<PAGE>
Prudential Mutual Funds
Supplement dated September 5, 1995
SHAREHOLDER GUIDE
HOW TO BUY SHARES OF THE FUND/TRUST
Purchases through Prudential Securities
Prudential Securities has modified its procedures for automatic investment
effective September 5, 1995. Accordingly, the following paragraph is restated in
its entirety.
Automatic Investment. Prudential Securities has advised the Fund that it has
instituted procedures pursuant to which, upon enrollment by a Prudential
Securities client, Prudential Securities will make automatic investments of free
credit cash balances of $1,000 or more ($1.00 for IRAs and Benefit Plans)
(Eligible Credit Balances) held in such client's account in shares of the Fund
(Autosweep). Under these procedures, for accounts other than IRA and Benefit
Plans, an order to purchase shares of the Fund is placed (i) in the case of
Eligible Credit Balances resulting from the proceeds of a securities sale, at
the opening of business on the day following the settlement of the securities
sale, and (ii) in the case of Eligible Credit Balances resulting from a
non-trade related credit (e.g., receipt of a dividend or interest payment,
maturity of a bond or a cash payment into the securities account), at the
opening of business semi-monthly. For IRAs and Benefit Plans, orders will be
placed by Prudential Securities (i) on the settlement date of the securities
sale, in the case of Eligible Credit Balances resulting from the proceeds of a
securities sale and (ii) on the business day after receipt by Prudential
Securities of the non-trade related credit, in the case of Eligible Credit
Balances resulting from a non-trade related credit. Each time an order is placed
under these procedures resulting from the settlement of a securities sale, any
non-trade related credit in the client's account will also be automatically
invested. For the purposes of Autosweep, ``Benefit Plans'' include (i) employee
benefit plans as defined in Section 3(3) of the Employee Retirement Income
Security Act of 1974 (ERISA) other than governmental plans as defined in Section
3(32) of ERISA and church plans as defined in Section 3(33) of ERISA, (ii)
pension, profit-sharing or other employee benefit plans qualified under Section
401 of the Internal Revenue Code and (iii) deferred compensation and annuity
plans under Section 457 or 403(b)(7) of the Internal Revenue Code. ``IRAs'' are
Individual Retirement Accounts as defined in Section 408(a) of the Internal
Revenue Code. All shares purchased pursuant to these procedures will begin
earning dividends on the business day after the order is placed. Prudential
Securities will have the use of Eligible Credit Balances until monies are
delivered to the Fund.
Listed below are the names of the Prudential Mutual Funds and the dates of
the prospectuses to which this supplement relates.
Name of Fund Prospectus Date
Prudential Government Securities Trust
(Money Market Series) August 1, 1995
(U.S. Treasury Series) August 1, 1995
Prudential MoneyMart Assets February 28, 1995
MF950C-12
<PAGE>
