Filed: 5/15/2024ACC: 0001213900-24-043291
📋 What this filing means
OBERWEIS ASSET MANAGEMENT INC/ filed this quarterly 13F‑HR report disclosing 196 equity positions with a total reported market value of $1.38B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
196
Positions
$1.38B
Total AUM (reported)
41.73M
Total Shares
Allocation by class
COM$1.38B100.0%
Portfolio Concentration
Top 3$88.85M6.4%
4–10$128.98M9.3%
11–25$222.34M16.1%
Rest$942.51M68.2%
Top 3 weight
6.4%
Top 10 weight
15.8%
Voting Authority Distribution
Total shares with voting rights: 41.73M
Sole
Full voting authority
40.39M
shares
% of voting shares96.8%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
1.34M
shares
% of voting shares3.2%
Investment Discretion (by position count)
Sole196
Shared0
Other0
Dominant voting typeSole · 96.8% of voting shares
Institutional Holdings196
Rows:
Constellium NV Cl A
SOLEShares1.80M
TypeSH
Market value$39.87M
2.88%
Sole
1.14M
Shared
0.00
None
667.63K
Weatherford International PLC
SOLEShares222.10K
TypeSH
Market value$25.63M
1.85%
Sole
210.96K
Shared
0.00
None
11.14K
Axcelis Technologies
SOLEShares209.34K
TypeSH
Market value$23.35M
1.69%
Sole
195.92K
Shared
0.00
None
13.42K
Onto Innovation, Inc.
SOLEShares106.93K
TypeSH
Market value$19.36M
1.40%
Sole
102.39K
Shared
0.00
None
4.54K
Alphatec Hldgs Inc.
SOLEShares1.39M
TypeSH
Market value$19.11M
1.38%
Sole
1.30M
Shared
0.00
None
85.16K
Vertiv Holdings Co.
SOLEShares229.65K
TypeSH
Market value$18.76M
1.36%
Sole
213.98K
Shared
0.00
None
15.67K
ADMA Biologics, Inc.
SOLEShares2.79M
TypeSH
Market value$18.42M
1.33%
Sole
2.79M
Shared
0.00
None
0.00
Amphastar Pharmaceuticals, Inc
SOLEShares417.87K
TypeSH
Market value$18.35M
1.33%
Sole
399.32K
Shared
0.00
None
18.55K
Skywest Inc
SOLEShares262.36K
TypeSH
Market value$18.12M
1.31%
Sole
262.20K
Shared
0.00
None
160.00
Encompass Health Corporation
SOLEShares204.14K
TypeSH
Market value$16.86M
1.22%
Sole
193.80K
Shared
0.00
None
10.34K
Silicon Motion Techn ADR
SOLEShares217.40K
TypeSH
Market value$16.73M
1.21%
Sole
217.40K
Shared
0.00
None
0.00
Oshkosh Corp.
SOLEShares133.83K
TypeSH
Market value$16.69M
1.21%
Sole
123.97K
Shared
0.00
None
9.85K
Clean Harbors, Inc.
SOLEShares81.30K
TypeSH
Market value$16.37M
1.18%
Sole
73.02K
Shared
0.00
None
8.28K
Aerovironment, Inc.
SOLEShares101.57K
TypeSH
Market value$15.57M
1.13%
Sole
101.50K
Shared
0.00
None
70.00
Camtek, Ltd.
SOLEShares178.18K
TypeSH
Market value$14.93M
1.08%
Sole
178.18K
Shared
0.00
None
0.00
Veracyte, Inc.
SOLEShares671.70K
TypeSH
Market value$14.88M
1.08%
Sole
638.16K
Shared
0.00
None
33.54K
Ultra Clean Holdings
SOLEShares319.60K
TypeSH
Market value$14.68M
1.06%
Sole
319.60K
Shared
0.00
None
0.00
TransMedics Group, Inc.
SOLEShares198.20K
TypeSH
Market value$14.65M
1.06%
Sole
198.20K
Shared
0.00
None
0.00
SharkNinja, Inc.
SOLEShares235.20K
TypeSH
Market value$14.65M
1.06%
Sole
235.20K
Shared
0.00
None
0.00
ICF International, Inc.
SOLEShares96.90K
TypeSH
Market value$14.60M
1.06%
Sole
96.90K
Shared
0.00
None
0.00
ESAB Corporation
SOLEShares129.20K
TypeSH
Market value$14.29M
1.03%
Sole
129.20K
Shared
0.00
None
0.00
Parsons Corp.
SOLEShares172.14K
TypeSH
Market value$14.28M
1.03%
Sole
172.14K
Shared
0.00
None
0.00
Crocs, Inc.
SOLEShares95.40K
TypeSH
Market value$13.72M
0.99%
Sole
85.61K
Shared
0.00
None
9.79K
Nextracker, Inc.
SOLEShares235.70K
TypeSH
Market value$13.26M
0.96%
Sole
235.70K
Shared
0.00
None
0.00
Universal Display Corp.
SOLEShares77.44K
TypeSH
Market value$13.05M
0.94%
Sole
71.42K
Shared
0.00
None
6.02K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
Constellium NV Cl ASOLE | com | 1.80M | SH | $39.87M 2.88% | 1.14M | 0.00 | 667.63K |
Weatherford International PLCSOLE | com | 222.10K | SH | $25.63M 1.85% | 210.96K | 0.00 | 11.14K |
Axcelis TechnologiesSOLE | com | 209.34K | SH | $23.35M 1.69% | 195.92K | 0.00 | 13.42K |
Onto Innovation, Inc.SOLE | com | 106.93K | SH | $19.36M 1.40% | 102.39K | 0.00 | 4.54K |
Alphatec Hldgs Inc.SOLE | com | 1.39M | SH | $19.11M 1.38% | 1.30M | 0.00 | 85.16K |
Vertiv Holdings Co.SOLE | com | 229.65K | SH | $18.76M 1.36% | 213.98K | 0.00 | 15.67K |
ADMA Biologics, Inc.SOLE | com | 2.79M | SH | $18.42M 1.33% | 2.79M | 0.00 | 0.00 |
Amphastar Pharmaceuticals, IncSOLE | com | 417.87K | SH | $18.35M 1.33% | 399.32K | 0.00 | 18.55K |
Skywest IncSOLE | com | 262.36K | SH | $18.12M 1.31% | 262.20K | 0.00 | 160.00 |
Encompass Health CorporationSOLE | com | 204.14K | SH | $16.86M 1.22% | 193.80K | 0.00 | 10.34K |
Silicon Motion Techn ADRSOLE | com | 217.40K | SH | $16.73M 1.21% | 217.40K | 0.00 | 0.00 |
Oshkosh Corp.SOLE | com | 133.83K | SH | $16.69M 1.21% | 123.97K | 0.00 | 9.85K |
Clean Harbors, Inc.SOLE | com | 81.30K | SH | $16.37M 1.18% | 73.02K | 0.00 | 8.28K |
Aerovironment, Inc.SOLE | com | 101.57K | SH | $15.57M 1.13% | 101.50K | 0.00 | 70.00 |
Camtek, Ltd.SOLE | com | 178.18K | SH | $14.93M 1.08% | 178.18K | 0.00 | 0.00 |
Veracyte, Inc.SOLE | com | 671.70K | SH | $14.88M 1.08% | 638.16K | 0.00 | 33.54K |
Ultra Clean HoldingsSOLE | com | 319.60K | SH | $14.68M 1.06% | 319.60K | 0.00 | 0.00 |
TransMedics Group, Inc.SOLE | com | 198.20K | SH | $14.65M 1.06% | 198.20K | 0.00 | 0.00 |
SharkNinja, Inc.SOLE | com | 235.20K | SH | $14.65M 1.06% | 235.20K | 0.00 | 0.00 |
ICF International, Inc.SOLE | com | 96.90K | SH | $14.60M 1.06% | 96.90K | 0.00 | 0.00 |
ESAB CorporationSOLE | com | 129.20K | SH | $14.29M 1.03% | 129.20K | 0.00 | 0.00 |
Parsons Corp.SOLE | com | 172.14K | SH | $14.28M 1.03% | 172.14K | 0.00 | 0.00 |
Crocs, Inc.SOLE | com | 95.40K | SH | $13.72M 0.99% | 85.61K | 0.00 | 9.79K |
Nextracker, Inc.SOLE | com | 235.70K | SH | $13.26M 0.96% | 235.70K | 0.00 | 0.00 |
Universal Display Corp.SOLE | com | 77.44K | SH | $13.05M 0.94% | 71.42K | 0.00 | 6.02K |
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