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Biogen Inc. (BIIB)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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221.42+3.91 (+1.80%)
At close: 04:00PM EDT
221.97 +0.55 (+0.25%)
After hours: 04:29PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
0.16%% of shares held by all insiders
93.09%% of shares held by institutions
93.24%% of float held by institutions
1,445Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
Primecap Management Company16,264,48130 Dec 202311.17%3,601,281,353
Vanguard Group Inc14,407,33030 Dec 20239.90%3,190,070,982
Blackrock Inc.14,246,65830 Dec 20239.79%3,154,494,988
State Street Corporation6,945,66530 Dec 20234.77%1,537,909,131
T. Rowe Price Investment Management, Inc.5,357,32630 Dec 20233.68%1,186,219,113
Wellington Management Group, LLP5,324,39630 Dec 20233.66%1,178,927,752
JP Morgan Chase & Company5,011,31930 Dec 20233.44%1,109,606,243
Geode Capital Management, LLC3,309,31730 Dec 20232.27%732,748,964
Invesco Ltd.1,814,66630 Dec 20231.25%401,803,342
Van Eck Associates Corporation1,737,34030 Mar 20241.19%384,681,819

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard/Primecap Fund9,162,37130 Dec 20236.29%2,028,732,170
Vanguard Total Stock Market Index Fund4,558,38130 Dec 20233.13%1,009,316,712
Vanguard Specialized-Health Care Fund4,558,45330 Jan 20243.13%1,009,332,654
Vanguard 500 Index Fund3,539,20430 Dec 20232.43%783,650,543
Invesco ETF Tr-Invesco QQQ Tr, Series 1 ETF2,730,98430 Mar 20241.88%604,694,472
Price (T.Rowe) Capital Appreciation Fund2,272,29530 Dec 20231.56%503,131,554
Vanguard Horizon Fund-Capital Opportunity Fund2,232,29730 Dec 20231.53%494,275,197
SPDR S&P 500 ETF Trust1,746,66530 Mar 20241.20%386,746,561
Fidelity 500 Index Fund1,751,18930 Mar 20241.20%387,748,265
Vanguard Mid-Cap Index Fund1,623,67130 Dec 20231.12%359,513,229