| 0.74% | % of Shares Held by All Insider |
| 88.36% | % of Shares Held by Institutions |
| 89.02% | % of Float Held by Institutions |
| 300 | Number of Institutions Holding Shares |
| Holder | Shares | Date Reported | % Out | Value |
|---|---|---|---|---|
| Blackrock Inc. | 4,664,616 | Mar 30, 2019 | 14.43% | 432,876,364 |
| Brown Capital Management, Inc. | 3,861,960 | Mar 30, 2019 | 11.94% | 358,389,888 |
| Vanguard Group, Inc. (The) | 3,624,394 | Mar 30, 2019 | 11.21% | 336,343,763 |
| Wasatch Advisors Inc | 1,232,837 | Mar 30, 2019 | 3.81% | 114,407,273 |
| State Street Corporation | 913,165 | Mar 30, 2019 | 2.82% | 84,741,712 |
| Conestoga Capital Advisors, LLC | 801,988 | Mar 30, 2019 | 2.48% | 74,424,486 |
| Dimensional Fund Advisors LP | 748,967 | Mar 30, 2019 | 2.32% | 69,504,137 |
| Alger (Fred) Management Inc | 662,770 | Mar 30, 2019 | 2.05% | 61,505,056 |
| ClearBridge Investments, LLC | 560,657 | Mar 30, 2019 | 1.73% | 52,028,969 |
| Northern Trust Corporation | 473,565 | Mar 30, 2019 | 1.46% | 43,946,832 |