Federated Prime Cash Obligations Fund

A Portfolio of Money Market Obligations Trust

AUTOMATED SHARES (TICKER PTAXX)
CLASS R SHARES(TICKER PTRXX)
WEALTH SHARES (TICKER PCOXX)
SERVICE SHARES (TICKER PRCXX)
CASH II SHARES (TICKER PCDXX)
CASH SERIES SHARES (TICKER PTSXX)
CAPITAL SHARES (TICKER PCCXX)
TRUST SHARES (TICKER PTTXX)

SUPPLEMENT TO SUMMARY PROSPECTUSES, PROSPECTUS AND STATEMENT OF ADDITIONAL INFORMATION DATED SEPTEMBER 30, 2016

Advisor Shares (Ticker PCVXX) of the Fund are effective with the SEC today, June 30, 2017. While the Advisor Shares are effective with the SEC, the Advisor Shares will not be offered to the public until a future date.

Please contact your financial intermediary or call 1-800-341-7400 for more information concerning the Advisor Shares.

June 30, 2017

Federated Prime Cash Obligations Fund
Federated Investors Funds
4000 Ericsson Drive
Warrendale, PA 15086-7561

Federated Securities Corp., Distributor

Q453877 (6/17)