Company: MYI
Filing Date: 2025-09-05
Form Type: 424B3
Source: 0001193125-25-196285
Chunk: 273

Company: BLACKROCK MUNIYIELD QUALITY FUND III, INC.
Filing Date: 2025-09-05
Form: 424B3
Chunk 273
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 MVT and the Acquiring Fund that request a sale of shares are subject to a $2.50 sales fee and a $0.15 per share sold fee. Per share
fees include any applicable brokerage commissions the Reinvestment Plan Agent is required to pay. All correspondence concerning the Reinvestment Plan should be directed to Computershare Trust Company, N.A. through the internet at
computershare.com/blackrock, or in writing to Computershare, P.O. Box 43006, Providence, RI 02940-3078, Telephone: (800) 699-1236. Overnight correspondence should be directed to the Reinvestment Plan
Agent at Computershare, 150 Royall Street, Suite 101, Canton, MA 02021.

162

CERTAIN PROVISIONS OF THE CHARTERS AND BYLAWS Certain Provisions in the Charter and Bylaws of MVT MVT’s charter includes provisions that could have the effect of limiting the ability of other entities or persons to acquire control of the Fund or to change the composition of its Board and could have the effect of depriving common shareholders of an opportunity to sell their shares at a premium over prevailing market prices by discouraging a third-party from seeking to obtain control of MVT. A Director may be removed from office with or without cause but only by vote of the holders of at least 66 2/3% of the shares entitled to vote in an election to fill that directorship. A director elected by all of the holders of capital stock may be removed only by action of such holders, and a director elected by the holders of preferred stock may be removed only by action of the holders of preferred stock. In addition, the charter requires the favorable vote of the holders of at least 66 2/3% of MVT’s shares to approve, adopt or authorize various actions, including the following:

| • |     | a merger or consolidation or statutory share exchange of MVT with any other corporation; |

| • |     | a sale of all or substantially all of MVT’s assets (other than in the regular course of MVT’s 
 investment activities); or                                                                    |

| • |     | a liquidation or dissolution of MVT; |

unless such action has been approved, adopted or authorized by the affirmative vote of at least two-thirdsof the total number of Directors fixed in accordance with the Bylaws, in which case the affirmative vote of a majority of MVT’s shares of capital stock is required. The