By Elliot Gulliver-Needham The UK is on the cusp of a “regime change” in corporate attitudes towards share buybacks, Panmure Liberum analysts have said. Looking through financial statements, Panmure Liberum analysts Joachim Klement and Susana Cruz found that mentions of buybacks have risen 144 per cent over the last year for FTSE 100 companies, with a 79 per cent spike just in the last quarter. The trend is even more radical for stocks on the mid-sized FTSE 250 and FTSE Small Cap, which have seen mentions of buybacks rise 323 per cent and 408 per cent respectively in the last year, with 161 pe…