Laxey Partners, the activist investor, is considering the future of its £130m shareholding in Shaftesbury, the property company that owns swathes of London’s West End, after the company asked investors for more cash to fund acquisitions last month.

Laxey is the largest shareholder in the company, with almost one-fifth of the stock, but is understood to be reviewing its holding in spite of agreeing with the company’s £150m fully underwritten rights issue.