Transaction Details

Footnotes

Shares acquired by Reporting Person through the Issuer's 2009 Employee Stock Purchase Plan on the most recent semi-annual purchase date in a transaction exempt under both Rule 166-3(c) and Rule 16-3(d). | Reflects the grant of restricted stock units (RSUs) that will entitle Reporting Person to receive one (1) share of common stock per RSU. One-third of the RSUs will vest on each of the first three anniversaries of the date of grant, and will be settled pursuant to the terms of the Issuer's 2009 Stock Incentive Plan (as amended from time to time). | Represents shares withheld to pay taxes upon the vesting of a previously reported equity award.