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

Insider buying vs selling

Have Biogen Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
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
Priya SinghalHead of Development2025-02-10357$142.54
$50.89kSell
Michael R. McDonnellEVP Chief Financial Officer2025-02-101,371$142.54
$195.42kSell
Nicole MurphyHead of Pharm Ops and Tech2025-02-10670$142.54
$95.50kSell
Rachid IzzarHead of Global Product Strat.2025-02-10445$142.54
$63.43kSell
Susan H. AlexanderEVP Chief Legal Officer2025-02-10807$142.54
$115.03kSell
Robin KramerChief Accounting Officer2025-02-10245$142.54
$34.92kSell

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 Inc11.62%17,032,839$2.23BInstitution
Primecap Management Co10.88%15,943,259$2.08BInstitution
Blackrock Inc10.38%15,211,036$1.99BInstitution
State Street Corp5.05%7,396,910$966.41MInstitution
Wellington Management Group LLP3.19%4,672,437$610.45MInstitution
Geode Capital Management LLC2.63%3,846,864$502.59MInstitution
T Rowe Price Investment Management Inc1.82%2,660,290$347.57MInstitution
Invesco Ltd1.55%2,265,007$295.92MInstitution
Morgan Stanley1.36%1,990,668$260.08MInstitution
D E Shaw Co Inc1.08%1,585,572$207.15MInstitution

1 of 3

BIIB vs General Drug Manufacturer Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
BIIB86.49%2.12%Net SellingNet Selling
GRFS21.15%0.00%
OGN77.54%0.37%Net SellingNet Selling
AMRN16.81%16.54%Net SellingNet Selling
SCLX45.14%54.86%Net Buying

Biogen Stock Ownership FAQ

Who owns Biogen?

Biogen (NASDAQ: BIIB) is owned by 86.49% institutional shareholders, 2.12% Biogen insiders, and 11.39% retail investors. Vanguard Group Inc is the largest individual Biogen shareholder, owning 17.03M shares representing 11.62% of the company. Vanguard Group Inc's Biogen shares are currently valued at $2.23B.

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.