BlackRock MuniYield Quality Fund III, Inc

DEFA14A 1 d21223ddefa14a.htm BLACKROCK MUNIYIELD QUALITY FUND III, INC BlackRock MuniYield Quality Fund III, Inc

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐


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☐ Preliminary Proxy Statement		☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Pursuant to § 240.14a-12

BLACKROCK MUNIYIELD QUALITY FUND III, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other than the Registrant)

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No fee required.

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Fee paid previously with preliminary materials.

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Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

BLACKROCK MUNIVEST FUND II, INC.

BLACKROCK MUNIYIELD MICHIGAN QUALITY FUND, INC.

BLACKROCK MUNIVEST FUND, INC.

BLACKROCK MUNIYIELD QUALITY FUND III, INC.

Important Information Regarding the Proxy Statement, dated September 8, 2025 for BlackRock MuniVest Fund II, Inc. (“MVT”), BlackRock MuniYield Michigan Quality Fund, Inc. (“MIY”), BlackRock MuniVest Fund, Inc. (“MVF”) and BlackRock MuniYield Quality Fund III, Inc. (“MYI” or the “Acquiring Fund”)

The Section of the Proxy Statement entitled “Voting Information and Requirements – Voting Requirement for Proposal 2: The Issuance of Acquiring Fund Common Shares” is revised and restated to provide the following information:

Voting Requirement for Proposal 2: The Issuance of Acquiring Fund Common Shares


Proposals		Required Approval of Shareholders
Proposal 2(A): The common shareholders and VRDP Holders of the Acquiring Fund are being asked to vote as a single class on a proposal to approve the MVT Issuance.		Majority of votes entitled to be cast present at the Special Meeting or represented by proxy

Proposal 2(B): The common shareholders and VRDP Holders of the Acquiring Fund are being asked to vote as a single class on a proposal to approve the MIY Issuance.		Majority of votes entitled to be cast present at the Special Meeting or represented by proxy

Proposal 2(C): The common shareholders and VRDP Holders of the Acquiring Fund are being asked to vote as a single class on a proposal to approve the MVF Issuance.		Majority of votes entitled to be cast present at the Special Meeting or represented by proxy.

All other references in the Proxy Statement and the accompanying exhibits referencing the vote requirement for shareholders to approve Proposals 2(A), 2(B) and 2(C) are revised and restated to reflect the vote requirements stated in the table above.

SEC Form DEFA14A filed by Blackrock MuniYield Quality Fund III Inc