LABCORP HOLDINGS INC. — Director's Dealing 2013

May 30, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LABORATORY CORP OF AMERICA HOLDINGS (LH)
CIK: 0000920148
Period of Report: 2013-05-28

Reporting Person: Brecher Mark E (Chief Medical Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-28	Common Stock	M	14900	$70.15	Acquired	24652.8891	Direct
2013-05-28	Common Stock	S	16900	$100.92	Disposed	7752.8891	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-28	Non-qualified Stock Options	$70.15	M	14900	Disposed	2020-02-09	Common Stock (14900)	Direct

Footnotes

F1: Pursuant to a plan in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934.

F2: Amount includes 229.882 shares acquired on June 30, 2012 under the Laboratory Corporation of America Holdings 1997 Employee Stock Purchase Plan.

F3: The price of $100.92 per share represents a weighted average of sale prices ranging from $100.48 to $101.12 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.

F4: Employee stock option (right to buy) granted pursuant to the Laboratory Corporation of America Holdings 2008 Stock Incentive Plan.

F5: The option vested in three equal annual installments beginning on the date reflected in this column.