Looking at Annexon, Inc.'s (NASDAQ:ANNX ) insider transactions over the last year, we can see that insiders were net buyers. That is, there were more number of shares purchased by insiders than there were sold.

While insider transactions are not the most important thing when it comes to long-term investing, we would consider it foolish to ignore insider transactions altogether.

See our latest analysis for Annexon

Annexon Insider Transactions Over The Last Year

Over the last year, we can see that the biggest insider purchase was by Independent Director Muneer Satter for US$1.0m worth of shares, at about US$2.88 per share. Even though the purchase was made at a significantly lower price than the recent price (US$5.97), we still think insider buying is a positive. While it does suggest insiders consider the stock undervalued at lower prices, this transaction doesn't tell us much about what they think of current prices.

You can see the insider transactions (by companies and individuals) over the last year depicted in the chart below. If you want to know exactly who sold, for how much, and when, simply click on the graph below!

There are always plenty of stocks that insiders are buying. If investing in lesser known companies is your style, you could take a look at this free list of companies. (Hint: insiders have been buying them).

Insiders At Annexon Have Sold Stock Recently

Over the last three months, we've seen a bit of insider selling at Annexon. Insiders sold just US$18k worth of shares in that time. Neither the lack of buying nor the presence of selling is heartening. But the amount sold isn't enough for us to put any weight on it.

Insider Ownership Of Annexon

For a common shareholder, it is worth checking how many shares are held by company insiders. I reckon it's a good sign if insiders own a significant number of shares in the company. Our data indicates that Annexon insiders own about US$7.4m worth of shares (which is 1.1% of the company). Whilst better than nothing, we're not overly impressed by these holdings.

So What Does This Data Suggest About Annexon Insiders?

While there has not been any insider buying in the last three months, there has been selling. But given the selling was modest, we're not worried. However, our analysis of transactions over the last year is heartening. While we have no worries about the insider transactions, we'd be more comfortable if they owned more Annexon stock. While it's good to be aware of what's going on with the insider's ownership and transactions, we make sure to also consider what risks are facing a stock before making any investment decision. Case in point: We've spotted 4 warning signs for Annexon you should be aware of, and 2 of them are potentially serious.