Lousy 401(k) plans may prompt more lawsuits by employees
DNY59 | iStock / 360 | Getty Images. Is your 401(k) retirement plan worth going to court over? More employees are doing just that. · CNBC

If you've got a less-than-stellar 401(k) retirement savings plan — one with high fees and poor investment choices — financial advisors usually recommend a few workarounds.

Focus on cheaper index funds, for example, or use target date funds that might be more diversified than the portfolio you cobble together yourself with the investment options you have.

And if that doesn't work, you might suggest to management that they look into a new 401(k) provider who charges less and has a better menu of investments.

But some employees go one step further — taking their employers to court. They allege that their retirement preparedness was compromised because of the company's poor management of their 401(k) plan.

Should you join them?

Slew of lawsuits

Emboldened by a Supreme Court win and a string of settlements, employees have filed several new class-action lawsuits against employers. The cases usually center around excessive fees, poor plan designs and alleged conflicts of interest.

"The focus has always been on practices of some plan sponsors that harm workers and retirees and limit their ability to build meaningful retirement wealth," said attorney Jerome Schlichter, whose St. Louis-based law firm represents many plaintiffs in these suits.

Schlichter's firm has been responsible for winning more than $300 million in settlements or awards since the first suit of this type was filed in 2006.

"When we started this, 401(k) plans were in a dark closet," he said.

A recent example is a $62 million settlement against aerospace manufacturer Lockheed Martin (NYSE: LMT), the largest of its kind. And last June, the Supreme Court heard a case against public utility Edison International (NYSE: EIX), the first time the court has heard a 401(k) plan case.

Employees argue that because their employers are considered fiduciaries when they offer a 401(k) plan, they've breached that duty by allowing high fees, bad fund choices and conflicts of interest.

Even more cases may follow, reaching into other areas of 401(k) management.

"[Plaintiffs' lawyers] are looking for the next class-action bonanza, and I think it's most likely going to be in the ERISA area," said Marcia Wagner, managing director of the Wagner Law Group of Boston, referring to the Employee Retirement Income Security Act of 1974, which governs 401(k) plans and other retirement savings.

Having an impact

The silver lining — at least for retirement savers — is that the lawsuits and the threat of litigation have helped drive down 401(k) fees, especially at large employers, by calling attention to the issue.