(January 8, 2020, 9:47 AM EST) -- ROCHESTER, N.Y. — Plaintiffs who allege that an employer violated the Employee Retirement Income Security Act by engaging in self-dealing in its administration of a 401(k) retirement plan on Dec. 26 filed a motion for preliminary approval of an almost $21 million settlement, urging a New York federal court to approve the settlement. which they say is fair and reasonable to all class members (In re M&T Bank Corporation ERISA Litigation, No. 16-375, W.D. N.Y.)....