. one quarter of the shares of aag series a preferred stock is mandatorily convertible on each of the 30 th , 60th , 90th and 120th days after the effective date . in addition , subject to certain limitations , holders of aag series a preferred stock may elect to convert up to 10 million shares of aag series a preferred stock during each 30-day period following the effective date thereby reducing the number of aag series a preferred stock to be converted on the 120 th day after the effective date