In Stratasys' (SSYS 1.81%) 424B5 filing, the company states that it is offering an additional 4 million shares of common stock, but reading the fine print reveals that the number is much higher all included. Is this share dilution something investors need to be concerned about? In this video, Motley Fool industrials analyst Blake Bos takes a look at Stratasys' secondary offering, tells investors why dilution is often a risk with companies at this stage in their business, and offers a good look at how much Stratasys will need to grow to compensate for this dilution.