Aptorum Group (APM) shares increased more than fourfold pre-bell Tuesday, adding to Monday's gains.
VerifyMe (VRME) shares surged 192% following a 6% increase from the previous session.
Verastem (VSTM) shares rose 37% after the company said Monday that the US Food and Drug Administration accepted for review and granted a priority review status to the company's new drug application for an ovarian cancer drug combination.
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