The article talks about three companies that are not very expensive (called penny stocks) which some important people who work there (insiders) are buying. This means they think the company will do well in the future and want to make more money from it. Investors like to buy these stocks when they see insiders doing this because they think it is a good sign. The article also mentions that a big list of companies called the Dow Jones index went up a little bit on Thursday. Read from source...

1. The title is misleading and sensationalized, as it implies that insiders are only buying three penny stocks, while the article does not provide any evidence or data to support this claim.
2. The introduction states that the Dow Jones index closed higher by around 0.1% on Tuesday, but this information is irrelevant and outdated for readers who want to learn about insider trading activities and penny stocks.
3. The article does not disclose any sources or references for its claims or data, which makes it unreliable and questionable.
4. The article uses vague and subjective terms such as "confidence" and "concern" to describe insiders' actions, without providing any clear or objective criteria for these judgments.
5. The article does not explain why investors and traders should be interested in penny stocks, or what benefits they offer compared to other types of securities. It also does not address the potential risks and drawbacks of investing in penny stocks.
6. The article ends abruptly without providing any conclusions or recommendations for readers who want to follow insiders' trades or invest in penny stocks.