  | $52822070 |
| Other Assets in Excess of Liabilities | ***1.5*** *%*** |  | 820446 |
| ***Net Assets - 100%*** |  |  | $**53642516** |

---

<sup>a</sup> Certain securities were fair valued under the discretion of the Board of Trustees

<sup>b</sup> Annualized seven-day effective yield as of March 31, 2026

\* Non-income producing security during the period ended March 31, 2026

ADS - American depositary share

---

| | |
|:---|:---|
| **COUNTRY ALLOCATION (As a Percentage of Net Assets)** | |
| China (Includes the People's Republic of China, Taiwan and Hong Kong) | 94.7% |
| USA | 1.4% |

---

Oberweis International Opportunities Fund

Schedule of Investments (unaudited) <sup>a</sup>

March 31, 2026

---

| | | | |
|:---|:---|:---|:---|
| | | **Shares** | **Value** |
| **Equities** | ***97.2*** *%*** |  |  |
| ***Australia*** | ***6.9*** *%*** |  |  |
| Charter Hall Group |  | 298100 | $3884349 |
| Genesis Minerals Ltd.\* |  | 1683900 | 7085764 |
| Mineral Resources Ltd.\* |  | 118200 | 4540335 |
| NRW Hldgs. Ltd. |  | 1142400 | 4232413 |
| Paladin Energy Ltd.\* |  | 422200 | 3362482 |
| Westgold Resources Ltd.\* |  | 656200 | 2760621 |
|  |  |  | 25865964 |
| ***Austria*** | ***1.6*** *%*** |  |  |
| DO & CO AG\* |  | 20200 | 3782247 |
| UNIQA Insurance Group AG\* |  | 130700 | 2289576 |
|  |  |  | 6071823 |
| ***Canada*** | ***16.3*** *%*** |  |  |
| Aritzia, Inc.\* |  | 79700 | 6503878 |
| AtkinsRealis Group, Inc. |  | 60700 | 3905291 |
| BRP, Inc. |  | 49400 | 3551147 |
| Capstone Copper Corp.\* |  | 126700 | 955419 |
| CES Energy Solutions Corp. |  | 712000 | 9422701 |
| Enerflex Ltd. |  | 364200 | 7618590 |
| Extendicare, Inc. |  | 229100 | 4334636 |
| First Majestic Silver Corp. |  | 175000 | 3751348 |
| Groupe Dynamite, Inc.\* |  | 92400 | 5087281 |
| IAMGOLD Corp.\* |  | 225500 | 4240587 |
| OceanaGold Corp. |  | 124200 | 3915903 |
| Orla Mining Ltd.\* |  | 229200 | 3685719 |
| Toromont Industries Ltd. |  | 28400 | 3976122 |
|  |  |  | 60948622 |
| ***Denmark*** | ***4.5*** *%*** |  |  |
| ALK-Abello A/S |  | 141100 | 4460990 |
| FLSmidth & Co A/S |  | 42200 | 3196923 |
| Jyske Bank A/S |  | 21100 | 2895394 |
| NKT A/S\* |  | 48600 | 6326795 |
|  |  |  | 16880102 |
| ***Finland*** | ***1.0*** *%*** |  |  |
| Konecranes Oyj |  | 111600 | 3662639 |
| ***Germany*** | ***3.6*** *%*** |  |  |
| DWS Group GmbH & Co KGaA\* |  | 84800 | 5462876 |
| flatexDEGIRO AG\* |  | 170600 | 5882959 |
| SUSS MicroTec SE\* |  | 34300 | 2039732 |
|  |  |  | 13385567 |
| ***Italy*** | ***2.9*** *%*** |  |  |
| Brunello Cucinelli SpA\* |  | 46800 | 4089878 |
| De' Longhi SpA\* |  | 194200 | 6824900 |
|  |  |  | 10914778 |
| ***Japan*** | ***32.2*** *%*** |  |  |
| Citizen Watch Co. Ltd. |  | 496900 | 5381083 |
| Enplas Corp. |  | 44700 | 3470586 |
| Food & Life Cos. Ltd.\* |  | 140800 | 8399817 |
| Fuji Corp. |  | 125300 | 3826036 |
| Fukuoka Financial Group, Inc. |  | 90400 | 3461919 |
| Furukawa Electric Co. Ltd. |  | 15000 | 2879703 |
| Ibiden Co Ltd. |  | 89500 | 4478625 |
| INFRONEER Hldgs., Inc. |  | 336400 | 4666996 |
| Japan Electronic Materials Corp. |  | 38700 | 1371192 |
| Kinden Corp. |  | 151300 | 6806759 |
| Kokusai Electric Corp. |  | 46600 | 1575765 |
| Mitsui E&S Co. Ltd. |  | 239100 | 8754526 |
| Mitsui Kinzoku Co. Ltd. |  | 38400 | 7283898 |
| Nissui Corp. |  | 729400 | 6217928 |
| Organo Corp. |  | 60400 | 5455056 |
| Ryohin Keikaku Co. Ltd. |  | 259600 | 5539762 |
| Santec Hldgs. Corp. |  | 20200 | 2232890 |
| Simplex Hldgs., Inc. |  | 617600 | 3174998 |
| Sumitomo Pharma Co. Ltd.\* |  | 389600 | 5315089 |
| Systena Corp. |  | 751900 | 1997534 |
| Taisei Corp. |  | 69900 | 7241762 |
| Takasago Thermal Engineering Co. Ltd. |  | 202900 | 5640783 |
| The Bank of Nagoya Ltd. |  | 57000 | 2102974 |
| The Yokohama Rubber Co. Ltd.\* |  | 124400 | 4773019 |
| Tokyo Ohka Kogyo Co. Ltd. |  | 85900 | 4203537 |
| Tokyo Seimitsu Co. Ltd. |  | 26100 | 2320820 |
| Yamaichi Electronics Co. Ltd. |  | 40800 | 2000977 |
|  |  |  | 120574034 |
| ***Netherlands*** | ***4.0*** *%*** |  |  |
| Koninklijke Heijmans NV\* |  | 72700 | 6516211 |
| SBM Offshore NV\* |  | 211000 | 8413857 |
|  |  |  | 14930068 |
| ***Norway*** | ***3.0*** *%*** |  |  |
| Kitron ASA\* |  | 237500 | 2292550 |
| Storebrand ASA\* |  | 504348 | 9103370 |
|  |  |  | 11395920 |
| ***Spain*** | ***1.2*** *%*** |  |  |
| Unicaja Banco SA\* |  | 1466900 | 4353228 |
| ***Sweden*** | ***0.9*** *%*** |  |  |
| Mycronic AB\* |  | 143800 | 3379366 |
| ***Switzerland*** | ***1.9*** *%*** |  |  |
| Accelleron Industries AG\* |  | 79300 | 7167625 |
| ***United Kingdom*** | ***16.3*** *%*** |  |  |
| Ashmore Group PLC |  | 1440300 | 4030171 |
| Babcock International Group PLC |  | 292900 | 4547258 |
| Cranswick PLC |  | 55300 | 3828180 |
| Diploma PLC |  | 83000 | 6627014 |
| Games Workshop Group PLC |  | 41350 | 9775206 |
| Genus PLC |  | 81640 | 2588977 |
| Greencore Group PLC |  | 806500 | 2588700 |
| Helios Towers PLC\* |  | 966400 | 2326651 |
| Hiscox Ltd.\* |  | 140400 | 2834036 |
| IMI PLC\* |  | 216116 | 7352206 |
| Lion Finance Group PLC |  | 15200 | 1886657 |
| Molten Ventures PLC\* |  | 781800 | 4765410 |
| Morgan Sindall Group PLC\* |  | 69500 | 3803872 |
| Schroders PLC |  | 477400 | 3675822 |
|  |  |  | 60630160 |
| ***United States of America*** | ***0.9*** *%*** |  |  |
| Coeur Mining, Inc. |  | 190772 | 3580790 |
| ***Total Equities*** |  |  |  |
| (Cost: $301,355,295) |  |  | $363740686 |
| ***Short-Term Investments*** | ***1.9*** *%*** |  |  |
| Fidelity Investments Money Market Government Portfolio Class I 3.53%<sup>b</sup> |  | 7481217 | 7481217 |
| ***Total Short-Term Investments*** |  |  |  |
| (Cost: $7,481,217) |  |  | $7481217 |
| ***Total Investments*** | ***99.1*** *%*** |  |  |
| (Cost: $308,836,512) |  |  | $371221903 |
| Other Assets in Excess of Liabilities | ***0.9*** *%*** |  | 3333582 |
| ***Net Assets - 100%*** |  |  | $**374555485** |

---

<sup>a</sup> Certain securities were fair valued under the discretion of the Board of Trustees

<sup>b</sup> Annualized seven-day effective yield as of March 31, 2026

\* Non-income producing security during the period ended March 31, 2026

---

| | |
|:---|:---|
| **SECTOR ALLOCATIONS (As a Percentage of Net Assets)** | |
| Communication Services | 0.6% |
| Consumer Discretionary | 14.6% |
| Consumer Staples | 3.4% |
| Energy | 7.7% |
| Financials | 14.1% |
| Healthcare | 4.5% |
| Industrials | 29.5% |
| Information Technology | 9.5% |
| Materials | 12.3% |
| Real Estate | 1.0% |

---

Oberweis Focused International Growth Fund

Schedule of Investments (unaudited) <sup>a</sup>

March 31, 2026

---

| | | | |
|:---|:---|:---|:---|
| | | **Shares** | **Value** |
| **Equities** | ***91.9*** *%*** |  |  |
| ***Australia*** | ***2.1*** *%*** |  |  |
| Westpac Banking Corp.\* |  | 31300 | $864971 |
| ***Finland*** | ***2.6*** *%*** |  |  |
| Metso Oyj\* |  | 61600 | 1067506 |
| ***France*** | ***2.8*** *%*** |  |  |
| Societe Generale SA\* |  | 15700 | 1146318 |
| ***Germany*** | ***17.6*** *%*** |  |  |
| Deutsche Telekom AG\* |  | 22100 | 824811 |
| DWS Group GmbH & Co. KGaA\* |  | 8500 | 547576 |
| E.ON SE\* |  | 40100 | 878214 |
| Münchener Rückversicherungs AG\* |  | 1400 | 884121 |
| Nordex SE\* |  | 19000 | 1029615 |
| Rheinmetall AG\* |  | 300 | 506015 |
| SAP SE\* |  | 2600 | 443237 |
| Siemens AG |  | 2400 | 584698 |
| Siemens Energy AG |  | 9000 | 1551982 |
|  |  |  | 7250269 |
| ***Italy*** | ***3.1*** *%*** |  |  |
| UniCredit SpA\* |  | 17700 | 1269812 |
| ***Japan*** | ***27.2*** *%*** |  |  |
| Advantest Corp |  | 6100 | 841841 |
| Food & Life Cos. Ltd.\* |  | 18600 | 1109635 |
| Hitachi Ltd. |  | 20500 | 601378 |
| Kajima Corp. |  | 16100 | 614194 |
| Kioxia Hldgs. Corp.\* |  | 7000 | 914201 |
| Mitsubishi Electric Corp |  | 38100 | 1246140 |
| Mitsubishi UFJ Financial Group, Inc. |  | 75100 | 1271738 |
| Shimizu Corp |  | 33900 | 608204 |
| Sony Group Corp. |  | 38200 | 796193 |
| Sumitomo Electric Industries Ltd. |  | 29700 | 1687557 |
| Sumitomo Corp. |  | 19200 | 718446 |
| Toyota Motor Corp. |  | 36200 | 752502 |
|  |  |  | 11162029 |
| ***Netherlands*** | ***3.6*** *%*** |  |  |
| ASML Hldg. NV |  | 1100 | 1462672 |
| ***Spain*** | ***2.1*** *%*** |  |  |
| Iberdrola SA |  | 37100 | 849338 |
| ***Switzerland*** | ***11.3*** *%*** |  |  |
| ABB Ltd. |  | 12900 | 1048874 |
| Cie Financiere Richemont SA\* |  | 4700 | 829861 |
| Roche Hldg. AG |  | 3600 | 1436727 |
| Zurich Insurance Group AG\* |  | 1900 | 1342954 |
|  |  |  | 4658416 |
| ***United Kingdom*** | ***19.5*** *%*** |  |  |
| AstraZeneca PLC |  | 8300 | 1623015 |
| Games Workshop Group PLC |  | 2600 | 614644 |
| GSK PLC |  | 23300 | 641822 |
| HSBC Hldgs. PLC |  | 87100 | 1430434 |
| Rio Tinto PLC |  | 7800 | 723650 |
| Rolls-Royce Hldgs. PLC\* |  | 83900 | 1274669 |
| Shell PLC |  | 36900 | 1709059 |
|  |  |  | 8017293 |
| ***Total Equities*** |  |  |  |
| (Cost: $36,006,513) |  |  | $37748624 |
| ***Short-Term Investments*** | ***7.2*** *%*** |  |  |
| Fidelity Investments Money Market Government Portfolio Class I 3.53%<sup>b</sup> |  | 2959544 | 2959544 |
| ***Total Short-Term Investments*** |  |  |  |
| (Cost: $2,959,544) |  |  | $2959544 |
| ***Total Investments*** | ***99.1*** *%*** |  |  |
| (Cost: $38,966,057) |  |  | $40708168 |
| Other Assets in Excess of Liabilities | ***0.9*** *%*** |  | 374466 |
| ***Net Assets - 100%*** |  |  | $**41082634** |

---

<sup>a</sup> Certain securities were fair valued under the discretion of the Board of Trustees

<sup>b</sup> Annualized seven-day effective yield as of March 31, 2026

\* Non-income producing security during the period ended March 31, 2026

---

| | |
|:---|:---|
| **SECTOR ALLOCATIONS (As a Percentage of Net Assets)** | |
| Communication Services | 2.0% |
| Consumer Discretionary | 14.1% |
| Energy | 4.2% |
| Financials | 21.3% |
| Healthcare | 9.0% |
| Industrials | 26.4% |
| Information Technology | 8.9% |
| Materials | 1.8% |
| Utilities | 4.2% |

---

Fair Value Measurements

In accordance with Financial Accounting Standards Board ("FASB") guidance, the Funds utilize the "Fair Value Measurements and Disclosures" to define fair value, set out a framework for measuring fair value, and expand disclosures regarding fair value measurements.

Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three levels listed below:

● Level 1 – Quoted prices in active markets for identical securities.

● Level 2 – Other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc).

● Level 3 – Significant unobservable inputs (including the Fund's own assumptions in determining the fair value of investments).

The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. The

following is a summary of the inputs used to value the Funds' net assets as of March 31, 2026:

---

| | | |
|:---|:---|:---|
|  | Micro-Cap<br> Fund | Small-Cap<br> Opportunities<br> Fund |
| Level 1 – Equities | $1027057460 | $1978614401 |
| Level 2 - Equities | - | - |
| Level 3 | - | - |
| Total Investments | $1027057460 | $1978614401 |

---

---

| | | |
|:---|:---|:---|
|  | Global<br> Opportunities<br> Fund | China<br> Opportunities<br> Fund |
| Level 1 - Equities |  |  |
| Total Asia | $1518943 | $4897859 |
| Total Europe | 3131147 |  |
| Total North America | 34452835 |  |
| Total Short-Term Investments | - | 1257236 |
| Total Level 1 | 39102925 | 6155095 |
| Level 2 - Equities |  |  |
| Total Asia | 6628480 | 46666975 |
| Total Europe | 10955768 | - |
| Total Level 2 | 17584248 | 46666975 |
| Level 3 | - | - |
| Total Investments | $56687173 | $52822070 |

---

---

| | | |
|:---|:---|:---|
|  | International<br> Opportunities<br> Fund | Focused<br> International<br> Growth Fund |
| Level 1 – Equites |  |  |
| Total Europe | $18033170 | $- |
| Total North America | 64529412 |  |
| Total Short-Term Investments | 7481217 | 2959544 |
| Total Level 1 | 90043799 | 2959544 |
| Level 2 – Equities |  |  |
| Total Asia | 120574034 | 11162029 |
| Total Australia | 25865964 | 864971 |
| Total Europe | 134738106 | 25721624 |
| Total Level 2 | 281178104 | 37748624 |
| Level 3 | - | - |
| Total Investments | $371221903 | $40708168 |

---

The Funds' assets include certain foreign securities for which a third party statistical pricing service may be employed for purposes of fair market valuation. The pricing service provides fair market valuation on days when the movement in relevant indices exceeds a predetermined threshold.

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** OBERWEIS FUNDS

- **b. Investment Company Act file number:** 811-04854

- **c. CIK number of Registrant:** 0000803020

- **d. LEI of Registrant:** 549300PK13EJ83VPPR97

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 3333 Warrenville Road

  - **City:** Lisle

  - **State:** IL

  - **Foreign country:** US

  - **Zip / Postal Code:** 60532

  - **Telephone number:** 800-245-7311

**Item A.2. Information about the Series.**

- **a. Name of Series:** Oberweis Global Opportunities Fund

- **b. EDGAR series identifier (if any):** S000010230

- **c. LEI of Series:** 5493000DHX8PFDGOU475

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2026-12-31

- **b. Date as of which information is reported:** 2026-03-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $57919300.04

**Total Liabilities:** $76775.47

**Net Assets:** $57842524.57

**Cash Not Reported:** $1516897.35

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000028299 | 1.02%                | 8.12%                | -7.19%               |
| Class ID C000186089 | 1.02%                | 8.13%                | -7.15%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $30128.89                | $-3014883.58                               |
| Month 2  | $3659284.03              | $1051637.85                                |
| Month 3  | $-485888.71              | $-3954670.00                               |

**Designated Index Information**

- **Index Name:** N/A

- **Index Identifier:** N/A

### Schedule of Portfolio Investments

| Name                           | Title                                   | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Lumentum Holdings Inc          | Lumentum Holdings Inc                   | CUSIP: 55024U109<br>LEI: 549300JLWRRC38DWEF52 | Long             | EC               | CORP              | US        |      3800 | NS      | $2670488.00   | 4.62%             |  |  |  | No            |                  1 | On Loan: No      |
| LeMaitre Vascular Inc          | LeMaitre Vascular Inc                   | CUSIP: 525558201<br>LEI: 549300FZUBUB7MHY8R17 | Long             | EC               | CORP              | US        |      9500 | NS      | $1037115.00   | 1.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Merit Medical Systems Inc      | Merit Medical Systems Inc               | CUSIP: 589889104<br>LEI: 549300OYTY138SP2CE83 | Long             | EC               | CORP              | US        |      8700 | NS      | $599691.00    | 1.04%             |  |  |  | No            |                  1 | On Loan: No      |
| MACOM Technology Solutions Hol | MACOM Technology Solutions Holdings Inc | CUSIP: 55405Y100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      6300 | NS      | $1399041.00   | 2.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Pegasystems Inc                | Pegasystems Inc                         | CUSIP: 705573103<br>LEI: 549300FMCOKPL06FYN26 | Long             | EC               | CORP              | US        |     11000 | NS      | $468160.00    | 0.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Impinj Inc                     | Impinj Inc                              | CUSIP: 453204109<br>LEI: 549300M26VGKSMMWWN17 | Long             | EC               | CORP              | US        |      6700 | NS      | $688090.00    | 1.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Q2 Holdings Inc                | Q2 Holdings Inc                         | CUSIP: 74736L109<br>LEI: 549300M9RKR9DZXWS696 | Long             | EC               | CORP              | US        |     11300 | NS      | $534490.00    | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Rambus Inc                     | Rambus Inc                              | CUSIP: 750917106<br>LEI: 2549000211GDCQSLV833 | Long             | EC               | CORP              | US        |     15600 | NS      | $1342068.00   | 2.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Rush Street Interactive Inc    | Rush Street Interactive Inc             | CUSIP: 782011100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     49800 | NS      | $1083150.00   | 1.87%             |  |  |  | No            |                  1 | On Loan: No      |
| SkyWest Inc                    | SkyWest Inc                             | CUSIP: 830879102<br>LEI: 529900UYS2KGS6Z42P09 | Long             | EC               | CORP              | US        |      8700 | NS      | $798921.00    | 1.38%             |  |  |  | No            |                  1 | On Loan: No      |
| SharkNinja Inc                 | SharkNinja Inc                          | CUSIP: G8068L108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     17100 | NS      | $1810890.00   | 3.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Storebrand ASA                 | Storebrand ASA                          | CUSIP: 999999999<br>LEI: 5967007LIEEXZX7NA051 | Long             | EC               | CORP              | NO        |     77800 | NS      | $1404272.77   | 2.43%             |  |  |  | No            |                  2 | On Loan: No      |
| Veracyte Inc                   | Veracyte Inc                            | CUSIP: 92337F107<br>LEI: 529900ESWZRHXOW27Z37 | Long             | EC               | CORP              | US        |     34200 | NS      | $1101582.00   | 1.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Waystar Holding Corp           | Waystar Holding Corp                    | CUSIP: 946784105<br>LEI: 529900QJLKXDYU36MH89 | Long             | EC               | CORP              | US        |     27600 | NS      | $665436.00    | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| GeneDx Holdings Corp           | GeneDx Holdings Corp                    | CUSIP: 81663L200<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      5500 | NS      | $353210.00    | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Zeta Global Holdings Corp      | Zeta Global Holdings Corp               | CUSIP: 98956A105<br>LEI: 2549008P9XSJQHGQ9S27 | Long             | EC               | CORP              | US        |     72000 | NS      | $1146240.00   | 1.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Taisei Corp                    | Taisei Corp                             | CUSIP: 999999999<br>LEI: 529900TF7XJKIOWMLQ79 | Long             | EC               | CORP              | JP        |      8700 | NS      | $901335.18    | 1.56%             |  |  |  | No            |                  2 | On Loan: No      |
| Food & Life Cos Ltd            | Food & Life Cos Ltd                     | CUSIP: 999999999<br>LEI: 529900CWF7GCVZKS5M87 | Long             | EC               | CORP              | JP        |     21200 | NS      | $1264745.15   | 2.19%             |  |  |  | No            |                  2 | On Loan: No      |
| Sumitomo Pharma Co Ltd         | Sumitomo Pharma Co Ltd                  | CUSIP: 999999999<br>LEI: 529900D60UKVYLJ2OJ79 | Long             | EC               | CORP              | JP        |    115800 | NS      | $1579792.99   | 2.73%             |  |  |  | No            |                  2 | On Loan: No      |
| Mitsui E&S Co Ltd              | Mitsui E&S Co Ltd                       | CUSIP: 999999999<br>LEI: 5493007T2YKKWF2NYN82 | Long             | EC               | CORP              | JP        |     35600 | NS      | $1303476.11   | 2.25%             |  |  |  | No            |                  2 | On Loan: No      |
| Ryohin Keikaku Co Ltd          | Ryohin Keikaku Co Ltd                   | CUSIP: 999999999<br>LEI: 549300PMNF56J66BY371 | Long             | EC               | CORP              | JP        |     74000 | NS      | $1579131.00   | 2.73%             |  |  |  | No            |                  2 | On Loan: No      |
| Applied Optoelectronics Inc    | Applied Optoelectronics Inc             | CUSIP: 03823U102<br>LEI: 529900I8U6Q5SYDNLT48 | Long             | EC               | CORP              | US        |     31500 | NS      | $2664585.00   | 4.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Accelleron Industries AG       | Accelleron Industries AG                | CUSIP: 999999999<br>LEI: 254900KS0MD2PAARXD14 | Long             | EC               | CORP              | CH        |     16400 | NS      | $1482333.57   | 2.56%             |  |  |  | No            |                  2 | On Loan: No      |
| Ambarella Inc                  | Ambarella Inc                           | CUSIP: G037AX101<br>LEI: 254900XN7F4DG0CEKC02 | Long             | EC               | CORP              | US        |     10200 | NS      | $525045.00    | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| American Superconductor Corp   | American Superconductor Corp            | CUSIP: 030111207<br>LEI: 549300S9YT8Z8LOK4452 | Long             | EC               | CORP              | US        |     27500 | NS      | $930875.00    | 1.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Ashmore Group PLC              | Ashmore Group PLC                       | CUSIP: 999999999<br>LEI: 549300U3L59WB4YI2X12 | Long             | EC               | CORP              | GB        |    286500 | NS      | $801669.09    | 1.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Ashtead Technology Holdings pl | Ashtead Technology Holdings plc         | CUSIP: 999999999<br>LEI: 213800LHEWVY66RPGR58 | Long             | EC               | CORP              | GB        |    247100 | NS      | $1373555.47   | 2.37%             |  |  |  | No            |                  2 | On Loan: No      |
| Alphatec Holdings Inc          | Alphatec Holdings Inc                   | CUSIP: 02081G201<br>LEI: 549300EZE8CQ8K65FS24 | Long             | EC               | CORP              | US        |     42600 | NS      | $463488.00    | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| AtkinsRealis Group Inc         | AtkinsRealis Group Inc                  | CUSIP: 04764T955<br>LEI: UL01OYG5OMLM5G6CFM03 | Long             | EC               | CORP              | CA        |     13600 | NS      | $874991.01    | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Aritzia Inc                    | Aritzia Inc                             | CUSIP: 04045U953<br>LEI: 549300U83HKFRL1EX527 | Long             | EC               | CORP              | CA        |      9100 | NS      | $742600.82    | 1.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Babcock International Group PL | Babcock International Group PLC         | CUSIP: 999999999<br>LEI: 213800TSKOLX4EU6L377 | Long             | EC               | CORP              | GB        |     38300 | NS      | $594605.60    | 1.03%             |  |  |  | No            |                  2 | On Loan: No      |
| BHG Group AB                   | BHG Group AB                            | CUSIP: 999999999<br>LEI: 549300ZLCWL2QTO3HR86 | Long             | EC               | CORP              | SE        |    233500 | NS      | $573224.04    | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| Box Inc                        | Box Inc                                 | CUSIP: 10316T104<br>LEI: 549300KQUCPD8687YS68 | Long             | EC               | CORP              | US        |     28400 | NS      | $671376.00    | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Clean Harbors Inc              | Clean Harbors Inc                       | CUSIP: 184496107<br>LEI: 5493000SJVZVZJKHJF48 | Long             | EC               | CORP              | US        |      4200 | NS      | $1204266.00   | 2.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Vita Coco Co Inc/The           | Vita Coco Co Inc/The                    | CUSIP: 92846Q107<br>LEI: 54930020WXOAWHR85Y25 | Long             | EC               | CORP              | US        |     19500 | NS      | $934245.00    | 1.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Catalyst Pharmaceuticals Inc   | Catalyst Pharmaceuticals Inc            | CUSIP: 14888U101<br>LEI: 5299004O0R5XXLA5H544 | Long             | EC               | CORP              | US        |     37300 | NS      | $923548.00    | 1.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Credo Technology Group Holding | Credo Technology Group Holding Ltd      | CUSIP: G25457105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     27600 | NS      | $2590812.00   | 4.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Carpenter Technology Corp      | Carpenter Technology Corp               | CUSIP: 144285103<br>LEI: DX6I6ZD3X5WNNCDJKP85 | Long             | EC               | CORP              | US        |      3600 | NS      | $1418940.00   | 2.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Cranswick PLC                  | Cranswick PLC                           | CUSIP: 999999999<br>LEI: 549300LDZLPU51XOSK43 | Long             | EC               | CORP              | GB        |     18700 | NS      | $1294520.19   | 2.24%             |  |  |  | No            |                  1 | On Loan: No      |
| De' Longhi SpA                 | De' Longhi SpA                          | CUSIP: 999999999<br>LEI: 8156000E09A52C4F8A38 | Long             | EC               | CORP              | IT        |     18000 | NS      | $632585.99    | 1.09%             |  |  |  | No            |                  2 | On Loan: No      |
| DigitalOcean Holdings Inc      | DigitalOcean Holdings Inc               | CUSIP: 25402D102<br>LEI: 549300EPISPY3RE3DL21 | Long             | EC               | CORP              | US        |     21800 | NS      | $1870004.00   | 3.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Diploma PLC                    | Diploma PLC                             | CUSIP: G27664112<br>LEI: 2138008OGI7VYG8FGR19 | Long             | EC               | CORP              | GB        |     20000 | NS      | $1596870.95   | 2.76%             |  |  |  | No            |                  2 | On Loan: No      |
| Volution Group PLC             | Volution Group PLC                      | CUSIP: 999999999<br>LEI: 213800EPT84EQCDHO768 | Long             | EC               | CORP              | GB        |     61200 | NS      | $461733.95    | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Flowserve Corp                 | Flowserve Corp                          | CUSIP: 34354P105<br>LEI: 6Y0GK87T6V7NJKZJVM41 | Long             | EC               | CORP              | US        |     17700 | NS      | $1301127.00   | 2.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Futu Holdings Ltd              | Futu Holdings Ltd                       | CUSIP: 36118L106<br>LEI: 213800X4W4ZRESFPTQ37 | Long             |  | CORP              | HK        |      4300 | NS      | $588068.00    | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Genpact Ltd                    | Genpact Ltd                             | CUSIP: G3922B107<br>LEI: 529900OSEC6Q0L4L5B35 | Long             | EC               | CORP              | US        |     18400 | NS      | $685400.00    | 1.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Games Workshop Group PLC       | Games Workshop Group PLC                | CUSIP: 999999999<br>LEI: 213800RP9QJQYGWHNT41 | Long             | EC               | CORP              | GB        |      7200 | NS      | $1702091.44   | 2.94%             |  |  |  | No            |                  2 | On Loan: No      |
| Halozyme Therapeutics Inc      | Halozyme Therapeutics Inc               | CUSIP: 40637H109<br>LEI: 529900242I3SV9AGM753 | Long             | EC               | CORP              | US        |      9200 | NS      | $594596.00    | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| HealthEquity Inc               | HealthEquity Inc                        | CUSIP: 42226A107<br>LEI: 529900LRJU1RAFQHM467 | Long             | EC               | CORP              | US        |      7700 | NS      | $643489.00    | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Hiscox Ltd                     | Hiscox Ltd                              | CUSIP: 999999999<br>LEI: 5493007JXOLJ0QCY2D70 | Long             | EC               | CORP              | BM        |     34500 | NS      | $696397.68    | 1.20%             |  |  |  | No            |                  2 | On Loan: No      |
| ICU Medical Inc                | ICU Medical Inc                         | CUSIP: 44930G107<br>LEI: 5493003NRW7LS2QZRH60 | Long             | EC               | CORP              | US        |      5000 | NS      | $645750.00    | 1.12%             |  |  |  | No            |                  1 | On Loan: No      |
| IMI PLC                        | IMI PLC                                 | CUSIP: 999999999<br>LEI: 2138002W9Q21PF751R30 | Long             | EC               | CORP              | GB        |     43300 | NS      | $1473053.96   | 2.55%             |  |  |  | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2026-05-29

**Name of Applicant:** The Oberweis Funds

**Signature:** Eric Hannemann

**Name of Signer:** Eric Hannemann

**Title:** Treasurer