The Delaware Court of Chancery is a court of equity in the American state of Delaware. It is one of Delaware's three constitutional courts, along with the Supreme Court and Superior Court.
The Court's jurisdiction is a hybrid of constitutional provisions, statutes, and case law.
According to the Delaware Judicial Information center
"The Court of Chancery has jurisdiction to hear and determine all matters and causes in equity. The general equity jurisdiction of the Court is measured in terms of the general equity jurisdiction of the High Court of Chancery of Great Britain as it existed prior to the separation of the American colonies. The General Assembly may confer upon the Court of Chancery additional statutory jurisdiction. In today's practice, the litigation in the Court of Chancery consists largely of corporate matters, trusts, estates, and other fiduciary matters, disputes involving the purchase and sale of land, questions of title to real estate, and commercial and contractual matters in general. When issues of fact to be tried by a jury arise, the Court of Chancery may order such facts to trial by issues at the Bar of the Superior Court of Delaware. (10 Del. C., 369)."
Article IV, Section 10 of the Delaware Constitution establishes the Court and provides that it "shall have all the jurisdiction and powers vested by the laws of this State in the Court of Chancery." The Court has one Chancellor, who is the chief judicial officer of the Court, and four Vice Chancellors. It also has two Masters in Chancery, who are assigned by the Chancellor and Vice Chancellors to assist in matters as needed.
Title 10, Section 341 of the Delaware Code states that the Court "shall have jurisdiction to hear and determine all matters and causes in equity." Subsequent decisions have held that the Court's equitable jurisdiction is the same as that held by the English High Court of Chancery at the time of American independence in 1776.
The Court's most significant power is its ability to issue preliminary and permanent injunctions and temporary restraining orders. This is frequently exercised in the context of disputes involving mergers and acquisitions or sales of corporations, wherein a corporate suitor or a shareholder will attempt to enjoin—that is, prevent—the sale or merger of a corporation, claiming that their stock value has been diluted or that they have superior rights to purchase the corporation. In a typical sale or merger dispute, a plaintiff will seek a temporary restraining order, sometimes on an ex parte basis, to prevent the transaction from taking place and preserve the status quo. If the Court grants that relief, the plaintiff will then seek a preliminary injunction to maintain the current state of affairs until a trial can take place.