07:27 AM EDT, 04/29/2025 (MT Newswires) -- Geospace Technologies ( GEOS ) shares surged 25% pre-bell Tuesday following a 2.4% drop in the previous session.

Aardvark Therapeutics ( AARD ) shares advanced 18%, extending Monday's rally.

Verona Pharma ( VRNA ) shares increased more than 9% after the company reported improved Q1 results that topped analysts' estimates.