Shares of the following companies may have unusual moves in U.S. trading. Stock symbols are in parentheses, and prices are as of 8:00 a.m. in New York.
Acme Packet Inc. (APKT) : The maker of devices to transmit phone calls and video was rated a new “neutral” at Wedbush Securities Inc.
American International Group Inc. (AIG) fell 1.3 percent to $35.59. The Federal Reserve Bank of New York said it has declined the insurer’s $15.7 billion offer to purchase the residential-mortgage backed securities owned by the central bank’s Maiden Lane II LLC rescue fund.
Berkshire Hathaway Inc. (BRK/A) (BRK/B US) dropped 1.8 percent to $83.91. The Omaha, Nebraska-based company’s Chief Executive Officer Warren Buffett said David L. Sokol, chairman of several units of the company, has resigned.
Bombardier Inc. (BBD/B) : The world’s third-largest planemaker said quarterly profit rose 80 percent, more than analysts estimated, as it won business-jet orders and cleared out inventory that had built up during the recession.
Dendreon Corp. (DNDN) added 4.1 percent to $37.00. The company’s prostate cancer drug Provenge should be covered by the U.S. government for use in older men, regulators said. The $93,000 drug regimen is reasonable and necessary for men with advanced, castrate-resistant prostate tumors who have minimal or no symptoms of the disease, the Centers for Medicare & Medicaid Services said.
DryShips Inc. (DRYS) rose 4.3 percent to $5.14. The Greek owner of deep-water drilling rigs and vessels that haul iron ore and coal posted fourth-quarter profit excluding some items of 20 cents a share. On that basis, analysts on average estimated 25 cents, according to a Bloomberg survey.
General Maritime Corp. (GMR) declined 7.9 percent to $1.99. The New York-based shipping company got a $200 million investment from Oaktree Capital Management LP and a $550 million revolving line of credit.
Hershey Co. (HSY) : The maker of Reese’s Peanut Butter Cups said it’s boosting wholesale prices about 9.7 percent because of fuel, raw materials and transportation costs. The company also reaffirmed its 2011 earnings estimate.
Mako Surgical Corp. (MAKO) : The medical device company said it received a binding commitment from Hospital Management Associate Inc. (HMA US) for the establishment of 11 MAKOplasty sites for orthopedic procedures.
UnitedHealth Group Inc. (UNH) advanced 1.3 percent to $45.98. The managed care provider was raised to “perform” from “underperform” at Oppenheimer & Co.
To contact the reporter on this story: Jennifer A. Johnson in New York at Jjohnson156@bloomberg.net
To contact the editor responsible for this story: Nick Baker at email@example.com.