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 .

Table:
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
Calculation: divide(37, 1.4)