Johnson & Johnson (JNJ) stock gained 1.2% after the company announced it is splitting into two separate companies. Hewlett Packard Enterprise (HPE) stock fell 8.3% after getting downgraded from Neutral to Sell at Goldman Sachs. AstraZeneca’s (AZN) US-listed shares slipped 6.6% after the pharmaceutical and biotech company reported earnings that missed expectations, though revenue beat estimates. Rivian (RIVN) was up 5.7%, rising for a third consecutive day since the maker of all-electric trucks and SUVs went public Wednesday in the largest US initial public offering since Facebook in 2012. Regeneron Pharmaceuticals Inc. (REGN) edged up 0.7% after the company said its monoclonal antibody cocktail has been authorized in Europe, both as a treatment and to prevent COVID-19 in cases when someone has been exposed to the virus.