Matinas BioPharma (MTNB) shares were down 24% in Tuesday premarket activity, adding to the previous session's 36% decline.
Fast Track Group (FTRK) stock was down 25% after a 49% gain in Monday's session.
FBS Global (FBGL) shares were down 21%, following an 8% gain in the earlier session.
T3 Defense (DFNS) stock was down 17%, extending the previous session's 22% decline.