Plug Power (PLUG) stock has more than doubled in just one month, jumping after the company delivered its first 10MW GenEco electrolyzer system — one of the largest hydrogen deployments in Europe. It’s a major milestone for hydrogen energy. But the real story started months ago. More News from Barchart The Insider Buy That Sparked It Back in June, Plug Power’s CFO invested more than $600,000 in company shares — a move that immediately caught traders’ attention. Since that insider buy, PLUG stock has ra ...