BlackRock Municipal Series Trust has filed its monthly portfolio investments report, known as Form NPORT-P, for the period ending August 31, 2026. This filing is crucial as it showcases the trust's investment activities and adherence to regulatory requirements.

BlackRock Municipal Series Trust, classified as an investment entity, operates under the ticker CIK 0000799113. The trust has been active in filing various reports, with the most recent submissions including Form NPORT-P on October 23, 2026, and multiple Form 497 filings earlier in October.

The recent filing states, "Monthly Portfolio Investments Report on Form N-PORT (Public)." This indicates the trust's ongoing commitment to transparency and regulatory compliance in its investment activities.

This update may affect various stakeholders, including investors and regulatory bodies, as it reflects BlackRock Municipal Series Trust's dedication to maintaining investor confidence through timely disclosures. The filing also serves as a benchmark for competitors in the investment management sector, emphasizing the importance of portfolio transparency.

As for what’s next, the filing does not specify any upcoming actions or events following this report.

Series and Classes Information

The filing also details the series and classes of contracts associated with BlackRock Municipal Series Trust. Notably, it includes the BlackRock Strategic Municipal Opportunities Fund, which is classified under Series S000004053. This series offers various classes such as Investor A1, Institutional, Investor A, Investor C, and Class K, each catering to different types of investors.

Company Information

BlackRock Municipal Series Trust is incorporated in Massachusetts and operates under the Central Index Key (CIK) number 0000799113. The trust's fiscal year ends on October 31, and it has been assigned an Employer Identification Number (EIN) of 226419427. This information is essential for stakeholders to understand the trust's regulatory framework and operational structure.

Mailing and Business Address

The trust's mailing and business address is 100 Bellevue Parkway, Wilmington, DE 19809. This centralized location serves as the point of contact for investors and regulatory inquiries, reinforcing the trust's commitment to accessibility and transparency.

This filing does not include specific details regarding the trust's asset allocation or performance metrics for the reporting period, which could provide further insights into its investment strategy.