Over the past year, many M&T Bank Corporation (NYSE:MTB) insiders sold a significant stake in the company which may have piqued investors' interest. Knowing whether insiders are buying is usually more helpful when evaluating insider transactions, as insider selling can have various explanations. However, when multiple insiders sell stock over a specific duration, shareholders should take notice as that could possibly be a red flag.

While we would never suggest that investors should base their decisions solely on what the directors of a company have been doing, logic dictates you should pay some attention to whether insiders are buying or selling shares.

View our latest analysis for M&T Bank

The Last 12 Months Of Insider Transactions At M&T Bank

The Chairman & CEO, Rene Jones, made the biggest insider sale in the last 12 months. That single transaction was for US$4.5m worth of shares at a price of US$194 each. So what is clear is that an insider saw fit to sell at around the current price of US$188. We generally don't like to see insider selling, but the lower the sale price, the more it concerns us. In this case, the big sale took place at around the current price, so it's not too bad (but it's still not a positive).

Insiders in M&T Bank didn't buy any shares in the last year. You can see a visual depiction of insider transactions (by companies and individuals) over the last 12 months, below. By clicking on the graph below, you can see the precise details of each insider transaction!

If you are like me, then you will not want to miss this free list of small cap stocks that are not only being bought by insiders but also have attractive valuations.

Insiders At M&T Bank Have Sold Stock Recently

Over the last three months, we've seen significant insider selling at M&T Bank. In total, insiders dumped US$22m worth of shares in that time, and we didn't record any purchases whatsoever. Overall this makes us a bit cautious, but it's not the be all and end all.

Insider Ownership

For a common shareholder, it is worth checking how many shares are held by company insiders. Usually, the higher the insider ownership, the more likely it is that insiders will be incentivised to build the company for the long term. M&T Bank insiders own about US$134m worth of shares (which is 0.4% of the company). Most shareholders would be happy to see this sort of insider ownership, since it suggests that management incentives are well aligned with other shareholders.

So What Does This Data Suggest About M&T Bank Insiders?

Insiders haven't bought M&T Bank stock in the last three months, but there was some selling. Looking to the last twelve months, our data doesn't show any insider buying. While insiders do own a lot of shares in the company (which is good), our analysis of their transactions doesn't make us feel confident about the company. So while it's helpful to know what insiders are doing in terms of buying or selling, it's also helpful to know the risks that a particular company is facing. Case in point: We've spotted 1 warning sign for M&T Bank you should be aware of.

Of course M&T Bank may not be the best stock to buy. So you may wish to see this free collection of high quality 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.