| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| GM | Vice President & CIO | Feb 22, 2012 | Option Exercise | $26.69 | 5,170 | 137,987 | 35,845 | Feb 24, 2012, 10:17 AM |
| GM | Vice President & CIO | Dec 31, 2011 | Option Exercise | $20.21 | 1,082 | 21,867 | 32,232 | Jan 04, 2012, 06:00 PM |
| GM | Vice President & CIO | Nov 14, 2011 | Option Exercise | $23.00 | 3,100 | 71,300 | 30,333 | Nov 16, 2011, 02:59 PM |
| GM | Vice President & CIO | Sep 30, 2011 | Option Exercise | $20.30 | 1,491 | 30,267 | 24,689 | Oct 04, 2011, 12:48 PM |
| GM | Vice President & CIO | Jun 30, 2011 | Option Exercise | $30.39 | 1,432 | 43,518 | 15,692 | Jul 05, 2011, 04:48 PM |
| GM | Vice President & CIO | Mar 31, 2011 | Option Exercise | $31.28 | 3,158 | 98,782 | 1,246 | Apr 04, 2011, 03:11 PM |
| GM | Vice President & CIO | Mar 31, 2011 | Option Exercise | $31.28 | 1,492 | 46,670 | 200 | Apr 04, 2011, 03:11 PM |
| GM | Vice President & CIO | Dec 31, 2010 | Option Exercise | $36.77 | 883 | 32,468 | 653 | Jan 04, 2011, 01:47 PM |
| GM | Vice President & CIO | Dec 31, 2010 | Option Exercise | $36.77 | 503 | 18,495 | 150 | Jan 04, 2011, 01:47 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| GM | Vice President & CIO | Feb 22, 2012 | Option Exercise | 137,987 |
| GM | Vice President & CIO | Dec 31, 2011 | Option Exercise | 21,867 |
| GM | Vice President & CIO | Nov 14, 2011 | Option Exercise | 71,300 |
| GM | Vice President & CIO | Sep 30, 2011 | Option Exercise | 30,267 |
| GM | Vice President & CIO | Jun 30, 2011 | Option Exercise | 43,518 |
| GM | Vice President & CIO | Mar 31, 2011 | Option Exercise | 98,782 |
| GM | Vice President & CIO | Mar 31, 2011 | Option Exercise | 46,670 |
| GM | Vice President & CIO | Dec 31, 2010 | Option Exercise | 32,468 |
| GM | Vice President & CIO | Dec 31, 2010 | Option Exercise | 18,495 |