Some people who work at big companies sold some of their own company's stock. This means they think the stock is too expensive and they want to make money by selling it when the price goes down. One person sold a lot of Chevron stock and made over a million dollars from it. Another person sold some HCA Healthcare stock. People should not only look at these sales, but also other things, before deciding if they want to buy or sell the same stocks. Read from source...

- The title is misleading and clickbaity, as it implies that insiders are selling all four stocks, while the article only mentions two of them. This creates a false sense of urgency and importance for the reader to click on the link and read the full story.
- The introduction paragraph does not provide any context or background information about why insider sales should matter to investors. It simply states that they are selling, without explaining what it means or how it affects the stock performance or market sentiment.
- The article uses vague and general terms such as "overpriced" and "missing the consensus", without providing any specific data, metrics, or analysis to support these claims. This makes the argument weaker and less convincing for the reader.
- The article does not mention any potential reasons why insiders are selling, such as tax considerations, personal financial goals, diversification strategies, etc. This leaves a gap in the explanation and implies that there is something fundamentally wrong with the stocks or the company's performance.

Given the information provided in the article, I have analyzed the performance and prospects of Chevron and HCA Healthcare. Based on my findings, I suggest the following portfolio allocation for a hypothetical investor: