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Biogen Inc. (BIIB)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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227.69-3.89 (-1.68%)
At close: 04:00PM EDT
227.99 +0.30 (+0.13%)
After hours: 05:50PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
0.16%% of shares held by all insiders
93.29%% of shares held by institutions
93.44%% of float held by institutions
1,423Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
Vanguard Group Inc16,570,39830 Mar 202411.38%3,772,913,961
Primecap Management Company16,220,71630 Mar 202411.14%3,693,294,865
Blackrock Inc.14,144,98830 Mar 20249.72%3,220,672,352
State Street Corporation6,747,00830 Mar 20244.63%1,536,226,267
T. Rowe Price Investment Management, Inc.5,169,97030 Mar 20243.55%1,177,150,481
Wellington Management Group, LLP5,120,14230 Mar 20243.52%1,165,805,144
JP Morgan Chase & Company4,694,69430 Mar 20243.22%1,068,934,888
Geode Capital Management, LLC3,409,67430 Mar 20242.34%776,348,681
Van Eck Associates Corporation1,737,34030 Mar 20241.19%395,574,948
Morgan Stanley1,701,38330 Mar 20241.17%387,387,899

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard/Primecap Fund9,162,37130 Dec 20236.29%2,086,180,275
Vanguard Total Stock Market Index Fund4,558,38130 Dec 20233.13%1,037,897,781
Vanguard Specialized-Health Care Fund4,558,45330 Jan 20243.13%1,037,914,174
Vanguard 500 Index Fund3,539,20430 Dec 20232.43%805,841,367
Invesco ETF Tr-Invesco QQQ Tr, Series 1 ETF2,730,98430 Mar 20241.88%621,817,753
Price (T.Rowe) Capital Appreciation Fund2,272,29530 Dec 20231.56%517,378,854
Vanguard Horizon Fund-Capital Opportunity Fund2,232,29730 Dec 20231.53%508,271,709
SPDR S&P 500 ETF Trust1,746,66530 Mar 20241.20%397,698,158
Fidelity 500 Index Fund1,751,18930 Mar 20241.20%398,728,227
Vanguard Mid-Cap Index Fund1,623,67130 Dec 20231.12%369,693,653