This fund just slashed its Signet position—even as the jeweler quietly posts stronger results. Here’s what long-term investors should watch.On November 14, New York City-based Cooper Creek Partners Management disclosed in a U.S. Securities and Exchange Commission filing that it reduced its position in Signet Jewelers by about 890,000 shares in the third quarter.What HappenedAccording to a filing submitted to the U.S. Securities and Exchange Commission on November 14, Cooper Creek Partners Management LLC red ...