The U.S. Supreme Court invited the solicitor general March 8 to express the government’s views in two appeals that were filed in response to a federal court’s ruling in a long-running challenge to Cigna Corp.'s cash balance pension plan (Amara v. CIGNA Corp.; CIGNA Corp. v. Amara).

Such invitations by the Supreme Court to the solicitor general can indicate that the high court is considering granting review. At the heart of both appeals is the question of whether the Employee Retirement Income Security Act provides a substantive remedy when plan sponsors violate the federal statute’s notice and...