DTR 5.5 Acquisition or disposal by issuer of shares
An issuer of shares must, if it acquires or disposes of its own shares, either itself or through a person acting in his own name but on the issuer's behalf, make public the percentage of voting rights attributable to those shares it holds as a result of the transaction as a whole,1 as soon as possible, but not later than four trading days following such acquisition or disposal where that percentage reaches, exceeds or falls below the thresholds of 5% or 10% of the voting rights.
2DTR 5.5.1R does not apply to a third-country issuer that falls within DTR 5.11.4R.
Additional requirements in relation to a listed company which purchases its own equity shares are contained in UKLR 9.6.6R3.