RETALIATION COMPLAINT Fidelity is the second-largest mutual fund company in the United States after Vanguard Group, overseeing $1.9 trillion in managed assets. Lawson, who worked at Fidelity from 1993 until 2007, complained that she alerted supervisors to problems, including alleged improper accounting practices, only to be passed over for a promotion and threatened with punishment for insubordination. Zang, who ran several mutual funds from 1998 to 2005, alleged Fidelity gave him poor reviews and fired him in retaliation for his complaint that a new pay plan for Fidelity portfolio managers inaccurately and illegally described how pay was calculated. In a 2012 ruling, the 1st U.S. Circuit Court of Appeals in Boston sided with Fidelity. A Supreme Court ruling is due by the end of June. The case is Lawson v. FMR, U.S. Supreme Court, No. 12-3. (Reporting by Lawrence Hurley; Editing by Howard Goller and Eric Walsh)