Thanks for the link ohiotom. I understand the value of looking at these filings. However, what I don't understand is why their stakes are so small? I own as many shares as some of these companies are buying in at and I am obviously a nobody. What is the purpose of investing less than 100k into a company when your portfolio is billions large? To me, that doesn't necessarily scream validation and confidence in a product. Unless of course, it is typical of investment firms to do this shortly before investing a larger amount. Thoughts?