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XenoPort Inc (XNPT)Ownership Data

Short Interest History (%)

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

Institutional Ownership History (%)

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

Insider ownership (%)

This is the historical insider ownership of XenoPort 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
Report Date
Dr. Ronald W. Barrett,PhDCEO, Director229,2030.37%2015-01-13
William J. Dower,PhDVP, Discovery Biology201,6290.32%2006-03-15
William G. HarrisSVP, Finance and CFO147,1110.24%2015-01-13
Vincent J. AngottiN/A104,8480.17%2015-01-13
Ms. Gianna M. BoskoSVP, CLO and Secretary92,8370.15%2015-01-13
Dr. Ernest Mario,PhDDirector83,7500.13%2014-05-23
Dr. Pierre V. Tran,M.D.N/A83,3310.13%2005-06-01
Dr. David R. Savello,PhDN/A78,5060.13%2014-01-13
Dr. Paul Goddard,PhDN/A50,831less than 0.1%2005-06-07
Dr. Kenneth C. Cundy,PhDSVP, Preclinical Development43,851less than 0.1%2012-03-12

Top Fund Holders

HolderSharesReport Date% of Shares
% of Total
Assets Managed
Market Value
Wellington Management Company LLP8,709,3022014-09-3013.990.0146,856,000
Baker Bros Advisors LLC6,815,7772014-09-3010.950.4636,669,000
Orbimed Advisors, LLC5,546,1002014-09-308.910.3129,838,000
VA CollegeAmerica Small Cap World4,769,0002014-12-317.660.1841,824,130
Capital World Investors4,769,0002014-09-307.660.0125,657,000
Deerfield Management Co4,438,8822014-09-307.130.8723,881,000
JPM Global Healthcare3,154,1232014-11-305.070.9628,071,695
J P Morgan Asset Management (UK) Ltd2,904,4152014-09-304.670.0315,626,141
Fidelity Management and Research Company2,426,4672014-09-303.900.0013,054,000
BlackRock Fund Advisors2,135,4732014-09-303.430.0011,489,000

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