Company:  PIMCO FUNDS (AMAXX)
Form Type:  497
Filing Date:  4/1/2021 
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
    Fees and Expenses of the Fund
      SHAREHOLDER FEES
      OPERATING EXPENSES
    Principal Investment Strategies
    Principal Risks
    Principal Risks of the Fund
    Certain Principal Risks of Underlying PIMCO Funds
    Performance Information
      FUND PERFORMANCE
    Investment Objective
    Fees and Expenses of the Fund
      SHAREHOLDER FEES
      OPERATING EXPENSES
    Principal Investment Strategies
    Principal Risks
    Principal Risks of the Fund
    Certain Principal Risks of Underlying PIMCO Funds
    Performance Information
    Investment Objective
    Fees and Expenses of the Fund
      SHAREHOLDER FEES
      OPERATING EXPENSES
    Principal Investment Strategies
    Principal Risks
    Performance Information
    Investment Objective
    Fees and Expenses of the Fund
      SHAREHOLDER FEES
      OPERATING EXPENSES
    Principal Investment Strategies
    Principal Risks
    Performance Information
    Description of Principal Risks
    Value Investing Risk
    Management of the Funds
    Investment Adviser and Administrator
      OPERATING EXPENSES
    Annual Underlying PIMCO Fund Expenses
      OPERATING EXPENSES
      OPERATING EXPENSES
      SALES CHARGES
      SALES CHARGES
      SALES CHARGES
    Purchasing Shares - Additional Information
    Redeeming Shares - Additional Information
    Acceptance and Timing of Purchase Orders, Redemption Orders ...
    How Fund Shares Are Priced
    Characteristics and Risks of Securities and Investment ...
    Changes in Investment Objectives and Policies
      FUND PERFORMANCE
    Financial Highlights
      PORTFOLIO OF INVESTMENTS
      PORTFOLIO OF INVESTMENTS
      PORTFOLIO OF INVESTMENTS
    Appendix A
    Appendix B
      INVESTMENT ADVISER AND ADMINISTRATOR
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Description of Principal Risks
      Tax-Efficient Investing Risk
      Environmental, Social and Governance Investing Risk
      Climate-Related Investing Risk
      Management of the Funds
      Investment Adviser and Administrator
        OPERATING EXPENSES
        FUND PERFORMANCE
        SALES CHARGES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      Financial Highlights
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
    Appendix A
    Appendix B
      INVESTMENT ADVISER AND ADMINISTRATOR
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
        FUND PERFORMANCE
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
        FUND PERFORMANCE
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
        FUND PERFORMANCE
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
        FUND PERFORMANCE
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Description of Principal Risks
      Management of the Funds
      Investment Adviser and Administrator
        OPERATING EXPENSES
        SALES CHARGES
        SALES CHARGES
        SALES CHARGES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      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
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Description of Principal Risks
      Value Investing Risk
      Management of the Funds
      Investment Adviser and Administrator
        OPERATING EXPENSES
        SALES CHARGES
        SALES CHARGES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      Financial Highlights
        FINANCIAL HIGHLIGHTS TABLE
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
    Appendix A
    Appendix B
      INVESTMENT ADVISER AND ADMINISTRATOR
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Description of Principal Risks
      Environmental, Social and Governance Investing Risk
      Management of the Fund
      Investment Adviser and Administrator
        SALES CHARGES
        SALES CHARGES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      Financial Highlights
    Appendix A
    Appendix B
      INVESTMENT ADVISER AND ADMINISTRATOR
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Description of Principal Risks
      Management of the Funds
      Investment Adviser and Administrator
        OPERATING EXPENSES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      Financial Highlights
        FINANCIAL HIGHLIGHTS TABLE
        PORTFOLIO OF INVESTMENTS
        FINANCIAL HIGHLIGHTS TABLE
        PORTFOLIO OF INVESTMENTS
    Appendix A
      INVESTMENT ADVISER AND ADMINISTRATOR
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
        FUND PERFORMANCE
      Description of Principal Risks
      Value Investing Risk
      Management of the Funds
      Investment Adviser and Administrator
        OPERATING EXPENSES
      Annual Underlying PIMCO Fund Expenses
        OPERATING EXPENSES
        OPERATING EXPENSES
        OPERATING EXPENSES
        SALES CHARGES
        SALES CHARGES
        SALES CHARGES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      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
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
        FUND PERFORMANCE
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
        FUND PERFORMANCE
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Description of Principal Risks
      Value Investing Risk
      Management of the Funds
      Investment Adviser and Administrator
        OPERATING EXPENSES
      Annual Underlying PIMCO Fund Expenses
        OPERATING EXPENSES
        OPERATING EXPENSES
        SALES CHARGES
        SALES CHARGES
        SALES CHARGES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      Financial Highlights
        FINANCIAL HIGHLIGHTS TABLE
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
    Appendix A
    Appendix B
      INVESTMENT ADVISER AND ADMINISTRATOR
      Investment Objective
      Fees and Expenses of the Fund
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
        FUND PERFORMANCE
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Description of Principal Risks
      Environmental, Social and Governance Investing Risk
      Management of the Funds
      Investment Adviser and Administrator
        OPERATING EXPENSES
        SALES CHARGES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      Financial Highlights
        PORTFOLIO OF INVESTMENTS
      Period(a) Total Return(a) Period (000s) Expenses ...
        FUND PERFORMANCE
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
    Appendix A
    Appendix B
      INVESTMENT ADVISER AND ADMINISTRATOR
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Description of Principal Risks
      Management of the Funds
      Investment Adviser and Administrator
        OPERATING EXPENSES
        SALES CHARGES
        SALES CHARGES
        SALES CHARGES
        SALES CHARGES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      Financial Highlights
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
        PORTFOLIO OF INVESTMENTS
    Appendix A
    Appendix B
      INVESTMENT ADVISER AND ADMINISTRATOR
      Investment Objective
      Fees and Expenses of the Fund
        SHAREHOLDER FEES
        OPERATING EXPENSES
      Principal Investment Strategies
      Principal Risks
      Performance Information
      Description of Principal Risks
      Management of the Fund
      Investment Adviser and Administrator
        SALES CHARGES
        SALES CHARGES
      Purchasing Shares - Additional Information
      Redeeming Shares - Additional Information
      Acceptance and Timing of Purchase Orders, Redemption Orders ...
      How Fund Shares Are Priced
      Characteristics and Risks of Securities and Investment ...
      Changes in Investment Objectives and Policies
      Financial Highlights
        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
      Securities Ownership
        TRUSTEE OWNERSHIP
      Trustee Ownership of the Investment Adviser and Principal ...
        BENEFICIAL OWNERS
        COMPENSATION TABLE
      Investment Adviser
        FUND PERFORMANCE
      Securities Ownership
        TRUSTEE OWNERSHIP
        OPERATING EXPENSES
        FUND PERFORMANCE
        OPERATING EXPENSES
        OPERATING EXPENSES
        SALES CHARGES
        FUND PERFORMANCE
        FUND PERFORMANCE
        SALES CHARGES
      PORTFOLIO TRANSACTIONS AND BROKERAGE
      Investment Decisions and Portfolio Transactions
        FUND PERFORMANCE
      Gurtin Portfolio Transactions
      NET ASSET VALUE
        FUND PERFORMANCE
        FUND PERFORMANCE
      Control Persons and Principal Holders of Securities
        BENEFICIAL OWNERS
      Financial Statements