Michael Kalinoski - 23 Feb 2026 Form 4 Insider Report for BLACKROCK MUNIYIELD QUALITY FUND III, INC. (MYI)

Role: Director
Signature: /s/ Gladys Chang as Attorney-in-Fact
Issuer symbol: MYI
Transactions as of: 23 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 25 Feb 2026, 19:37:05 UTC
Previous filing: 11 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
KALINOSKI MICHAEL	Director	50 HUDSON YARDS, NEW YORK	/s/ Gladys Chang as Attorney-in-Fact	25 Feb 2026	0001137436

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MYI	Common Stock	Other		+1	+3.5%		30	23 Feb 2026	Direct	F1
transaction	MYI	Common Stock	Other		+3,085	+10429%		3,115	23 Feb 2026	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Effective as of February 23, 2026, BlackRock MuniVest Fund, Inc. (the "Target Fund") was reorganized into BlackRock MuniYield Quality Fund III, Inc. (the "Acquiring Fund"). In the reorganization, common shareholders of the Target Fund received common shares of the Acquiring Fund having a value equal to the aggregate NAV of the Target Fund common shares surrendered as determined at the close of business on February 20, 2026, less the costs of the reorganization. As of February 20, 2026, the Target Fund reported a NAV per share of $7.5919 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.63218946. In the reorganization, Michael Kalinoski received 1 common share (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 2.2247 common shares of the Target Fund.
F2	Effective as of February 23, 2026 BlackRock MuniVest Fund II, Inc. (the "Target Fund") was reorganized into BlackRock MuniYield Quality Fund III, Inc. (the "Acquiring Fund"). In the reorganization, common shareholders of the Target Fund received common shares of the Acquiring Fund having a value equal to the aggregate NAV of the Target Fund common shares surrendered as determined at the close of business on February 20, 2026, less the costs of the reorganization. As of February 20, 2026, the Target Fund reported a NAV per share of $11.7926 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.98198836. In the reorganization, Michael Kalinoski received 3085 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 3141.7166 common shares of the Target Fund.

Content

Effective as of February 23, 2026, BlackRock MuniVest Fund, Inc. (the "Target Fund") was reorganized into BlackRock MuniYield Quality Fund III, Inc. (the "Acquiring Fund"). In the reorganization, common shareholders of the Target Fund received common shares of the Acquiring Fund having a value equal to the aggregate NAV of the Target Fund common shares surrendered as determined at the close of business on February 20, 2026, less the costs of the reorganization. As of February 20, 2026, the Target Fund reported a NAV per share of $7.5919 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.63218946. In the reorganization, Michael Kalinoski received 1 common share (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 2.2247 common shares of the Target Fund.

Effective as of February 23, 2026 BlackRock MuniVest Fund II, Inc. (the "Target Fund") was reorganized into BlackRock MuniYield Quality Fund III, Inc. (the "Acquiring Fund"). In the reorganization, common shareholders of the Target Fund received common shares of the Acquiring Fund having a value equal to the aggregate NAV of the Target Fund common shares surrendered as determined at the close of business on February 20, 2026, less the costs of the reorganization. As of February 20, 2026, the Target Fund reported a NAV per share of $11.7926 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.98198836. In the reorganization, Michael Kalinoski received 3085 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 3141.7166 common shares of the Target Fund.