Earlier quoted context omitted.
What your point? All of these cases are obvious frauds and the trading profit would be plenty of probable cause to investigate and convict.
They're only "obvious" frauds if I'm sitting here writing a paragraph describing it like one. There is a global feed of press releases that companies release into, and the average HN commenter is incapable of distinguishing frauds from real better than anyone else. The executives that make these press releases use different language that doesn't describe it as fraudulent, and this makes it non-obvious. If the "tradin…
Insider trading isn’t the only potential motive for an action like that. A competitor could pay a mole to help them get ahead by taking down the competition, for example. I’m skeptical that insider trading law plays a significant role in preventing schemes like this from occurring. The entity with the strongest incentive to prevent a company from being sabotaged is the company itself. Insiders can complain to regulators or prosecutors if they think something like this is happening, and that’s pretty much the only way they’d find out.