This causes some founder/ceo/early teams to appear over represented: Sergey Brin, Larry Page & Zuck, while others appear under represented.
I can't help but feel that these flaws make the final assessments tilted toward the point of the article which appears to be something along the line of `owning 11% at IPO is totally normal, don't sweat it`. This is VC content marketing through and through. Additional note: "That means smaller investors and employees owned 27% of these businesses at IPO." The idea that employee pools make up a sizable chunk of most of these companies is completely laughable.