Every investor in Biogen Inc. (NASDAQ:BIIB) should be aware of the most powerful shareholder groups. And the group that holds the biggest piece of the pie are institutions with 90% ownership. Put another way, the group faces the maximum upside potential (or downside risk).
Because institutional owners have a huge pool of resources and liquidity, their investing decisions tend to carry a great deal of weight, especially with individual investors. As a result, a sizeable amount of institutional money invested in a firm is generally viewed as a positive attribute.
Let's delve deeper into each type of owner of Biogen, beginning with the chart below.
What Does The Institutional Ownership Tell Us About Biogen?
Institutions typically measure themselves against a benchmark when reporting to their own investors, so they often become more enthusiastic about a stock once it's included in a major index. We would expect most companies to have some institutions on the register, especially if they are growing.
As you can see, institutional investors have a fair amount of stake in Biogen. This suggests some credibility amongst professional investors. But we can't rely on that fact alone since institutions make bad investments sometimes, just like everyone does. If multiple institutions change their view on a stock at the same time, you could see the share price drop fast. It's therefore worth looking at Biogen's earnings history below. Of course, the future is what really matters.
NasdaqGS:BIIB Earnings and Revenue Growth April 30th 2025
Institutional investors own over 50% of the company, so together than can probably strongly influence board decisions. Biogen is not owned by hedge funds. The Vanguard Group, Inc. is currently the largest shareholder, with 11% of shares outstanding. PRIMECAP Management Company is the second largest shareholder owning 11% of common stock, and BlackRock, Inc. holds about 8.5% of the company stock.
We did some more digging and found that 10 of the top shareholders account for roughly 51% of the register, implying that along with larger shareholders, there are a few smaller shareholders, thereby balancing out each others interests somewhat.
While it makes sense to study institutional ownership data for a company, it also makes sense to study analyst sentiments to know which way the wind is blowing. There are plenty of analysts covering the stock, so it might be worth seeing what they are forecasting, too.
Insider Ownership Of Biogen
The definition of company insiders can be subjective and does vary between jurisdictions. Our data reflects individual insiders, capturing board members at the very least. The company management answer to the board and the latter should represent the interests of shareholders. Notably, sometimes top-level managers are on the board themselves.
I generally consider insider ownership to be a good thing. However, on some occasions it makes it more difficult for other shareholders to hold the board accountable for decisions.
Our information suggests that Biogen Inc. insiders own under 1% of the company. It is a very large company, so it would be surprising to see insiders own a large proportion of the company. Though their holding amounts to less than 1%, we can see that board members collectively own US$28m worth of shares (at current prices). It is always good to see at least some insider ownership, but it might be worth checking if those insiders have been selling.
General Public Ownership
The general public-- including retail investors -- own 10% stake in the company, and hence can't easily be ignored. While this group can't necessarily call the shots, it can certainly have a real influence on how the company is run.
Next Steps:
It's always worth thinking about the different groups who own shares in a company. But to understand Biogen better, we need to consider many other factors. For example, we've discovered 1 warning sign for Biogen that you should be aware of before investing here.
NB: Figures in this article are calculated using data from the last twelve months, which refer to the 12-month period ending on the last date of the month the financial statement is dated. This may not be consistent with full year annual report figures.
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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.
