What public Form 5500 filings show about the Mammoth Advertising, LLC 401(k) plan — and how to find and check your own account.
Mammoth Advertising, LLC (EIN 75-3177897) reports MAMMOTH ADVERTISING 401(K) PS PLAN & TRUST on its most recent Form 5500, with $1.1M in plan assets across 14 active participants. Form 5500 is the annual report employers file with the U.S. Department of Labor for their retirement plans, and it’s public.
See the full Mammoth Advertising, LLC filing — schedules, fees, and providers.
Mammoth Advertising, LLC’s Form 5500 doesn’t separately disclose a recordkeeper we can confirm. The firms named on its Schedule C are service providers — which can include investment managers, trustees, and auditors, and are not necessarily the company that runs your account. To find who runs your 401(k), check your enrollment paperwork or a recent statement, or ask Mammoth Advertising, LLCHR for the recordkeeper’s name and login.
