Merck & Co. Inc., down $1.42 at $41.83
The drugmaker said that its fourth-quarter profit fell 7 percent because of hits from generic competition and one-time charges.
Panasonic Corp., up 27 cents at $6.88
The Japanese electronics maker returned to a profit in the third quarter as it cut costs. A weaker yen also helped results.
National Oilwell Varco Inc., down $2.88 at $71.26
Shares of the oil rig parts and services firm fell even though its fourth-quarter profit rose 16.4 percent on higher demand.
Legg Mason Inc., down 86 cents at $26.79
The money manager posted a loss for its fiscal third quarter after it wrote down the value of some of its assets.
LyondellBasell Industries NV, down $2.05 at $61.37
The company, which refines oil and makes chemicals and plastics, said that it returned to a profit in its fourth quarter.
The Brink's Co., down $2.07 at $27.75
The armored car company cautioned that it will be hard to match its 2012 earnings this year because of more productivity investments.
Bebe Stores Inc., down 23 cents at $3.95
The teen fashion retailer swung to a loss in its fiscal second quarter from a profit a year ago as it discounted more goods.
Perrigo Co., up $4.77 at $105.28
The drugmaker said that its fiscal second quarter earnings climbed 6 percent, topping Wall Street's expectations.