X0304 4 2012-02-23 0000813828 CBS CORP CBS, CBS.A 0001333949 Ianniello Joseph R 51 WEST 52ND STREET NEW YORK NY 10019 1 EVP and CFO CBS Class B common stock 2012-02-23 4 M 0 34216.0000 0 A 90293.0000 D CBS Class B common stock 2012-02-23 4 M 0 22748.0000 0 A 113041.0000 D CBS Class B common stock 2012-02-23 4 A 0 4848.0000 0.0000 A 117889.0000 D CBS Class B common stock 2012-02-23 4 F 0 31221.0000 29.4400 D 86668.0000 D CBS Class B common stock 4055.0000 I By 401(k) Employee Stock Option (right to buy) 29.4400 2012-02-23 4 A 0 135900.0000 0.0000 A 2013-02-23 2020-02-23 CBS Class B common stock 135900.0000 135900.0000 D Restricted Share Units 2012-02-23 4 M 0 34216.0000 0.0000 D 2011-02-23 CBS Class B common stock 34216.0000 68434.0000 D Restricted Share Units 2012-02-23 4 A 0 49632.0000 0.0000 A 2012-02-23 CBS Class B common stock 49632.0000 90992.0000 D Restricted Share Units 2012-02-23 4 M 0 22748.0000 0.0000 D 2012-02-23 CBS Class B common stock 22748.0000 68244.0000 D Restricted Share Units 2012-02-23 4 A 0 30570.0000 0.0000 A 2013-02-23 CBS Class B common stock 30570.0000 30570.0000 D On February 23, 2012, the closing price of the CBS Class B common stock on the NYSE was $29.44. Acquired in connection with the vesting of performance share units granted on February 28, 2008. Right to buy under Issuer's long term incentive plan. This option vests in four equal installments beginning on February 23, 2013. Granted under the Issuer's long term incentive plan. These Restricted Share Units (RSUs) vest in four equal annual installments and are settled by delivery of a corresponding number of the Issuer's shares upon vesting. On February 23, 2012, the performance target associated with these RSUs was certified as having been achieved. /s/ Joseph R. Ianniello 2012-02-27