1. AstraZeneca sheds £12 billion amid cost concerns
AstraZeneca PLC (LSE:AZN) shares tumbled around 7% as lingering concerns over its cost base overshadowed results.
2. Arm adds over US$40 billion as chip sales soar
Arm Holdings PLC (NASDAQ:ARM) saw its share jump over 55% after it reported record sales and guidance-beating earnings.
3. DS Smith and Mondi open merger talks
Mondi PLC (LSE:MNDI) said it believes a merger with fellow packaging maker DS Smith PLC (LSE:SMDS) represents an "exciting opportunity".
4. FTSE 100 weighed down by AstraZeneca disappointment
At the closing bell, the blue-chip index closed down 33.27 points, 0.4%, at 7,595.48.
5. Unilever launches buyback as sales rise but profits drop
Unilever PLC (LSE:ULVR) reported underlying sales growth in the fourth quarter as it launched a new €1.5 billion share buyback.