Vulcan Materials (VMC) stock was down 7% pre-bell Tuesday after the company reported lower Q4 adjusted earnings year over year.

Genuine Parts (GPC) shares were 7% lower after the company reported lower Q4 adjusted earnings and announced a plan to separate its automotive and industrial parts groups into two independent, publicly traded entities.

Danaher (DHR) stock was down 6.9% after the Financial Times reported that the company is close to acquiring Masimo (MASI) in a deal worth about $10 billion.

Medtronic (MDT) shares were 3.7% lower after the company reported lower fiscal Q3 non-GAAP earnings.