the following is a summary of stock-based performance award and restricted stock award activity .stock-based performance awards weighted average grant date fair value restricted awards weighted average grant date fair value .
[['unvested at december 31 2005', 'stock-based performance awards 897200', 'weightedaverage grantdate fair value $ 14.97', 'restricted stock awards 1971112', 'weightedaverage grantdate fair value $ 23.97'], ['granted', '135696 ( a )', '38.41', '437960', '40.45'], ['vested', '-546896 ( 546896 )', '19.15', '-777194 ( 777194 )', '20.59'], ['forfeited', '-12000 ( 12000 )', '16.81', '-79580 ( 79580 )', '26.55'], ['unvested at december 31 2006', '474000', '16.81', '1552298', '30.21'], ['granted', '393420 ( a )', '44.13', '572897', '54.97'], ['vested', '-867420 ( 867420 )', '29.20', '-557096 ( 557096 )', '28.86'], ['forfeited', '2013', '2013', '-40268 ( 40268 )', '34.55'], ['unvested at december 31 2007', '2013', '2013', '1527831', '39.87']]
( a ) additional shares were issued in 2006 and 2007 because the performance targets were exceeded for the 36-month performance periods related to the 2003 and 2004 grants .during 2007 , 2006 and 2005 the weighted average grant date fair value of restricted stock awards was $ 54.97 , $ 40.45 and $ 27.21 .the vesting date fair value of stock-based performance awards which vested during 2007 , 2006 and 2005 was $ 38 million , $ 21 million and $ 5 million .the vesting date fair value of restricted stock awards which vested during 2007 , 2006 and 2005 was $ 29 million , $ 32 million and $ 13 million .as of december 31 , 2007 , there was $ 37 million of unrecognized compensation cost related to restricted stock awards which is expected to be recognized over a weighted average period of 1.4 year .25 .stockholders 2019 equity common stock 2013 on april 25 , 2007 , marathon 2019s stockholders approved an increase in the number of authorized shares of common stock from 550 million to 1.1 billion shares , and the company 2019s board of directors subsequently declared a two-for-one split of the company 2019s common stock .the stock split was effected in the form of a stock dividend distributed on june 18 , 2007 , to stockholders of record at the close of business on may 23 , 2007 .stockholders received one additional share of marathon oil corporation common stock for each share of common stock held as of the close of business on the record date .in addition , shares of common stock issued or issuable for stock-based awards under marathon 2019s incentive compensation plans were proportionately increased in accordance with the terms of the plans .common stock and per share ( except par value ) information for all periods presented has been restated in the consolidated financial statements and notes to reflect the stock split .during 2007 , 2006 and 2005 , marathon had the following common stock issuances in addition to shares issued for employee stock-based awards : 2022 on october 18 , 2007 , in connection with the acquisition of western discussed in note 6 , marathon distributed 29 million shares of its common stock valued at $ 55.70 per share to western 2019s shareholders .2022 on june 30 , 2005 , in connection with the acquisition of ashland 2019s minority interest in mpc discussed in note 6 , marathon distributed 35 million shares of its common stock valued at $ 27.23 per share to ashland 2019s shareholders .marathon 2019s board of directors has authorized the repurchase of up to $ 5 billion of common stock .purchases under the program may be in either open market transactions , including block purchases , or in privately negotiated transactions .the company will use cash on hand , cash generated from operations , proceeds from potential asset sales or cash from available borrowings to acquire shares .this program may be changed based upon the company 2019s financial condition or changes in market conditions and is subject to termination prior to completion .the repurchase program does not include specific price targets or timetables .as of december 31 , 2007 , the company had acquired 58 million common shares at a cost of $ 2.520 billion under the program , including 16 million common shares acquired during 2007 at a cost of $ 822 million and 42 million common shares acquired during 2006 at a cost of $ 1.698 billion. .

Question: as of december 31 , 2007 , how much unrecognized compensation cost related to restricted stock awards is expected to be recognized in 1 year , in millions?
Answer: 26.4