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Biogen (BIIB)
NASDAQ:BIIB
US Market
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Biogen (BIIB) Ownership - Who Owns Biogen?

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4,896 Followers

Biogen (BIIB) Ownership Overview

0.17%32.35%20.25%32.08%15.14%
20.25% Other Institutional Investors
32.08% ETFs
15.14% Public Companies and Individual Investors
The ownership structure of Biogen (BIIB) stock is a mix of institutional, retail, and individual investors. Approximately 84.68% of the company’s stock is owned by Institutional Investors, 0.17% is owned by Insiders, and 15.14% is owned by Public Companies and Individual Investors.
The ownership structure of Biogen (BIIB) stock is a mix of institutional, retail, and individual investors. Approximately 52.60% of the company’s stock is owned by Institutional Investors, 0.17% is owned by Insiders, and 32.08% is owned by Public Companies and Individual Investors.

Recent Insider Trading Activity

Date
Name
Activity
Value
Jul 16, 2025
xxxxxxxxxxxxx
$300105
May 05, 2025
xxxxxxxxxxxxx
$151559
Mar 10, 2025
xxxxxxxxxxxxx
$1314088
Dec 09, 2024
xxxxxxxxxxxxx
$17293

Recent Hedge Fund Trading Activity

Top Shareholders

Holder
# of Shares
Type
% Holding
Value
15,802,122Institution10.78%2,190,174,109
15,744,084Institution10.74%2,182,130,042
14,240,622Institution9.71%1,973,750,209
9,019,851Institution6.15%1,250,151,349
9,009,361Institution6.14%1,248,697,435
6,266,450Institution4.27%868,529,970
6,236,685Institution4.25%864,404,541
4,367,085Institution2.98%605,277,981
2,536,622Institution1.73%351,575,809
2,484,337Institution1.69%344,329,108

Top Mutual Fund Holders

Holder
# of Shares
Type
% Holding
Value
14,240,622Institution9.71%1,973,750,209
9,009,361Institution6.14%1,248,697,435
4,367,085Institution2.98%605,277,981
2,536,622Institution1.73%351,575,809
2,345,677Institution1.60%325,110,832
2,060,829Institution1.41%285,630,899
1,382,946Institution0.94%191,676,316
1,200,000Institution0.82%166,320,000
975,437Institution0.67%135,195,568
782,280Institution0.53%108,424,008

Top ETF Holders

Holder
# of Shares
Type
% Holding
Value
4,612,908Institution3.15%590,452,224
3,627,985Institution2.47%464,382,080
3,268,652Institution2.23%418,387,456
3,034,103Institution2.07%420,526,676
1,761,489Institution1.20%244,142,375
1,757,175Institution1.20%237,113,195
1,757,175Institution1.20%237,113,195
1,298,740Institution0.89%166,238,720
1,147,583Institution0.78%154,854,850
1,054,627Institution0.72%146,171,302

FAQ

Who Owns Biogen (BIIB)?
According to the latest TipRanks data, approximately 20.25% of the company's stock is held by institutional investors, 0.17% is held by insiders, and 15.14% is held by retail investors.
    What percentage of Biogen (BIIB) stock is held by institutional investors?
    According to the latest TipRanks data, approximately 20.25% of Biogen (BIIB) stock is held by institutional investors.
      What percentage of Biogen (BIIB) stock is held by retail investors?
      According to the latest TipRanks data, approximately 15.14% of Biogen (BIIB) stock is held by retail investors.
        Who owns the most shares of Biogen (BIIB)?
        Theofanis Kolokotrones owns the most shares of Biogen (BIIB).
          What is the significance of the ownership structure for a publicly traded company?
          The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.
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