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172.34000 USD
5
2.82%
Last update Apr 6, 3:59 PM EDT
Pre-market
Day range
168.64000
177
Previous close
177.34000
Open
177
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Biogen Inc.
172.34
5
2.82%

Holders

Fund holders

Name Date reported Shares Value % Held
VANGUARD CHESTER FUNDS-Vanguard PRIMECAP Fund Dec 31, 2025 8.4M 1.5B 5.7%
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund Dec 31, 2025 4.6M 820.2M 3.2%
VANGUARD INDEX FUNDS-Vanguard 500 Index Fund Dec 31, 2025 3.7M 656.2M 2.5%
VANGUARD INDEX FUNDS-Vanguard Mid-Cap Index Fund Dec 31, 2025 3.2M 566.3M 2.2%
Fidelity Contrafund Feb 28, 2026 3.1M 542.3M 2.1%
VANGUARD SPECIALIZED FUNDS-Vanguard Health Care Fund Jan 31, 2026 2.9M 516.7M 2.0%
VANGUARD HORIZON FUNDS-Vanguard Capital Opportunity Fund Dec 31, 2025 2.3M 413.7M 1.6%
iShares Trust-iShares Core S&P 500 ETF Jan 31, 2026 1.9M 334.8M 1.3%
Fidelity Concord Street Trust-Fidelity 500 Index Fund Feb 28, 2026 1.9M 331.1M 1.3%
SPDR S&P 500 ETF TRUST-State Street SPDR S&P 500 ETF Trust Jan 31, 2026 1.8M 312.6M 1.2%
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Pre-market

Exchange is currently open for pre-market.
Main market opens in 4 hours 8 minutes

05:21
00:00
09:30
16:00
23:59

Trading Hours (Monday - Friday):

Pre-market
04:00 - 09:30
Main market
09:30 - 16:00
Post-market
16:00 - 20:00
All times are displayed in the America/New_York timezone (EDT, UTC-04:00).