BlackRock MuniAssets (NYSE: MUA) discloses CCO Charles Park’s Form 3 status

Rhea-AI Filing Summary

BlackRock MuniAssets Fund, Inc. filed an initial insider report for Charles Park, who is identified as the fund’s Chief Compliance Officer. The filing reports no securities transactions or holdings. Remarks note he served as Chief Compliance Officer from June 6, 2014 to June 30, 2023 and was reappointed effective August 1, 2026.

Key Figures

Reported buy transactions: 0 shares Reported sell transactions: 0 shares Reported holdings entries: 0

3 metrics

Reported buy transactions 0 shares Buy transactions reported for Charles Park in this Form 3

Reported sell transactions 0 shares Sell transactions reported for Charles Park in this Form 3

Reported holdings entries 0 Number of securities holding entries reported for Charles Park

Key Terms

Chief Compliance Officer, Reporting Person, ten percent owner

3 terms

Chief Compliance Officer regulatory

"The Reporting Person previously served 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"

ten percent owner regulatory

"is_ten_percent_owner": 0"

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FAQ

What does the BlackRock MuniAssets Fund (MUA) Form 3 say about Charles Park?

The Form 3 identifies Charles Park as Chief Compliance Officer of BlackRock MuniAssets Fund. It reports no securities transactions or holdings and notes his prior 2014–2023 service and his reappointment as Chief Compliance Officer effective August 1, 2026.

Does Charles Park report owning any MUA shares in this Form 3 filing?

No. The Form 3 for Charles Park shows no reported securities transactions or holdings. Summary data list zero buy and sell transactions and no holding entries, indicating no beneficial ownership positions are being reported in this filing.

What role does Charles Park hold at BlackRock MuniAssets Fund (MUA)?

Charles Park is listed as Chief Compliance Officer of BlackRock MuniAssets Fund. Remarks explain he previously served in this role from June 6, 2014 to June 30, 2023 and was reappointed to the same position effective August 1, 2026.

What historical service dates for Charles Park are disclosed for MUA?

The filing states that Charles Park served as Chief Compliance Officer from June 6, 2014 to June 30, 2023. It also notes that he was reappointed to this role effective August 1, 2026, indicating a break between mid‑2023 and mid‑2026.

Does the MUA Form 3 mention any Rule 10b5-1 trading plan for Charles Park?

No. The Form 3 for Charles Park reflects no reported trades and no 10b5-1 plan disclosure. Transaction counts for buys, sells, exercises, and gifts are all zero, and the trading-plan checkbox information is not marked as applicable.

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 MUNIASSETS FUND, INC. [ MUA ]

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)