| Date | Insider | Shares | Type | Transaction | Value* |
| 16-Dec-09 | BLOTT PETER J Officer | 375 | Direct | Disposition (Non Open Market) at $31.78 per share. | $11,917 |
| 10-Dec-09 | CHAUDHURI BHASKAR Officer | 6,910 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 7-Dec-09 | PEARSON J. MICHAEL Officer | 188,875 | Direct | Disposition (Non Open Market) at $31.93 per share. | $6,030,778 |
| 20-Nov-09 | CHAUDHURI BHASKAR Officer | 3,000 | Indirect | Purchase at $33.31 per share. | $99,930 |
| 18-Nov-09 | HEALTHCOR OFFSHORE GP, LLC Beneficial Owner (10% or more) | 3,000,000 | Indirect | Sale at $32.25 per share. | $96,750,000 |
| 18-Nov-09 | HEALTHCOR MANAGEMENT, L.P. Beneficial Owner (10% or more) | 3,000,000 | Indirect | Sale at $32.25 per share. | $96,750,000 |
| 18-Nov-09 | CHAUDHURI BHASKAR Officer | 2,385 | Indirect | Purchase at $33.58 per share. | $80,088 |
| 12-Nov-09 | PROVENCIO NORMA ANN Director | 1,000 | Direct | Purchase at $33.25 per share. | $33,250 |
| 10-Nov-09 | CHAUDHURI BHASKAR Officer | 1,525 | Indirect | Purchase at $32.81 per share. | $50,035 |
| 4-Nov-09 | STEFANO STEPHEN F. Director | 1,635 | Direct | Purchase at $30.82 per share. | $50,390 |
| 1-Oct-09 | STEFANO STEPHEN F. Director | 323 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Oct-09 | LONNER ANDERS Director | 602 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Oct-09 | PROVENCIO NORMA ANN Director | 763 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Oct-09 | MELAS KYRIAZI THEO Director | 346 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Oct-09 | INGRAM ROBERT ALEXANDER Director | 602 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Oct-09 | KOPPES RICHARD Director | 289 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Oct-09 | KUGELMAN LARRY Director | 335 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 10-Sep-09 | CHAUDHURI BHASKAR Officer | 3,373 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 10-Sep-09 | DE SILVA RAJIV Officer | 9,007 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 10-Sep-09 | CHAUDHURI BHASKAR Officer | 3,373 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 4-Sep-09 | STEFANO STEPHEN F. Director | 2,875 | Direct | Purchase at $26.03 per share. | $74,836 |
| 24-Aug-09 | DE SILVA RAJIV Officer | 9,007 | Direct | Purchase at $24.98 per share. | $224,994 |
| 14-Aug-09 | CHAUDHURI BHASKAR Officer | 3,373 | Indirect | Purchase at $26.69 per share. | $90,025 |
| 11-Aug-09 | MIN STEVE T. Officer | 1,043 | Direct | Disposition (Non Open Market) at $26.63 per share. | $27,775 |
| 10-Aug-09 | STEFANO STEPHEN F. Director | 1,870 | Direct | Purchase at $26.64 per share. | $49,816 |
| 28-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 300 | Indirect | Purchase at $24.97 per share. | $7,491 |
| 27-Jul-09 | KARLSON ELISA A. Officer | 1,631 | Direct | Disposition (Non Open Market) at $24.99 per share. | $40,758 |
| 27-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 25,000 | Indirect | Purchase at $24.91 per share. | $622,750 |
| 24-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 14,100 | Indirect | Purchase at $24.88 per share. | $350,808 |
| 23-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 25,000 | Indirect | Purchase at $24.75 per share. | $618,750 |
| 23-Jul-09 | PEARSON J. MICHAEL Officer | 34,803 | Direct | Disposition (Non Open Market) at $24.73 per share. | $860,678 |
| 22-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 25,000 | Indirect | Purchase at $24.36 per share. | $609,000 |
| 21-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.76 per share. | $1,188,000 |
| 20-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.60 per share. | $1,180,000 |
| 17-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.78 per share. | $1,189,000 |
| 16-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.53 per share. | $1,176,500 |
| 15-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.59 per share. | $1,179,500 |
| 14-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.34 per share. | $1,167,000 |
| 13-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $22.94 per share. | $1,147,000 |
| 10-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $22.78 per share. | $2,278,000 |
| 9-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $22.92 per share. | $2,292,000 |
| 8-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.69 per share. | $1,184,500 |
| 7-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $24.16 per share. | $1,208,000 |
| 6-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 5,110 | Indirect | Purchase at $24.95 per share. | $127,494 |
| 2-Jul-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 2,400 | Indirect | Purchase at $24.99 per share. | $59,975 |
| 1-Jul-09 | STEFANO STEPHEN F. Director | 339 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Jul-09 | LONNER ANDERS Director | 629 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Jul-09 | PROVENCIO NORMA ANN Director | 799 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Jul-09 | MELAS KYRIAZI THEO Director | 363 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Jul-09 | INGRAM ROBERT ALEXANDER Director | 629 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Jul-09 | KOPPES RICHARD Director | 302 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Jul-09 | KUGELMAN LARRY Director | 351 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 29-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 900 | Indirect | Purchase at $24.99 per share. | $22,491 |
| 26-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 25,000 | Indirect | Purchase at $24.93 per share. | $623,250 |
| 25-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 1,600 | Indirect | Purchase at $24.59 per share. | $39,344 |
| 24-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 25,000 | Indirect | Purchase at $24.47 per share. | $611,750 |
| 23-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.74 per share. | $1,187,000 |
| 22-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 39,100 | Indirect | Purchase at $23.92 per share. | $935,272 |
| 19-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.79 per share. | $1,189,500 |
| 18-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $23.29 per share. | $1,164,500 |
| 17-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 77,724 | Indirect | Purchase at $23.01 per share. | $1,788,429 |
| 16-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $22.83 per share. | $2,283,000 |
| 12-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $22.98 per share. | $2,298,000 |
| 11-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 68,085 | Indirect | Purchase at $23 per share. | $1,565,955 |
| 10-Jun-09 | CHAUDHURI BHASKAR Officer | 6,010 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 10-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $22.53 per share. | $2,253,000 |
| 9-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $22.91 per share. | $2,291,000 |
| 8-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $23.20 per share. | $2,320,000 |
| 5-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 8,391 | Indirect | Purchase at $23.25 per share. | $195,090 |
| 4-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $23.30 per share. | $2,330,000 |
| 3-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $23.08 per share. | $2,308,000 |
| 2-Jun-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $23.51 - $23.61 per share. | $2,356,0002 |
| 28-May-09 | KUGELMAN LARRY Director | 57 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-May-09 | MELAS KYRIAZI THEO Director | 57 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-May-09 | PROVENCIO NORMA ANN Director | 115 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-May-09 | STEFANO STEPHEN F. Director | 38 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 26-May-09 | CHAUDHURI BHASKAR Officer | 1,352 | Direct | Purchase at $22.19 per share. | $30,000 |
| 18-May-09 | CHAUDHURI BHASKAR Officer | 1,360 | Direct | Purchase at $22.06 per share. | $30,001 |
| 15-May-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 56,264 | Indirect | Purchase at $19.75 - $19.89 per share. | $1,115,0002 |
| 14-May-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 300,000 | Indirect | Purchase at $19.54 - $19.78 per share. | $5,898,0002 |
| 14-May-09 | MELAS KYRIAZI THEO Director | 15,000 | Direct | Purchase at $19.50 - $19.54 per share. | $293,0002 |
| 13-May-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 280,000 | Indirect | Purchase at $19.67 - $19.86 per share. | $5,534,0002 |
| 12-May-09 | STEFANO STEPHEN F. Director | 6,686 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 12-May-09 | STEFANO STEPHEN F. Director | 2,000 | Direct | Purchase at $19.78 per share. | $39,560 |
| 12-May-09 | LONNER ANDERS Director | 6,740 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 12-May-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 318,115 | Indirect | Purchase at $19.81 - $19.85 per share. | $6,308,0002 |
| 12-May-09 | PROVENCIO NORMA ANN Director | 6,845 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 12-May-09 | MORFIT G MASON Director | 6,546 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 12-May-09 | MELAS KYRIAZI THEO Director | 6,678 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 12-May-09 | INGRAM ROBERT ALEXANDER Director | 8,788 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 12-May-09 | KOPPES RICHARD Director | 6,660 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 12-May-09 | KUGELMAN LARRY Director | 6,695 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 11-May-09 | CHAUDHURI BHASKAR Officer | 1,538 | Direct | Purchase at $19.50 per share. | $29,991 |
| 11-May-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 430,000 | Indirect | Purchase at $19.10 - $19.46 per share. | $8,290,0002 |
| 8-May-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 560,268 | Indirect | Purchase at $19.48 - $19.64 per share. | $10,959,0002 |
| 7-May-09 | PEARSON J. MICHAEL Officer | 7,000 | Direct | Purchase at $18.51 per share. | $129,570 |
| 7-May-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 647,246 | Indirect | Purchase at $18.88 - $18.95 per share. | $12,243,0002 |
| 4-May-09 | CHAUDHURI BHASKAR Officer | 1,760 | Direct | Purchase at $17.05 per share. | $30,008 |
| 27-Apr-09 | CHAUDHURI BHASKAR Officer | 1,732 | Direct | Purchase at $17.32 per share. | $29,998 |
| 20-Apr-09 | CHAUDHURI BHASKAR Officer | 1,703 | Direct | Purchase at $17.62 per share. | $30,006 |
| 13-Apr-09 | KARLSON ELISA A. Officer | 5,322 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Apr-09 | STEFANO STEPHEN F. Director | 210 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Apr-09 | LONNER ANDERS Director | 419 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Apr-09 | PROVENCIO NORMA ANN Director | 559 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Apr-09 | MELAS KYRIAZI THEO Director | 262 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Apr-09 | INGRAM ROBERT ALEXANDER Director | 419 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Apr-09 | KOPPES RICHARD Director | 210 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Apr-09 | KUGELMAN LARRY Director | 210 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 30-Mar-09 | LONNER ANDERS Director | 172 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 30-Mar-09 | PROVENCIO NORMA ANN Director | 301 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 30-Mar-09 | MELAS KYRIAZI THEO Director | 43 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 30-Mar-09 | INGRAM ROBERT ALEXANDER Director | 258 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 30-Mar-09 | KOPPES RICHARD Director | 151 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 30-Mar-09 | KUGELMAN LARRY Director | 151 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 25-Mar-09 | STEFANO STEPHEN F. Director | 17 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 16-Mar-09 | BLOTT PETER J Officer | 4,750 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 11-Mar-09 | KARLSON ELISA A. Officer | 5,322 | Direct | Purchase at $16.97 per share. | $90,314 |
| 11-Mar-09 | BLOTT PETER J Officer | 4,750 | Direct | Purchase at $16.78 per share. | $79,705 |
| 10-Mar-09 | CHAUDHURI BHASKAR Officer | 77,839 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 10-Mar-09 | DE SILVA RAJIV Officer | 11,595 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 6-Mar-09 | KOPPES RICHARD Director | 1,500 | Direct | Purchase at $16.02 per share. | $24,030 |
| 2-Mar-09 | PROVENCIO NORMA ANN Director | 316 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 2-Mar-09 | MELAS KYRIAZI THEO Director | 158 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 2-Mar-09 | INGRAM ROBERT ALEXANDER Director | 92 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 2-Mar-09 | KOPPES RICHARD Director | 46 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 2-Mar-09 | KUGELMAN LARRY Director | 158 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 27-Feb-09 | DE SILVA RAJIV Officer | 11,595 | Direct | Purchase at $17.28 per share. | $200,361 |
| 26-Feb-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 1,075,700 | Indirect | Acquisition (Non Open Market) at $17.53 per share. | $18,857,021 |
| 26-Feb-09 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 1,075,700 | Indirect | Disposition (Non Open Market) at $17.53 per share. | $18,857,021 |
| 26-Feb-09 | PROVENCIO NORMA ANN Director | 2,500 | Direct | Purchase at $17.75 per share. | $44,375 |
| 7-Jan-09 | LONNER ANDERS Director | 319 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 5-Jan-09 | DE SILVA RAJIV Officer | 66,434 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 2-Jan-09 | PROVENCIO NORMA ANN Director | 435 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 2-Jan-09 | MELAS KYRIAZI THEO Director | 204 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 2-Jan-09 | INGRAM ROBERT ALEXANDER Director | 326 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 2-Jan-09 | KOPPES RICHARD Director | 163 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 2-Jan-09 | KUGELMAN LARRY Director | 163 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 29-Dec-08 | PROVENCIO NORMA ANN Director | 254 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 29-Dec-08 | INGRAM ROBERT ALEXANDER Director | 169 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 16-Dec-08 | BLOTT PETER J Officer | 4,100 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Nov-08 | PROVENCIO NORMA ANN Director | 328 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Nov-08 | INGRAM ROBERT ALEXANDER Director | 348 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 21-Nov-08 | PROVENCIO NORMA ANN Director | 2,859 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 14-Nov-08 | BLOTT PETER J Officer | 4,100 | Direct | Purchase at $18.24 per share. | $74,784 |
| 29-Oct-08 | HEALTHCOR MANAGEMENT, L.P. Beneficial Owner (10% or more) | 1,000,000 | Indirect | Purchase at $15.76 per share. | $15,760,000 |
| 28-Oct-08 | PROVENCIO NORMA ANN Director | 145 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Oct-08 | INGRAM ROBERT ALEXANDER Director | 92 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 15-Oct-08 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 308,000 | Indirect | Acquisition (Non Open Market) at $17.53 per share. | $5,399,240 |
| 15-Oct-08 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 308,000 | Indirect | Disposition (Non Open Market) at $17.53 per share. | $5,399,240 |
| 1-Oct-08 | PROVENCIO NORMA ANN Director | 488 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Oct-08 | INGRAM ROBERT ALEXANDER Director | 366 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 29-Sep-08 | PROVENCIO NORMA ANN Director | 74 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 29-Sep-08 | INGRAM ROBERT ALEXANDER Director | 37 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 19-Sep-08 | HEALTHCOR MANAGEMENT, L.P. Beneficial Owner (10% or more) | 500,000 | Indirect | Option Exercise at $20 per share. | $10,000,000 |
| 10-Sep-08 | MIN STEVE T. Officer | 3,641 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Aug-08 | PROVENCIO NORMA ANN Director | 711 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Aug-08 | INGRAM ROBERT ALEXANDER Director | 560 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 11-Aug-08 | MIN STEVE T. Officer | 1,705 | Direct | Purchase at $19.55 per share. | $33,332 |
| 11-Aug-08 | KARLSON ELISA A. Officer | 2,160 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 11-Aug-08 | PEARSON J. MICHAEL Officer | 51,440 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 4-Aug-08 | MIN STEVE T. Officer | 1,936 | Direct | Purchase at $17.22 per share. | $33,337 |
| 28-Jul-08 | PROVENCIO NORMA ANN Director | 391 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Jul-08 | INGRAM ROBERT ALEXANDER Director | 298 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Jul-08 | BLOTT PETER J Officer | 47,600 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Jul-08 | MIN STEVE T. Officer | 1,890 | Direct | Purchase at $17.64 per share. | $33,339 |
| 24-Jul-08 | HEALTHCOR MANAGEMENT, L.P. Beneficial Owner (10% or more) | 8,500,000 | Indirect | Statement of Ownership | N/A |
| 21-Jul-08 | MIN STEVE T. Officer | 1,928 | Direct | Purchase at $17.29 per share. | $33,335 |
| 14-Jul-08 | MIN STEVE T. Officer | 1,962 | Direct | Purchase at $16.99 per share. | $33,334 |
| 10-Jul-08 | PEARSON J. MICHAEL Officer | 198,013 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 10-Jul-08 | KARLSON ELISA A. Officer | 8,342 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 7-Jul-08 | MIN STEVE T. Officer | 2,054 | Direct | Purchase at $16.23 per share. | $33,336 |
| 3-Jul-08 | PEARSON J. MICHAEL Officer | 51,440 | Direct | Purchase at $16.20 per share. | $833,328 |
| 3-Jul-08 | KARLSON ELISA A. Officer | 2,160 | Direct | Purchase at $16.20 per share. | $34,992 |
| 1-Jul-08 | PROVENCIO NORMA ANN Director | 445 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Jul-08 | INGRAM ROBERT ALEXANDER Director | 445 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 30-Jun-08 | MIN STEVE T. Officer | 39,039 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 30-Jun-08 | PROVENCIO NORMA ANN Director | 410 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 30-Jun-08 | INGRAM ROBERT ALEXANDER Director | 264 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 27-Jun-08 | KARLSON ELISA A. Officer | 2,049 | Direct | Purchase at $17.08 per share. | $34,996 |
| 26-Jun-08 | PEARSON J. MICHAEL Officer | 48,761 | Direct | Purchase at $17.09 per share. | $833,325 |
| 20-Jun-08 | KARLSON ELISA A. Officer | 2,056 | Direct | Purchase at $17.02 per share. | $34,993 |
| 19-Jun-08 | PEARSON J. MICHAEL Officer | 48,847 | Direct | Purchase at $17.06 per share. | $833,329 |
| 13-Jun-08 | KARLSON ELISA A. Officer | 2,080 | Direct | Purchase at $16.83 per share. | $35,006 |
| 12-Jun-08 | PEARSON J. MICHAEL Officer | 49,900 | Direct | Purchase at $16.70 per share. | $833,330 |
| 10-Jun-08 | PEARSON J. MICHAEL Officer | 50,906 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 10-Jun-08 | KARLSON ELISA A. Officer | 2,138 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 6-Jun-08 | KARLSON ELISA A. Officer | 2,157 | Direct | Purchase at $16.23 per share. | $35,008 |
| 5-Jun-08 | PEARSON J. MICHAEL Officer | 50,505 | Direct | Purchase at $16.50 per share. | $833,332 |
| 30-May-08 | KARLSON ELISA A. Officer | 2,138 | Direct | Purchase at $16.37 per share. | $34,999 |
| 30-May-08 | PEARSON J. MICHAEL Officer | 50,906 | Direct | Purchase at $16.37 per share. | $833,331 |
| 28-May-08 | PROVENCIO NORMA ANN Director | 489 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-May-08 | INGRAM ROBERT ALEXANDER Director | 186 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 20-May-08 | VALUEACT HOLDINGS, L.P. Beneficial Owner (10% or more) | 7,757 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 20-May-08 | PROVENCIO NORMA ANN Director | 7,757 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 20-May-08 | MORFIT G MASON Director | 7,757 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 20-May-08 | MELAS KYRIAZI THEO Director | 7,757 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 20-May-08 | INGRAM ROBERT ALEXANDER Director | 10,343 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 20-May-08 | KOPPES RICHARD Director | 7,757 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 20-May-08 | KUGELMAN LARRY Director | 7,757 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 20-May-08 | KARLSON ELISA A. Officer | 49,847 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Apr-08 | PROVENCIO NORMA ANN Director | 120 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Apr-08 | INGRAM ROBERT ALEXANDER Director | 55 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 1-Apr-08 | PROVENCIO NORMA ANN Director | 706 | Direct | Acquisition (Non Open Market) at $13.28 per share. | $9,375 |
| 1-Apr-08 | INGRAM ROBERT ALEXANDER Director | 565 | Direct | Acquisition (Non Open Market) at $13.28 per share. | $7,503 |
| 28-Mar-08 | PROVENCIO NORMA ANN Director | 376 | Direct | Acquisition (Non Open Market) at $12.63 per share. | $4,748 |
| 28-Mar-08 | INGRAM ROBERT ALEXANDER Director | 178 | Direct | Acquisition (Non Open Market) at $12.63 per share. | $2,248 |
| 28-Feb-08 | PROVENCIO NORMA ANN Director | 702 | Direct | Acquisition (Non Open Market) at $14.43 per share. | $10,129 |
| 28-Feb-08 | INGRAM ROBERT ALEXANDER Director | 312 | Direct | Acquisition (Non Open Market) at $14.43 per share. | $4,502 |
| 1-Feb-08 | PEARSON J. MICHAEL Officer | 244,500 | Direct | Acquisition (Non Open Market) at $0 per share. | N/A |
| 28-Jan-08 | PROVENCIO NORMA ANN Director | 442 | Direct | Acquisition (Non Open Market) at $11.89 per share. | $5,255 |
| 28-Jan-08 | INGRAM ROBERT ALEXANDER Director | 252 | Direct | Acquisition (Non Open Market) at $11.89 per share. | $2,996 |
| 2-Jan-08 | PROVENCIO NORMA ANN Director | 783 | Direct | Acquisition (Non Open Market) at $11.98 per share. | $9,380 |
| 2-Jan-08 | INGRAM ROBERT ALEXANDER Director | 626 | Direct | Acquisition (Non Open Market) at $11.98 per share. | $7,499 |
| 1-Jan-08 | ULLIAN ELAINE Director | 7,707 | Direct | Disposition (Non Open Market) at $0 per share. | N/A |