Safeway Inc., up $2.95 to $30.99
The grocer adopted a plan to prevent a hostile takeover. Jana Partners disclosed that it had amassed a 6.2 percent stake in Safeway’s outstanding shares.
Aeropostale Inc., up $1.56 to $10.17
Private equity firm Sycamore Partners disclosed an 8 percent stake in the teen retailer, making it the company’s third-largest shareholder.
Huntsman Corp., up 36 cents to $19.50
The chemical maker will pay $1.1 billion to buy the performance additives and titanium dioxide businesses from Rockwood Holdings.
3D Systems Corp., up $3.45 to $53.51
Credit Suisse initiated coverage of the 3-D printing industry, with 3D Systems as its top pick.
Werner Enterprises Inc., down $1.02 to $23.39
The transportation company issued a warning, saying its third-quarter profits may come in below expectations due to rising costs.
Outerwall Inc., down $6.48 to $49.49
The operator of Redbox DVD rental kiosks and Coinstar coin-counting machines cut its outlook for the current quarter and full year.
Kythera Biopharmaceuticals Inc., up $8.42 to $41.95
The company said a drug intended to treat double chins met its goals in two late-stage clinical studies.
Microsoft Corp., up 13 cents to $32.93
The world’s largest software company announced a $40 billion stock buyback program and a dividend hike.