Form 4 for MQY BLACKROCK MUNIYIELD QUALITY FUND, INC.

Accepted 2026-02-25 00:00:00 ET · period of report 2026-02-23 · accession 0001193125-26-072629 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
	2026-02-25	2026-02-23	MQY	OCONNOR WALTER	Dir	J - Other	—	+92	92	New	—

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-02-23	J	A	92	—	92	D	—	—	(F1) Effective as of February 23, 2026 BlackRock MuniYield Fund (the "Target Fund") was reorganized into BlackRock MuniYield Quality Fund, 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 $11.5454 and the Acquiring Fund reported a NAV per share of $12.5453. The conversion ratio for the Target Fund's common shares was 0.92029684. In the reorganization, Walter O'Connor received 92 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 100 common shares of the Target Fund.