Churchill's parent Credit Suisse has continued its strategy of disposing its UK insurance operations, selling its shares in Lloyd's insurer PRI.
A PRI statement said it "was notified yesterday that following the sale of 4,318035 ordinary shares, Credit Suisse First Boston Equities no longer has a notifiable interest in the issued share capital of PRI Group".
Credit Suisse yesterday agreed to sell Churchill to Royal Bank of Scotland for £1.1bn.
Chief Executive Leonhard Fischer said: "We don't have a divestment strategy. Our strategy is to strengthen the capital position of Winterthur Group and as part of that we also review our portfolio."