SharpLink Gaming (SBET) shares were up 55% pre-bell Tuesday, extending Friday's rally.
E2open Parent (ETWO) stock was 26% higher after the company said Sunday it agreed to be acquired by WiseTech Global for $2.10 billion.
MAC Copper (MTAL) shares were up 17% after the company agreed to a $1.03 billion takeover by Harmony Gold Mining (HMY).
ATS Corp. (ATS) stock was 15% higher after the company said over the weekend it will receive a $135 million settlement from an electric vehicle customer.