https://www.law.cornell.edu/wex/compilation

Under the Copyright Act, a compilation is a “work formed by the collection and assembling of preexisting materials or of data that are selected, coordinated, or arranged in such a way that the resulting work as a whole constitutes an original work of authorship. The term compilation includes collective works” 17 U.S.C. 101. This gives the compilation a separate copyright from any of the individual pieces within it. An author who creates a compilation owns the copyright of the compilation but not of the component parts.