We're investigating whether MassMutual's 401(k) management violated Employee Retirement Income Security Act. If you are interested in learning more about this investigation or about how you may be affected, please take a moment to fill out the questionnaire below. We will contact you within two to three business days to schedule a phone call with one of our attorneys. You may also contact us directly.


Cohen Milstein recognizes the importance of your privacy and personal data. Information provided in this survey is confidential and will not be shared or sold.


The attorneys investigating this matter are Michelle Yau (admitted only in the District of Columbia and Massachusetts), Kai Richter (admitted only in Minnesota), and Daniel Sutter (admitted only in the District of Columbia and Maryland). 

In addition to completing the contact form above, please also feel free to contact us with any additional questions.

Contact Information:

Ciara O’Neill, Paralegal (email)
Cohen Milstein Sellers & Toll PLLC
1100 New York Avenue, N.W.
Suite 500, West Tower
Washington, D.C. 20005
Tel: (202) 408-4600
Fax: (202) 408-4699