GC Holdings raises $8.5M for optical circuits

GC Holdings, umbrella company of Gemfire Corporation, has raised $8.5 million in debt, options, warrants and other securities, according to filings with the SEC. Gemfire, an integrated photonics company, is based in Fremont, Calif. Buford Conley of Palo Alto Investors and Floyd Kvamme of Kleiner Perkins Caufield & Byers contributed to the latest round. GC Holdings last raised $37 million 2009.