$MNKD is one of biggest losers #stocks today. read more:

MannKind Corporation (symbol: MNKD) was one of the worst losers of the
trading day today (2016-04-06), losing -6.37%. The number of shares that
changed hands was 7,888,530, or about 1 times the average daily volume in
the stock.
The closing price was $1.47, amounting to a market cap of $601,620,000,
about -79.92% off the highest price in the last 12 months. The stock has
been trading at a range between $0.64 and $7.32.
MNKD is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2004.