ORBIMED ADVISORS LLC

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Contact Information ORBIMED ADVISORS LLC
601 LEXINGTON AVENUE
NEW YORK NY 10022
Business Phone: (212) 739-6400

13F Investments by Sector - 09/30/2011

13F Activity for 09/30/2011

^[1]Market Value:

$2,693,953

New Purchases:

18 stocks

Additional Purchases:

37 stocks

Sold out of:

13 stocks

Reduced holdings in:

26 stocks

^[1] - Market Value shown here may differ from what was reported on the actual 13F filing. The market value shown here includes only those securities that the Whalewisdom parsing engine successfully extracted. Value may also be rounded. Please refer to the actual 13F filing for verification.

Top 13F Holdings on 09/30/2011

Stock	% of Portfolio
Pfizer Inc.	5.41%
WellPoint Inc.	4.74%
Allergan Inc.	4.55%
Bristol-Myers Squibb Company	4.17%
Gilead Sciences Inc.	3.69%

View All Holdings

Recent SEC Filings

Schedule 13D/G Summary There have been 2 Schedule 13D/G filing(s) received since 09/30/2011

13F Holdings Comparison

Shares Calls Puts Principal Stock ticker:

*Shares are split adjusted
**CALLS, PUT, and PRN Market Values shown are taken straight from the 13F Filing and may be rounded to the nearest $1,000 (X $1,000). View the actual 13F Filing to confirm.

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13F Filings Available:

2011-09-30 - 13F-HR (Subscription required)
2011-06-30 - 13F-HR/A (Subscription required)
2011-06-30 - 13F-HR (Subscription required)
2011-03-31 - 13F-HR (Subscription required)
2010-12-31 - 13F-HR (Subscription required)
2010-09-30 - 13F-HR (Subscription required)
2010-06-30 - 13F-HR (Subscription required)
2010-03-31 - 13F-HR (Subscription required)
2009-12-31 - 13F-HR (Subscription required)
2009-09-30 - 13F-HR (Subscription required)
2009-06-30 - 13F-HR (Subscription required)
2009-03-31 - 13F-HR/A (Subscription required)
2009-03-31 - 13F-HR (Subscription required)
2008-12-31 - 13F-HR/A (Subscription required)
2008-12-31 - 13F-HR (Subscription required)
2008-09-30 - 13F-HR (Subscription required)
2008-06-30 - 13F-HR (Subscription required)
2008-03-31 - 13F-HR (Subscription required)
2007-12-31 - 13F-HR (Subscription required)
2007-09-30 - 13F-HR (Subscription required)
2007-06-30 - 13F-HR/A (Subscription required)
2007-06-30 - 13F-HR (Subscription required)
2007-03-31 - 13F-HR/A (Subscription required)
2007-03-31 - 13F-HR (Subscription required)
2006-12-31 - 13F-HR (Subscription required)
2006-09-30 - 13F-HR (Subscription required)
2006-06-30 - 13F-HR (Subscription required)
2006-03-31 - 13F-HR (Subscription required)
2005-12-31 - 13F-HR (Subscription required)
2005-09-30 - 13F-HR (Subscription required)
2005-06-30 - 13F-HR (Subscription required)
2005-03-31 - 13F-HR (Subscription required)
2004-12-31 - 13F-HR (Subscription required)
2004-09-30 - 13F-HR/A (Subscription required)
2004-09-30 - 13F-HR (Subscription required)
2004-08-16 - 13F-HR (Subscription required)
2004-03-31 - 13F-HR (Subscription required)
2003-12-31 - 13F-HR (Subscription required)
2003-09-30 - 13F-HR (Subscription required)
2003-06-30 - 13F-HR (Subscription required)
2003-03-31 - 13F-HR (Subscription required)
2002-12-31 - 13F-HR (Subscription required)
2001-12-31 - 13F-HR (Subscription required)
2001-09-30 - 13F-HR (Subscription required)
2001-06-30 - 13F-HR (Subscription required)

	Subject Company	Symbol	Date of Filing	Total Reported Shares Owned	Shares Reported on 13F	Change
SC 13G/A	Affymax, Inc.	AFFY	11/10/2011	3,550,000	3,400,000	Increased position by 150,000
SC 13D/A	PACIRA PHARMACEUTICALS, INC.	PCRX	12/01/2011	2,810,531	2,828,941	Decreased position by -18,410

Transaction Date	Issuer	Owner	Shares Purchased/Sold	Edgar filing
2011-10-31	PACIRA PHARMACEUTICALS, INC.	ORBIMED ADVISORS LLC	97,441	View Filing
2011-11-11	ANTHERA PHARMACEUTICALS INC	ORBIMED ADVISORS LLC	5,000	View Filing
2011-11-14	ANTHERA PHARMACEUTICALS INC	ORBIMED ADVISORS LLC	5,000	View Filing
2011-11-15	ANTHERA PHARMACEUTICALS INC	ORBIMED ADVISORS LLC	50,000	View Filing
2011-11-16	ANTHERA PHARMACEUTICALS INC	ORBIMED ADVISORS LLC	25,000	View Filing
2011-11-17	ANTHERA PHARMACEUTICALS INC	ORBIMED ADVISORS LLC	24,000	View Filing
2011-11-18	ANTHERA PHARMACEUTICALS INC	ORBIMED ADVISORS LLC	3,000	View Filing
2011-12-09	ANTHERA PHARMACEUTICALS INC	ORBIMED ADVISORS LLC	40,000	View Filing
2011-12-13	ANTHERA PHARMACEUTICALS INC	ORBIMED ADVISORS LLC	16,200	View Filing
2012-02-01	PACIRA PHARMACEUTICALS, INC.	ORBIMED ADVISORS LLC	70,000	View Filing
2012-02-02	PACIRA PHARMACEUTICALS, INC.	ORBIMED ADVISORS LLC	23,300	View Filing
2012-02-03	PACIRA PHARMACEUTICALS, INC.	ORBIMED ADVISORS LLC	50,000	View Filing

ORBIMED ADVISORS LLC

Schedule 13D and 13G filings submitted since 09/30/2011