NASDAQ: BIIB
Biogen Inc Stock Ownership - Who owns Biogen?

Insider buying vs selling

Have Biogen Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Jane GroganHead of Research2025-10-31337$154.27
$51.99kSell
Sean GodboutChief Accounting Officer2025-10-028$155.25
$1.24kSell
Priya SinghalHead of Development2025-09-02517$133.55
$69.05kSell
Priya SinghalHead of Development2025-08-29807$132.22
$106.70kSell
Rachid IzzarHead of Global Product Strat.2025-07-082,223$135.00
$300.11kSell
Priya SinghalHead of Development2025-05-193,806$126.25
$480.51kSell
Caroline DorsaDirector2025-05-021,235$122.72
$151.56kBuy
Adam KeeneyHead of Corporate Development2025-05-01454$120.93
$54.90kSell
Stephen A. SherwinDirector2025-03-078,760$150.02
$1.31MSell
Nicole MurphyHead of Pharm Ops and Tech2025-02-10670$142.54
$95.50kSell

1 of 4

BIIB insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when BIIB insiders and whales buy or sell their stock.

BIIB Shareholders

What type of owners hold Biogen Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Vanguard Group Inc11.79%17,289,235$3.15BInstitution
Primecap Management Co10.19%14,954,697$2.72BInstitution
Blackrock Inc10.06%14,763,952$2.69BInstitution
State Street Corp4.99%7,319,749$1.33BInstitution
Wellington Management Group LLP2.89%4,246,504$772.61MInstitution
Geode Capital Management LLC2.77%4,068,781$740.27MInstitution
Point72 Asset Management LP2.64%3,872,901$704.64MInstitution
Invesco Ltd1.65%2,418,127$439.95MInstitution
Morgan Stanley1.53%2,251,535$409.64MInstitution
Aqr Capital Management LLC1.22%1,783,581$324.50MInstitution

1 of 3

BIIB vs General Drug Manufacturer Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
BIIB88.92%2.13%Net SellingNet Selling
GRFS20.38%0.00%
OGN76.79%0.41%Net SellingNet Buying
AMRN0.96%16.26%Net Selling
SCLX1.39%98.61%Net Buying

Biogen Stock Ownership FAQ

Who owns Biogen?

Biogen (NASDAQ: BIIB) is owned by 88.92% institutional shareholders, 2.13% Biogen insiders, and 8.95% retail investors. Vanguard Group Inc is the largest individual Biogen shareholder, owning 17.29M shares representing 11.79% of the company. Vanguard Group Inc's Biogen shares are currently valued at $3.15B.

If you're new to stock investing, here's how to buy Biogen stock.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.