| SC 13G/A | 2013-07-10 | BlackRock Inc. | CBS CORP | 27,580,455 | 4.8% | EDGAR |
| SC 13G/A | 2013-02-08 | REDSTONE SUMNER M | CBS CORP | 34,110,939 | 79.0% | EDGAR |
| SC 13G/A | 2013-02-07 | WADDELL & REED FINANCIAL INC | CBS CORP | 38,381,809 | 6.5% | EDGAR |
| SC 13G | 2013-01-30 | BlackRock Inc. | CBS CORP | 31,747,896 | 5.4% | EDGAR |
| SC 13G/A | 2013-01-08 | JPMORGAN CHASE & CO | CBS CORP | 23,201,363 | 3.9% | EDGAR |
| SC 13G/A | 2012-02-14 | REDSTONE SUMNER M | CBS CORP | 34,349,481 | 79.1% | EDGAR |
| SC 13G | 2012-02-14 | WADDELL & REED FINANCIAL INC | CBS CORP | 22,165,952 | 3.7% | EDGAR |
| SC 13G | 2012-01-17 | JPMORGAN CHASE & CO | CBS CORP | 36,266,673 | 5.9% | EDGAR |
| SC 13G | 2011-05-24 | M&G INVESTMENT MANAGEMENT LTD | CBS CORP | 4,309,200 | 4.9% | EDGAR |
| SC 13G | 2011-05-23 | M&G INVESTMENT MANAGEMENT LTD | CBS CORP | 4,309,200 | 4.9% | EDGAR |
| SC 13G | 2011-05-04 | M&G INVESTMENT MANAGEMENT LTD | CBS CORP | 4,736,000 | 5.4% | EDGAR |
| SC 13D/A | 2011-03-15 | GAMCO INVESTORS, INC. ET AL | CBS CORP | 1,768,000 | 4.0% | EDGAR |
| SC 13G/A | 2011-02-15 | REDSTONE SUMNER M | CBS CORP | 0 | 0.0% | EDGAR |
| SC 13G/A | 2011-02-14 | JANUS CAPITAL MANAGEMENT LLC | CBS CORP | 24,340,010 | 3.9% | EDGAR |
| SC 13G/A | 2010-12-09 | AXA FINANCIAL INC | CBS CORP | 2,409,696 | - | EDGAR |
| SC 13D/A | 2010-02-17 | CBS CORP | WESTWOOD ONE INC /DE/ | 80,000 | - | EDGAR |
| SC 13D/A | 2010-02-17 | CBS CORP | WESTWOOD ONE INC /DE/ | 80,000 | - | EDGAR |
| SC 13G | 2010-02-16 | JANUS CAPITAL MANAGEMENT LLC | CBS CORP | 33,501,075 | 5.4% | EDGAR |
| SC 13G/A | 2010-02-12 | AXA FINANCIAL INC | CBS CORP | 65,895,610 | - | EDGAR |
| SC 13G/A | 2010-02-05 | REDSTONE SUMNER M | CBS CORP | 40,993,981 | 79.1% | EDGAR |