Plug Power ( PLUG ) Closing Price : 49.9 cents (June 29) Six-Month Stock Performance : -36.8% Received Nasdaq Notice : Dec. 8 Management's Expected Action : The fuel-cell-systems maker was approved on June 7 to transfer to the Nasdaq Capital Market from the Nasdaq Global Market. Plug Power was also granted an additional 180 days to satisfy the listing requirement. Plug Power said it "intends to monitor the bid price for its common stock and will consider available options to resolve the deficiency and regain compliance." Repros Therapeutics ( RPRX ) Closing Price : 36.7 cents (June 29) Six-Month Stock Performance : -46.1% Received Nasdaq Notice : Dec. 15 Management's Expected Action : The biopharmaceutical company has been granted a July 22 oral hearing to plead its case for an extension after filing an appeal with the Nasdaq.