Biogen Inc

BIIBNASDAQ
$226.36
-1.17-0.51%
In chiusura: Sep 24, 5:00 PM EST
$227.50
1.140.5%
Post-mercato: 7:59 PM EST

Biogen Ownership & Insider Activity

Biogen (BIIB) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 1.5% of shares outstanding. Institutional investors hold 76.4%. Over the past 90 days, insiders made 1 sale worth $240K.

Shares Outstanding

147.754M

Shares Float

132.539M

Insider Shares Owned

2.250M

Insider % Owned

1.5%

Institutional Shares Held

112.949M

Institutional % Held

76.4%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

0

Sales (90d)

1

$240K total

Net Activity

Net Selling

Net Value (90d)

-$240K

Biogen Insider Transactions (Last 6 Months)

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DateInsiderTitleTypeSharesPriceValue
Aug 3, 2026Dr. MinorDIRECTORSELL1.186K$202.15$240K

Congressional Trading Activity

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DateMemberPartyChamberActionAmount
Aug 18, 2026Kevin HernRHouseSale$1,001 - $15,000
Jun 5, 2026Gilbert Ray CisnerosDHousePurchase$1,001 - $15,000