Question: In January 2016  Precision Castparts Corp. became a sibsidiary of a multinational conglomerate holding company headquartered where?
Sentence (from "Griffon Corporation"): Griffon has been publicly traded since 1961 and is listed on the New York Stock Exchange as a component stock of the S&P SmallCap 600, S&P Composite 1500, and Russell 2000 indices.
Relevant evidence: No