Look at the volume, you can buy but can't sell for those preferred shares. It is a high risk, just trade the stock and don't think you buy this stock to prepare for making any claim, right?
Symbol Last Today’s Change Bid Size Ask Size Volume More
LEHMQ 0.2151 +0.1631 (+313.65%) 0.21 x5,000 0.22 x5,000 226,351,394
LEHKQ 0.105 +0.07 (+200.00%) 0.11 x100 0.00 x0 94,017
LEHLQ 0.01 0.00 (0.00%) 0.11 x1 0.15 x100 0
LEHNQ 0.05 0.00 (0.00%) 0.13 x5,000 0.18 x5,000 0
LEHPQ 0.20 0.00 (0.00%) 0.00 x0 0.00 x0 0
LBHGP 1.50 +0.55 (+57.89%) 0.00 x0 0.00 x0 500