To my knowledge, traditionally, the Board of Directors hire and fire CEOs. Those boards consist of people appointed by or are part of shareholders. I don’t recall a case where a CEO has been fired by end users. 

If this Board does not fire this CEO - they should be Fired !  Stock price is now reflecting the failures of leadership and shareholders should file a class action suit against the Board and Management !!

Great hardware but terrible software - complete malpractice !