Owning 39% in Open House Group Co., Ltd. (TSE:3288) means that insiders are heavily invested in the company's future

Simply Wall St · 3d ago

Key Insights

A look at the shareholders of Open House Group Co., Ltd. (TSE:3288) can tell us which group is most powerful. And the group that holds the biggest piece of the pie are individual insiders with 39% ownership. That is, the group stands to benefit the most if the stock rises (or lose the most if there is a downturn).

With such a notable stake in the company, insiders would be highly incentivised to make value accretive decisions.

In the chart below, we zoom in on the different ownership groups of Open House Group.

View our latest analysis for Open House Group

ownership-breakdown
TSE:3288 Ownership Breakdown January 8th 2026

What Does The Institutional Ownership Tell Us About Open House Group?

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 Open House Group. 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. When multiple institutions own a stock, there's always a risk that they are in a 'crowded trade'. When such a trade goes wrong, multiple parties may compete to sell stock fast. This risk is higher in a company without a history of growth. You can see Open House Group's historic earnings and revenue below, but keep in mind there's always more to the story.

earnings-and-revenue-growth
TSE:3288 Earnings and Revenue Growth January 8th 2026

Hedge funds don't have many shares in Open House Group. From our data, we infer that the largest shareholder is Masaaki Arai (who also holds the title of Top Key Executive) with 36% of shares outstanding. Its usually considered a good sign when insiders own a significant number of shares in the company, and in this case, we're glad to see a company insider play the role of a key stakeholder. In comparison, the second and third largest shareholders hold about 14% and 2.7% of the stock. Additionally, the company's CEO Ryosuke Fukuoka directly holds 0.8% of the total shares outstanding.

A more detailed study of the shareholder registry showed us that 3 of the top shareholders have a considerable amount of ownership in the company, via their 52% stake.

While studying institutional ownership for a company can add value to your research, it is also a good practice to research analyst recommendations to get a deeper understand of a stock's expected performance. Quite a few analysts cover the stock, so you could look into forecast growth quite easily.

Insider Ownership Of Open House Group

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. Company management run the business, but the CEO will answer to the board, even if he or she is a member of it.

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.

It seems insiders own a significant proportion of Open House Group Co., Ltd.. It has a market capitalization of just JP¥1.1t, and insiders have JP¥410b worth of shares in their own names. That's quite significant. It is good to see this level of investment. You can check here to see if those insiders have been buying recently.

General Public Ownership

With a 28% ownership, the general public, mostly comprising of individual investors, have some degree of sway over Open House Group. 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 Company Ownership

Our data indicates that Private Companies hold 14%, of the company's shares. It might be worth looking deeper into this. If related parties, such as insiders, have an interest in one of these private companies, that should be disclosed in the annual report. Private companies may also have a strategic interest in the company.

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. For instance, we've identified 1 warning sign for Open House Group that you should be aware of.

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.