Plug Power's plan to sell stock is latest blow amid liquidity, supply challenges

Plug Power Inc. said Wednesday it could start to sell stock, and its shares were tumbling in late trading. The alternative-energy company has entered into an at-the-market issuance sales agreement with B. Riley Securities that will allow it to sell up to $1 billion in common stock, Plug Power PLUG, -10.03% said in an afternoon filing with the Securities and Exchange Commission. Shares of the company, which provides hydrogen fuel-cell technology, have collapsed over the past year, shedding more than 80% of t ...