| 2014-03-14 | KNIGHT TRANSPORTATION INC | A | +17.7K sh | — | — | 17,691 |
| 2014-01-31 | KNIGHT TRANSPORTATION INC | A | +2,250 sh | $21.35 | +$48K | 5,190,756 |
| 2014-01-31 | KNIGHT TRANSPORTATION INC | F | −796 sh | $21.35 | −$17K | 5,189,960 |
| 2013-12-30 | KNIGHT TRANSPORTATION INC | G | +38.8K sh | — | — | 5,231,773 |
| 2013-12-30 | KNIGHT TRANSPORTATION INC | G | +38.8K sh | — | — | 5,231,773 |
| 2013-12-24 | KNIGHT TRANSPORTATION INC | G | −6,760 sh | — | — | 5,225,013 |
| 2013-12-20 | KNIGHT TRANSPORTATION INC | G | −1,500 sh | — | — | 5,194,460 |
| 2013-12-20 | KNIGHT TRANSPORTATION INC | G | −1,500 sh | — | — | 5,192,960 |
| 2013-12-20 | KNIGHT TRANSPORTATION INC | G | −1,500 sh | — | — | 5,194,460 |
| 2013-12-20 | KNIGHT TRANSPORTATION INC | G | −1,500 sh | — | — | 5,192,960 |
| 2013-02-21 | KNIGHT TRANSPORTATION INC | G | +38K sh | — | — | 5,194,506 |
| 2013-01-31 | KNIGHT TRANSPORTATION INC | F | −1,432 sh | $15.95 | −$22.8K | 5,160,120 |
| 2013-01-31 | KNIGHT TRANSPORTATION INC | A | +4,050 sh | $15.95 | +$64.6K | 5,161,552 |
| 2012-12-28 | KNIGHT TRANSPORTATION INC | G | −1,807 sh | — | — | 5,158,313 |
| 2012-12-28 | KNIGHT TRANSPORTATION INC | G | −1,807 sh | — | — | 5,156,506 |
| 2012-01-31 | KNIGHT TRANSPORTATION INC | A | +3,600 sh | $17.61 | +$63.4K | 5,610,948 |
| 2012-01-31 | KNIGHT TRANSPORTATION INC | F | −1,169 sh | $17.61 | −$20.6K | 5,609,779 |
| 2011-12-30 | KNIGHT TRANSPORTATION INC | G | −849 sh | $15.30 | −$13K | 5,568,351 |
| 2011-12-30 | KNIGHT TRANSPORTATION INC | G | −126K sh | $15.64 | −$1.97M | 5,157,502 |
| 2011-12-30 | KNIGHT TRANSPORTATION INC | G | −142K sh | $15.64 | −$2.22M | 5,283,147 |
| 2011-12-30 | KNIGHT TRANSPORTATION INC | G | −142K sh | $15.64 | −$2.22M | 5,424,900 |
| 2011-12-30 | KNIGHT TRANSPORTATION INC | G | −849 sh | $15.30 | −$13K | 5,566,653 |
| 2011-12-30 | KNIGHT TRANSPORTATION INC | G | −849 sh | $15.30 | −$13K | 5,567,502 |
| 2011-12-30 | KNIGHT TRANSPORTATION INC | G | −849 sh | $15.30 | −$13K | 5,569,200 |
| 2011-12-29 | KNIGHT TRANSPORTATION INC | G | −97.1K sh | $15.52 | −$1.51M | 5,613,739 |
| 2011-12-29 | KNIGHT TRANSPORTATION INC | G | −97.1K sh | $15.52 | −$1.51M | 5,613,739 |
| 2011-12-29 | KNIGHT TRANSPORTATION INC | G | −97.1K sh | $15.52 | −$1.51M | 5,613,739 |
| 2011-12-28 | KNIGHT TRANSPORTATION INC | G | −32.4K sh | $15.30 | −$495K | 5,570,049 |
| 2011-12-27 | KNIGHT TRANSPORTATION INC | G | −11.3K sh | $15.66 | −$177K | 5,602,412 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,612,298 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,613,288 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,614,278 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,607,348 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,611,308 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,614,278 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,613,288 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,612,298 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,611,308 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,610,318 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,609,328 |
| 2011-09-23 | KNIGHT TRANSPORTATION INC | G | −990 sh | $13.07 | −$12.9K | 5,608,338 |
| 2011-01-31 | KNIGHT TRANSPORTATION INC | A | +2,700 sh | $19.06 | +$51.5K | 5,659,209 |
| 2011-01-31 | KNIGHT TRANSPORTATION INC | F | −877 sh | $19.06 | −$16.7K | 5,658,332 |
| 2010-12-27 | KNIGHT TRANSPORTATION INC | G | −42K sh | $19.08 | −$801K | 5,615,268 |
| 2010-08-02 | KNIGHT TRANSPORTATION INC | S | ▼−120K sh | $21.25 | ▼−$2.55M | 5,656,509 |
| 2009-12-24 | KNIGHT TRANSPORTATION INC | G | −43.5K sh | $19.52 | −$850K | 5,774,232 |
| 2009-12-15 | KNIGHT TRANSPORTATION INC | G | −281 sh | — | — | 5,657,268 |
| 2009-10-30 | KNIGHT TRANSPORTATION INC | M | +45K sh | $16.04 | +$722K | 0 |
| 2009-10-30 | KNIGHT TRANSPORTATION INC | A | +45K sh | — | — | 45,000 |
| 2009-08-28 | KNIGHT TRANSPORTATION INC | G | −301 sh | — | — | 5,657,549 |