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Biogen Inc Stock Institutional Ownership and Insider Ownership -
Float Percentage of TSO
Short Interest History (%)
Due to a license agreement change with our data vendor, Short Interest related data is no longer available on GuruFocus’ website, except for certain Australian stocks.
Insider ownership (%)
This is the historical insider ownership of Biogen Inc. It is usually better to buy companies with large insider ownership. The company insiders' interest are more aligned with external shareholders in this case.