Blocklisting Interim Review

GlaxoSmithKline PLC 09 August 2005 SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme GlaxoSmithKline Savings Related Share Option Scheme 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme 136,820 5. Number of shares issued / allotted under scheme during period: 127,500 6. Balance under scheme not yet issued / allotted at end of period 259,320 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 104,196 shares blocklisted on 25 June 2002 42,593 shares blocklisted on 15 March 2004 100,000 shares blocklisted on 29 March 2004 200,000 shares blocklisted on 4 November 2004 250,000 shares blocklisted on 19 January 2005 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme GlaxoSmithKline Share Option Plan - ADS 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme 365,352 5. Number of shares issued / allotted under scheme during period: 1,417,882 6. Balance under scheme not yet issued / allotted at end of period 1,337,470 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 77,942 shares blocklisted on 11 December 2003 42,592 shares blocklisted on 15 March 2004 42,593 shares blocklisted on 29 March 2004 600,000 shares blocklisted on 4 November 2004 2,390,000 shares blocklisted on 12 May 2005 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme GlaxoSmithKline Share Option Plan - Ordinary Shares 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme 156,906 5. Number of shares issued / allotted under scheme during period: 436,301 6. Balance under scheme not yet issued / allotted at end of period (189,395) 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 77,942 shares blocklisted on 11 December 2003 90,000 shares blocklisted on 12 May 2005 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme Glaxo Group Limited Share Option Scheme 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme 1,694,816 5. Number of shares issued / allotted under scheme during period: 1,225,136 6. Balance under scheme not yet issued / allotted at end of period 469,680 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 10,000,000 shares blocklisted on 27 December 2000 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme Glaxo Wellcome 1999 Share Option Plan 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme 40,000 5. Number of shares issued / allotted under scheme during period: 0 6. Balance under scheme not yet issued / allotted at end of period 40,000 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 40,000 shares blocklisted on 25 June 2002 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme Glaxo Wellcome International Share Option Scheme 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme 20,328,126 5. Number of shares issued / allotted under scheme during period: 1,311,688 6. Balance under scheme not yet issued / allotted at end of period 19,016,438 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 35,236,365 shares blocklisted on 27 December 2000 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme Glaxo Wellcome UK Share Option Scheme 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme 5,475,236 5. Number of shares issued / allotted under scheme during period: 43,807 6. Balance under scheme not yet issued / allotted at end of period 5,431,429 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 6,031,645 shares blocklisted on 27 December 2000 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme SmithKline Beecham 1989 Executive Share Option Plan - Approved - Ordinary Shares 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme 222,303 5. Number of shares issued / allotted under scheme during period: 187,993 6. Balance under scheme not yet issued / allotted at end of period 534,310 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 3,027,248 shares blocklisted on 27 December 2000 500,000 shares blocklisted on 4 November 2004 500,000 shares blocklisted on 19 January 2005 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme SmithKline Beecham 1989 Executive Share Option Plan - Unapproved - ADS 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme (195,347) 5. Number of shares issued / allotted under scheme during period: 649,235 6. Balance under scheme not yet issued / allotted at end of period 275,418 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 6,000,000 shares blocklisted on 27 December 2000 700,000 shares blocklisted on 4 November 2004 1,000,000 shares blocklisted on 19 January 2005 120,000 shares blocklisted on 12 May 2005 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. Name of company GlaxoSmithKline plc 2. Name of scheme SmithKline Beecham 1989 Executive Share Option Plan - Unapproved - Ordinary Shares 3. Period of return: From 1 January 2005 To 30 June 2005 4. Number and class of shares(s) (amount of stock / debt security) not issued under scheme 215,861 5. Number of shares issued / allotted under scheme during period: 159,632 6. Balance under scheme not yet issued / allotted at end of period 56,229 7. Number and class of share(s) (amount of stock / debt securities) originally listed and the date of admission; 1,000,000 shares blocklisted on 27 December 2000 100,000 shares blocklisted on 15 March 2004 42,592 shares blocklisted on 29 March 2004 500,000 shares blocklisted on 4 November 2004 Please confirm total number of shares in issue at the end of the period in order for us to update our records 5,943,249,825 Contact for queries Name Philip Miller Address 980 Great West Road, Brentford, Middlesex, TW8 9GS Telephone 020 8047 5000 Person making the return Name Simon Bicknell Position Company Secretary Signature This information is provided by RNS The company news service from the London Stock Exchange

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