Imo by means of a group class action lawsuit: Laws governing corporations in the United States are often standard from one state to the next. Some states are famous for protecting those that run the company rather than the shareholders (Delaware is a good example) while others are famous for protecting the shareholders far more (New York and California are examples.) Generally, the larger the state, the more developed case law will have been written relating to how corporations should operate. New York, Illinois, Massachusetts and California are the states with the most case law on operation of corporations. And the law is usually quite good, uses common sense and is fair. http://www.stimmel-law.com/en/articles/basic-rights-and-benefits-ownership-stock-non-public-corporation http://psfsi.com/#investors: Who is HydroPhi Technologies Group, Inc. legal counsel? Golenbock Eiseman Assor Bell & Peskoe 437 Madison Avenue – 40th Floor New York, New York 10022 Lawsuit has to be held in the state New York? Please consult with an attorney who is specialized in securities law. https://www.sec.gov/fast-answers/answersdfnctcohtm.html 5) Opportunity to Inspect Corporate Books and Records This opportunity is provided through a company's public filings, including its annual report. Nowadays, this isn't such a big deal as public companies are required to make their financials public. It can be more important for private companies. 6) The Right to Sue for Wrongful Acts Suing a company usually takes the form of a shareholder class-action lawsuit. A good example of this type of suit occurred in the wake of the accounting scandal that rocked WorldCom in 2002, after it was discovered that the company had grossly overstated earnings, giving shareholders and investors an erroneous view of its financial health. The telecom giant faced a firestorm of shareholder class-action suits as a result. (Want to read more about frauds? See The Biggest Stock Scams of All Time.) Shareholder rights vary from state to state, and country to country, so it is important to check with your local authorities and public watchdog groups. In North America, however, shareholders rights tend to be more developed than other nations and are standard for the purchase of any common stock. These rights are crucial for the protection of shareholders against poor management. http://www.investopedia.com/articles/01/050201.asp http://www.investopedia.com/ask/answers/05/publictoprivate.asp The SEC does not have a rule that prohibits the trading of stock once a company becomes defunct because it does not want to forbid transactions between willing buyers and sellers, including those holding shares in defunct companies That's why you should be very aware of on purposely misinforming shareholders who simply want to get out and cut their own loses. https://www.sec.gov/fast-answers/answersdfnctcohtm.html we all know that hptg has not at any time in the past showed any need to inform nor support the share holders. Although a company has become defunct, its stock may still be quoted under this "piggy-back" exception. In addition, if a company becomes defunct after quotations in the stock are published for the specified time period, the broker-dealer is not obligated to acquire current information on the company. https://www.sec.gov/fast-answers/answersdfnctcohtm.html