(April 21, 2020, 2:04 PM EDT) -- BOSTON — Participants in a 401(k) plan on April 17 sought preliminary approval by a Massachusetts federal court of a $12.5 million class settlement with the plan’s trustee in their Employee Retirement Income Security Act dispute over the trustee’s administration and management (John Brotherston, et al. v. Putnam Investments, LLC, et al., No. 15-13825, D. Mass.)....