Information regarding each Fund’s principal investment strategies, principal risks and risk management strategies, the effects of each Fund’s leverage, and each Fund’s fundamental investment restrictions, including a summary of certain changes thereto during the most recent fiscal year, can be found within the relevant sections of this report. Please refer to the Table of Contents for further information.

We believe that bond funds have an important role to play in a well-diversified investment portfolio. It is important to note, however, that in an environment where interest rates may trend upward, rising rates would negatively impact the performance of most bond funds, and fixed-income securities and other instruments held by a Fund are likely to decrease in value. A wide variety of factors can cause interest rates or yields of U.S. Treasury securities (or yields of other types of bonds) to rise (e.g., central bank monetary policies, inflation rates, general economic conditions, etc.). In addition, changes in interest rates can be sudden and unpredictable, and there is no guarantee that Fund management will anticipate such movement accurately. A Fund may experience losses as a result of movements in interest rates.

The Board approved the reorganizations (the “Reorganizations”) of: (i) PIMCO California Municipal Income Fund II (“PCK”) and PIMCO California Municipal Income Fund III (“PZC” and together with PCK, the “CA Target Funds”) with and into PIMCO California Municipal Income Fund (“PCQ”) (the “CA Reorganizations”); (ii) PIMCO New York Municipal Income Fund (“PNF”) and PIMCO New York Municipal Income Fund III (“PYN” and together with PNF, the “NY Target Funds”) with and into PIMCO New York Municipal Income Fund II (“PNI”) (the “NY Reorganizations”); and (iii) PIMCO Municipal Income Fund (“PMF”) and PIMCO Municipal Income Fund III (“PMX” and together with PMF, the “National Target Funds”) with and into PIMCO Municipal Income Fund II (“PML”) (the “National Reorganizations”).

At a Joint Special Meeting of Shareholders of PCQ, PNI, and PML held on June 27, 2025, the respective shareholders approved the issuance of additional common shares of each of PCQ, PNI, and PML to be issued to the common shareholders of each CA Target Fund, NY Target Fund, and National Target Fund, respectively. No action was needed from shareholders of of each CA Target Fund, NY Target Fund, and National Target Fund. Pursuant to each Reorganization, shareholders of the CA Target Funds became shareholders of PCQ, shareholders of the NY Target Funds became shareholders of PNI, and shareholders of the National Target Funds became shareholders of PML. The Reorganizations were completed upon the close of business on August 1, 2025. Each Reorganization was structured to qualify as a tax-free reorganization under Section 368(a) of the Internal Revenue Code. In each Reorganization, PCQ, PNI, and PML acquired all of the assets and assumed all of the liabilities of the CA Target Funds, NY Target Funds, and National Target Funds, respectively, in exchange for newly-issued

common shares of PCQ, PNI, and PML, respectively (“Common Merger Shares”) and newly-issued Remarketable Variable Rate MuniFund Term Preferred Shares (“RVMTP Shares”) of PCQ, PNI and PML, respectively (“RVMTP Merger Shares”). Common shareholders of the CA Target Funds, NY Target Funds, and National Target Funds received Common Merger Shares (and cash in lieu of fractional Common Merger Shares, if any), equal to the aggregate net asset value of their holdings of each of PCQ, PNI, and PML, respectively, as applicable. The exchanges were based on the net asset value per common share of the CA Target Funds, NY Target Funds, and National Target Funds as of the close of business on August 1, 2025. Holders of RVMTP Shares of the CA Target Funds, NY Target Funds, and National Target Funds received RVMTP Merger Shares of PCQ, PNI, and PML, respectively, with an aggregate liquidation preference equal to, and other terms that are substantially identical to, the corresponding series of the RVMTP Shares of the CA Target Funds, NY Target Funds, and National Target Funds, respectively. The CA Target Funds, NY Target Funds, and National Target Funds have no assets and each has filed a Request for Withdrawal of Registration Statement on Form N-2 and an Application for Deregistration of Certain Registered Investment Companies with the Securities and Exchange Commission (the “SEC”) to deregister as an investment company and wind down operations.

Changing interest rates may have unpredictable effects on markets, which may detract from Fund performance. The interest rate environment has fluctuated in recent years, moving from historically low interest rates in 2020 and 2021 to high interest rates in 2022 and 2023 as a result of the U.S. Federal Reserve (the “Fed”) raising interest rates multiple times in efforts to combat inflation. Starting in late 2024 and again in 2025, the Fed lowered interest rates. It is uncertain whether rates will remain steady, increase or decrease in the future. As such, the Funds may face a heightened level of risk associated with changing interest rates and/or bond yields. This could be driven by a variety of factors, including but not limited to central bank monetary policies, changing inflation or real growth rates, general economic conditions, increasing bond issuances or reduced market demand for certain types of bonds or bonds generally. Further, while bond markets have steadily grown over the past three decades, dealer inventories of corporate bonds are near historic lows in relation to market size. As a result, there has been a significant reduction in the ability of dealers to “make markets.”

Bond funds and individual bonds with a longer duration (a measure used to determine the sensitivity of a security’s price to changes in interest rates) tend to be more sensitive to changes in interest rates, usually making them more volatile than funds or securities with shorter durations. All of the factors mentioned above, individually or collectively, could lead to increased volatility and/or lower liquidity in the fixed income markets, or negatively impact a Fund’s performance or cause a Fund to incur losses.

Investing in the municipal bond market involves the risks of investing in debt securities generally and certain other risks. The amount of public information available about the municipal bonds in which a Fund may invest is generally less than that for corporate equities or bonds, and the investment performance of a Fund’s investment in municipal bonds may therefore be more dependent on the analytical abilities of Pacific Investment Management Company LLC (“PIMCO”) than its investments in taxable bonds. The secondary market for municipal bonds also tends to be less well-developed or liquid than many other securities markets, which may adversely affect a Fund’s ability to sell its bonds at attractive prices.

The ability of municipal issuers to make timely payments of interest and principal may be diminished during general economic downturns, by litigation, legislation or political events, or by the bankruptcy of the issuer. Issuers of municipal securities also might seek protection under the bankruptcy laws. In the event of bankruptcy of such an issuer, a Fund could experience delays in collecting principal and interest and the Fund may not, in all circumstances, be able to collect all principal and interest to which it is entitled.

A Fund that has substantial exposures to California municipal bonds may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal. Certain issuers of California municipal bonds have experienced serious financial difficulties in the past and reoccurrence of these difficulties may impair the ability of certain California issuers to pay principal or interest on their obligations. Provisions of the California Constitution and State statutes that limit the taxing and spending authority of California governmental entities may impair the ability of California issuers to pay principal and/or interest on their obligations. While California’s economy is broad, it does have major concentrations in advanced technology, aerospace and defense-related manufacturing, trade, entertainment, real estate and financial services, and may be sensitive to economic problems affecting those industries. Future California political and economic developments, constitutional amendments, legislative measures, executive orders, administrative regulations, litigation and voter initiatives as well as environmental events, natural disasters, or social unrest could have an adverse effect on the debt obligations of California issuers.

A Fund that has substantial exposures to New York municipal bonds may be affected significantly by economic, regulatory or political developments affecting the ability of New York issuers to pay interest or repay principal. While New York’s economy is broad, it does have concentrations in the financial services industry, and may be sensitive to economic problems affecting that industry. Certain issuers of New York municipal bonds have experienced serious financial difficulties in the past and reoccurrence of these difficulties may impair the ability of certain New York issuers to pay principal or interest on their obligations. The

financial health of New York City affects that of the State, and when New York City experiences financial difficulty, it may have an adverse effect on New York municipal bonds held by a Fund. The growth rate of New York has at times been somewhat slower than the nation overall. The economic and financial condition of New York also may be affected by various financial, social, economic, environmental, and political factors.

Classifications of the Funds’ portfolio holdings in this report are made according to financial reporting standards. The classification of a particular portfolio holding as shown in the Allocation Breakdown and Schedule of Investments or Consolidated Schedule of Investments sections of this report may differ from the classification used for the Funds’ compliance calculations, including those used in the Funds’ then-current prospectus, investment objectives, regulatory and other investment limitations and policies, which may be based on different asset class, sector or geographical classifications. Each Fund is separately monitored for compliance with respect to prospectus and regulatory requirements.

The geographical classification of foreign (non-U.S.) securities in this report, if any, are classified by the country of incorporation of a holding. In certain instances, a security’s country of incorporation may be different from its country of economic exposure.

The United States’ enforcement of restrictions on U.S. investments in certain issuers and tariffs on goods from certain other countries has contributed to and may continue to contribute to international trade tensions and may impact portfolio securities. The U.S. government has indicated an intent to alter its approach to international trade policy, including in some cases renegotiating, modifying or terminating certain bilateral or multi-lateral trade arrangements with foreign countries, and it has proposed to take and/or taken related actions, including the imposition of or stated potential imposition of a broad range of tariffs. The imposition of tariffs, trade restrictions, currency restrictions or similar actions (or retaliatory measures taken in response) could lead to, for example, price volatility, reduced market sentiment, and changes in inflation expectations. These and other geopolitical events may contribute to increased instability in the U.S. and global economies and markets, which may have an adverse effect on the performance of the Funds and their investments.

The common shares of the Funds trade on the New York Stock Exchange. As with any stock, the price of a Fund’s common shares will fluctuate with market conditions and other factors. If you sell your common shares of a Fund, the price received may be more or less than your original investment.

Shares of closed-end investment management companies, such as the Funds, frequently trade at a discount from their net asset value (“NAV”) and may trade at a price that is less than the initial offering

price and/or the NAV of such shares. Further, if a Fund’s shares trade at a price that is more than the initial offering price and/or the NAV of such shares, including at a substantial premium and/or for an extended period of time, there is no assurance that any such premium will be sustained for any period of time and will not decrease, or that the shares will not trade at a discount to NAV thereafter.

Increased volatility in the U.S. and global markets could be harmful to the Funds, issuers in which they invest and other market participants and Fund service providers. For example, if a bank at which a Fund or issuer has an account fails, any cash or other assets in bank or custody accounts, which may be substantial in size, could be temporarily inaccessible or permanently lost by the Fund or issuer. If a bank that provides a subscription line credit facility, asset-based facility, other credit facility and/or other services to an issuer or to a fund fails, the issuer or fund could be unable to draw funds under its credit facilities or obtain replacement credit facilities or other services from other lending institutions with similar terms.

Issuers in which a Fund may invest can be affected by volatility in the banking sector. Even if banks used by issuers in which the Funds invest remain solvent, volatility in the banking sector could contribute to, cause or intensify an economic recession, increase the costs of capital and banking services or result in the issuers being unable to obtain or refinance indebtedness at all or on as favorable terms as could otherwise have been obtained. Potential impacts to funds and issuers resulting from volatility in the banking sector and accompanying market conditions and potential legislative or regulatory responses are uncertain. Such conditions and responses, as well as a changing interest rate environment, can contribute to decreased market liquidity and erode the value of certain holdings. Market volatility and uncertainty and/or a downturn in market and economic and financial conditions, as a result of developments in the banking sector or otherwise (including as a result of delayed access to cash or credit facilities), could have an adverse impact on the Funds and issuers in which they invest.

On each Fund Summary page in this Shareholder Report, the Average Annual Total Return table and Cumulative Returns chart measure performance assuming that any dividend and capital gain distributions were reinvested. Total return is calculated by determining the percentage change in NAV or market price (as applicable) in the specified period. Returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions. Total return for a period of more than one year represents the average annual total return. Performance at market price will differ from results at NAV. Although market price returns tend to reflect investment results over time, during shorter periods returns at market price can also be influenced by factors such as changing views about a Fund, market conditions, supply and

demand for the Fund’s shares, or changes in the Fund’s dividends. Performance shown is net of fees and expenses. Historical NAV performance for a Fund may have been positively impacted by fee waivers or expense limitations in place during some or all of the periods shown, if applicable. Future performance (including total return or yield) and distributions may be negatively impacted by the expiration or reduction of any such fee waivers or expense limitations.

The dividend rate that a Fund pays on its common shares may vary as portfolio and market conditions change, and will depend on a number of factors, including without limit the amount of a Fund’s undistributed net investment income and net short- and long-term capital gains, as well as the costs of any leverage obtained by a Fund. As portfolio and market conditions change, the rate of distributions on the common shares and a Fund’s dividend policy could change. There can be no assurance that a change in market conditions or other factors will not result in a change in a Fund’s distribution rate or that the rate will be sustainable in the future.

The following table discloses the inception date and diversification status of each Fund:

An investment in a Fund is not a bank deposit and is not guaranteed or insured by the Federal Deposit Insurance Corporation or any other government agency. It is possible to lose money on investments in a Fund.

The Trustees are responsible generally for overseeing the management of the Funds. The Trustees authorize the Funds to enter into service agreements with PIMCO and other service providers in order to provide, and in some cases authorize service providers to procure through other parties, necessary or desirable services on behalf of the Funds. Shareholders are not parties to or third-party beneficiaries of such service agreements. Neither a Fund’s prospectus or Statement of Additional Information (“SAI”), any press release or shareholder report, any contracts filed as exhibits to a Fund’s registration statement, nor any other communications, disclosure documents or regulatory filings (including this report) from or on behalf of a Fund creates a contract between or among any shareholders of a Fund, on the one hand, and the Fund, a service provider to the Fund, and/or the Trustees or officers of the Fund, on the other hand. The Trustees (or the Funds and their officers, service providers or other delegates acting under authority of the Trustees) may amend its most recent prospectus or use a new prospectus or SAI with respect to a Fund, adopt and disclose new or amended policies and other changes in press releases and shareholder reports and/or amend, file and/or issue any other communications, disclosure

documents or regulatory filings, and may amend or enter into any contracts to which a Fund is a party, and interpret the investment objective(s), policies, restrictions and contractual provisions applicable to any Fund, without shareholder input or approval, except in circumstances in which shareholder approval is specifically required by law (such as changes to fundamental investment policies) or where a shareholder approval requirement was specifically disclosed in a Fund’s then-current prospectus, SAI or shareholder report and is otherwise still in effect.

PIMCO has adopted written proxy voting policies and procedures (“Proxy Policy”) as required by Rule under the Investment Advisers Act of 1940, as amended. The Proxy Policy has been adopted by the Funds as the policies and procedures that PIMCO will use when voting proxies on behalf of the Funds. A description of the policies and procedures that PIMCO uses to vote proxies relating to portfolio securities of each Fund, and information about how each Fund voted proxies relating to portfolio securities held during the most recent twelve-month period ended June 30, are available without charge, upon request, by calling the Funds at (844) 33-PIMCO, on the Funds’ website at www.pimco.com, and on the SEC’s website at www.sec.gov.

The Funds file their complete schedules of portfolio holdings with the SEC for the first and third quarters of each fiscal year as an exhibit to their reports on Form N-PORT. The Funds’ Form N-PORT reports are available to the public on the SEC’s website at www.sec.gov and on PIMCO’s website at www.pimco.com, and upon request by calling PIMCO at (844) 33-PIMCO. In August 2024, the SEC adopted amendments to Form N-PORT requiring funds to file Form N-PORT reports on a monthly basis and within 30 days of month end, with each report being made public 60 days after month end. On April 16, 2025, the SEC extended the compliance date for Form N-PORT amendments and fund groups with $1 billion or more in net assets will be required to comply with the amendments for reports filed on or after November 17, 2027.

SEC rules allow the Funds to fulfill their obligation to deliver shareholder reports to investors by providing access to such reports online free of charge and by mailing a notice that the report is electronically available. Investors may elect to receive all future reports in paper free of charge by contacting their financial intermediary or, if invested directly with a Fund, investors can inform the Fund by calling (844) 33-PIMCO. Any election to receive reports in paper will apply to all funds held with the fund complex if invested directly with a Fund or to all funds held in the investor’s account if invested through a financial intermediary. Paper copies of the Funds’ shareholder reports are required to be provided free of charge by the Funds or financial intermediary upon request.

In September 2023, the SEC adopted amendments to Rule 35d-1 under the Investment Company Act of 1940, as amended, the rule governing fund naming conventions (the “Names Rule”). In general, the Names Rule requires funds with certain types of names to adopt a policy to invest at least 80% of their assets in the type of investment suggested by the name. The amendments expand the scope of the current rule to include any term used in a fund name that suggests the fund makes investments that have, or whose issuers have, particular characteristics. Additionally, the amendments modify the circumstances under which a fund may deviate from its 80% investment policy and address the calculation methodology of derivatives instruments for purposes of the rule. Changes to a fund’s calculation methodology for derivatives instruments for purposes of Rule 35d-1 consistent with such amendments and applicable regulatory interpretations thereof will not constitute a change to a fund’s policy adopted pursuant to Rule 35d-1 and will not require notice or shareholder approval. The amendments became effective on December 11, 2023. On March 14, 2025, the SEC extended the compliance date from December 11, 2025 to June 11, 2026 for fund groups with $1 billion or more in net assets and modified the operation of the compliance dates to allow for compliance based on the timing of certain annual disclosure and reporting obligations that are tied to a fund’s fiscal year-end.

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