Burberry, Rio Tinto and AstraZeneca keep a lid on London stock gains By: MarketWatch July 16, 2021 at 10:09 AM EDT Friday's session was marked with a cluster of corporate news that was sending shares of three big heavyweights lower. Read More >> Related Stocks: AstraZeneca PLC - American Depositary Shares BHP Group Limited American Depositary Shares (Each representing two Ordinary Glencore International Plc ADR Rio Tinto Plc Common Stock