No, that’s not an FDA requirement. It’s an SEC requirement for 8-K’s. Receiving approval to market a drug from regulatory authorities like the MHRA or the FDA would generally be considered a material event that requires public disclosure under SEC regulations.
You’re going to hear about it. It is going to make news. How it is covered again, is often a function of the fact that typically media will focus on the researchers who did the study and often will at best bury a company name somewhere hard to find in an article. If it is a penny stock, they may not mention the company name at all. However, such rules typically do NOT apply in British press, international press or scientific press, where the name of the sponsor and how to get the drug are actually material information for their doctor / readers.
US press, they are anxious to avoid looking like they are promoting corporate interests. Business press won’t cover it unless there is an angle, like the lawsuit, maybe.