CM Squared, a New York finance house that works with institutional investors and family offices, has emerged as the new equity investor in Sigma Wireless Telecom, the company pursuing a €500 million claim against the State over the awarding of the State’s second mobile phone licence.  CM Squared, through a Cayman Islands vehicle called CM Squared Sigma Investor LP, has purchased 497 shares in Sigma Wireless Telecom, according to filings with the Companies Registration Office in Dublin in recent days. The purchase price for the shares is €2.2 million, the documents state. Sigma Wireless Telecom is the holding company behind…