BlackRock Muniyield Quality Fund III names CCO

BLACKROCK MUNIYIELD QUALITY FUND III, INC. filed an insider ownership report for Charles Park, who serves as Chief Compliance Officer.

Accepted by SEC EDGAR 08/05/2026 - 06:01 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

BLACKROCK MUNIYIELD QUALITY FUND III, INC. filed an insider ownership report for Charles Park, who serves as Chief Compliance Officer. Park previously held this role from June 6, 2014 through June 30, 2023 and has been reappointed effective August 1, 2026. The filing reports no insider transactions or derivative positions.

Key Figures

Prior CCO service start: June 6, 2014 Prior CCO service end: June 30, 2023 Reappointment effective date: August 1, 2026 +2 more

5 metrics

Prior CCO service start June 6, 2014 Date Charles Park began his earlier Chief Compliance Officer tenure

Prior CCO service end June 30, 2023 Date Charles Park’s earlier Chief Compliance Officer service ended

Reappointment effective date August 1, 2026 Effective date of Charles Park’s reappointment as Chief Compliance Officer

Reported buy transactions 0 Number of buy transactions in the insider transaction summary

Reported sell transactions 0 Number of sell transactions in the insider transaction summary

Key Terms

Chief Compliance Officer, Reporting Person, Issuer

3 terms

Chief Compliance Officer regulatory

"The Reporting Person was reappointed as Chief Compliance Officer of the Issuer"

The chief compliance officer is the senior executive responsible for making sure a company follows laws, industry rules and its own internal policies, acting like a safety inspector for legal and ethical risks. Investors care because effective compliance reduces the chance of fines, lawsuits, operational disruption and reputational damage, so the officer’s competence and independence can materially affect future profits and risk exposure.

Reporting Person regulatory

"The Reporting Person previously served as Chief Compliance Officer of the Issuer"

Issuer regulatory

"Chief Compliance Officer of the Issuer from June 6, 2014 to June 30, 2023"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the MYI filing say about Charles Park’s role?

Charles Park is identified as the Chief Compliance Officer of BLACKROCK MUNIYIELD QUALITY FUND III, INC. He previously served in this role and has been reappointed effective August 1, 2026, according to the insider ownership report.

When did Charles Park previously serve as Chief Compliance Officer for MYI?

Charles Park previously served as Chief Compliance Officer from June 6, 2014 to June 30, 2023. The filing notes this earlier tenure to clarify his history with the issuer’s compliance function before his reappointment.

When is Charles Park’s reappointment as Chief Compliance Officer of MYI effective?

The reappointment of Charles Park as Chief Compliance Officer is effective August 1, 2026. This effective date indicates when he resumes the compliance leadership role at BLACKROCK MUNIYIELD QUALITY FUND III, INC.

Does the MYI insider filing report any stock transactions by Charles Park?

No, the insider filing for MYI reports no buy, sell, or derivative transactions by Charles Park. The transaction summary shows zero transactions and no reported share activity in the period covered.

Does the MYI filing indicate any derivative positions for Charles Park?

No, the filing’s derivative summary shows no derivative positions for Charles Park. There are zero derivative transactions and no remaining derivative holdings reported in connection with this insider report.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Park Charles

(Last) (First) (Middle)

50 HUDSON YARDS

(Street)

NEW YORK NEW YORK 10001

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
08/01/2026

3. Issuer Name and Ticker or Trading Symbol
BLACKROCK MUNIYIELD QUALITY FUND III, INC. [ MYI ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Compliance Officer

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

The Reporting Person previously served as Chief Compliance Officer of the Issuer from June 6, 2014 to June 30, 2023. The Reporting Person was reappointed as Chief Compliance Officer of the Issuer effective August 1, 2026.

No securities are beneficially owned.

	/s/ Gladys Chang as Attorney-in-Fact	08/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)