Genenta Science (GNTA) shares were nearly 150% higher in Monday premarket activity, adding to a 15% rise in the previous session.
Volato Group (SOAR) stock was up 116%, extending gains from the earlier session.
Hitek Global (HKIT) shares were 103% higher following a 10.6% decline in the previous session.
Hub Cyber Security (HUBC) stock was up 94%, continuing from a 137% rally in the prior session.
Namib Minerals (NAMM) shares were 51% higher, extending Friday's 4.8% gain.