Twitter chief to donate quarter of his fortune to coronavirus fight

American Jack Dorsey putting $1bn into the funding of ‘global Covid-19 relief’

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Jack Dorsey, Twitter’s chief executive, has pledged to donate $1bn (£800m) to fund coronavirus research to help “disarm this pandemic”.

Dorsey, who co-founded Twitter in 2006 and went on to found payments company Square, tweeted on Tuesday that he was donating $1bn of Square shares to a charitable fund, called Start Small, to “fund global Covid-19 relief”.

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