Novartis AG — Director's Dealing 2011

Nov 22, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDENIX PHARMACEUTICALS INC (IDIX)
CIK: 0001093649
Period of Report: 2011-11-22

Reporting Person: NOVARTIS AG (Indirect 10% Owner)
Reporting Person: NOVARTIS PHARMA AG (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-11-22	Common Stock	P	11236	$2.41	Acquired	33196427	Indirect
2011-11-22	Common Stock	P	6476	$2.95	Acquired	33202903	Indirect
2011-11-22	Common Stock	P	1146	$3.17	Acquired	33204049	Indirect
2011-11-22	Common Stock	P	140	$3.79	Acquired	33204189	Indirect
2011-11-22	Common Stock	P	20228	$4.70	Acquired	33224477	Indirect
2011-11-22	Common Stock	P	2107	$5.11	Acquired	33226584	Indirect
2011-11-22	Common Stock	P	9197	$5.46	Acquired	33235781	Indirect

Footnotes

F1: These securities are owned directly by Novartis Pharma AG, a direct, wholly-owned subsidiary of Novartis AG. Novartis AG is an indirect beneficial owner of these securities. See attachment.