Stock Analysis

Following a 61% decline over last year, recent gains may please Y-mAbs Therapeutics, Inc. (NASDAQ:YMAB) institutional owners

NasdaqGS:YMAB
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Key Insights

  • Institutions' substantial holdings in Y-mAbs Therapeutics implies that they have significant influence over the company's share price
  • 50% of the business is held by the top 7 shareholders
  • Using data from analyst forecasts alongside ownership research, one can better assess the future performance of a company

Every investor in Y-mAbs Therapeutics, Inc. (NASDAQ:YMAB) should be aware of the most powerful shareholder groups. The group holding the most number of shares in the company, around 42% to be precise, is institutions. In other words, the group stands to gain the most (or lose the most) from their investment into the company.

After a year of 61% losses, last week’s 11% gain would be welcomed by institutional investors as a possible sign that returns might start trending higher.

In the chart below, we zoom in on the different ownership groups of Y-mAbs Therapeutics.

See our latest analysis for Y-mAbs Therapeutics

ownership-breakdown
NasdaqGS:YMAB Ownership Breakdown July 24th 2025

What Does The Institutional Ownership Tell Us About Y-mAbs Therapeutics?

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 Y-mAbs Therapeutics does have institutional investors; and they hold a good portion of the company's stock. 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 Y-mAbs Therapeutics' earnings history below. Of course, the future is what really matters.

earnings-and-revenue-growth
NasdaqGS:YMAB Earnings and Revenue Growth July 24th 2025

It looks like hedge funds own 15% of Y-mAbs Therapeutics shares. That worth noting, since hedge funds are often quite active investors, who may try to influence management. Many want to see value creation (and a higher share price) in the short term or medium term. Looking at our data, we can see that the largest shareholder is Wg Biotech Aps with 10% of shares outstanding. For context, the second largest shareholder holds about 9.4% of the shares outstanding, followed by an ownership of 7.3% by the third-largest shareholder.

We did some more digging and found that 7 of the top shareholders account for roughly 50% of the register, implying that along with larger shareholders, there are a few smaller shareholders, thereby balancing out each others interests somewhat.

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. 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 Y-mAbs Therapeutics

While the precise definition of an insider can be subjective, almost everyone considers board members to be insiders. 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.

Shareholders would probably be interested to learn that insiders own shares in Y-mAbs Therapeutics, Inc.. It has a market capitalization of just US$200m, and insiders have US$3.5m worth of shares, in their own names. It is good to see some investment by insiders, but we usually like to see higher insider holdings. It might be worth checking if those insiders have been buying.

General Public Ownership

The general public-- including retail investors -- own 17% stake in the company, and hence can't easily be ignored. 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.

Private Equity Ownership

With a stake of 14%, private equity firms could influence the Y-mAbs Therapeutics board. Sometimes we see private equity stick around for the long term, but generally speaking they have a shorter investment horizon and -- as the name suggests -- don't invest in public companies much. After some time they may look to sell and redeploy capital elsewhere.

Private Company Ownership

We can see that Private Companies own 10%, of the shares on issue. It's hard to draw any conclusions from this fact alone, so its worth looking into who owns those private companies. Sometimes insiders or other related parties have an interest in shares in a public company through a separate private company.

Next Steps:

While it is well worth considering the different groups that own a company, there are other factors that are even more important. Consider for instance, the ever-present spectre of investment risk. We've identified 2 warning signs with Y-mAbs Therapeutics (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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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 NasdaqGS:YMAB

Y-mAbs Therapeutics

A commercial-stage biopharmaceutical company, focuses on the development and commercialization of radioimmunotherapy and antibody based therapeutic products for the treatment of cancer.

Flawless balance sheet and fair value.

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