| SC 13G/A | 2017-11-08 | WASATCH ADVISORS INC | KNIGHT TRANSPORTATION INC | - | - | EDGAR |
| SC 13G/A | 2017-02-14 | WASATCH ADVISORS INC | KNIGHT TRANSPORTATION INC | - | - | EDGAR |
| SC 13G/A | 2017-02-10 | VANGUARD GROUP INC | KNIGHT TRANSPORTATION INC | 5,413,699 | 6.8% | EDGAR |
| SC 13G/A | 2017-02-09 | WELLINGTON MANAGEMENT GROUP LLP | KNIGHT TRANSPORTATION INC | 9,093,832 | 11.4% | EDGAR |
| SC 13G/A | 2017-01-25 | BlackRock Inc. | KNIGHT TRANSPORTATION INC | 7,274,714 | 9.1% | EDGAR |
| SC 13G/A | 2017-01-09 | Bank of New York Mellon Corp | KNIGHT TRANSPORTATION INC | 3,421,975 | 4.3% | EDGAR |
| SC 13G/A | 2016-08-09 | WELLINGTON MANAGEMENT GROUP LLP | KNIGHT TRANSPORTATION INC | 8,802,538 | 11.0% | EDGAR |
| SC 13G/A | 2016-02-16 | WASATCH ADVISORS INC | KNIGHT TRANSPORTATION INC | - | - | EDGAR |
| SC 13G | 2016-02-11 | WELLINGTON MANAGEMENT GROUP LLP | KNIGHT TRANSPORTATION INC | 4,260,468 | 5.3% | EDGAR |
| SC 13G | 2016-02-10 | VANGUARD GROUP INC | KNIGHT TRANSPORTATION INC | 4,613,670 | 5.7% | EDGAR |
| SC 13G/A | 2016-01-26 | BlackRock Inc. | KNIGHT TRANSPORTATION INC | 5,691,878 | 7.0% | EDGAR |
| SC 13G | 2016-01-26 | Bank of New York Mellon Corp | KNIGHT TRANSPORTATION INC | 4,273,758 | 5.3% | EDGAR |
| SC 13D/A | 2015-11-12 | KNIGHT TRANSPORTATION INC | USA TRUCK INC | 501,558 | 4.9% | EDGAR |
| SC 13D/A | 2015-09-17 | KNIGHT TRANSPORTATION INC | USA TRUCK INC | 606,410 | 5.7% | EDGAR |
| SC 13D/A | 2015-06-23 | KNIGHT TRANSPORTATION INC | USA TRUCK INC | 719,682 | 6.8% | EDGAR |
| SC 13D/A | 2015-03-06 | KNIGHT TRANSPORTATION INC | USA TRUCK INC | 839,101 | 8.0% | EDGAR |
| SC 13G/A | 2015-02-17 | WASATCH ADVISORS INC | KNIGHT TRANSPORTATION INC | - | - | EDGAR |
| SC 13G/A | 2015-01-30 | BlackRock Inc. | KNIGHT TRANSPORTATION INC | 5,118,428 | 6.3% | EDGAR |
| SC 13D/A | 2015-01-07 | KNIGHT TRANSPORTATION INC | USA TRUCK INC | 944,517 | 9.0% | EDGAR |
| SC 13G/A | 2014-12-10 | WASATCH ADVISORS INC | KNIGHT TRANSPORTATION INC | - | - | EDGAR |