Exhibit 10.2

QUEST DIAGNOSTICS INCORPORATED
Three Giralda Farms
Madison, New Jersey

January 31, 2011

Mr. Peter K. Hopkins
GlaxoSmithKline plc.
via Email

Dear Mr. Hopkins:

We understand you intend to sell approximately 30.8 million shares of your Quest
Diagnostics Incorporated common stock. As discussed, we are willing to
facilitate an orderly sale by purchasing a portion of these shares from you
directly. Specifically, we are prepared to purchase 15,377,551 shares from you
on the terms outlined in the attached term sheet.

Sincerely,

/s/ Michael G. Lukas

Michael G. Lukas
Vice President, Finance

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AGREED AND ACCEPTED

GLAXOSMITHKLINE PLC

/s/ P.K. Hopkins

Name: P.K. Hopkins
Title: Authorized Signatory

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Summary of Terms

 

 

Securities

Quest Diagnostics Incorporated common stock (the “Common Stock”)

 

 

Seller

SB Holdings Capital Inc.

 

 

Buyer

Quest Diagnostics Incorporated

 

 

Number of Shares

15,377,551 shares

 

 

Price per Share

$54.30

 

 

Trade Date

January 31, 2011

 

 

Settlement Date

February 4, 2011

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