The UK’s biggest institutional investors are to demand FTSE 100 companies stop quarterly reporting as part of a radical shake-up of how shareholders interact with their investments.

In an attempt to rebalance the relationship between investors and company boards, aimed at nurturing long-term thinking, the Investment Association is expected to set out a series of demands designed to get more out of the UK’s largest companies.

The IA, whose members own approximately one third of the FTSE 100, will tell boards to move from spending time focused on three-monthly numbers to work on long-term strategy.

The new diktat, one of a string of new measures to be announced, will essentially force companies in the FTSE 350 to comply or explain how quarterly reporting fits into their strategy. The IA will monitor those who fail to do so.

The requirement will be one of 11 actions the group, whose members manage assets worth in excess of £5.5 trillion, is believed to be ready to set out as part of the launch of a landmark report later this week. The report is expected to be the most radical reshaping of big shareholders’ relations with the companies they invest in, and comes in the wake of the Kay Review and other studies designed to shift boards away from short-term targets.