| NEUBERGER BERMAN GROUP LLC | 5,375,377 | $19.7m | 0.0% |
| BlackRock, Inc. | 5,221,206 | $19.1m | 0.0% |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 4,428,000 | $16.2m | 0.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3,748,021 | $13.7m | 0.0% |
| IES Holdings, Inc. | 3,378,514 | $12.4m | 4.0% |
| D. E. Shaw & Co., Inc. | 3,117,334 | $11.4m | 0.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2,987,161 | $10.9m | 0.0% |
| AQR CAPITAL MANAGEMENT LLC | 2,501,607 | $9.2m | 0.0% |
| ACADIAN ASSET MANAGEMENT LLC | 1,775,752 | $6.5m | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 1,699,557 | $6.2m | 0.0% |
| FEDERATED HERMES, INC. | 1,635,374 | $6.0m | 0.0% |
| Kovack Advisors, Inc. | 1,577,986 | $5.8m | 0.3% |
| STATE STREET CORP | 1,578,040 | $5.8m | 0.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1,468,256 | $5.4m | 0.0% |
| Newport Trust Company, LLC | 1,267,327 | $4.6m | 0.0% |
| MILLENNIUM MANAGEMENT LLC | 1,217,555 | $4.5m | 0.0% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 1,065,140 | $3.9m | 0.0% |
| Saba Capital Management, L.P. | 988,696 | $3.6m | 0.1% |
| RENAISSANCE TECHNOLOGIES LLC | 927,700 | $3.4m | 0.0% |
| JPMORGAN CHASE & CO | 769,559 | $2.9m | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | 772,776 | $2.8m | 0.0% |
| DEUTSCHE BANK AG\ | 677,745 | $2.5m | 0.0% |
| PALISADE CAPITAL MANAGEMENT, LP | 626,582 | $2.3m | 0.1% |
| NEW YORK STATE COMMON RETIREMENT FUND | 624,461 | $2.3m | 0.0% |
| JANE STREET GROUP, LLC | 588,798 | $2.2m | 0.0% |