Rule 506(c) allows companies to raise an unlimited amount of money from accredited investors; unlike under Rule 506(b), the securities offered by a company relying on Rule 506(c) may not be sold to any investor that is not accredited.
A stealth startup is a company that operates in "stealth mode" i.e actively hiding its activities. Coda, Instabase, Clinkle, Theranos were all stealth once - with various degrees of success. Is stealth a smart move or a smokescreen? In this article, we break down the pros and cons of stealth mode for tech founders.