| Insider | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
| Officer | $55.00 | 20,000 | $1,100,000.00 | 38,172 | 2011-02-25 | Filing |
| Large Shareholder | $52.94 | 78,334 | $4,147,001.96 | 19,578,631 | 2011-02-24 | Filing |
| Large Shareholder | $52.94 | 78,334 | $4,147,001.96 | 2,895,254 | 2011-02-24 | Filing |
| Large Shareholder, Officer, Director | $52.18 | 85,729 | $4,473,339.22 | 2,973,956 | 2011-02-14 | Filing |
| Large Shareholder | $52.18 | 85,729 | $4,473,339.22 | 19,656,965 | 2011-02-14 | Filing |
| Large Shareholder, Director | $52.43 | 19,300 | $1,011,899.00 | 3,370,369 | 2011-02-07 | Filing |
| Large Shareholder, Director | $52.35 | 45,493 | $2,381,558.55 | 3,389,669 | 2011-02-04 | Filing |
| Large Shareholder | $52.43 | 19,300 | $1,011,899.00 | 19,742,694 | 2011-02-07 | Filing |
| Large Shareholder | $52.35 | 45,493 | $2,381,558.55 | 19,761,994 | 2011-02-04 | Filing |
| Large Shareholder | $50.51 | 85,729 | $4,330,171.79 | 19,807,487 | 2010-12-10 | Filing |
| Large Shareholder, Officer, Director | $50.51 | 85,729 | $4,330,171.79 | 3,059,685 | 2010-12-10 | Filing |
| Officer | $50.07 | 100 | $5,007.30 | 44,059 | 2010-11-10 | Filing |
| Officer | $50.09 | 300 | $15,027.00 | 44,159 | 2010-11-10 | Filing |
| Officer | $50.10 | 900 | $45,090.00 | 44,459 | 2010-11-10 | Filing |
| Officer | $50.11 | 400 | $20,044.00 | 45,359 | 2010-11-10 | Filing |
| Officer | $50.12 | 997 | $49,969.64 | 45,759 | 2010-11-10 | Filing |
| Officer | $50.13 | 2,188 | $109,684.44 | 46,756 | 2010-11-10 | Filing |
| Officer | $50.14 | 2,095 | $105,043.30 | 48,944 | 2010-11-10 | Filing |
| Officer | $50.15 | 3,495 | $175,274.25 | 51,039 | 2010-11-10 | Filing |
| Officer | $50.16 | 4,120 | $206,659.20 | 54,534 | 2010-11-10 | Filing |