Historically, no single individual has been permitted to own more than 15% of Reuters, under the first of the Reuters Principles, which states, "Reuters shall at no time pass into the hands of any one interest, group or faction."
In the past, it was a fundamental rule that no single person could own more than 15% of Reuters, as expressed in the first of the Reuters Principles, which highlights, "Reuters will never be controlled by any one interest, group or faction."