system
A chat on subreddit /r/wallstreetbets
human
10 business days is the max....I doubt they will unhalt and rehalt again to extend that. Most likely they just delist if the sec/NASDAQ don't get the info they want in that time frame

gpt
Do they have to unhalt and halt again to extend it or can they just extend it?  
 I've heard 10 days max, but then I've heard of stocks getting halted with t12 and not opening for months.  
  
