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    Mass. Movers

    Danvers’ Abiomed falls on downgrade

    Abiomed’s AbioCor Total Replacement Heart.
    Abiomed’s AbioCor Total Replacement Heart.

    Shares of Danvers-based Abiomed Inc. fell following a downgrade from overweight to neutral by analysts at Piper Jaffray. They are concerned over balancing risks related to Food and Drug Administration premarket approval, and benefits from opportunities including a growing product pipeline, new markets like Japan, and favorable reimbursements. Abiomed develops, manufactures, and markets technologies designed to help or replace the pumping function of the heart.