Small parcels of shares, which may be uneconomic to sell can be donated to ShareGift - the Share Donation Charity (registered charity number 1052686). ShareGift transfers such holdings into their name, aggregates them, and uses the proceeds to support a wide range of UK registered charities.
If you wish to sell your shares and donate the proceeds to charity, details of the scheme are available from www.sharegift.org or by telephone on 0207 930 3737.