Corp Finance Question

SS11 R48 pg 86 of Schweser…and I quote: “Different Classes of Common Equity … When looking at a firm’s ownership structure, examine whether: … -The firm was recently privatized by a government entity and the selling entity retained voting rights. This may prevent shareholders from receiving full value for their shares.” Question: What are they talking about here? Will reproduce more of the text (where the …'s are) if need be. I have no idea and appreciate all insight into how this relates to LOS.48.g Thanks