The former CIO has been appointed as a non-executive director of the trust and will officially take up the role from 1 February 2024.
Moore retired in 2021 after serving nearly two decades at Columbia Threadneedle.
He was replaced by the company's then EMEA CIO and global head of equities William Davies in January 2022.
Columbia Threadneedle small-cap manager Peter Ewins to retire
The former CIO has been appointed as a non-executive director of the trust and will officially take up the role from 1 February 2024.
According to an RNS notice today (22 December), he is now based in the US.
At the time of publication he does not own any shares in the JPMorgan American portfolio, according to the asset manager.
The JPMorgan American trust is co-run by Jonathan Simon and Timothy Parton, holding a market cap of £1.6bn and trading at a 1.2% discount, according to the Association of Investment Companies.
Octopus Renewables trust makes bid for Aquila European Renewables
EFAMA calls for major reforms to SFDR labelling regime
Read more on investmentweek.co.uk