The fact that multiple Delta Air Lines, Inc. (NYSE:DAL) insiders offloaded a considerable amount of shares over the past year could have raised some eyebrows amongst investors. When evaluating insider transactions, knowing whether insiders are buying is usually more beneficial than knowing whether they are selling, as the latter can be open to many interpretations. However, shareholders should take a deeper look if several insiders are selling stock over a specific time period.

Although we don't think shareholders should simply follow insider transactions, logic dictates you should pay some attention to whether insiders are buying or selling shares.

See our latest analysis for Delta Air Lines

The Last 12 Months Of Insider Transactions At Delta Air Lines

Over the last year, we can see that the biggest insider sale was by the President, Glen Hauenstein, for US$4.9m worth of shares, at about US$49.05 per share. That means that an insider was selling shares at slightly below the current price (US$61.49). As a general rule we consider it to be discouraging when insiders are selling below the current price, because it suggests they were happy with a lower valuation. However, while insider selling is sometimes discouraging, it's only a weak signal. This single sale was just 31% of Glen Hauenstein's stake.

Over the last year we saw more insider selling of Delta Air Lines shares, than buying. You can see a visual depiction of insider transactions (by companies and individuals) over the last 12 months, below. If you click on the chart, you can see all the individual transactions, including the share price, individual, and the date!

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Insiders At Delta Air Lines Have Sold Stock Recently

The last quarter saw substantial insider selling of Delta Air Lines shares. Specifically, insiders ditched US$3.4m worth of shares in that time, and we didn't record any purchases whatsoever. In light of this it's hard to argue that all the insiders think that the shares are a bargain.

Insider Ownership

I like to look at how many shares insiders own in a company, to help inform my view of how aligned they are with insiders. I reckon it's a good sign if insiders own a significant number of shares in the company. It's great to see that Delta Air Lines insiders own 0.4% of the company, worth about US$164m. I like to see this level of insider ownership, because it increases the chances that management are thinking about the best interests of shareholders.

So What Does This Data Suggest About Delta Air Lines Insiders?

Insiders haven't bought Delta Air Lines stock in the last three months, but there was some selling. Despite some insider buying, the longer term picture doesn't make us feel much more positive. 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 2 warning signs for Delta Air Lines you should be aware of.

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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.

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.