RE: Big Split21 Jul 2022 16:20
The shareholder information page you linked states, "The tax base cost apportioned to the GSK plc shares as outlined above should not be affected by the consolidation of GSK plc shares." And this is certainly true.
In their example you would now have, after consolidation, 800 GSK shares with a base cost of £8,184.20 and 1,000 HLN shares with a base cost of £1,815.80. But note that £8,184.20/800 = £10.23, which is very nearly the original cost per share in their example, which is what longterminvestor was saying when he wrote, "the average cost of your new gsk per share should be about the same as the cost per share of your old gsk."