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 ADR Bhp Billiton Ltd ADR Glencore International Plc ADR Rio Tinto Plc ADR