| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2010-02-12 | PRICE T ROWE ASSOCIATES INC /MD/ | O REILLY AUTOMOTIVE INC | 16,301,650 | 11.8% | EDGAR |
| SC 13G/A | 2010-02-09 | Capital Research Global Investors | O REILLY AUTOMOTIVE INC | 1,875,000 | 1.4% | EDGAR |
| SC 13G/A | 2009-06-10 | PRICE T ROWE ASSOCIATES INC /MD/ | O REILLY AUTOMOTIVE INC | 14,115,890 | 10.4% | EDGAR |
| SC 13G/A | 2009-02-17 | WASATCH ADVISORS INC | O REILLY AUTOMOTIVE INC | - | - | EDGAR |
| SC 13G/A | 2009-02-17 | SELECT EQUITY GROUP INC | O REILLY AUTOMOTIVE INC | 2,827,184 | 2.1% | EDGAR |
| SC 13G/A | 2009-02-17 | Capital Research Global Investors | O REILLY AUTOMOTIVE INC | 8,176,300 | 6.1% | EDGAR |
| SC 13G/A | 2009-02-13 | PRICE T ROWE ASSOCIATES INC /MD/ | O REILLY AUTOMOTIVE INC | 8,315,534 | 6.1% | EDGAR |
| SC 13G/A | 2008-02-14 | SELECT EQUITY GROUP INC | O REILLY AUTOMOTIVE INC | 5,648,864 | 4.9% | EDGAR |
| SC 13G/A | 2008-02-12 | PRICE T ROWE ASSOCIATES INC /MD/ | O REILLY AUTOMOTIVE INC | 9,963,300 | 8.6% | EDGAR |
| SC 13G | 2008-02-11 | Capital Research Global Investors | O REILLY AUTOMOTIVE INC | 7,961,910 | 6.9% | EDGAR |
| SC 13G/A | 2007-02-15 | WASATCH ADVISORS INC | O REILLY AUTOMOTIVE INC | - | - | EDGAR |
| SC 13G/A | 2007-02-15 | SELECT EQUITY GROUP INC | O REILLY AUTOMOTIVE INC | 6,286,221 | 5.5% | EDGAR |
| SC 13G/A | 2007-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | O REILLY AUTOMOTIVE INC | 9,775,050 | 8.6% | EDGAR |
| SC 13G/A | 2006-02-15 | SELECT EQUITY GROUP INC | O REILLY AUTOMOTIVE INC | 6,370,078 | 5.7% | EDGAR |
| SC 13G/A | 2006-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | O REILLY AUTOMOTIVE INC | 9,404,720 | 8.3% | EDGAR |
| SC 13G/A | 2006-02-14 | WASATCH ADVISORS INC | O REILLY AUTOMOTIVE INC | - | - | EDGAR |
| SC 13G/A | 2005-03-10 | WASATCH ADVISORS INC | O REILLY AUTOMOTIVE INC | - | - | EDGAR |
| SC 13G/A | 2005-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | O REILLY AUTOMOTIVE INC | 4,600,201 | 8.3% | EDGAR |
| SC 13G/A | 2005-02-14 | WASATCH ADVISORS INC | O REILLY AUTOMOTIVE INC | - | - | EDGAR |
| SC 13G/A | 2005-02-14 | SELECT EQUITY GROUP INC | O REILLY AUTOMOTIVE INC | 3,259,605 | 5.9% | EDGAR |