This is not true. They've invested in private companies for some time now.
http://www.wsj.com/articles/fidelity-marks-down-startups-inc...
To be fair to you it is a new development.
As an aside, just checked out your website. You've got a very interesting background!!
A privately owned company (in which I bought my shares of when I left) was purchased via an asset sale and us common stock shareholders got zilch. I am trying to learn if I have any legal standing...
Just based on this (I am not a lawyer or giving financial advice), I'd guess that you can have legal standing to your share, which is probably $0. Investors often have preferred shares, and since it was an asset sale, it doesn't sound like things went well. The shares you bought were holding your place at the very back of the line, and the money ran out long before you. Your shares are probably literally worth $0. Consult a tax attorney or CPA to figure out if you can write off some losses on taxes, maybe?
T. Rowe Price and Fidelity only trade in publicly traded securities.
The amount of information available in publicly filed SEC documents, under normal circumstances, dwarfs what you have access to as a result of your shareholder rights under the Delaware BCL.