Filed: 2/14/2023ACC: 0001213900-23-011274
📋 What this filing means
OBERWEIS ASSET MANAGEMENT INC/ filed this quarterly 13F‑HR report disclosing 168 equity positions with a total reported market value of $470.44M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
168
Positions
$470.44M
Total AUM (reported)
19.09M
Total Shares
Allocation by class
COM$470.44M100.0%
Portfolio Concentration
Top 3$92.83M19.7%
4–10$69.61M14.8%
11–25$76.93M16.4%
Rest$231.07M49.1%
Top 3 weight
19.7%
Top 10 weight
34.5%
Voting Authority Distribution
Total shares with voting rights: 19.09M
Sole
Full voting authority
16.85M
shares
% of voting shares88.3%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
2.24M
shares
% of voting shares11.7%
Investment Discretion (by position count)
Sole168
Shared0
Other0
Dominant voting typeSole · 88.3% of voting shares
Institutional Holdings168
Rows:
Constellium NV Cl A
SOLEShares4.94M
TypeSH
Market value$58.43M
12.42%
Sole
3.35M
Shared
0.00
None
1.59M
Axcelis Technologies
SOLEShares279.55K
TypeSH
Market value$22.19M
4.72%
Sole
238.09K
Shared
0.00
None
41.46K
Aehr Test Systems
SOLEShares607.61K
TypeSH
Market value$12.21M
2.60%
Sole
607.61K
Shared
0.00
None
0.00
Impinj, Inc.
SOLEShares110.67K
TypeSH
Market value$12.08M
2.57%
Sole
95.99K
Shared
0.00
None
14.68K
Crocs, Inc.
SOLEShares104.05K
TypeSH
Market value$11.28M
2.40%
Sole
82.20K
Shared
0.00
None
21.85K
Deckers Outdoor Corp.
SOLEShares27.12K
TypeSH
Market value$10.83M
2.30%
Sole
20.70K
Shared
0.00
None
6.42K
Super Micro Computer Inc.
SOLEShares121.24K
TypeSH
Market value$9.95M
2.12%
Sole
91.80K
Shared
0.00
None
29.44K
Clearfield, Inc.
SOLEShares94.54K
TypeSH
Market value$8.90M
1.89%
Sole
86.78K
Shared
0.00
None
7.76K
Lantheus Hldgs Inc.
SOLEShares164.94K
TypeSH
Market value$8.41M
1.79%
Sole
150.02K
Shared
0.00
None
14.92K
Halozyme Therapeutics, Inc.
SOLEShares143.39K
TypeSH
Market value$8.16M
1.73%
Sole
118.55K
Shared
0.00
None
24.84K
Veritiv Corp.
SOLEShares62.14K
TypeSH
Market value$7.56M
1.61%
Sole
62.14K
Shared
0.00
None
0.00
Belden, Inc.
SOLEShares91.77K
TypeSH
Market value$6.60M
1.40%
Sole
72.03K
Shared
0.00
None
19.74K
Perion Network, Ltd.
SOLEShares247.40K
TypeSH
Market value$6.26M
1.33%
Sole
247.40K
Shared
0.00
None
0.00
Alphatec Hldgs Inc.
SOLEShares503.29K
TypeSH
Market value$6.22M
1.32%
Sole
496.46K
Shared
0.00
None
6.83K
Model N, Inc.
SOLEShares145.34K
TypeSH
Market value$5.89M
1.25%
Sole
121.41K
Shared
0.00
None
23.93K
Clean Harbors, Inc.
SOLEShares48.34K
TypeSH
Market value$5.52M
1.17%
Sole
41.13K
Shared
0.00
None
7.21K
TransMedics Group, Inc.
SOLEShares82.40K
TypeSH
Market value$5.09M
1.08%
Sole
82.40K
Shared
0.00
None
0.00
Ameresco, Inc.
SOLEShares86.21K
TypeSH
Market value$4.93M
1.05%
Sole
86.21K
Shared
0.00
None
0.00
Acadia Healthcare Co., Inc.
SOLEShares58.78K
TypeSH
Market value$4.84M
1.03%
Sole
40.08K
Shared
0.00
None
18.70K
ICF International, Inc.
SOLEShares43.40K
TypeSH
Market value$4.30M
0.91%
Sole
43.40K
Shared
0.00
None
0.00
Ciena Corporation
SOLEShares80.39K
TypeSH
Market value$4.10M
0.87%
Sole
62.30K
Shared
0.00
None
18.09K
Cadence Design System, Inc.
SOLEShares25.50K
TypeSH
Market value$4.10M
0.87%
Sole
25.50K
Shared
0.00
None
0.00
Evolent Health, Inc.
SOLEShares139.34K
TypeSH
Market value$3.91M
0.83%
Sole
118.69K
Shared
0.00
None
20.65K
Maxlinear, Inc. Class A
SOLEShares113.46K
TypeSH
Market value$3.85M
0.82%
Sole
84.72K
Shared
0.00
None
28.74K
Bel Fuse, Inc.
SOLEShares114.80K
TypeSH
Market value$3.78M
0.80%
Sole
114.80K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
Constellium NV Cl ASOLE | com | 4.94M | SH | $58.43M 12.42% | 3.35M | 0.00 | 1.59M |
Axcelis TechnologiesSOLE | com | 279.55K | SH | $22.19M 4.72% | 238.09K | 0.00 | 41.46K |
Aehr Test SystemsSOLE | com | 607.61K | SH | $12.21M 2.60% | 607.61K | 0.00 | 0.00 |
Impinj, Inc.SOLE | com | 110.67K | SH | $12.08M 2.57% | 95.99K | 0.00 | 14.68K |
Crocs, Inc.SOLE | com | 104.05K | SH | $11.28M 2.40% | 82.20K | 0.00 | 21.85K |
Deckers Outdoor Corp.SOLE | com | 27.12K | SH | $10.83M 2.30% | 20.70K | 0.00 | 6.42K |
Super Micro Computer Inc.SOLE | com | 121.24K | SH | $9.95M 2.12% | 91.80K | 0.00 | 29.44K |
Clearfield, Inc.SOLE | com | 94.54K | SH | $8.90M 1.89% | 86.78K | 0.00 | 7.76K |
Lantheus Hldgs Inc.SOLE | com | 164.94K | SH | $8.41M 1.79% | 150.02K | 0.00 | 14.92K |
Halozyme Therapeutics, Inc.SOLE | com | 143.39K | SH | $8.16M 1.73% | 118.55K | 0.00 | 24.84K |
Veritiv Corp.SOLE | com | 62.14K | SH | $7.56M 1.61% | 62.14K | 0.00 | 0.00 |
Belden, Inc.SOLE | com | 91.77K | SH | $6.60M 1.40% | 72.03K | 0.00 | 19.74K |
Perion Network, Ltd.SOLE | com | 247.40K | SH | $6.26M 1.33% | 247.40K | 0.00 | 0.00 |
Alphatec Hldgs Inc.SOLE | com | 503.29K | SH | $6.22M 1.32% | 496.46K | 0.00 | 6.83K |
Model N, Inc.SOLE | com | 145.34K | SH | $5.89M 1.25% | 121.41K | 0.00 | 23.93K |
Clean Harbors, Inc.SOLE | com | 48.34K | SH | $5.52M 1.17% | 41.13K | 0.00 | 7.21K |
TransMedics Group, Inc.SOLE | com | 82.40K | SH | $5.09M 1.08% | 82.40K | 0.00 | 0.00 |
Ameresco, Inc.SOLE | com | 86.21K | SH | $4.93M 1.05% | 86.21K | 0.00 | 0.00 |
Acadia Healthcare Co., Inc.SOLE | com | 58.78K | SH | $4.84M 1.03% | 40.08K | 0.00 | 18.70K |
ICF International, Inc.SOLE | com | 43.40K | SH | $4.30M 0.91% | 43.40K | 0.00 | 0.00 |
Ciena CorporationSOLE | com | 80.39K | SH | $4.10M 0.87% | 62.30K | 0.00 | 18.09K |
Cadence Design System, Inc.SOLE | com | 25.50K | SH | $4.10M 0.87% | 25.50K | 0.00 | 0.00 |
Evolent Health, Inc.SOLE | com | 139.34K | SH | $3.91M 0.83% | 118.69K | 0.00 | 20.65K |
Maxlinear, Inc. Class ASOLE | com | 113.46K | SH | $3.85M 0.82% | 84.72K | 0.00 | 28.74K |
Bel Fuse, Inc.SOLE | com | 114.80K | SH | $3.78M 0.80% | 114.80K | 0.00 | 0.00 |
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