StockDrifts LogoStockDrifts

Oberweis Asset Management Inc

Portfolio Manager
Oberweis Asset Management INC
Performance
+20.41% (2026 Q1)
AUM (13F)
$3.39B
# of Holdings
180
Performance Rank
Allocation (Top 20)
37.12%

Oberweis Asset Management Inc Holdings Map

Top 50 Oberweis Asset Management Inc Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
AAOI
Applied Optoelectronics Inc.
5.87%2.35M$198.8M
+15.21%(+310.33K)
2025-Q1: 1.38M shares2025-Q2: 1.89M shares2025-Q3: 1.89M shares2025-Q4: 2.04M shares2026-Q1: 2.35M shares
$26.68(+613.47%)
2026-03-31
LITE
Lumentum Hldgs, Inc.
5.53%266.2K$187.1M
-5.24%(-14.71K)
2025-Q1: 0 shares2025-Q2: 269.1K shares2025-Q3: 328.6K shares2025-Q4: 280.9K shares2026-Q1: 266.2K shares
$87.90(+1004.36%)
2026-03-31
CRDO
Credo Technology Group
2.83%1.02M$95.9M
+51.32%(+346.58K)
2025-Q1: 1.26M shares2025-Q2: 758.6K shares2025-Q3: 643.9K shares2025-Q4: 675.4K shares2026-Q1: 1.02M shares
$66.17(+160.21%)
2026-03-31
DOCN
DigitalOcean Holdings, Inc.
2.35%927.5K$79.6M
+19.09%(+148.68K)
2025-Q1: 586.5K shares2025-Q2: 631.9K shares2025-Q3: 772.0K shares2025-Q4: 778.8K shares2026-Q1: 927.5K shares
$40.40(+283.37%)
2026-03-31
SN
SharkNinja, Inc.
1.88%600.0K$63.5M
+14.00%(+73.66K)
2025-Q1: 500.2K shares2025-Q2: 484.6K shares2025-Q3: 482.8K shares2025-Q4: 526.3K shares2026-Q1: 600.0K shares
$76.53(+38.02%)
2026-03-31
NVMI
Nova Ltd.
1.77%138.0K$59.9M
+21.78%(+24.67K)
2025-Q1: 111.0K shares2025-Q2: 113.1K shares2025-Q3: 113.3K shares2025-Q4: 113.3K shares2026-Q1: 138.0K shares
$243.65(+108.96%)
2026-03-31
DAN
Dana Inc.
1.6%1.61M$54.2M
+102.32%(+815.00K)
2025-Q1: 0 shares2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 796.5K shares2026-Q1: 1.61M shares
$25.34(+30.62%)
2026-03-31
BTSG
BrightSpring Health Services
1.46%1.16M$49.4M
+27.64%(+250.97K)
2025-Q1: 0 shares2025-Q2: 775.8K shares2025-Q3: 908.0K shares2025-Q4: 908.0K shares2026-Q1: 1.16M shares
$25.63(+125.91%)
2026-03-31
MTSI
Macom Technology Solutions
1.42%215.9K$47.9M
+20.63%(+36.93K)
2025-Q1: 232.5K shares2025-Q2: 179.5K shares2025-Q3: 177.8K shares2025-Q4: 179.0K shares2026-Q1: 215.9K shares
$117.34(+220.10%)
2026-03-31
RMBS
Rambus, Inc
1.34%526.3K$45.3M
+13.90%(+64.22K)
2025-Q1: 507.4K shares2025-Q2: 505.8K shares2025-Q3: 507.9K shares2025-Q4: 462.1K shares2026-Q1: 526.3K shares
$53.53(+137.32%)
2026-03-31

Unlock alerts, watchlists & AI chat

Sign up free to track Oberweis Asset Management Inc, compare funds side by side, and get alerts the moment positions change.

More 13F analyses

View all