alt Hacker News> They have to explain what they are doing.
They really don't. A public company doesn't even have to provide forward-looking earnings guidance, though many choose to do so for strategic reasons. The only reason to make announcements is if there's some strategic benefit to doing so.
Well, yes, but wouldn't this fall under Regulation S-K, Item 303? They don't have to provide forward revenue guidance, but if they're exiting a line of business don't they have to disclose future trends and risks leading to that decision in their 10Q/10K?