Benzinga's Top Downgrades

Analysts at Credit Suisse downgraded Research in Motion Limited

from “outperform” to “neutral.” RIMM's shares closed at $25.89 yesterday. Research in Motion's trailing-twelve-month profit margin is 17.14%. Analysts at RBC Capital Markets downgraded Piedmont Office Realty Trust Inc

from “outperform” to “sector perform.” PDM 's shares closed at $20.72 yesterday. PDM 's PEG ratio is 13.28. Credit Suisse downgraded Motorola Mobility Holdings

from “outperform” to “underperform.” MMI's shares closed at $24.49 yesterday. Motorola Mobility's trailing-twelve-month operating margin is -0.21%. Analysts at RBC Capital Markets downgraded Brandywine Realty Trust

from “outperform” to “sector perform.” BDN's stock closed at $11.46 yesterday. BDN's trailing-twelve-month ROE is -1.19%.