Institutional Fund
Oberweis Asset Management Inc/
Lisle, ILCIK 9378865 filings on record
Portfolio Value
$3.39B
Q1 2026
Holdings
180
Reported positions
New Buys
22
Opened this quarter
QoQ Change
+23.8%
from $2.73B
Portfolio Value Trend
Reported 13F value by quarter
Portfolio value trend — upgrade to see history
UpgradeTop Allocations
Largest positions by weight
- Applied Optoelectronics Inc5.9%
- Lumentum Hldgs Inc5.5%
- Credo Technology Group Holdi2.8%
- Digitalocean Hldgs Inc2.3%
- Sharkninja Inc1.9%
- Nova Ltd1.8%
- Other79.8%
Portfolio Holdings
180 positions · Q1 2026
| # | Security | Shares | Value | % Port. | Δ Shares | Activity |
|---|---|---|---|---|---|---|
| 1 | Applied Optoelectronics Inc | 2.35M | $198.78M | 5.9% | +310.3K | Added |
| 2 | Lumentum Hldgs Inc | 266.2K | $187.09M | 5.5% | −14.7K | Reduced |
| 3 | Credo Technology Group Holdi | 1.02M | $95.93M | 2.8% | +346.6K | Added |
| 4 | Digitalocean Hldgs Inc | 927.5K | $79.56M | 2.3% | +148.7K | Added |
| 5 | Sharkninja Inc | 600.0K | $63.54M | 1.9% | +73.7K | Added |
| 6 | Nova Ltd | 138.0K | $59.91M | 1.8% | +24.7K | Added |
| 7 | Dana Inc | 1.61M | $54.23M | 1.6% | +815.0K | Added |
| 8 | Brightspring Health Svcs Inc | 1.16M | $49.38M | 1.5% | +251.0K | Added |
| 9 | Macom Tech Solutions Hldgs I | 215.9K | $47.94M | 1.4% | +36.9K | Added |
| 10 | Rambus Inc Del | 526.3K | $45.28M | 1.3% | +64.2K | Added |
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