Exhibit A
Transactions by Reporting Persons in the last 60 days.
Beneficial Ownership |
| Purchase or |
| Quantity |
| Transaction |
| Price per |
| How |
Relational Investors LLC |
| Purchase |
| 5,383 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 14,400 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 19,918 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 7,402 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 5,383 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 25,483 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 68,168 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 94,288 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 35,039 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 25,483 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Coast Partners, L.P. |
| Purchase |
| 4,344 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Coast Partners, L.P. |
| Purchase |
| 11,620 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Coast Partners, L.P. |
| Purchase |
| 16,073 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Coast Partners, L.P. |
| Purchase |
| 5,973 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Coast Partners, L.P. |
| Purchase |
| 4,344 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Fund Partners, L.P. |
| Purchase |
| 407 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Fund Partners, L.P. |
| Purchase |
| 1,089 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Fund Partners, L.P. |
| Purchase |
| 1,506 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Fund Partners, L.P. |
| Purchase |
| 559 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Fund Partners, L.P. |
| Purchase |
| 407 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 6,513 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 12,195 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 5,227 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 16,869 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 7,229 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 8,955 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 4,559 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 1,954 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors Mid-Cap Fund II, L.P. |
| Purchase |
| 112,421 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors Mid-Cap Fund II, L.P. |
| Purchase |
| 300,725 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors Mid-Cap Fund II, L.P. |
| Purchase |
| 415,952 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors Mid-Cap Fund II, L.P. |
| Purchase |
| 154,579 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors Mid-Cap Fund II, L.P. |
| Purchase |
| 112,421 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors XV, L.P. |
| Purchase |
| 4,578 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors XV, L.P. |
| Purchase |
| 12,246 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors XV, L.P. |
| Purchase |
| 16,939 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors XV, L.P. |
| Purchase |
| 6,295 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors XV, L.P. |
| Purchase |
| 4,578 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors XVI, L.P. |
| Purchase |
| 2,550 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors XVI, L.P. |
| Purchase |
| 6,821 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors XVI, L.P. |
| Purchase |
| 9,435 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors XVI, L.P. |
| Purchase |
| 3,506 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors XVI, L.P. |
| Purchase |
| 2,550 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors XX, L.P. |
| Purchase |
| 4,049 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors XX, L.P. |
| Purchase |
| 10,832 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors XX, L.P. |
| Purchase |
| 14,983 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors XX, L.P. |
| Purchase |
| 5,568 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors XX, L.P. |
| Purchase |
| 4,049 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors XXIII, L.P. |
| Purchase |
| 5,687 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors XXIII, L.P. |
| Purchase |
| 15,213 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors XXIII, L.P. |
| Purchase |
| 21,043 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors XXIII, L.P. |
| Purchase |
| 7,820 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors XXIII, L.P. |
| Purchase |
| 5,687 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors XXIV, L.P. |
| Purchase |
| 3,392 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors XXIV, L.P. |
| Purchase |
| 9,073 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors XXIV, L.P. |
| Purchase |
| 12,550 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors XXIV, L.P. |
| Purchase |
| 4,664 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors XXIV, L.P. |
| Purchase |
| 3,392 |
| 7/30/2013 |
| 6.56 |
| Open Market |
RH Fund 1, L.P. |
| Purchase |
| 3,885 |
| 7/30/2013 |
| 6.43 |
| Open Market |
RH Fund 1, L.P. |
| Purchase |
| 10,392 |
| 7/30/2013 |
| 6.53 |
| Open Market |
RH Fund 1, L.P. |
| Purchase |
| 14,375 |
| 7/30/2013 |
| 6.54 |
| Open Market |
RH Fund 1, L.P. |
| Purchase |
| 5,342 |
| 7/30/2013 |
| 6.52 |
| Open Market |
RH Fund 1, L.P. |
| Purchase |
| 3,885 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 21,308 |
| 7/30/2013 |
| 6.43 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 56,999 |
| 7/30/2013 |
| 6.53 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 78,840 |
| 7/30/2013 |
| 6.54 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 29,298 |
| 7/30/2013 |
| 6.52 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 21,308 |
| 7/30/2013 |
| 6.56 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 11,825 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 2,755 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 4,899 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 55,976 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 13,042 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 23,190 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Coast Partners, L.P. |
| Purchase |
| 9,542 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Coast Partners, L.P. |
| Purchase |
| 2,223 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Coast Partners, L.P. |
| Purchase |
| 3,953 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Fund Partners, L.P. |
| Purchase |
| 896 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Fund Partners, L.P. |
| Purchase |
| 208 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Fund Partners, L.P. |
| Purchase |
| 369 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 10,015 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 4,292 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 3,333 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 4,149 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 1,778 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors Mid-Cap Fund II, L.P. |
| Purchase |
| 246,935 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors Mid-Cap Fund II, L.P. |
| Purchase |
| 57,537 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors Mid-Cap Fund II, L.P. |
| Purchase |
| 102,305 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XV, L.P. |
| Purchase |
| 10,056 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XV, L.P. |
| Purchase |
| 2,343 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors XV, L.P. |
| Purchase |
| 4,166 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XVI, L.P. |
| Purchase |
| 5,602 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XVI, L.P. |
| Purchase |
| 1,305 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors XVI, L.P. |
| Purchase |
| 2,320 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XX, L.P. |
| Purchase |
| 8,895 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XX, L.P. |
| Purchase |
| 2,072 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors XX, L.P. |
| Purchase |
| 3,685 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XXIII, L.P. |
| Purchase |
| 12,493 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XXIII, L.P. |
| Purchase |
| 2,910 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors XXIII, L.P. |
| Purchase |
| 5,175 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XXIV, L.P. |
| Purchase |
| 7,451 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors XXIV, L.P. |
| Purchase |
| 1,736 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors XXIV, L.P. |
| Purchase |
| 3,086 |
| 7/31/2013 |
| 6.58 |
| Open Market |
RH Fund 1, L.P. |
| Purchase |
| 8,534 |
| 7/31/2013 |
| 6.58 |
| Open Market |
RH Fund 1, L.P. |
| Purchase |
| 1,988 |
| 7/31/2013 |
| 6.59 |
| Open Market |
RH Fund 1, L.P. |
| Purchase |
| 3,535 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 46,805 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 10,905 |
| 7/31/2013 |
| 6.59 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 19,390 |
| 7/31/2013 |
| 6.58 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 8,733 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 41,339 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Coast Partners, L.P. |
| Purchase |
| 7,047 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Fund Partners, L.P. |
| Purchase |
| 660 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Investors IX, L.P. |
| Purchase |
| 10,565 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Investors Mid-Cap Fund II, L.P. |
| Purchase |
| 182,363 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Investors XV, L.P. |
| Purchase |
| 7,427 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Investors XVI, L.P. |
| Purchase |
| 4,137 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Investors XX, L.P. |
| Purchase |
| 6,569 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Investors XXIII, L.P. |
| Purchase |
| 9,226 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Investors XXIV, L.P. |
| Purchase |
| 5,502 |
| 8/1/2013 |
| 6.61 |
| Open Market |
RH Fund 1, L.P. |
| Purchase |
| 6,302 |
| 8/1/2013 |
| 6.61 |
| Open Market |
Relational Investors LLC |
| Purchase |
| 34,566 |
| 8/1/2013 |
| 6.61 |
| Open Market |
