Anyone interested in Star Bulk Carriers Corp. (NASDAQ:SBLK) should probably be aware that the Chief Strategy Officer, Charis Plakantonaki, recently divested US$313k worth of shares in the company, at an average price of US$28.95 each. That sale was 14% of their holding, so it does make us raise an eyebrow.

The Last 12 Months Of Insider Transactions At Star Bulk Carriers

Over the last year, we can see that the biggest insider sale was by the Independent Director, Nikolaos Karellis, for US$539k worth of shares, at about US$26.96 per share. That means that even when the share price was below the current price of US$30.17, an insider wanted to cash in some shares. 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. However, while insider selling is sometimes discouraging, it’s only a weak signal. We note that the biggest single sale was 100% of Nikolaos Karellis’s holding.

Star Bulk Carriers insiders didn’t buy any shares over the last year. The chart below shows insider transactions (by companies and individuals) over the last year. By clicking on the graph below, you can see the precise details of each insider transaction!

View our latest analysis for Star Bulk Carriers

insider-trading-volume
NasdaqGS:SBLK Insider Trading Volume August 20th 2026

I will like Star Bulk Carriers better if I see some big insider buys. While we wait, check out this free list of undervalued and small cap stocks with considerable, recent, insider buying.

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Insider Ownership Of Star Bulk Carriers

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. Star Bulk Carriers insiders own about US$684m worth of shares (which is 20% 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 Star Bulk Carriers Insiders?

Insiders sold stock recently, but they haven’t been buying. And there weren’t any purchases to give us comfort, over the last year. On the plus side, Star Bulk Carriers makes money, and is growing profits. It is good to see high insider ownership, but the insider selling leaves us cautious. So these insider transactions can help us build a thesis about the stock, but it’s also worthwhile knowing the risks facing this company. In terms of investment risks, we’ve identified 2 warning signs with Star Bulk Carriers and understanding them should be part of your investment process.

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.


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