0001193125-06-162164 Sample Contracts

Confirmation of OTC Warrant Transaction
Confirmation of Otc Warrant Transaction • August 4th, 2006 • Gilead Sciences Inc • Biological products, (no disgnostic substances) • New York

This Confirmation evidences a complete binding agreement between you and us as to the terms of the Transaction to which this Confirmation relates. This Confirmation (notwithstanding anything to the contrary herein) shall be subject to an agreement in the 1992 form of the ISDA Master Agreement (Multicurrency Cross Border) (the “Master Agreement”) as if we had executed an agreement in such form (but without any Schedule and with the elections specified in the “ISDA Master Agreement” Section of this Confirmation) on the Trade Date of the Transaction. In the event of any inconsistency between the provisions of that Master Agreement and this Confirmation, this Confirmation will prevail for the purpose of the Transaction. The parties hereby agree that the Transaction evidenced by this Confirmation shall be the only Transaction subject to and governed by the Master Agreement.

Confirmation of OTC Convertible Note Hedge
Confirmation of Otc Convertible Note Hedge • August 4th, 2006 • Gilead Sciences Inc • Biological products, (no disgnostic substances) • New York

This Confirmation evidences a complete binding agreement between you and us as to the terms of the Transaction to which this Confirmation relates. This Confirmation (notwithstanding anything to the contrary herein), shall be subject to an agreement in the 1992 form of the ISDA Master Agreement (Multicurrency Cross Border) (the “Master Agreement”) as if we had executed an agreement in such form (but without any Schedule and with the elections specified in the “ISDA Master Agreement” Section of this Confirmation) on the Trade Date of the Transaction. In the event of any inconsistency between the provisions of that agreement and this Confirmation, this Confirmation will prevail for the purpose of the Transaction. The parties hereby agree that the Transaction evidenced by this Confirmation shall be the only Transaction subject to and governed by the Master Agreement.

GILEAD SCIENCES LIMITED-DEGUSSA EMTRICITABINE MANUFACTURING SUPPLY AGREEMENT
Manufacturing Agreement • August 4th, 2006 • Gilead Sciences Inc • Biological products, (no disgnostic substances) • New York

[ ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY BRACKETS, IS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

STOCK PURCHASE AGREEMENT among DEGUSSA AG, LAPORTE NEDERLAND BV, RAYLO CHEMICALS INC. and GILEAD SCIENCES, INC. dated as of June 6, 2006
Stock Purchase Agreement • August 4th, 2006 • Gilead Sciences Inc • Biological products, (no disgnostic substances) • New York

STOCK PURCHASE AGREEMENT dated as of June 6, 2006 (the “Agreement”), among DEGUSSA AG, a German Aktiengesellschaft (“Degussa”) LAPORTE NEDERLAND BV, a Netherlands limited liability company (“Seller”), RAYLO CHEMICALS INC., an Alberta corporation (the “Company”), and GILEAD SCIENCES, INC., a Delaware corporation (“Purchaser”).