Beneficial Ownership | | Purchase or
Sale | | Quantity | | Transaction
Date | | Price per Share
(including
commission) | | How Effected | |
| | | | | | | | | | | |
California State Teachers’ Retirement System | | Purchase | | 100 | | 12/14/2011 | | $ | 35.27 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 200 | | 12/15/2011 | | $ | 35.67 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 600 | | 12/16/2011 | | $ | 35.03 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 479 | | 12/16/2011 | | $ | 36.16 | | Open Market | |
California State Teachers’ Retirement System | | Purchase | | 100 | | 1/4/2012 | | $ | 38.71 | | Open Market | |
California State Teachers’ Retirement System | | Purchase | | 200 | | 1/12/2012 | | $ | 41.08 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 56,277 | | 1/17/2012 | | $ | 40.87 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 929 | | 1/20/2012 | | $ | 44.03 | | Open Market | |
California State Teachers’ Retirement System | | Purchase | | 685 | | 1/23/2012 | | $ | 43.89 | | Open Market | |
California State Teachers’ Retirement System | | Purchase | | 100 | | 1/30/2012 | | $ | 43.06 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 723 | | 2/2/2012 | | $ | 43.77 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 713 | | 2/3/2012 | | $ | 44.49 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 400 | | 2/7/2012 | | $ | 46.13 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 474 | | 2/7/2012 | | $ | 46.21 | | Open Market | |
California State Teachers’ Retirement System | | Purchase | | 1,142 | | 2/8/2012 | | $ | 47.73 | | Open Market | |
California State Teachers’ Retirement System | | Purchase | | 100 | | 2/8/2012 | | $ | 48.25 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 524 | | 2/8/2012 | | $ | 47.85 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 183 | | 2/8/2012 | | $ | 48.06 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 1 | | 2/8/2012 | | $ | 47.90 | | Open Market | |
California State Teachers’ Retirement System | | Sale | | 215,000 | | 2/9/2012 | | $ | 48.94 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 66,807 | | 2/7/2012 | | $ | 47.09 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 42,313 | | 2/7/2012 | | $ | 47.99 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 54,480 | | 2/7/2012 | | $ | 46.81 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 7,550 | | 2/7/2012 | | $ | 46.81 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 117,450 | | 2/7/2012 | | $ | 46.87 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 13,150 | | 2/7/2012 | | $ | 46.87 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 37,078 | | 2/7/2012 | | $ | 46.87 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 25,000 | | 2/7/2012 | | $ | 46.87 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 10,311 | | 2/7/2012 | | $ | 46.87 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 68,892 | | 2/7/2012 | | $ | 46.87 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 40,893 | | 2/7/2012 | | $ | 47.09 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 25,900 | | 2/7/2012 | | $ | 47.99 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 37,970 | | 2/7/2012 | | $ | 46.81 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 58,837 | | 2/7/2012 | | $ | 46.87 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 107,587 | | 2/7/2012 | | $ | 46.87 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 93,658 | | 2/8/2012 | | $ | 47.34 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 74,950 | | 2/8/2012 | | $ | 47.34 | | Open Market | |
Relational Investors Mid-Cap Fund I, L.P. | | Sale | | 70,690 | | 2/8/2012 | | $ | 47.34 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 17,413 | | 2/8/2012 | | $ | 47.34 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 13,150 | | 2/8/2012 | | $ | 47.34 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 37,078 | | 2/8/2012 | | $ | 47.34 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 25,000 | | 2/8/2012 | | $ | 47.34 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 10,312 | | 2/8/2012 | | $ | 47.34 | | Open Market | |
Relational Investors Mid-Cap Fund II, L.P. | | Sale | | 43,531 | | 2/8/2012 | | $ | 47.34 | | Open Market | |
