Stock Analysis

With 82% ownership, Spirax Group plc (LON:SPX) boasts of strong institutional backing

Key Insights

  • Given the large stake in the stock by institutions, Spirax Group's stock price might be vulnerable to their trading decisions
  • A total of 24 investors have a majority stake in the company with 50% ownership
  • Using data from analyst forecasts alongside ownership research, one can better assess the future performance of a company

To get a sense of who is truly in control of Spirax Group plc (LON:SPX), it is important to understand the ownership structure of the business. And the group that holds the biggest piece of the pie are institutions with 82% 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. Hence, having a considerable amount of institutional money invested in a company is often regarded as a desirable trait.

Let's delve deeper into each type of owner of Spirax Group, beginning with the chart below.

See our latest analysis for Spirax Group

ownership-breakdown
LSE:SPX Ownership Breakdown December 10th 2025

What Does The Institutional Ownership Tell Us About Spirax Group?

Institutional investors commonly compare their own returns to the returns of a commonly followed index. So they generally do consider buying larger companies that are included in the relevant benchmark index.

We can see that Spirax Group does have institutional investors; and they hold a good portion of the company's stock. 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 Spirax Group's earnings history below. Of course, the future is what really matters.

earnings-and-revenue-growth
LSE:SPX Earnings and Revenue Growth December 10th 2025

Since institutional investors own more than half the issued stock, the board will likely have to pay attention to their preferences. We note that hedge funds don't have a meaningful investment in Spirax Group. The company's largest shareholder is Massachusetts Financial Services Company, with ownership of 5.9%. Meanwhile, the second and third largest shareholders, hold 5.7% and 5.2%, of the shares outstanding, respectively.

After doing some more digging, we found that the top 24 have the combined ownership of 50% in the company, suggesting that no single shareholder has significant control over the company.

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 a reasonable number of analysts covering the stock, so it might be useful to find out their aggregate view on the future.

Insider Ownership Of Spirax Group

The definition of an insider can differ slightly between different countries, but members of the board of directors always count. 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.

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 information suggests that Spirax Group plc insiders own under 1% of the company. It's a big company, so even a small proportional interest can create alignment between the board and shareholders. In this case insiders own UK£2.7m worth of shares. 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, who are usually individual investors, hold a 16% stake in Spirax Group. While this size of ownership may not be enough to sway a policy decision in their favour, they can still make a collective impact on company policies.

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. Be aware that Spirax Group is showing 1 warning sign in our investment analysis , you should know about...

If you would prefer discover what analysts are predicting in terms of future growth, do not miss this free report on analyst forecasts.

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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Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

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.

About LSE:SPX

Spirax Group

Provides thermal energy and fluid technology solutions in Europe, the Middle East, Africa, the Asia Pacific, and the Americas.

Established dividend payer with adequate balance sheet.

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