shares of tivic health systems fell sharply monday after the company priced a public offering the stock fell 46 to 6 cents in earlymorning trading shares have shed 91 year to date the san franciscobased bioelectronic medicine company said it would sell 325 million shares of its common stock at a price of 55 cents a share expecting proceeds of 18 million the company announced the public offering on friday and said it would use the proceeds for working capital and general corporate purposes tivic said it expects the offering to close on or about july 11