While institutions invested in The a2 Milk Company Limited (NZSE:ATM) benefited from last week's 3.7% gain, retail investors stood to gain the most

Simply Wall St

Key Insights

  • a2 Milk's significant retail investors ownership suggests that the key decisions are influenced by shareholders from the larger public
  • 48% of the business is held by the top 25 shareholders
  • Insiders have been buying lately

A look at the shareholders of The a2 Milk Company Limited (NZSE:ATM) can tell us which group is most powerful. And the group that holds the biggest piece of the pie are retail investors with 51% ownership. In other words, the group stands to gain the most (or lose the most) from their investment into the company.

Retail investors gained the most after market cap touched NZ$7.7b last week, while institutions who own 49% also benefitted.

Let's take a closer look to see what the different types of shareholders can tell us about a2 Milk.

Check out our latest analysis for a2 Milk

NZSE:ATM Ownership Breakdown September 3rd 2025

What Does The Institutional Ownership Tell Us About a2 Milk?

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.

We can see that a2 Milk 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 a2 Milk's earnings history below. Of course, the future is what really matters.

NZSE:ATM Earnings and Revenue Growth September 3rd 2025

We note that hedge funds don't have a meaningful investment in a2 Milk. Perpetual Limited is currently the largest shareholder, with 5.5% of shares outstanding. The second and third largest shareholders are Challenger Limited and The Vanguard Group, Inc., with an equal amount of shares to their name at 5.0%.

On studying our ownership data, we found that 25 of the top shareholders collectively own less than 50% of the share register, implying that no single individual has a majority interest.

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 a2 Milk

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.

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 data suggests that insiders own under 1% of The a2 Milk Company Limited in their own names. Keep in mind that it's a big company, and the insiders own NZ$27m worth of shares. The absolute value might be more important than the proportional share. Arguably, recent buying and selling is just as important to consider. You can click here to see if insiders have been buying or selling.

General Public Ownership

The general public, mostly comprising of individual investors, collectively holds 51% of a2 Milk shares. With this amount of ownership, retail investors can collectively play a role in decisions that affect shareholder returns, such as dividend policies and the appointment of directors. They can also exercise the power to vote on acquisitions or mergers that may not improve profitability.

Next Steps:

It's always worth thinking about the different groups who own shares in a company. But to understand a2 Milk better, we need to consider many other factors.

I like to dive deeper into how a company has performed in the past. You can access this interactive graph of past earnings, revenue and cash flow, for free.

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.

Valuation is complex, but we're here to simplify it.

Discover if a2 Milk might be undervalued or overvalued with our detailed analysis, featuring fair value estimates, potential risks, dividends, insider trades, and its financial condition.

Access Free Analysis

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.