only registered companies can be revoked. aryc can not be revoked because it does not have any registered shares to revoke. aryc voluntarily deregistered many months ago. i assume that's what you meant when you said delisted. aryc can not be delisted because it is not, and never has been listed anywhere
They can simply change the ticker as in past case with RBRM to LGBI, etc. where a former Bear Stearns VP ran crooked scam ring here in I-Hub few years back... I was called for testimony as other Investors were then by SEC investigators and our cell phones requested sent to FBI crime Lab in DC too...