OBERWEIS ASSET MANAGEMENT INC/
CIK: 0000937886Latest portfolio: $2.7B · Q4 2025
Holdings
179
Total Value
$2.7B
New Positions
20
Closed Positions
25
Top Holdings
View All 179 Holdings →| # | Stock | Shares | Value | % Portfolio | Change | Type |
|---|---|---|---|---|---|---|
| 1 | LITELumentum Hldgs, Inc. | 280,930 | $103.5M | 3.79% | -47,700 | |
| 2 | CRDOCredo Technology Group | 675,388 | $97.2M | 3.55% | +31K | |
| 3 | AAOIApplied Optoelectronics Inc. | 2,039,641 | $71.1M | 2.60% | +152K | |
| 4 | SNSharkNinja, Inc. | 526,310 | $58.9M | 2.15% | +44K | |
| 5 | AMBAAmbarella, Inc. | 617,860 | $43.8M | 1.60% | +7K | |
| 6 | RMBS*Rambus, Inc | 462,100 | $42.5M | 1.55% | -45,799 | |
| 7 | SKYWSkywest Inc | 382,220 | $38.4M | 1.40% | +51K | |
| 8 | EHCEncompass Health Corporation | 358,971 | $38.1M | 1.39% | +171 | |
| 9 | SITMSiTime Corporation | 106,396 | $37.6M | 1.37% | — | |
| 10 | DOCNDigital Ocean Holdings, Inc. | 778,830 | $37.5M | 1.37% | +7K | |
| 11 | NVMINova Ltd. | 113,285 | $37.2M | 1.36% | — | |
| 12 | FTDRFrontdoor, Inc. | 610,860 | $35.2M | 1.29% | — | |
| 13 | BTSGBrightSpring Health Services | 908,000 | $34.0M | 1.24% | — | |
| 14 | MTSIMacom Technology Solutions | 178,960 | $30.7M | 1.12% | +1K | |
| 15 | VCYTVeracyte, Inc. | 726,740 | $30.6M | 1.12% | +5K | |
| 16 | MRCYMercury Systems, Inc. | 414,040 | $30.2M | 1.11% | +16K | |
| 17 | FLSFlowserve Corporation | 409,941 | $28.4M | 1.04% | +656 | |
| 18 | LTHLife Time Holdings, Inc. | 1,059,300 | $28.2M | 1.03% | +193K | |
| 19 | WAYWaystar Holding Corp. | 840,600 | $27.5M | 1.01% | +4K | |
| 20 | RSIRush Street Interactive, Inc. | 1,411,710 | $27.4M | 1.00% | +220K | |
| 21 | CLHClean Harbors, Inc. | 116,870 | $27.4M | 1.00% | +100 | |
| 22 | CRSCarpenter Technology Corp. | 82,611 | $26.0M | 0.95% | — | |
| 23 | TPCTutor Perini Corp. | 387,200 | $25.9M | 0.95% | +9K | |
| 24 | OSISOsi Systems, Inc. | 101,400 | $25.9M | 0.95% | — | |
| 25 | WGSGenedx Holdings Corp. | 198,770 | $25.9M | 0.95% | +5K |
Quarterly Changes
New Positions
Increased Positions
Sector Breakdown
Technology0.0% ($1.0354797181711016e+217T)
Healthcare0.0% ($3.8101340043059527e+136T)
Industrials0.0% ($3.837830229284413e+114T)
Consumer Cyclical0.0% ($5.889435240281562e+86T)
Financial Services0.0% ($2.0926199901219313e+58T)
Unknown0.0% ($4.2462189241766214e+49T)
Energy0.0% ($1.6866157901077592e+25T)
Consumer Defensive0.0% ($123721121974.6T)
Communication Services0.0% ($210131.7T)
Basic Materials0.0% ($6.6B)
Filing History
| Quarter | Filing Date | Portfolio Value | Holdings |
|---|---|---|---|
| Q4 2025 | Feb 17, 2026 | $2.7B | 179 |
| Q3 2025 | Nov 17, 2025 | $2.6T | 183 |
| Q2 2025 | Aug 14, 2025 | $2.3T | 0 |
| Q1 2025 | May 15, 2025 | $2.0T | 192 |
| Q4 2024 | Feb 14, 2025 | $2.1T | 196 |
| Q3 2024 | Nov 14, 2024 | $1951.7T | 206 |
| Q2 2024 | Aug 14, 2024 | $1631.3T | 197 |
| Q1 2024 | May 15, 2024 | $1382.7T | 196 |
| Q4 2023 | Feb 14, 2024 | $1073.6T | 192 |
| Q3 2023 | Nov 14, 2023 | $941.5T | 195 |
| Q2 2023 | Aug 14, 2023 | $822.8T | 187 |
| Q1 2023 | May 15, 2023 | $644.5T | 174 |
| Q4 2022 | Feb 14, 2023 | $470.4T | 168 |
| Q3 2022 | Nov 14, 2022 | $427.3B | 173 |
| Q2 2022 | Aug 15, 2022 | $395.1B | 164 |
| Q1 2022 | May 16, 2022 | $499.2B | 165 |
| Q4 2021 | Feb 14, 2022 | $548.1B | 160 |
| Q3 2021 | Nov 15, 2021 | $482.9B | 162 |
| Q2 2021 | Aug 16, 2021 | $456.5B | 163 |
| Q1 2021 | May 17, 2021 | $488.9B | 170 |
| Q4 2020 | Feb 16, 2021 | $379.8B | 138 |
| Q3 2020 | Nov 16, 2020 | $297.0B | 126 |
| Q2 2020 | Aug 14, 2020 | $254.7B | 123 |
| Q1 2020 | May 15, 2020 | $181.2B | 172 |
| Q4 2019 | Feb 14, 2020 | $300.2B | 200 |
| Q3 2019 | Nov 14, 2019 | $442.5B | 196 |
| Q2 2019 | Aug 14, 2019 | $550.4B | 196 |
| Q1 2019 | May 15, 2019 | $498.0B | 201 |
| Q4 2018 | Feb 14, 2019 | $447.1B | 200 |
| Q3 2018 | Nov 14, 2018 | $516.0B | 209 |
| Q2 2018 | Aug 14, 2018 | $397.9B | 220 |
| Q1 2018 | May 15, 2018 | $381.0B | 227 |
| Q4 2017 | Feb 14, 2018 | $427.5B | 234 |
| Q3 2017 | Nov 13, 2017 | $359.3B | 169 |
| Q2 2017 | Aug 14, 2017 | $364.4B | 142 |
| Q1 2017 | May 15, 2017 | $339.3B | 139 |
| Q4 2016 | Feb 14, 2017 | $334.7B | 135 |
| Q3 2016 | Nov 14, 2016 | $347.4B | 135 |
| Q2 2016 | Aug 15, 2016 | $336.4B | 170 |
| Q1 2016 | May 16, 2016 | $346.2B | 175 |
Fund Information
OBERWEIS ASSET MANAGEMENT INC/ is an institutional investment manager that files 13F reports with the SEC. As of the Q4 2025 filing, the fund reported a portfolio valued at $2.7B across 179 holdings. The largest position is Lumentum Hldgs, Inc. (LITE), representing 3.8% of the portfolio. Compared to the previous quarter, the fund opened 21 new positions and closed 25 positions. 13F filings are required quarterly disclosures that provide transparency into the holdings of institutional investment managers with at least $100 million in qualifying assets.