LABCORP HOLDINGS INC. — Director's Dealing 2013

May 14, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LABORATORY CORP OF AMERICA HOLDINGS (LH)
CIK: 0000920148
Period of Report: 2013-05-10

Reporting Person: Boyle James T. Jr. (EVP, Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-10	Common Stock	M	10000	$58.57	Acquired	48162	Direct
2013-05-10	Common Stock	M	3334	$47.89	Acquired	51496	Direct
2013-05-10	Common Stock	M	47400	$60.04	Acquired	98896	Direct
2013-05-10	Common Stock	S	68908	$93.8188	Disposed	29988	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-10	Non-qualified Stock Options	$60.04	M	47400	Disposed	2019-02-11	Common Stock (47400)	Direct
2013-05-10	Non-qualified Stock Options	$58.57	M	10000	Disposed	2016-02-23	Common Stock (10000)	Direct
2013-05-10	Non-qualified Stock Options	$47.89	M	3334	Disposed	2015-03-01	Common Stock (3334)	Direct

Footnotes

F1: The price of $93.8188 per share represents a weighted average of sales prices ranging from $93.75 to $93.87 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.

F2: Employee stock option (right to buy) granted pursuant to the Laboratory Corporation of America Holdings 2008 Stock Incentive Plan.

F3: The option vests in three equal annual installments beginning on the date reflected in this column.

F4: Employee stock option (right to buy) granted persuant to the Laboratory Corporation of America Holdings 2000 Stock Incentive Plan.