Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenue:
Net product sales	$ 1,154,328	$ 823,097	$ 2,237,937	$ 1,582,508
Collaborative agreements and other revenue	3,399	2,544	12,702	4,924
Royalty revenue	25,428	27,051	57,797	56,514
Total revenue	1,183,155	852,692	2,308,436	1,643,946
Expenses:
Cost of goods sold (excluding amortization of acquired intangible assets)	126,443	67,993	253,711	129,908
Research and development	371,520	342,761	806,998	547,418
Selling, general and administrative	305,643	219,262	607,904	427,241
Amortization of acquired intangible assets	70,087	47,068	139,137	88,661
Acquisition related (gains) charges and restructuring, net	(9,477)	7,836	(106,221)	12,698
Total costs and expenses	864,216	684,920	1,701,529	1,205,926
Operating income	318,939	167,772	606,907	438,020
Other income and expense:
Interest and investment income, net	5,945	10,125	10,467	24,209
Equity in (gains) losses of affiliated companies	(1,251)	103	(695)	(638)
Interest expense	9,418	426	21,168	907
Other income, net	1,694	(5,089)	8,318	(1,323)
Income before income taxes	318,411	172,279	605,219	460,637
Income tax provision	39,203	16,927	70,925	70,843
Net income	279,208	155,352	534,294	389,794
Less: Net loss attributable to non-controlling interest	(190)		(694)
Net income attributable to Celgene	$ 279,398	$ 155,352	$ 534,988	$ 389,794
Net income per share attributable to Celgene:
Basic	$ 0.60	$ 0.34	$ 1.15	$ 0.85
Diluted	$ 0.59	$ 0.33	$ 1.14	$ 0.83
Weighted average shares:
Basic	462,625	460,309	464,300	460,112
Diluted	469,962	467,425	470,958	467,557