Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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
OMB APPROVAL
OMB Number: 3235-0104
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
  GUERTIN SHAWN M
2. Date of Event Requiring Statement (Month/Day/Year)
02/25/2013
3. Issuer Name and Ticker or Trading Symbol
AETNA INC /PA/ [AET]
(Last)
(First)
(Middle)
AETNA INC., 151 FARMINGTON AVENUE
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. Vice President, CFO
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

HARTFORD, CT 06156
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 3,000
D
 
Common Stock 358.412
I
By 401(k) Plan (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Market Stock Units   (2)   (2) Common Stock 15,693 $ (3) D  
Market Stock Units   (4)   (4) Common Stock 15,051 $ (3) D  
Market Stock Units   (5)   (5) Common Stock 10,991 $ (3) D  
Market Stock Units   (6)   (6) Common Stock 28,421 $ (3) D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
GUERTIN SHAWN M
AETNA INC.
151 FARMINGTON AVENUE
HARTFORD, CT 06156
      Sr. Vice President, CFO  

Signatures

Shawn M. Guertin (by Judith H. Jones, Attorney in Fact) 02/28/2013
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) Represents the pro rata portion of the stock portion of Aetna Common Stock Fund held by reporting person on January 31, 2013. The information is based on information provided by the Plan Trustee as of that date.
(2) Market Stock Units granted on May 10, 2011 under the Aetna Inc. 2010 Stock Incentive Plan, units will vest on March 10, 2013.
(3) Each Market Stock Unit represents a right to receive up to 1.5 shares of Aetna Inc. Common Stock net of taxes. Vesting amount will be determined based on the average closing stock price for the thirty trading days prior to the vest date.
(4) Market Stock Units granted on February 2, 2012 under the Aetna Inc. 2010 Stock Incentive Plan, a portion of the units will vest on February 2, 2014 with the remaining units vesting on February 2, 2015.
(5) Market Stock Units granted on March 12, 2012 under the Aetna Inc. 2010 Stock Incentive Plan, a portion of the units will vest on March 12, 2014 with the remaining units vesting on March 12, 2015.
(6) Market Stock Units granted on February 1, 2013 under the Aetna Inc. 2010 Stock Incentive Plan, units will vest on February 1, 2016.

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.