Arkolith/Funds/OBERWEIS ASSET MANAGEMENT INC/

OBERWEIS ASSET MANAGEMENT INC/

CIK: 937886Q1 2026
Active Filer
Portfolio Value
$3.4B
Positions
201
New Buys
22
21 sold
Changes
129 ↑ / 19 ↓

Top HoldingsQ1 2026

201 total positions
#SecurityValueShares% PortChangeΔ Shares
1Applied Optoelectronics Inc.
COM
$198.8M2.35M5.9%
ADDED
+310.3K
2Lumentum Hldgs, Inc.
COM
$187.1M266.2K5.5%
REDUCED
-14,708
3
Credo Technology Group
COM
$95.9M1.02M2.8%
ADDED
+346.6K
4DigitalOcean Holdings, Inc.
COM
$79.6M927.5K2.3%
ADDED
+148.7K
5
SharkNinja, Inc.
COM
$63.5M600.0K1.9%
ADDED
+73.7K
6
Nova Ltd.
COM
$59.9M138.0K1.8%
ADDED
+24.7K
7Dana Inc.
COM
$54.2M1.61M1.6%
ADDED
+815.0K
8BrightSpring Health Services
COM
$49.4M1.16M1.5%
ADDED
+251.0K
9Macom Technology Solutions
COM
$47.9M215.9K1.4%
ADDED
+36.9K
10Rambus, Inc
COM
$45.3M526.3K1.3%
ADDED
+64.2K
11Clean Harbors, Inc.
COM
$41.4M144.4K1.2%
ADDED
+27.5K
12SiTime Corporation
COM
$41.2M119.3K1.2%
ADDED
+12.9K
13Ultra Clean Holdings
COM
$39.8M640.5K1.2%
ADDED
+12.0K
14Everus Construction Group
COM
$38.6M326.5K1.1%
ADDED
+66.7K
15Frontdoor, Inc.
COM
$38.0M718.0K1.1%
ADDED
+107.1K
16Carpenter Technology Corp.
COM
$37.2M94.4K1.1%
ADDED
+11.8K
17Skywest Inc
COM
$36.0M392.5K1.1%
ADDED
+10.3K
18Lattice Semiconductor Corporat
COM
$34.7M374.4K1.0%
ADDED
+59.8K
19Globus Medical, Inc.-A
COM
$33.8M392.2K1.0%
ADDED
+122.2K
20
Camtek, Ltd.
COM
$33.8M222.8K1.0%
ADDED
+3.9K
21Arcutis Biotherapeutics, Inc.
COM
$32.2M1.37M1.0%
ADDED
+557.5K
22Flowserve Corporation
COM
$32.0M434.7K0.9%
ADDED
+24.7K
23Silicon Motion Techn ADR
COM
$31.7M282.6K0.9%
ADDED
+46.3K
24Life Time Holdings, Inc.
COM
$31.3M1.16M0.9%
ADDED
+101.2K
25Rush Street Interactive, Inc.
COM
$31.2M1.43M0.9%
ADDED
+22.9K
Showing top 25 of 201 positions

Filing History

Q1 2026180 pos
$3.4B
Q4 2025179 pos
$2.7B

Data Source

Holdings data sourced from SEC EDGAR 13F-HR filings. Updated quarterly, approximately 45 days after quarter end. All data is public domain.

Last filed: May 15, 2026