| Nantahala Capital Management, LLC | 6,540,496 | $29.4m | 0.5% |
| ROYCE & ASSOCIATES LP | 3,274,064 | $14.7m | 0.1% |
| Archon Capital Management LLC | 2,644,717 | $11.9m | 4.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1,534,847 | $6.9m | 0.0% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 1,136,630 | $5.1m | 0.7% |
| AIGH Capital Management LLC | 1,128,343 | $5.1m | 0.3% |
| Silverberg Bernstein Capital Management LLC | 1,039,641 | $4.7m | 1.8% |
| COMMONWEALTH EQUITY SERVICES, LLC | 649,061 | $2.9m | 0.0% |
| HORIZON KINETICS ASSET MANAGEMENT LLC | 585,000 | $2.6m | 0.0% |
| BlackRock, Inc. | 560,986 | $2.5m | 0.0% |
| RENAISSANCE TECHNOLOGIES LLC | 554,278 | $2.5m | 0.0% |
| Taylor Frigon Capital Management LLC | 413,602 | $1.9m | 0.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 400,600 | $1.8m | 0.0% |
| Legato Capital Management LLC | 382,762 | $1.7m | 0.1% |
| SEI INVESTMENTS CO | 281,029 | $1.3m | 0.0% |
| Huntleigh Advisors, Inc. | 263,231 | $1.2m | 0.2% |
| MILLENNIUM MANAGEMENT LLC | 242,663 | $1.1m | 0.0% |
| MARSHALL WACE, LLP | 236,466 | $1.1m | 0.0% |
| VANGUARD FIDUCIARY TRUST CO | 224,021 | $1.0m | 0.0% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 216,263 | $971,021 | 0.0% |
| Kingsview Wealth Management, LLC | 214,288 | $962,153 | 0.0% |
| Caption Management, LLC | 183,003 | $821,683 | 0.0% |
| Hillsdale Investment Management Inc. | 182,600 | $819,874 | 0.0% |
| Informed Momentum Co LLC | 170,470 | $765,410 | 0.1% |
| CITADEL ADVISORS LLC | 168,344 | $755,864 | 0.0% |