Historic frequency and severity of losses will create sharp pressure for rate rises at 1 April.
Rates and deductibles are increasing and wordings are under scrutiny as market reacts to losses.
The Dubai-based insurer is to be publicly listed following a $400mn deal with blank cheque vehicle Tiberius.
A surge in capacity has driven down prices, and the sector is vulnerable to vast catastrophe losses.
An Inside P&C analysis delves into the operating results of the 12 largest private brokers by revenue.
The RenRe CEO raised the concern in light of the way catastrophe losses have risen from initial estimates in recent years.