STOCKS ON THE MOVE

Yum Brands Inc., down $2.77 to $119.15

The operator of Pizza Hut, Taco Bell and KFC announced a $2 billion stock buyback program.

NortonLifeLock Inc., up $2.27 to $23.35

The security software maker gave investors an encouraging financial forecast.

Callaway Golf Co. up $3.96 to $33.89

The maker of golf equipment blew away forecasts.

Virgin Galactic, up 17 cents to $18.12

The spaceflight company said the timing of its next flight test is currently being evaluated.

Ferro Corp., up $4.20 to $21.78

Prince International is buying the specialty chemicals maker for $2.1 billion.

3D Systems Corp., up $6.26 to $24.03 The maker of 3D printers beat forecasts.

Domtar Corp., up $8 to $55.38

The paper and packaging maker is being bought by Paper Excellence.

Novavax Inc., down $22.32 to $138.18

Has a delayed timeline for its COVID-19 vaccine.