Biogen Inc

BIIBNASDAQ
$212.55
3.401.63%
al cierre: Aug 17, 5:00 PM EST
$212.55
3.401.63%
Premercado: 7:22 AM 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 74.7%. Over the past 90 days, insiders made 1 sale worth $240K.

Shares Outstanding

147.754M

Shares Float

132.539M

Insider Shares Owned

2.252M

Insider % Owned

1.5%

Institutional Shares Held

110.369M

Institutional % Held

74.7%

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)

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

Congressional Trading Activity

DateMemberPartyChamberActionAmount
Jun 5, 2026Gilbert Ray CisnerosDHouseP$1,001 - $15,000
Jun 2, 2026Maria Elvira SalazarRHouseS$15,001 - $50,000