Nuveen DIAX insider Castro files Form 3

Nuveen Dow 30sm Dynamic Overwrite Fund filed an initial insider ownership report for Joseph Castro, who serves as EVP, Chief Risk & Compliance.

Accepted by SEC EDGAR 02/23/2026 - 11:29 AM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Nuveen Dow 30sm Dynamic Overwrite Fund filed an initial insider ownership report for Joseph Castro, who serves as EVP, Chief Risk & Compliance. This Form 3 establishes his status as an officer subject to insider reporting rules. The filing does not report any buy or sell transactions.

FAQ

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

What does the Form 3 filing for Nuveen Dow 30sm Dynamic Overwrite Fund (DIAX) show?

The Form 3 filing records Joseph Castro, EVP, Chief Risk & Compliance, as an insider of Nuveen Dow 30sm Dynamic Overwrite Fund. It establishes his reporting status but does not list any stock purchase or sale transactions in this submission.

Who is the reporting person in the DIAX Form 3 filing?

The reporting person is Joseph Castro, who serves as EVP, Chief Risk & Compliance of Nuveen Dow 30sm Dynamic Overwrite Fund. His role makes him a reporting insider subject to ongoing ownership and transaction disclosure requirements under SEC rules.

Does the DIAX Form 3 for Joseph Castro show any share transactions?

No, the DIAX Form 3 shows no reported share transactions. The transaction summary indicates zero buys, zero sells, and no other transaction types, meaning this filing only establishes insider status rather than documenting trading activity.

What is the purpose of Joseph Castro’s Form 3 for Nuveen Dow 30sm Dynamic Overwrite Fund?

The purpose is to file an initial statement of beneficial ownership for an officer of Nuveen Dow 30sm Dynamic Overwrite Fund. It formally identifies Joseph Castro as an insider whose future trades in DIAX must be reported on subsequent SEC forms.

Does the DIAX Form 3 include any special footnote disclosures?

The Form 3 includes a footnote section, but the available data does not describe any additional ownership structures or authority limitations. No alternative entities or special voting or investment power arrangements are detailed in the provided information.

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^*

Castro Joseph

(Last) (First) (Middle)

C/O NUVEEN INVESTMENTS

333 W. WACKER DRIVE

(Street)

CHICAGO IL 60606

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/16/2025

3. Issuer Name and Ticker or Trading Symbol
Nuveen Dow 30sm Dynamic Overwrite Fund [ DIAX ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Risk & Compliance

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

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:

castropoa.txt

No securities are beneficially owned.

	Mark L. Winget/ Signed Under Power of Attorney	10/16/2025
	** 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.