Supermicro Announces Suspension of Trading of Common Stock on Nasdaq
ir.supermicro.com
ir.supermicro.com
https://www.servethehome.com/supermicro-at-risk-of-delisting...
The laws vary a lot by jurisdiction, but in Europe, the relevant regulations arise from the EU Market Abuse Directive https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CEL... and from a quick reread this information would be considered inside information, so this would be market abuse if the company was traded on a regulated exchange.
However if you come with a business hack, people tend to point out that it's so illegal. The point of the OP is that black hat business hackers could still exploit it and they likely have ways to leak such information anonymously.
It's understood that just like black hat computer hackers they are in huge trouble if they get caught and OP does not encourage anyone to perform illegal actions.