| BlackRock, Inc. | 12,713,156 | $241.3m | 0.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 8,197,286 | $155.6m | 0.0% |
| FMR LLC | 7,759,426 | $147.3m | 0.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6,225,195 | $118.2m | 0.0% |
| WELLINGTON MANAGEMENT GROUP LLP | 6,044,492 | $114.7m | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | 5,260,132 | $99.8m | 0.0% |
| Boston Partners | 5,013,835 | $95.9m | 0.1% |
| AMERICAN CENTURY COMPANIES INC | 4,622,736 | $87.7m | 0.0% |
| Capital Research Global Investors | 3,869,159 | $73.4m | 0.0% |
| Nuveen, LLC | 3,794,811 | $72.0m | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 3,789,959 | $71.9m | 0.0% |
| Edenbrook Capital, LLC | 3,555,615 | $67.5m | 13.6% |
| STATE STREET CORP | 3,528,075 | $67.0m | 0.0% |
| 325 CAPITAL LLC | 3,412,694 | $64.8m | 15.4% |
| Nine Ten Capital Management LLC | 3,261,283 | $61.9m | 19.3% |
| Granahan Investment Management, LLC | 3,083,211 | $58.5m | 2.1% |
| CANADA PENSION PLAN INVESTMENT BOARD | 2,995,093 | $56.8m | 0.0% |
| JANE STREET GROUP, LLC | 2,199,191 | $41.7m | 0.0% |
| Park West Asset Management LLC | 2,000,000 | $38.0m | 2.6% |
| MORGAN STANLEY | 1,991,732 | $37.8m | 0.0% |
| Qube Research & Technologies Ltd | 1,955,989 | $37.1m | 0.0% |
| Blue Grotto Capital, LLC | 1,706,741 | $32.4m | 2.7% |
| KENNEDY CAPITAL MANAGEMENT LLC | 1,666,799 | $31.6m | 0.6% |
| NORTHERN TRUST CORP | 1,553,412 | $29.5m | 0.0% |
| ROYCE & ASSOCIATES LP | 1,473,397 | $28.0m | 0.2% |