(April 1, 2019, 2:09 PM EDT) -- JEFFERSON CITY, Mo. — In a Missouri federal court dispute against a technology and power company over the alleged breach of fiduciary and mismanagement of 401(k) retirement plans, the parties on March 28 filed a joint motion for preliminary approval of a $55 million class action settlement (Ronald C. Tussey, et al. v. ABB Inc., et al., No. 06-4305, W.D. Mo.)....