13F Insight
DOSSIER · 13F-HR · Q2 2026

OBERWEIS ASSET MANAGEMENT INC/

$4.8B in tracked AUM across 176 positions as of Q2 2026.

OA
CIK 0000937886 · last filed Jun 30, 2026
Total AUM
$4.8B
as of Q2 2026
Holdings
176
—
positions
Whale Score
58
58
tracked
Activity
—
no data
changes this Q
AI Analysis · Q2 2026

OBERWEIS ASSET MANAGEMENT INC/ filed its latest 13F-HR for Q2 2026. See the latest holdings and position changes below.

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
G25457105
Credo Technology Group
$276M1.0M5.7%02
AAOI
Applied Optoelectronics Inc.
$265M1.8M5.5%03
DOCN
DigitalOcean Holdings, Inc.
$146M930K3.0%04
SIMO
Silicon Motion Techn ADR
$105M316K2.2%05
UCTT
Ultra Clean Holdings
$92M647K1.9%06
G8068L108
SharkNinja, Inc.
$90M594K1.9%07
SITM
SiTime Corporation
$89M120K1.8%08
BTSG
BrightSpring Health Services
$83M1.2M1.7%09
HNGE
Hinge Health, Inc.
$71M855K1.5%10
RMBS
Rambus, Inc
$70M527K1.4%

Filing history

2026Q2Jun 30
$4.8B▲ 42.9%
176 positionsView →2026Q1Mar 31
$3.4B▲ 23.8%
180 positionsView →2025Q4Dec 31
$2.7B▲ 77.4%
179 positionsView →2025Q3Sep 30
$1.5B▲ 16.7%
101 positionsView →2025Q2Jun 30
$1.3B▼ 34.2%
102 positionsLocked2025Q1Mar 31
$2.0B▼ 5.4%
192 positionsLocked2024Q4Dec 31
$2.1B▲ 8.7%
196 positionsLocked2024Q3Sep 30
$2.0B▲ 19.6%
206 positionsLocked2024Q2Jun 30
$1.6B▲ 18.0%
197 positionsLocked2024Q1Mar 31
$1.4B▲ 28.8%
196 positionsLocked2023Q4Dec 31
$1.1B▲ 14.0%
192 positionsLocked2023Q3Sep 30
$941M▲ 14.4%
195 positionsLocked
Showing 12 of 100