Filed: 11/14/2023ACC: 0001213900-23-086509
📋 What this filing means
OBERWEIS ASSET MANAGEMENT INC/ filed this quarterly 13F‑HR report disclosing 195 equity positions with a total reported market value of $941.46M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
195
Positions
$941.46M
Total AUM (reported)
34.78M
Total Shares
Allocation by class
COM$941.46M100.0%
Portfolio Concentration
Top 3$126.53M13.4%
4–10$100.72M10.7%
11–25$129.00M13.7%
Rest$585.21M62.2%
Top 3 weight
13.4%
Top 10 weight
24.1%
Voting Authority Distribution
Total shares with voting rights: 34.78M
Sole
Full voting authority
32.91M
shares
% of voting shares94.6%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
1.86M
shares
% of voting shares5.4%
Investment Discretion (by position count)
Sole195
Shared0
Other0
Dominant voting typeSole · 94.6% of voting shares
Institutional Holdings195
Rows:
Constellium NV Cl A
SOLEShares2.93M
TypeSH
Market value$53.38M
5.67%
Sole
1.94M
Shared
0.00
None
991.33K
Aehr Test Systems
SOLEShares910.11K
TypeSH
Market value$41.59M
4.42%
Sole
909.81K
Shared
0.00
None
300.00
Axcelis Technologies
SOLEShares193.56K
TypeSH
Market value$31.56M
3.35%
Sole
166.44K
Shared
0.00
None
27.12K
Weatherford International PLC
SOLEShares196.92K
TypeSH
Market value$17.79M
1.89%
Sole
178.26K
Shared
0.00
None
18.66K
Alphatec Hldgs Inc.
SOLEShares1.24M
TypeSH
Market value$16.03M
1.70%
Sole
1.09M
Shared
0.00
None
142.50K
Perion Network, Ltd.
SOLEShares470.29K
TypeSH
Market value$14.40M
1.53%
Sole
438.02K
Shared
0.00
None
32.27K
Vertiv Holdings Co.
SOLEShares380.99K
TypeSH
Market value$14.17M
1.51%
Sole
366.22K
Shared
0.00
None
14.77K
Veracyte, Inc.
SOLEShares597.54K
TypeSH
Market value$13.34M
1.42%
Sole
561.97K
Shared
0.00
None
35.57K
Deckers Outdoor Corp.
SOLEShares25.70K
TypeSH
Market value$13.21M
1.40%
Sole
20.58K
Shared
0.00
None
5.12K
Lantheus Hldgs Inc.
SOLEShares169.34K
TypeSH
Market value$11.77M
1.25%
Sole
154.98K
Shared
0.00
None
14.36K
ICF International, Inc.
SOLEShares95.70K
TypeSH
Market value$11.56M
1.23%
Sole
95.70K
Shared
0.00
None
0.00
Camtek, Ltd.
SOLEShares166.38K
TypeSH
Market value$10.36M
1.10%
Sole
166.38K
Shared
0.00
None
0.00
Universal Display Corp.
SOLEShares62.02K
TypeSH
Market value$9.74M
1.03%
Sole
56.97K
Shared
0.00
None
5.04K
Extreme Networks, Inc.
SOLEShares381.47K
TypeSH
Market value$9.24M
0.98%
Sole
302.62K
Shared
0.00
None
78.85K
Axonics, Inc.
SOLEShares161.62K
TypeSH
Market value$9.07M
0.96%
Sole
143.65K
Shared
0.00
None
17.97K
Belden, Inc.
SOLEShares91.48K
TypeSH
Market value$8.83M
0.94%
Sole
73.94K
Shared
0.00
None
17.54K
Flowserve Corporation
SOLEShares210.84K
TypeSH
Market value$8.39M
0.89%
Sole
192.90K
Shared
0.00
None
17.94K
TransMedics Group, Inc.
SOLEShares151.10K
TypeSH
Market value$8.27M
0.88%
Sole
151.10K
Shared
0.00
None
0.00
Sterling Construction Co., Inc
SOLEShares110K
TypeSH
Market value$8.08M
0.86%
Sole
110K
Shared
0.00
None
0.00
Visteon Corp.
SOLEShares57.97K
TypeSH
Market value$8.00M
0.85%
Sole
57.97K
Shared
0.00
None
0.00
Aerovironment, Inc.
SOLEShares69.10K
TypeSH
Market value$7.71M
0.82%
Sole
69.10K
Shared
0.00
None
0.00
Clean Harbors, Inc.
SOLEShares45.41K
TypeSH
Market value$7.60M
0.81%
Sole
37.78K
Shared
0.00
None
7.63K
Encompass Health Corporation
SOLEShares111.60K
TypeSH
Market value$7.50M
0.80%
Sole
111.60K
Shared
0.00
None
0.00
ADMA Biologics, Inc.
SOLEShares2.08M
TypeSH
Market value$7.44M
0.79%
Sole
2.08M
Shared
0.00
None
0.00
Power Integrations
SOLEShares94.57K
TypeSH
Market value$7.22M
0.77%
Sole
84.99K
Shared
0.00
None
9.58K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
Constellium NV Cl ASOLE | com | 2.93M | SH | $53.38M 5.67% | 1.94M | 0.00 | 991.33K |
Aehr Test SystemsSOLE | com | 910.11K | SH | $41.59M 4.42% | 909.81K | 0.00 | 300.00 |
Axcelis TechnologiesSOLE | com | 193.56K | SH | $31.56M 3.35% | 166.44K | 0.00 | 27.12K |
Weatherford International PLCSOLE | com | 196.92K | SH | $17.79M 1.89% | 178.26K | 0.00 | 18.66K |
Alphatec Hldgs Inc.SOLE | com | 1.24M | SH | $16.03M 1.70% | 1.09M | 0.00 | 142.50K |
Perion Network, Ltd.SOLE | com | 470.29K | SH | $14.40M 1.53% | 438.02K | 0.00 | 32.27K |
Vertiv Holdings Co.SOLE | com | 380.99K | SH | $14.17M 1.51% | 366.22K | 0.00 | 14.77K |
Veracyte, Inc.SOLE | com | 597.54K | SH | $13.34M 1.42% | 561.97K | 0.00 | 35.57K |
Deckers Outdoor Corp.SOLE | com | 25.70K | SH | $13.21M 1.40% | 20.58K | 0.00 | 5.12K |
Lantheus Hldgs Inc.SOLE | com | 169.34K | SH | $11.77M 1.25% | 154.98K | 0.00 | 14.36K |
ICF International, Inc.SOLE | com | 95.70K | SH | $11.56M 1.23% | 95.70K | 0.00 | 0.00 |
Camtek, Ltd.SOLE | com | 166.38K | SH | $10.36M 1.10% | 166.38K | 0.00 | 0.00 |
Universal Display Corp.SOLE | com | 62.02K | SH | $9.74M 1.03% | 56.97K | 0.00 | 5.04K |
Extreme Networks, Inc.SOLE | com | 381.47K | SH | $9.24M 0.98% | 302.62K | 0.00 | 78.85K |
Axonics, Inc.SOLE | com | 161.62K | SH | $9.07M 0.96% | 143.65K | 0.00 | 17.97K |
Belden, Inc.SOLE | com | 91.48K | SH | $8.83M 0.94% | 73.94K | 0.00 | 17.54K |
Flowserve CorporationSOLE | com | 210.84K | SH | $8.39M 0.89% | 192.90K | 0.00 | 17.94K |
TransMedics Group, Inc.SOLE | com | 151.10K | SH | $8.27M 0.88% | 151.10K | 0.00 | 0.00 |
Sterling Construction Co., IncSOLE | com | 110K | SH | $8.08M 0.86% | 110K | 0.00 | 0.00 |
Visteon Corp.SOLE | com | 57.97K | SH | $8.00M 0.85% | 57.97K | 0.00 | 0.00 |
Aerovironment, Inc.SOLE | com | 69.10K | SH | $7.71M 0.82% | 69.10K | 0.00 | 0.00 |
Clean Harbors, Inc.SOLE | com | 45.41K | SH | $7.60M 0.81% | 37.78K | 0.00 | 7.63K |
Encompass Health CorporationSOLE | com | 111.60K | SH | $7.50M 0.80% | 111.60K | 0.00 | 0.00 |
ADMA Biologics, Inc.SOLE | com | 2.08M | SH | $7.44M 0.79% | 2.08M | 0.00 | 0.00 |
Power IntegrationsSOLE | com | 94.57K | SH | $7.22M 0.77% | 84.99K | 0.00 | 9.58K |
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