C3is (CISS) stock was up more than 65% in Wednesday's premarket activity after closing Tuesday with a 21% decrease

Bluejay Diagnostics (BJDX) shares were 38% higher pre-bell, extending an over 5% rise in the previous session.

Julong (JLHL) stock was up 37% after a 12% loss at the prior close.

Gran Tierra Energy (GTE) shares were 48% higher after the company agreed to sell its oil business in Colombia and Ecuador to French oil and natural gas exploration and production company Maurel & Prom for an enterprise value of $1.33 billion.

Jin Medical International (ZJYL) stock was up more than 28% following the release of its fiscal H1 results.