** British luxury carmaker Aston Martin AML.L rises 5% to 59.75p; among top gainers on FTSE mid 250 index .FTMC
** Co says it will cut up to 20% of workforce amid weak demand, tariff pressures
** Restructuring to result in annualised operating expenditure, capex savings of ~40 million pounds ($54.1 million), of which majority will be realised in FY26
** Co posts FY loss before tax of 363.9 million pounds vs year-ago loss before tax of 289.1 million pounds
** YTD, AML down 7.95%
($1 = 0.7398 pounds)
(Reporting by Megha Anilkumar Nair)
((MeghaAnilkumar.Nair@thomsonreuters.com;))