The fact that multiple AECOM (NYSE:ACM) insiders offloaded a considerable amount of shares over the past year could have raised some eyebrows amongst investors. Knowing whether insiders are buying is usually more helpful when evaluating insider transactions, as insider selling can have various explanations. However, if numerous insiders are selling, shareholders should investigate more.

Although we don't think shareholders should simply follow insider transactions, we would consider it foolish to ignore insider transactions altogether.

The Last 12 Months Of Insider Transactions At AECOM

The President, Lara Poloni, made the biggest insider sale in the last 12 months. That single transaction was for US$2.8m worth of shares at a price of US$92.50 each. So it's clear an insider wanted to take some cash off the table, even below the current price of US$110. We generally consider it a negative if insiders have been selling, especially if they did so below the current price, because it implies that they considered a lower price to be reasonable. Please do note, however, that sellers may have a variety of reasons for selling, so we don't know for sure what they think of the stock price. We note that the biggest single sale was only 29% of Lara Poloni's holding.

AECOM insiders didn't buy any shares over the last year. You can see the insider transactions (by companies and individuals) over the last year depicted in the chart below. If you click on the chart, you can see all the individual transactions, including the share price, individual, and the date!

If you like to buy stocks that insiders are buying, rather than selling, then you might just love this free list of companies. (Hint: Most of them are flying under the radar).

Does AECOM Boast High Insider Ownership?

Many investors like to check how much of a company is owned by insiders. I reckon it's a good sign if insiders own a significant number of shares in the company. Insiders own 0.4% of AECOM shares, worth about US$58m. This level of insider ownership is good but just short of being particularly stand-out. It certainly does suggest a reasonable degree of alignment.

What Might The Insider Transactions At AECOM Tell Us?

It doesn't really mean much that no insider has traded AECOM shares in the last quarter. Still, the insider transactions at AECOM in the last 12 months are not very heartening. The modest level of insider ownership is, at least, some comfort. So these insider transactions can help us build a thesis about the stock, but it's also worthwhile knowing the risks facing this company. For example - AECOM has 1 warning sign we think you should be aware of.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of interesting companies.

For the purposes of this article, insiders are those individuals who report their transactions to the relevant regulatory body. We currently account for open market transactions and private dispositions of direct interests only, but not derivative transactions or indirect interests.

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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.