Invesco Unit Trusts, Municipal Series 1266, has filed a certification with the U.S. Securities and Exchange Commission (SEC) confirming that its recent post-effective amendment does not differ from its previous filings. This filing, dated October 28, 2026, is crucial as it ensures compliance with SEC regulations and maintains investor confidence in the trust's operations.

The filing states that the most recent post-effective amendment to the registration statement on Form S-6 was electronically filed with the SEC on October 22, 2026. This certification is made in accordance with Rule 497(j) under the Securities Act of 1933, which allows for certain filings to be certified as unchanged from previous submissions.

Background

Invesco Unit Trusts, Municipal Series 1266, is part of Invesco Capital Markets, Inc. The trust is classified under the SEC's category for investment companies. It operates in the municipal investment sector, providing investors with opportunities in municipal bonds and other related securities. The trust's recent filings include a post-effective amendment and a certification of compliance, reflecting its ongoing regulatory obligations.

What the Filing Says

The filing indicates, "this letter serves to certify that the most recent post-effective amendment to the registration statement on Form S-6 for the above captioned Trust does not differ from that which would have been filed pursuant to Rule 497(b) of the Securities Act." This statement reinforces the trust's commitment to transparency and regulatory compliance.

Impact

This update may affect investors and stakeholders in the municipal investment sector, as it demonstrates Invesco's adherence to regulatory standards. By confirming the consistency of its filings, Invesco aims to bolster investor confidence and ensure that its operations align with SEC requirements.

What's Next

The filing does not say what happens next.