Company:  PIMCO FUNDS (AMAXX)
Form Type:  497
Filing Date:  5/3/2021 
CIK:  0000810893 
Address:  650 NEWPORT CENTER DRIVE 
City, State, Zip:  NEWPORT BEACH, California 92660 
Telephone:  949-720-6000 
Fiscal Year:  03/31 
Register and access this filing in:     
  FORM 497
    Investment Objective
      SHAREHOLDER FEES
      OPERATING EXPENSES
      FUND PERFORMANCE
    Investment Objective
      SHAREHOLDER FEES
      OPERATING EXPENSES
      FUND PERFORMANCE
    Investment Objective
      OPERATING EXPENSES
      FUND PERFORMANCE
    Investment Objective
      SHAREHOLDER FEES
      OPERATING EXPENSES
      FUND PERFORMANCE
    Investment Objective
      OPERATING EXPENSES
      FUND PERFORMANCE
    Investment Objective
      SHAREHOLDER FEES
      OPERATING EXPENSES
      FUND PERFORMANCE
    Investment Objective
      SHAREHOLDER FEES
      OPERATING EXPENSES
    Investment Objective
      SHAREHOLDER FEES
      OPERATING EXPENSES
      FUND PERFORMANCE
    Investment Objective
      SHAREHOLDER FEES
      OPERATING EXPENSES
      FUND PERFORMANCE
    Description of Principal Risks
    Management of the Funds
    Investment Adviser and Administrator
      OPERATING EXPENSES
      BENEFICIAL OWNERS
      SALES CHARGES
      SALES CHARGES
      SALES CHARGES
    Financial Highlights
      FINANCIAL HIGHLIGHTS TABLE
      PORTFOLIO OF INVESTMENTS
      PORTFOLIO OF INVESTMENTS
      PORTFOLIO OF INVESTMENTS
      PORTFOLIO OF INVESTMENTS
      PORTFOLIO OF INVESTMENTS
    Appendix A
    Appendix B
      INVESTMENT ADVISER AND ADMINISTRATOR
    Statement of Additional Information
      INVESTMENT OBJECTIVES AND POLICIES
      Quantitative Investing Risk
      MANAGEMENT OF THE TRUST
      Trustees and Officers
        NAME AND TITLE
        NAME AND TITLE
        NAME AND TITLE
        NAME AND TITLE
        NAME AND TITLE
        NAME AND TITLE
      Securities Ownership
        TRUSTEE OWNERSHIP
      Trustee Ownership of the Investment Adviser and Principal ...
        BENEFICIAL OWNERS
        BENEFICIAL OWNERS
        COMPENSATION TABLE
      Investment Adviser
        FUND PERFORMANCE
      Securities Ownership
        TRUSTEE OWNERSHIP
        OPERATING EXPENSES
        OPERATING EXPENSES
        SALES CHARGES
        FUND PERFORMANCE
        SALES CHARGES
        SALES CHARGES
      PORTFOLIO TRANSACTIONS AND BROKERAGE
      Investment Decisions and Portfolio Transactions
      Gurtin Portfolio Transactions
      NET ASSET VALUE
        FUND PERFORMANCE
        FUND PERFORMANCE
      Control Persons and Principal Holders of Securities
        BENEFICIAL OWNERS
      Financial Statements