Exhibit 4
Following is a schedule of sales of the Issuer’s Class A Common Stock by the Reporting Persons that have not previously been reported in this Schedule 13D or Amendment Nos. 1, 2, 3, or 4 thereto. All of these sales were open market transactions on the NASDAQ Global Market.
Date of Sale | Number of Shares Sold | Share Price | ||||||
2/22/2011 | 5,696 | $ | 2.7205 | |||||
2/23/2011 | 6,100 | $ | 2.7008 | |||||
2/24/2011 | 3,016 | $ | 2.7032 | |||||
2/25/2011 | 13,100 | $ | 2.7026 | |||||
2/28/2011 | 400 | $ | 2.7238 | |||||
3/1/2011 | 7,315 | $ | 2.7469 | |||||
3/2/2011 | 2,900 | $ | 2.7798 | |||||
3/3/2011 | 500 | $ | 2.7240 | |||||
3/4/2011 | 2,720 | $ | 2.7277 | |||||
3/7/2011 | 4,800 | $ | 2.7180 | |||||
3/8/2011 | 4,477 | $ | 2.6800 | |||||
3/9/2011 | 9,600 | $ | 2.6157 | |||||
3/10/2011 | 7,300 | $ | 2.5775 | |||||
3/11/2011 | 12,100 | $ | 2.5529 |