Both individual investors who control a good portion of The Oncology Institute, Inc. (NASDAQ:TOI) along with institutions must be dismayed after last week's 13% decrease

Simply Wall St

Key Insights

  • The considerable ownership by individual investors in Oncology Institute indicates that they collectively have a greater say in management and business strategy
  • A total of 25 investors have a majority stake in the company with 47% ownership
  • Recent sales by insiders

Every investor in The Oncology Institute, Inc. (NASDAQ:TOI) should be aware of the most powerful shareholder groups. The group holding the most number of shares in the company, around 47% to be precise, is individual investors. Put another way, the group faces the maximum upside potential (or downside risk).

While institutions who own 35% came under pressure after market cap dropped to US$396m last week,individual investors took the most losses.

In the chart below, we zoom in on the different ownership groups of Oncology Institute.

View our latest analysis for Oncology Institute

NasdaqCM:TOI Ownership Breakdown November 6th 2025

What Does The Institutional Ownership Tell Us About Oncology Institute?

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 Oncology Institute. 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. It is not uncommon to see a big share price drop if two large institutional investors try to sell out of a stock at the same time. So it is worth checking the past earnings trajectory of Oncology Institute, (below). Of course, keep in mind that there are other factors to consider, too.

NasdaqCM:TOI Earnings and Revenue Growth November 6th 2025

Oncology Institute is not owned by hedge funds. Our data shows that M33 Growth, LLC is the largest shareholder with 9.1% of shares outstanding. With 4.6% and 4.4% of the shares outstanding respectively, The Vanguard Group, Inc. and Ravi Sarin are the second and third largest shareholders.

Our studies suggest that the top 25 shareholders collectively control less than half of the company's shares, meaning that the company's shares are widely disseminated and there is no dominant shareholder.

Researching institutional ownership is a good way to gauge and filter a stock's expected performance. The same can be achieved by studying analyst sentiments. Quite a few analysts cover the stock, so you could look into forecast growth quite easily.

Insider Ownership Of Oncology Institute

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. Management ultimately answers to the board. However, it is not uncommon for managers to be executive board members, especially if they are a founder or the CEO.

Most consider insider ownership a positive because it can indicate the board is well aligned with other shareholders. However, on some occasions too much power is concentrated within this group.

Our most recent data indicates that insiders own some shares in The Oncology Institute, Inc.. It has a market capitalization of just US$396m, and insiders have US$31m worth of shares, in their own names. This shows at least some alignment. You can click here to see if those insiders have been buying or selling.

General Public Ownership

The general public-- including retail investors -- own 47% stake in the company, and hence can't easily be ignored. This size of ownership, while considerable, may not be enough to change company policy if the decision is not in sync with other large shareholders.

Private Equity Ownership

With a stake of 9.1%, private equity firms could influence the Oncology Institute board. Some investors might be encouraged by this, since private equity are sometimes able to encourage strategies that help the market see the value in the company. Alternatively, those holders might be exiting the investment after taking it public.

Next Steps:

I find it very interesting to look at who exactly owns a company. But to truly gain insight, we need to consider other information, too. Take risks for example - Oncology Institute has 4 warning signs (and 1 which is potentially serious) we think you should know about.

Ultimately the future is most important. You can access this free report on analyst forecasts for the company.

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.