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Achillion Pharmaceuticals Inc (ACHN)Ownership Data

Short Interest History (%)

This is the historical short interest of Achillion Pharmaceuticals Inc, as measured by the Short Percentage Of Float.

Institutional Ownership History (%)

This the Institutional Ownership History of Achillion Pharmaceuticals IncPeter Lynch prefers to buy companies with low institutional ownership.

Insider ownership (%)

This is the historical insider ownership of Achillion Pharmaceuticals Inc. It is usually better to buy companies with large insider ownership. The company insiders' interest are more aligned with external shareholders in this case.

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Dr. Dennis LiottaDirector100,0000.1%2013-11-22
Nicholas J. Simon,IIIN/A51,515less than 0.1%2012-06-04
Dr. Jason S. Fisherman,M.D.Director40,000less than 0.1%2013-11-18
Kurt C. GravesDirector22,709less than 0.1%2012-06-11
Dr. John C. Pottage,Jr,M.D.SVP and Chief Medical Officer12,500less than 0.1%2006-10-25
Mr. Gary E. FrashierDirector5,000less than 0.1%2014-06-16
Gautam Shah,PhDEVP and Chief Compliance Ofc.3,125less than 0.1%2012-12-31
Mr. Christopher A. WhiteN/A2,242less than 0.1%2006-10-31
Dr. Elizabeth A. Olek, D.O.SVP and CMO2,000less than 0.1%2012-01-10

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Fidelity Management and Research Company10,833,8162014-12-3110.810.00132,714,246
RA Capital Management, LLC6,700,0002014-09-306.687.9066,866,000
Fidelity® Select Biotechnology Portfolio5,848,6002014-11-305.830.7275,271,482
Duke University5,240,8922013-10-315.420.0013,128,434
Vanguard Group, Inc.4,997,8152014-09-304.990.0049,879,000
Capital World Investors4,930,0002014-09-304.920.0149,201,000
Domain Partners VIII, LP4,572,9682014-09-094.680.0052,909,240
Janus Capital Management LLC3,611,9792014-09-303.600.0536,048,000
BlackRock Fund Advisors3,485,1212014-09-303.480.0134,782,000
Camber Capital Management LLC3,250,0002014-09-303.243.0532,435,000

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