Gemmstock Limited, a London-based investment manager, recently bought more than $18 million worth of Gulfport Energy stock, bringing its holdings to over $34 million as of September 30, 2025. Here's what average investors need to know.Gulfport Energy Corporation is a U.S.-based independent exploration and production company with a focus on large-scale natural gas and liquids development in resource-rich shale plays.Serves a range of customers including utilities, industrial users, and energy marketers seeki ...