David Claydon is co-founder and co-CEO of Macro Advisory Partners, a macro investment management firm. He was previously affiliated with J P Morgan and Morgan Stanley. 
He is registered by The Electoral Commission as having donated to The In Campaign, the pro-EU group in the UK's EU referendum of June 2016.
Donated £9,000 on 3 May 2016 to Britain Stronger in Europe, the pro-EU campaign which failed to deliver a remain vote in the UK's EU referendum on 23 June 2016. 
- ↑ 'Partners', Macro Advisory Partners, accessed 29 June 2016
- ↑ Electoral Commission, The In Campaign Donations, accessed 29 June 2016