Stocks making the biggest moves after hours

$Unity Software(U.US)$
— Unity Software shares jumped more than 3% after the maker of game engines used in the Angry Birds and Pokémon Go video games said it's cutting 25% of its workforce, or about 1,800 workers.

$Microchip Technology(MCHP.US)$
— Microchip Technology shares dropped more than 3% after the microcontroller maker cut its fiscal third-quarter revenue forecast, citing a "weakening economic environment." The company expects a 22% revenue decline in its third quarter, compared to prior guidance of a 15% and 20% drop.

$JetBlue Airways(JBLU.US)$
— JetBlue shares rose more than 1% after the company said President and Chief Operating Officer Joanna Geraghty will succeed Robin Hayes as CEO effective Feb. 12.