XFRA:C5S1 CBS Corp Class A Insider Activity 4 Filing - 4/1/2012

Effective Date 4/1/2012

XFRA:C5S1 (CBS Corp Class A): Fair Value Estimate
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XFRA:C5S1 (CBS Corp Class A): Fair Value Uncertainty
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XFRA:C5S1 (CBS Corp Class A): Economic Moat
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XFRA:C5S1 (CBS Corp Class A): Stewardship
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FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Ambrosio Anthony G
  2. Issuer Name and Ticker or Trading Symbol
CBS CORP [CBS, CBS.A]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP, HR & Administration
(Last)
(First)
(Middle)
51 WEST 52ND STREET
3. Date of Earliest Transaction (Month/Day/Year)
04/01/2012
(Street)

NEW YORK, NY 10019
4. If Amendment, Date Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
CBS Class B common stock 04/01/2012   M   323 A $ 0 (1) 81,141(2) D  
CBS Class B common stock 04/01/2012   M   201 A $ 0 (1) 81,342 D  
CBS Class B common stock 04/01/2012   F   244 D $33.91 81,098 D  
CBS Class B common stock               4,650 I By 401(k)
CBS Class B common stock               1.4598 I By Custodian For Child
CBS Class B common stock               31,250 I By Family Trust #1

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Share Units(3) (4) 04/01/2012   M     201 04/01/2010(4)   (4) CBS Class B common stock 201 $ 0 0 D  
Restricted Share Units(3) (5) 04/01/2012   M     323 04/01/2011(5)   (5) CBS Class B common stock 323 $ 0 324 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Ambrosio Anthony G
51 WEST 52ND STREET
NEW YORK, NY 10019
      EVP, HR & Administration  

Signatures

 /s/ Angeline C. Straka, Attorney-in-fact   04/03/2012
** Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) On March 30, 2012, the last preceding business day, the closing price of the CBS Class B common stock on the NYSE was $33.91.
(2) Since his last ownership report, Reporting Person assigned shares of CBS Class B common stock to a family trust
(3) Granted under the Issuer's long term incentive plan.
(4) The Restricted Share Units vest in three equal annual installments beginning on April 1, 2010 and will be settled by delivery of a corresponding number of the Issuer's shares upon vesting.
(5) The Restricted Share Units vest in three equal annual installments beginning on April 1, 2011 and will be settled by delivery of a corresponding number of the Issuer's shares upon vesting.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.

XFRA:C5S1 CBS Corp Class A Insider Activity 4 Filling

CBS Corp Class A XFRA:C5S1 Stock - Get Insider Activity SEC Filing of CBS Corp Class A XFRA:C5S1 stocks, including company profile, shares outstanding, strategy, business segments, operations, officers, consolidated financial statements, financial notes and ownership information.

XFRA:C5S1 CBS Corp Class A Insider Activity 4 Filing - 4/1/2012
Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol |  Title Star Rating |  Category |  Total Assets |  Top Holdings |  Top Sectors |  Symbol |  Name Title |  Date |  Author |  Collection |  Interest |  Popularity Topic |  Sector |  Key Indicators |  User Interest |  Market Cap |  Industry Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol / Ticker |  Title Star Rating |  Category |  Total Assets |  Symbol / Ticker |  Name Title |  Date |  Author |  Collection |  Popularity |  Interest Title |  Date |  Company |  Symbol |  Interest |  Popularity Topic |  Sector |  Key Indicators |  User Interest |  Market Cap |  Industry Title |  Date |  Company |  Symbol |  Interest |  Popularity

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