Nuveen S&P 500 Dynamic Overwrite (NYSE: SPXX) insider files Form 3

Rhea-AI Filing Summary

Nuveen S&P 500 Dynamic Overwrite Fund officer Joseph Castro filed an initial Form 3 as EVP, Chief Risk & Compliance. This filing establishes his status as an insider of the fund. The filing does not report any share purchases, sales, or other transactions.

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

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1. Name and Address of Reporting Person^*

Castro Joseph

(Last) (First) (Middle)

333 W. WACKER DRIVE

SUITE 2900

(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 S&P 500 Dynamic Overwrite Fund [ SPXX ]

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.
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FAQ

What does the Form 3 for Nuveen S&P 500 Dynamic Overwrite Fund (SPXX) show?

The Form 3 shows that Joseph Castro is an insider of Nuveen S&P 500 Dynamic Overwrite Fund as EVP, Chief Risk & Compliance. It is an initial ownership report and does not list any share purchases, sales, or other equity transactions.

Did Joseph Castro buy or sell SPXX shares in this Form 3 filing?

No, this Form 3 does not show any share purchases or sales by Joseph Castro. The transaction summary lists zero buys, zero sells, and no other equity transactions, indicating this filing is purely an initial insider ownership registration.

Who is the insider named in SPXX’s latest Form 3 filing?

The insider is Joseph Castro, who serves as EVP, Chief Risk & Compliance for Nuveen S&P 500 Dynamic Overwrite Fund. The filing identifies him as an officer but does not disclose any current transactions in the fund’s shares or derivatives.

Why is this Form 3 for Nuveen S&P 500 Dynamic Overwrite Fund important to investors?

This Form 3 formally identifies Joseph Castro as an officer and reporting insider of the fund. While it contains no transactions, it signals that future trades in SPXX by him must be reported, improving transparency around insider activity for investors.

Does the SPXX Form 3 disclose any complex ownership structures or footnotes?

The Form 3 includes a blank footnote section and no special ownership comments. There are no indications of indirect holdings, trusts, or entities, and no disclaimers of beneficial ownership, simplifying interpretation for investors reviewing insider status.