abiomed , inc . and subsidiaries notes to consolidated financial statements 2014 ( continued ) note 8 . goodwill and in-process research and development ( continued ) the company has no accumulated impairment losses on goodwill . the company performed a step 0 qualitative assessment during the annual impairment review for fiscal 2015 as of october 31 , 2014 and concluded that it is not more likely than not that the fair value of the company 2019s single reporting unit is less than its carrying amount . therefore , the two-step goodwill impairment test for the reporting unit was not necessary in fiscal 2015 . as described in note 3 . 201cacquisitions , 201d in july 2014 , the company acquired ecp and ais and recorded $ 18.5 million of ipr&d . the estimated fair value of the ipr&d was determined using a probability-weighted income approach , which discounts expected future cash flows to present value . the projected cash flows from the expandable catheter pump technology were based on certain key assumptions , including estimates of future revenue and expenses , taking into account the stage of development of the technology at the acquisition date and the time and resources needed to complete development . the company used a discount rate of 22.5% ( 22.5 % ) and cash flows that have been probability adjusted to reflect the risks of product commercialization , which the company believes are appropriate and representative of market participant assumptions . the carrying value of the company 2019s ipr&d assets and the change in the balance for the year ended march 31 , 2015 is as follows : march 31 , ( in $ 000 2019s ) .
what percentage of the class b preferred stock is currently outstanding?
note 9 . stockholders 2019 equity class b preferred stock the company has authorized 1000000 shares of class b preferred stock , $ .01 par value , of which the board of directors can set the designation , rights and privileges . no shares of class b preferred stock have been issued or are outstanding . stock repurchase program in november 2012 , the company 2019s board of directors authorized a stock repurchase program for up to $ 15.0 million of its common stock . the company financed the stock repurchase program with its available cash . during the year ended march 31 , 2013 , the company repurchased 1123587 shares for $ 15.0 million in open market purchases at an average cost of $ 13.39 per share , including commission expense . the company completed the purchase of common stock under this stock repurchase program in january 2013 . note 10 . stock award plans and stock-based compensation stock award plans the company grants stock options and restricted stock awards to employees and others . all outstanding stock options of the company as of march 31 , 2015 were granted with an exercise price equal to the fair market value on the date of grant . outstanding stock options , if not exercised , expire 10 years from the date of grant . the company 2019s 2008 stock incentive plan ( the 201cplan 201d ) authorizes the grant of a variety of equity awards to the company 2019s officers , directors , employees , consultants and advisers , including awards of unrestricted and restricted stock , restricted stock units , incentive and nonqualified stock options to purchase shares of common stock , performance share awards and stock appreciation rights . the plan provides that options may only be granted at the current market value on the date of grant . each share of stock issued pursuant to a stock option or stock appreciation right counts as one share against the maximum number of shares issuable under the plan , while each share of stock issued .