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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

KING DAVID P 		2. Issuer Name and Ticker or Trading Symbol

LABORATORY CORP OF AMERICA HOLDINGS [ LH ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
President & CEO
(Last)          (First)          (Middle)

531 SOUTH SPRING STREET 		3. Date of Earliest Transaction (MM/DD/YYYY)

6/1/2015
(Street)

BURLINGTON, NC 27215
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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
Common Stock   6/1/2015     M (1)    50000   A $80.37   115898.5658   D    
Common Stock   6/1/2015     S (1)    909   D $117.87   (2) 114989.5658   D    
Common Stock   6/1/2015     S (1)    49091   D $118.59   (3) 65898.5658   D    
Common Stock                  31223   I   By grantor retained annuity trust  
Common Stock                  27296   I   By grantor retained annuity trust  

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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
Non-qualified Stock Options   (4) $80.37   6/1/2015     M   (1)       50000    2/20/2008   (5) 2/20/2017   Common Stock   50000   $0   100000   D    

Explanation of Responses:
( 1)  Pursuant to a plan in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934.
( 2)  The price of $117.8687 per share represents a weighted average of sales prices ranging from $117.75 to $117.99 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
( 3)  The price of $118.5882 per share represents a weighted average of sales prices ranging from $118.00 to $118.86 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
( 4)  Employee stock option (right to buy) granted pursuant to the Laboratory Corporation of America Holdings 2000 Stock Incentive Plan.
( 5)  The option vested in three equal annual installments beginning on 02/20/2008 and is now fully exercisable.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
KING DAVID P
531 SOUTH SPRING STREET
BURLINGTON, NC 27215 		X
President & CEO

Signatures
/s/ F. Samuel Eberts III, Attorney-in-Fact for David P. King 6/3/2015
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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.
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