BIIB - Hedge Fund Activity | Insider Trading Activity

Biogen Inc

Shareholders of BIIB

Showing popular hedge funds holding BIIB, use filter to see all institutional investors.
Fund/Manager Name % of Portf. Δ % of Portf Shares Owned Calls/Puts Value Owned Trade Value Latest Activity Ownership Net Ownership Fund Rating Average Buy Price Price History Date

Largest Shareholders of BIIB

Fund/Manager Name % of Portf. Δ % of Portf Shares Owned Calls/Puts Value Owned Trade Value Latest Activity Ownership Net Ownership Fund Rating Average Buy Price Price History Date

Largest Buys of BIIB since Q4 2024:


Fund/Manager Name % of Portf. Δ % of Portf Shares Owned Calls/Puts Value Owned Trade Value Latest Activity Ownership Net Ownership Fund Rating Average Buy Price Price History Date

Largest Sells of BIIB since Q4 2024:


Fund/Manager Name % of Portf. Δ % of Portf Shares Owned Calls/Puts Value Owned Trade Value Latest Activity Ownership Net Ownership Fund Rating Average Buy Price Price History Date

Option Holders of BIIB

Fund/Manager Name Type Shares Value Latest Activity Ownership Net Ownership Fund Rating Average Buy Price Date

Buys vs. Sells

Trade Size # of Buys vs. Sells

Ratings of Buyers vs. Sellers

Trade Size Avg Rating of Buyers Avg Rating of Sellers

Buys vs. Sells Chart

Total Shares Bought vs. Total Shares Sold

How funds adjusted positions

# of Institutions Holding BIIB

Total BIIB Shares Owned by Institutions

# of Institutions Holding Call/Put Options

Total Calls/Puts Owned by Institutions

Net Ownership (Shares + Calls - Puts)

Money Flow from other stocks into BIIB

Money Flow from BIIB to other Stocks

Funds that Invest in BIIB also Invest in

Frequently bought with BIIB

Frequently Sold with BIIB

BIIB Institutional Ownership Summary


Institutional Ownership Metric
* "Hedge Funds" includes institutional investors like Warren Buffett, see 13f filings

Average Buy Prices vs. Current Price

Institution Type Funds in Profit vs Funds Underwater

Average Buy Prices Chart

Range of Average Buy Prices

Stake Size 25th Percentile Median 75th Percentile