Blocklisting Interim Review

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

GlaxoSmithKline Share Option Plan - Ordinary Shares

Period of return:

From:

1 November 2012

To:

13 May 2013

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

9,717,201

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

10,000,000

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

11,294,858

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

8,422,343

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

GlaxoSmithKline Share Option Plan - ADS

Period of return:

From:

1 November 2012

To:

13 May 2013

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

8,362,078

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

15,000,000

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

14,701,554

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

8,660,524

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

Glaxo Wellcome UK Share Option Scheme

Period of return:

From:

1 November 2012

To:

13 May 2013

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

5,119,750

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

0

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

0

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

5,119,750

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

Glaxo Wellcome International Share Option Scheme

Period of return:

From:

1 November 2012

To:

13 May 2013

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

13,267,156

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

0

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

0

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

13,267,156

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

Glaxo Wellcome 1999 Share Option Plan

Period of return:

From:

1 November 2012

To:

13 May 2013

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

1,040,000

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

0

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

0

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

1,040,000

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

SmithKline Beecham 1989 Executive Share Option Plan - Approved - Ordinary Shares

Period of return:

From:

1 November 2012

To:

13 May 2013

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

163,606

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

0

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

0

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

163,606

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

SmithKline Beecham 1989 Executive Share Option Plan - Unapproved - ADS

Period of return:

From:

1 November 2012

To:

13 May 2013

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

275,420

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

0

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

0

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

275,420

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

SmithKline Beecham 1989 Executive Share Option Plan - Unapproved - Ordinary

Period of return:

From:

1 November 2012

To:

13 May 2013

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

100,000

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

0

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

0

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

100,000

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

GlaxoSmithKline Savings Related Share Option Scheme

Period of return:

From:

1 November 2012

To:

13 May 2013

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

3,889,981

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

0

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

1,077,551

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

2,812,430

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

GlaxoSmithKline plc Sharesave plan 2012

Period of return:

From:

1 November 2012

To:

13 May 2013

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

0

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

5,000

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

4

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

4,996

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000