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 Dow Down0.10% Nasdaq Up0.23%

Biogen Idec Inc. (BIIB)

-NasdaqGS
290.54 0.94(0.32%) Apr 17, 4:00PM EDT
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Major HoldersGet Major Holders for:
Breakdown
% of Shares Held by All Insider and 5% Owners:0%
% of Shares Held by Institutional & Mutual Fund Owners:95%
% of Float Held by Institutional & Mutual Fund Owners:95%
Number of Institutions Holding Shares:678

Major Direct Holders (Forms 3 & 4)
HolderSharesReported
SCANGOS GEORGE A26,142Apr 1, 2014
COX JOHN25,478Feb 23, 2014
ALEXANDER SUSAN H22,127Feb 23, 2014
YOUNG WILLIAM18,509Jan 8, 2014
CLANCY PAUL J15,455Feb 23, 2014


Top Institutional Holders
HolderShares% OutValue*Reported
Primecap Management Company17,777,6027.524,970,084,191Dec 31, 2013
Price (T.Rowe) Associates Inc11,651,1384.933,257,308,650Dec 31, 2013
Vanguard Group, Inc. (The)11,623,6534.923,249,624,669Dec 31, 2013
State Street Corporation10,154,2824.302,838,832,618Dec 31, 2013
Capital Research Global Investors9,157,0003.872,560,022,490Dec 31, 2013
ClearBridge Investments, LLC8,204,3333.472,293,685,376Dec 31, 2013
JP Morgan Chase & Company6,873,2532.911,921,555,341Dec 31, 2013
Jennison Associates LLC6,505,8312.751,818,835,172Dec 31, 2013
BlackRock Institutional Trust Company, N.A.6,092,1412.581,703,179,859Dec 31, 2013
FMR, LLC24,041,51510.176,721,286,348Dec 31, 2013

Top Mutual Fund Holders
HolderShares% OutValue*Reported
Vanguard/Primecap Fund10,322,4954.372,885,859,927Dec 31, 2013
Fidelity Contrafund Inc9,095,6513.852,843,664,328Jan 31, 2014
Growth Fund Of America Inc3,675,0001.551,124,072,250Mar 31, 2014
Vanguard Total Stock Market Index Fund3,531,7121.49987,360,723Dec 31, 2013
Legg Mason Clearbridge Aggressive Growth Fd3,292,3041.39920,429,429Dec 31, 2013
Vanguard Horizon Fund-Capital Opportunity Portfolio2,795,4381.18781,520,601Dec 31, 2013
Fidelity Advisor New Insights Fund2,716,1861.15849,188,391Jan 31, 2014
Price (T.Rowe) Growth Stock Fund Inc.2,645,0001.12739,462,650Dec 31, 2013
Amcap Fund2,633,4001.11805,478,058Mar 31, 2014
Powershares Exhg Traded Fd Tr-Powershares QQQ Tr, Series 12,584,5641.09790,540,590Mar 31, 2014

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Value shown is computed using the security's price on the report date given.

Currency in USD.