Flux (FLUX) shares were down 18% in Monday premarket activity after Solidion Technology (STI) responded to Flux's rejection of its previously announced acquisition proposal, saying its bid is best and final.

Healthcare Triangle (HCTI) stock was 15% lower, following a 3.3% gain in the previous session.

Alpha Modus (AMOD) shares were down 15%, retreating from a 198% gain in the Friday session.

Innovate (VATE) stock was 11% lower, following a 1% gain in the previous session.

Wellchange (WCT) shares were down 11%, extending a 23% loss in the earlier session.