Blocklisting Interim Review

GlaxoSmithKline PLC
08 November 2007

                        BLOCK LISTING SIX MONTHLY RETURN


Information provided on this form must be typed or printed electronically and
provided to an RIS.


Date: 8 November 2007


Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            GlaxoSmithKline Share Option Plan - Ordinary Shares

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      -2,016,067
previous return:

Plus:  The amount by which the block scheme(s) has been    5,000,000
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          493,671
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   2,490,262
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000



                        BLOCK LISTING SIX MONTHLY RETURN



Information provided on this form must be typed or printed electronically and
provided to an RIS.



Date: 8 November 2007


Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            GlaxoSmithKline Share Option Plan - ADS

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      -25,762,318
previous return:

Plus:  The amount by which the block scheme(s) has been    32,000,000
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          3,628,546
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   2,609,136
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000




                        BLOCK LISTING SIX MONTHLY RETURN



Information provided on this form must be typed or printed electronically and
provided to an RIS.



Date: 8 November 2007


Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            Glaxo Wellcome UK Share Option Scheme

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      5,210,158
previous return:

Plus:  The amount by which the block scheme(s) has been    0
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          90,408
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   5,119,750
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000




                        BLOCK LISTING SIX MONTHLY RETURN


Information provided on this form must be typed or printed electronically and
provided to an RIS.


Date: 8 November 2007



Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            Glaxo Wellcome International Share Option Scheme

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      13,582,536
previous return:

Plus:  The amount by which the block scheme(s) has been    0
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          315,380
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   13,267,156
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000


                        BLOCK LISTING SIX MONTHLY RETURN



Information provided on this form must be typed or printed electronically and
provided to an RIS.



Date: 8 November 2007


Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            Glaxo Group Limited Share Option Scheme

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      -679
previous return:

Plus:  The amount by which the block scheme(s) has been    679
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          0
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   0
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000


                        BLOCK LISTING SIX MONTHLY RETURN



Information provided on this form must be typed or printed electronically and
provided to an RIS.



Date: 8 November 2007


Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            Glaxo Wellcome 1999 Share Option Plan

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      1,040,000
previous return:

Plus:  The amount by which the block scheme(s) has been    0
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          0
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   1,040,000
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000


                        BLOCK LISTING SIX MONTHLY RETURN



Information provided on this form must be typed or printed electronically and
provided to an RIS.



Date: 8 November 2007


Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            SmithKline Beecham 1989 Executive Share Option Plan -
                                                           Approved - Ordinary Shares

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      241,549
previous return:

Plus:  The amount by which the block scheme(s) has been    0
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          37,307
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   204,242
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000


                        BLOCK LISTING SIX MONTHLY RETURN



Information provided on this form must be typed or printed electronically and
provided to an RIS.



Date: 8 November 2007


Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            SmithKline Beecham 1989 Executive Share Option Plan -
                                                           Unapproved - ADS

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      275,420
previous return:

Plus:  The amount by which the block scheme(s) has been    0
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          0
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   275,420
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000


                        BLOCK LISTING SIX MONTHLY RETURN



Information provided on this form must be typed or printed electronically and
provided to an RIS.



Date: 8 November 2007


Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            SmithKline Beecham 1989 Executive Share Option Plan -
                                                           Unapproved - Ordinary Shares

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      -63,812
previous return:

Plus:  The amount by which the block scheme(s) has been    163,812
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          0
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   100,000
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000


                        BLOCK LISTING SIX MONTHLY RETURN



Information provided on this form must be typed or printed electronically and
provided to an RIS.



Date: 8 November 2007


Name of applicant:                                         GlaxoSmithKline plc

Name of scheme:                                            GlaxoSmithKline Savings Related Share Option Scheme

Period of return:                           From:          1 June 2007            To:        7 November 2007

Balance of unallotted securities under scheme(s) from      2,458,702
previous return:

Plus:  The amount by which the block scheme(s) has been    0
increased since the date of the last return (if any
increase has been applied for):

Less:  Number of securities issued/allotted under          63,706
scheme(s) during period (see LR3.5.7G):

Equals:  Balance under scheme(s) not yet issued/allotted   2,394,996
at end of period:


Name of contact:                                           Victoria Whyte

Telephone number of contact:                               020 8047 5000




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