NEW YORK -- Petaluma, Cailf.-based Cyan, a global supplier of software defined networking (SDN) solutions, opened for trading today on the New York Stock Exchange (NYSE) under the ticker symbol “CYNI” after its initial public offering. Barclays is the Designated Market Maker (DMM) for the company’s stock. Chairman and Chief Executive Officer Mark Floyd, joined by members of the company’s management team, celebrated the company’s first day of trading by visiting the NYSE trading floor for the stock opening and by ringing The Opening Bell.Cyan Inc.