EDEN PRAIRIE, Minn., June 14, 2013 (GLOBE NEWSWIRE) -- Sunshine Heart, Inc. (Nasdaq:SSH) today announced that its Board of Directors adopted a stockholder rights plan (the "Rights Plan" or "Plan") and declared a dividend distribution of one right ("Right") for each outstanding share of Sunshine Heart common stock. The Rights Plan is intended to protect the Company and its stockholders from efforts to obtain control of Sunshine Heart that its Board of Directors determines are not in the best interests of the Company and its stockholders, and to enable all stockholders to realize the long-term value of their investment in Sunshine Heart. The Rights Plan is not intended to interfere with any merger, tender or exchange offer or other business combination approved by the Board of Directors. Pursuant to the Plan, Sunshine Heart is issuing one Right for each current share of common stock outstanding at the close of business on June 24, 2013. Initially, these rights will not be exercisable and will trade with the shares of the Company's common stock. If the Rights become exercisable, each Right will entitle stockholders to buy one one-thousandth of a share of a new series of participating preferred stock at an exercise price of $35 per one one-thousandth of a share ("exercise price"). The Rights will be exercisable only if a person or group acquires 15% or more of Sunshine Heart's common stock in a transaction not approved by the Company's Board of Directors. If a person or group acquires 15% or more of Sunshine Heart's outstanding common stock, each Right will entitle its holder (other than such person or members of such group) to purchase, at the exercise price (subject to adjustment as provided in the Plan), a number of shares of the Company's common stock having an aggregate market value equal to twice the then-current exercise price.