Very helpful answer! Is it correct to say that i

Very helpful answer! Is it correct to say that in case of major appreciation in share price, one might get a measure of control over one’s tax burden, by transferring a portion of the shares to a Retirement Account of some kind?

I has the impression there are certain standards for the type of stocks in those, and may exclude penny stocks. No doubt most on here know more about that then i do. Please feel free to share what you know about this.