Key Insights

• Given the large stake in the stock by institutions, Marathon Petroleum's stock price might be vulnerable to their trading decisions

• The top 25 shareholders own 50% of the company

• Using data from analyst forecasts alongside ownership research, one can better assess the future performance of a company

Every investor in Marathon Petroleum Corporation (NYSE:MPC) should be aware of the most powerful shareholder groups. The group holding the most number of shares in the company, around 76% to be precise, is institutions. That is, the group stands to benefit the most if the stock rises (or lose the most if there is a downturn).

Given the vast amount of money and research capacities at their disposal, institutional ownership tends to carry a lot 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 take a closer look to see what the different types of shareholders can tell us about Marathon Petroleum.

See our latest analysis for Marathon Petroleum

What Does The Institutional Ownership Tell Us About Marathon Petroleum?

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.

Marathon Petroleum already has institutions on the share registry. Indeed, they own a respectable stake in the company. This can indicate that the company has a certain degree of credibility in the investment community. However, it is best to be wary of relying on the supposed validation that comes with institutional investors. They too, get it wrong sometimes. 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 Marathon Petroleum's earnings history below. Of course, the future is what really matters.

Institutional investors own over 50% of the company, so together than can probably strongly influence board decisions. We note that hedge funds don't have a meaningful investment in Marathon Petroleum. The Vanguard Group, Inc. is currently the company's largest shareholder with 10% of shares outstanding. With 8.4% and 7.1% of the shares outstanding respectively, BlackRock, Inc. and State Street Global Advisors, Inc. are the second and third largest shareholders.

A deeper look at our ownership data shows that the top 25 shareholders collectively hold less than half of the register, suggesting a large group of small holders where no single shareholder has a majority.

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. Quite a few analysts cover the stock, so you could look into forecast growth quite easily.

Insider Ownership Of Marathon Petroleum

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.

Insider ownership is positive when it signals leadership are thinking like the true owners of the company. However, high insider ownership can also give immense power to a small group within the company. This can be negative in some circumstances.

Our most recent data indicates that insiders own less than 1% of Marathon Petroleum Corporation. As it is a large company, we'd only expect insiders to own a small percentage of it. But it's worth noting that they own US$106m worth of shares. In this sort of situation, it can be more interesting to see if those insiders have been buying or selling.

General Public Ownership

The general public, who are usually individual investors, hold a 23% stake in Marathon Petroleum. 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.

Next Steps:

It's always worth thinking about the different groups who own shares in a company. But to understand Marathon Petroleum better, we need to consider many other factors. Consider for instance, the ever-present spectre of investment risk. We've identified 3 warning signs with Marathon Petroleum (at least 1 which is a bit concerning) , and understanding them should be part of your investment process.

But ultimately it is the future, not the past, that will determine how well the owners of this business will do. Therefore we think it advisable to take a look at this free report showing whether analysts are predicting a brighter future.

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.