Square Inc and Twitter Inc (TWTR.N) chief executive officer Jack Dorsey has said he is pledging $1 billion of his equity in the payments processor toward efforts aimed at fighting the coronavirus outbreak.

In a series of tweets, Dorsey said the amount, representing about 28% of his wealth, will be donated to a charitable fund, Start Small LLC, which would later focus its attention to girls’ health and education.

I’m moving $1B of my Square equity (~28% of my wealth) to #startsmall LLC to fund global COVID-19 relief. After we disarm this pandemic, the focus will shift to girl’s health and education, and UBI. It will operate transparently, all flows tracked here: https://t.co/hVkUczDQmz

— jack (@jack) April 7, 2020