Acme Packet (APKT, news: 13.42 +25.77%) upgraded to Neutral from Underweight at Piper Jaffray… Advanced Semi (ASX, news: 4.09 +5.41%) upgraded to Hold, $26 target, at Citi… Anglo American (AAUKY, news: 0.00 N/A) upgraded to Buy at UBS… Animal Health (AHII, news: 1.95 +5.98%) upgraded to Overweight from Neutral, $3 target, at Piper Jaffray… ArvinMeritor (ARM, news: 11.00 +3.29%) [...]