| BlackRock, Inc. | 4,094,472 | $1.4bn | 0.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1,587,483 | $555.7m | 0.0% |
| Invesco Ltd. | 1,505,723 | $527.1m | 0.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1,168,130 | $408.9m | 0.0% |
| STATE STREET CORP | 1,088,666 | $381.1m | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 754,650 | $264.2m | 0.0% |
| T. Rowe Price Investment Management, Inc. | 703,524 | $246.3m | 0.2% |
| DIMENSIONAL FUND ADVISORS LP | 604,176 | $211.5m | 0.0% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 548,711 | $192.1m | 0.0% |
| WASATCH ADVISORS LP | 477,687 | $167.2m | 1.1% |
| Capital World Investors | 474,911 | $166.2m | 0.0% |
| MORGAN STANLEY | 454,821 | $159.2m | 0.0% |
| GENEVA CAPITAL MANAGEMENT LLC | 449,149 | $157.2m | 3.6% |
| Conestoga Capital Advisors, LLC | 447,077 | $156.5m | 3.4% |
| NEUBERGER BERMAN GROUP LLC | 353,125 | $123.6m | 0.1% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 343,856 | $120.4m | 0.8% |
| AMERICAN CENTURY COMPANIES INC | 334,828 | $117.2m | 0.1% |
| Hood River Capital Management LLC | 330,297 | $115.6m | 0.8% |
| Nuveen, LLC | 313,925 | $109.9m | 0.0% |
| NORGES BANK | 311,551 | $109.1m | 0.0% |
| FMR LLC | 305,227 | $106.8m | 0.0% |
| HAWK RIDGE CAPITAL MANAGEMENT LP | 301,500 | $105.5m | 3.4% |
| NORTHERN TRUST CORP | 300,093 | $105.0m | 0.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 299,912 | $105.0m | 0.0% |
| Driehaus Capital Management LLC | 287,995 | $100.8m | 0.6% |