Yes, they got a margin call on 100k shares. Imagine using margin on something this volatile! Yet, unless they're telling fibs the punishment was not enough to deter them from more pain:-
From a recent email:-
"NIA has heard from several of its members who reported to us that when CCUR was about to break $8 the other day, their stock brokers suddenly raised margin requirements on CCUR. This is most likely what prevented CCUR from breaking $8 and when it dipped back to below $7.50, it gave the clearing firm of NIA's stock brokerage firm an excuse to make NIA's account 100% equity only. This allowed NIA's brokerage firm to sell over 100,000 CCUR shares in its account without NIA's permission - to pay off NIA's margin debt. It is very obvious that these brokerage/clearing firms have been working together to help a hedge fund who is short CCUR, and is now desperately trying to cover."