| Company | Share, % |
|---|---|
| Evolution Petroleum Corporation | 4.98 |
 Innovative Solutions and Support, Inc.
|
4.38 |
| Manitex International, Inc. | 4.32 |
| Precision Optics Corporation, Inc. | 3.33 |
 LiqTech International, Inc.
|
2.52 |
 LSI Industries Inc.
|
2.5 |
 Americas Gold and Silver Corporation
|
0.78 |
 Kopin Corporation
|
0.62 |
| Sonic Foundry, Inc. | 0.47 |
| Retractable Technologies, Inc. | 0.37 |
