X0306 4 2018-06-18 0000813828 CBS CORP CBS, CBS.A 0001333949 Ianniello Joseph R 51 WEST 52ND STREET NEW YORK NY 10019 1 Chief Operating Officer CBS Class B common stock 2018-06-18 4 S 0 50000.0000 56.4709 D 346057.0000 D CBS Class B common stock 4164.0000 I By 401(k) CBS Class B common stock 2412.0000 I By Spouse - 401(k) Plan The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.31 to $56.605 inclusive. The reporting person undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purposes. /s/ Joseph R. Ianniello 2018-06-20