From what I understand, actions taken by a public Board of Directors which are so detrimental to the public company as to be unconscionable towards the best interest of the company as a whole may be what the law is. I don't think there needs to be evidence of a securites violation. Just actions which are so detrimental to the company and non-voting shareholders.
Anyone wanting to look, be my guest. There are probably government agencies or non profit consumer groups with an online presence that could help narrow the search to a great extent.