Block listing Interim Review

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

GlaxoSmithKline Share Option Plan - Ordinary Shares

Period of return:

From:

1 November 2016

To:

30 April 2017

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

3,530,802

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):

2,142,9521

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

1,569,653

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

4,104,101

1 This figure includes an adjustment of +142,952 unallotted securities that were allotted under the GlaxoSmithKline plc 2009 Deferred Annual Bonus Plan but originally debited from the balance for this Scheme.

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 2016

To:

30 April 2017

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

9,349,738

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):

553,924

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

8,795,814

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 2016

To:

30 April 2017

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 2016

To:

30 April 2017

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 2016

To:

30 April 2017

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 2016

To:

30 April 2017

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 2016

To:

30 April 2017

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 2016

To:

30 April 2017

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 2016

To:

30 April 2017

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

2,742,626

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:

2,742,626 (the GlaxoSmithKline Savings Related Share Option Scheme has now expired. The balance of 2,742,626 un-allotted shares under this Scheme has therefore lapsed)

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

GlaxoSmithKline plc Share Save Plan 2012

Period of return:

From:

1 November 2016

To:

30 April 2017

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

239,107

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):

2,000,000

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

603,782

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

1,635,325

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000

Name of applicant:

GlaxoSmithKline plc

Name of scheme:

GlaxoSmithKline plc 2009 Deferred Annual Bonus Plan

Period of return:

From:

1 November 2016

To:

30 April 2017

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):

600,000

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

399,9291

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

200,071

1 This figure includes an adjustment of +142,952 allotted securities that were allotted under this Scheme but originally debited from the balance for the block listing under the GlaxoSmithKline Share Option Plan - Ordinary Shares.

Name of contact:

Victoria Whyte

Telephone number of contact:

020 8047 5000