Post-Effective Amendment to Registration Statement (Form POS EX)

As filed with the U.S. Securities and Exchange Commission on July 6, 2026

File No. 333-271700

File No. 811-23872

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933		☒
	Pre-Effective Amendment No.	☐
	Post-Effective Amendment No. 284	☒
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940		☒
	Amendment No. 286	☒

Themes ETF Trust

(Exact Name of Registrant as Specified in Charter)

34 East Putnam Avenue, Suite 112

Greenwich, CT 06830

(Address of Principal Executive Offices, Zip Code)

646-206-1788

(Registrant's Telephone Number, including Area Code)

Jose C. Gonzalez

34 East Putnam Avenue, Suite 112

Greenwich, CT 06830

(Name and Address of Agent for Service)

Copy to:

Karen Aspinall, Esq.

Practus, LLP

11300 Tomahawk Creek Parkway, Suite 310

Leawood, Kansas 66211

Approximate Date of Proposed Public Offering: As soon as practical after the effective date of this Registration Statement

It is proposed that this filing will become effective

	☒	immediately upon filing pursuant to paragraph (b)
	☐	on _____________ pursuant to paragraph (b)
	☐	60 days after filing pursuant to paragraph (a)(1)
	☐	on _____________ pursuant to paragraph (a)(1)
	☐	75 days after filing pursuant to paragraph (a)(2)
	☐	on _____________ pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box

☐

this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

EXPLANATORY NOTE

This Post-Effective Amendment No. 284 (the "Post-Effective Amendment") to the Registration Statement of Themes ETF Trust (the "Trust") is being filed solely for the purpose of filing certain exhibits to the Trust's Registration Statement. Accordingly, the Post-Effective Amendment consists only of a facing page, this explanatory note and Part C of the Registration Statement, including the exhibits listed as "filed herewith" below. The Post-Effective Amendment does not modify any other part of the Trust's Registration Statement. Pursuant to Rule 462(d) under the Securities Act of 1933, the Post-Effective Amendment shall become effective immediately upon filing with the U.S. Securities and Exchange Commission. The contents of the Trust's Registration Statement are hereby incorporated by reference.

PART C

OTHER INFORMATION

Item 28. Exhibits:

(a)	Articles of Incorporation

	(1)	Amended Agreement and Declaration of Trust - Incorporated herein by reference to Pre-Effective Amendment No. 1 to the Registrant's registration statement filed on June 30, 2023 on Form N-1A.
	(2)	Certificate of Trust of Themes ETF Trust - Incorporated herein by reference to the Registrant's initial registration statement filed on May 5, 2023 on Form N-1A.

(b)	Bylaws of the Themes ETF Trust - Incorporated herein by reference to the Registrant's initial registration statement filed on May 5, 2023 on Form N-1A.

(c)	Not applicable

(d)

Advisory Agreements

(1)

Investment Advisory Agreement between Themes ETF Trust and Themes Management Company, LLC dated November 3, 2023 - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(i)

Amendment No. 1 to the Investment Advisory Agreement between Themes ETF Trust and Themes Management Company, LLC dated November 3, 2023 - Incorporated herein by reference to Post-Effective Amendment No. 22 to the Registrant's registration statement filed on December 4, 2024 on Form N-1A.

(ii)

Amendment No. 2 to the Investment Advisory Agreement between Themes ETF Trust and Themes Management Company dated March 14, 2025 - Incorporated herein by reference to Post-Effective Amendment No. 26 to the Registrant's registration statement filed on March 14, 2025 on Form N-1A.

(iii)

Amendment No. 3 to the Investment Advisory Agreement between Themes ETF Trust and Themes Management Company dated August 13, 2025 - Incorporated herein by reference to Post-Effective Amendment No. 51 to the Registrant's registration statement filed on August 13, 2025 on Form N-1A.

(iv)

Amendment No. 4 to the Investment Advisory Agreement between Themes ETF Trust and Themes Management Company dated October 8, 2025 - Incorporated herein by reference to Post-Effective Amendment No. 63 to the Registrant's registration statement filed on October 10, 2025 on Form N-1A.

(v)

Amendment No. 5 to the Investment Advisory Agreement between Themes ETF Trust and Themes Management Company dated December 15, 2025 - Incorporated herein by reference to Post-Effective Amendment No. 82 to the Registrant's registration statement filed on December 16, 2025 on Form N-1A.

	(vi)	Amendment No. 6 to the Investment Advisory Agreement between Themes ETF Trust and Themes Management Company dated January 23, 2026 - Incorporated herein by reference to Post-Effective Amendment No. 105 to the Registrant's registration statement filed on February 4, 2026 on Form N-1A.
	(vii)	Amendment No. 7 to the Investment Advisory Agreement between Themes ETF Trust and Themes Management Company dated March 17, 2026 - Incorporated herein by reference to Post-Effective Amendment No. 188 to the Registrant's registration statement filed on May 4, 2026 on Form N-1A.

(viii)

Amendment No. 8 to the Investment Advisory Agreement between Themes ETF Trust and Themes Management Company dated May 29, 2026 - Incorporated herein by reference to Post-Effective Amendment No. 239 to the Registrant's Registration statement filed on June 1, 2026 on Form N-1A.

(e)	Distribution Agreement between Themes ETF Trust and ALPS Distributors, Inc. - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(f)	Not applicable

(g)	ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(1)

First Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registrant's registration statement filed on December 12, 2024 on Form N-1A.

(2)

Second Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registrant's registration statement filed on December 12, 2024 on Form N-1A.

(3)

Third Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 22 to the Registrant's registration statement filed on December 4, 2024 on Form N-1A.

(4)

Fourth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 26 to the Registrant's registration statement filed on March 14, 2025 on Form N-1A.

	(5)	Fifth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 28 to the Registrant's registration statement filed on March 31, 2025 on Form N-1A.
	(6)	Sixth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 29 to the Registrant's registration statement filed on April 25, 2025 on Form N-1A.

(7)

Seventh Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 32 to the Registrant's registration statement filed on May 12, 2025 on Form N-1A.

	(8)	Eighth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 38 to the Registrant's registration statement filed on June 6, 2025 on Form N-1A.
	(9)	Ninth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 42 to the Registrant's registration statement filed on July 17, 2025 on Form N-1A.

(10)

Tenth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 49 to the Registrant's registration statement filed on August 7, 2025 on Form N-1A.

(11)

Eleventh Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 63 to the Registrant's registration statement filed on October 10, 2025 on Form N-1A.

(12)

Twelfth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 72 to the Registrant's registration statement filed on October 31, 2025 on Form N-1A.

(13)

Thirteenth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 75 to the Registrant's registration statement filed on November 14, 2025 on Form N-1A.

	(14)	Fourteenth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 80 to the Registrant's registration statement filed on December 9, 2025 on Form N-1A.
	(15)	Fifteenth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 91 to the Registrant's registration statement filed on January 9, 2026 on Form N-1A.
	(16)	Sixteenth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 105 to the Registrant's registration statement filed on February 4, 2026 on Form N-1A.
	(17)	Seventeenth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 191 to the Registrant's registration statement filed on May 6, 2026 on Form N-1A.
	(18)	Eighteenth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 188 to the Registrant's registration statement filed on May 4, 2026 on Form N-1A.
	(19)	Nineteenth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 206 to the Registrant's registration statement filed on May 12, 2026 on Form N-1A.

(20)

Twentieth Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - Incorporated herein by reference to Post-Effective Amendment No. 239 to the Registrant's registration statement filed on June 1, 2026 on Form N-1A.

	(21)	Twenty-First Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - filed herewith.
	(22)	Twenty-Second Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association - filed herewith.

(h)	Other Material Contracts.

(1)

Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(i)

First Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registrant's registration statement filed on December 12, 2024 on Form N-1A.

(ii)

Second Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registrant's registration statement filed on December 12, 2024 on Form N-1A.

(iii)

Third Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 22 to the Registrant's registration statement filed on December 4, 2024 on Form N-1A.

(iv)

Fourth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 26 to the Registrant's registration statement filed on March 14, 2025 on Form N-1A.

	(v)	Fifth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 28 to the Registrant's registration statement filed on March 31, 2025 on Form N-1A.
	(vi)	Sixth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 29 to the Registrant's registration statement filed on April 25, 2025 on Form N-1A.

	(vii)	Seventh Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 32 to the Registrant's registration statement filed on May 12, 2025 on Form N-1A.
	(viii)	Eighth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 38 to the Registrant's registration statement filed on June 6, 2025 on Form N-1A.
	(ix)	Ninth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 42 to the Registrant's registration statement filed on July 17, 2025 on Form N-1A.

(x)

Tenth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 49 to the Registrant's registration statement filed on August 7, 2025 on Form N-1A.

(xi)

Eleventh Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 63 to the Registrant's registration statement filed on October 10, 2025 on Form N-1A.

(xii)

Twelfth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 72 to the Registrant's registration statement filed on October 31, 2025 on Form N-1A.

(xiii)

Thirteenth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 75 to the Registrant's registration statement filed on November 14, 2025 on Form N-1A.

	(xiv)	Fourteenth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 80 to the Registrant's registration statement filed on December 9, 2025 on Form N-1A.
	(xv)	Fifteenth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 91 to the Registrant's registration statement filed on January 9, 2026 on Form N-1A.
	(xvi)	Sixteenth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 105 to the Registrant's registration statement filed on February 4, 2026 on Form N-1A.
	(xvii)	Seventeenth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 191 to the Registrant's registration statement filed on May 6, 2026 on Form N-1A.

	(xviii)	Eighteenth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 188 to the Registrant's registration statement filed on May 4, 2026 on Form N-1A.
	(xix)	Nineteenth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 206 to the Registrant's registration statement filed on May 12, 2026 on Form N-1A.

(xx)

Twentieth Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 239 to the Registrant's registration statement filed on June 1, 2026 on Form N-1A.

	(xxi)	Twenty-First Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - filed herewith.
	(xxii)	Twenty-Second Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - filed herewith.

(2)

Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(i)

First Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registrant's registration statement filed on December 12, 2024 on Form N-1A.

(ii)

Second Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registrant's registration statement filed on December 12, 2024 on Form N-1A.

(iii)

Third Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 22 to the Registrant's registration statement filed on December 4, 2024 on Form N-1A.

(iv)

Fourth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 26 to the Registrant's registration statement filed on March 14, 2025 on Form N-1A.

	(v)	Fifth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 28 to the Registrant's registration statement filed on March 31, 2025 on Form N-1A.
	(vi)	Sixth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 29 to the Registrant's registration statement filed on April 25, 2025 on Form N-1A.
	(vii)	Seventh Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 32 to the Registrant's registration statement filed on May 12, 2025 on Form N-1A.
	(viii)	Eighth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 38 to the Registrant's registration statement filed on June 6, 2025 on Form N-1A.
	(ix)	Ninth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 42 to the Registrant's registration statement filed on July 17, 2025 on Form N-1A.
	(x)	Tenth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 49 to the Registrant's registration statement filed on August 7, 2025 on Form N-1A.

	(xi)	Eleventh Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 63 to the Registrant's registration statement filed on October 10, 2025 on Form N-1A.
	(xii)	Twelfth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 72 to the Registrant's registration statement filed on October 31, 2025 on Form N-1A.

(xiii)

Thirteenth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 75 to the Registrant's registration statement filed on November 14, 2025 on Form N-1A.

	(xiv)	Fourteenth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 80 to the Registrant's registration statement filed on December 9, 2025 on Form N-1A.
	(xv)	Fifteenth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 91 to the Registrant's registration statement filed on January 9, 2026 on Form N-1A.
	(xvi)	Sixteenth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 105 to the Registrant's registration statement filed on February 4, 2026 on Form N-1A.

	(xvii)	Seventeenth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 191 to the Registrant's registration statement filed on May 6, 2026 on Form N-1A.
	(xviii)	Eighteenth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 188 to the Registrant's registration statement filed on May 4, 2026 on Form N-1A.
	(xix)	Nineteenth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 206 to the Registrant's registration statement filed on May 12, 2026 on Form N-1A.

(xx)

Twentieth Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 239 to the Registrant's registration statement filed on June 1, 2026 on Form N-1A.

	(xxi)	Twenty-First Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - filed herewith.
	(xxii)	Twenty-Second Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - filed herewith.

(3)

ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

	(i)	First Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registrant's registration statement filed on December 12, 2024 on Form N-1A.
	(ii)	Second Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registrant's registration statement filed on December 12, 2024 on Form N-1A.

(iii)

Third Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 22 to the Registrant's registration statement filed on December 4, 2024 on Form N-1A.

	(iv)	Fourth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 26 to the Registrant's registration statement filed on March 14, 2025 on Form N-1A.
	(v)	Fifth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 28 to the Registrant's registration statement filed on March 31, 2025 on Form N-1A.
	(vi)	Sixth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 29 to the Registrant's registration statement filed on April 25, 2025 on Form N-1A.

	(vii)	Seventh Amendment to the ETF Fund Accounting Agreement Servicing between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 32 to the Registrant's registration statement filed on May 12, 2025 on Form N-1A.
	(viii)	Eighth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 38 to the Registrant's registration statement filed on June 6, 2025 on Form N-1A.
	(ix)	Ninth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 42 to the Registrant's registration statement filed on July 17, 2025 on Form N-1A.

(x)

Tenth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 49 to the Registrant's registration statement filed on August 7, 2025 on Form N-1A.

(xi)

Eleventh Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 63 to the Registrant's registration statement filed on October 10, 2025 on Form N-1A.

	(xii)	Twelfth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 72 to the Registrant's registration statement filed on October 31, 2025 on Form N-1A.
	(xiii)	Thirteenth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 75 to the Registrant's registration statement filed on November 14, 2025 on Form N-1A.
	(xiv)	Fourteenth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 80 to the Registrant's registration statement filed on December 9, 2025 on Form N-1A.

(xv)

Fifteenth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 91 to the Registrant's registration statement filed on January 9, 2026 on Form N-1A.

(xvi)

Sixteenth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 105 to the Registrant's registration statement filed on February 4, 2026 on Form N-1A.

	(xvii)	Seventeenth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 191 to the Registrant's registration statement filed on May 6, 2026 on Form N-1A.
	(xviii)	Eighteenth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 188 to the Registrant's registration statement filed on May 4, 2026 on Form N-1A.
	(xix)	Nineteenth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 206 to the Registrant's registration statement filed on May 12, 2026 on Form N-1A.

(xx)

Twentieth Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - Incorporated herein by reference to Post-Effective Amendment No. 239 to the Registrant's registration statement filed on June 1, 2026 on Form N-1A.

	(xxi)	Twenty-First Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - filed herewith.
	(xxii)	Twenty-Second Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services - filed herewith.

	(4)	Index License Agreement between Themes Management Company, LLC and Solactive AG - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.
	(5)	Master Index License Agreement between Themes Management Company, LLC and STOXX Ltd. - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(i)	Not applicable.
(j)	Not applicable.
(k)	Not applicable.

(l)	Initial Capital Agreement - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(m)	Rule 12b-1 Plan - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(n)	Not applicable.

(o)

Reserved.

(p)	Code of Ethics

(1)

Code of Ethics of Themes ETF Trust - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(2)

Code of Ethics of Themes Management Company, LLC. - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

(q)

Other

(1)

Powers of Attorney - Incorporated herein by reference to Pre-Effective Amendment No. 2 to the Registrant's registration statement filed on November 9, 2023 on Form N-1A.

Item 29. Persons Controlled By or Under Common Control with the Registrant:

None.

Item 30. Indemnification:

Under the terms of the Delaware Statutory Trust Act ("DSTA") and the Registrant's Agreement and Declaration of Trust ("Declaration of Trust"), no officer or trustee of the Registrant shall have any liability to the Registrant, its shareholders, or any other party for damages, except to the extent such limitation of liability is precluded by Delaware law, the Declaration of Trust or the By-Laws of the Registrant.

Subject to the standards and restrictions set forth in the Declaration of Trust, DSTA, Section 3817, permits a statutory trust to indemnify and hold harmless any trustee, beneficial owner or other person from and against any and all claims and demands whatsoever. DSTA, Section 3803 protects trustees, officers, managers and other employees, when acting in such capacity, from liability to any person other than the Registrant or beneficial owner for any act, omission or obligation of the Registrant or any trustee thereof, except as otherwise provided in the Declaration of Trust.

The Declaration of Trust provides that any person who is or was a Trustee, officer, employee or other agent, including the underwriter, of such Trust shall be liable to the Trust and its shareholders only for (1) any act or omission that constitutes a bad faith violation of the implied contractual covenant of good faith and fair dealing, or (2) the person's own willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of such person (such conduct referred to herein as Disqualifying Conduct) and for nothing else. Except in these instances and to the fullest extent that limitations of liability of agents are permitted by the DSTA, these Agents (as defined in the Declaration of Trust) shall not be responsible or liable for any act or omission of any other Agent of the Trust or any investment adviser or principal underwriter. Moreover, except and to the extent provided in these instances, none of these Agents, when acting in their respective capacity as such, shall be personally liable to any other person, other than such Trust or its shareholders, for any act, omission or obligation of the Trust or any trustee thereof.

The Trust shall indemnify, out of its property, to the fullest extent permitted under applicable law, any of the persons who was or is a party or is threatened to be made a party to any Proceeding (as defined in the Declaration of Trust) because the person is or was an Agent of such Trust. These persons shall be indemnified against any Expenses (as defined in the Declaration of Trust), judgments, fines, settlements and other amounts actually and reasonably incurred in connection with the Proceeding if the person acted in good faith or, in the case of a criminal proceeding, had no reasonable cause to believe that the conduct was unlawful. The termination of any Proceeding by judgment, order, settlement, conviction or plea of nolo contendere or its equivalent shall not in itself create a presumption that the person did not act in good faith or that the person had reasonable cause to believe that the person's conduct was unlawful. There shall nonetheless be no indemnification for a person's own Disqualifying Conduct.

Insofar as indemnification for liabilities arising under the Securities Act of 1933, as amended, may be permitted to Trustees, officers and controlling persons of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a Trustee, officer or controlling person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such Trustee, officer or controlling person in connection with securities being registered, the Registrant may be required, unless in the opinion of its counsel the matter has been settled by controlling precedent, to submit to a court or appropriate jurisdiction the question whether such indemnification is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.

Item 31. Business and Other Connections of Investment Adviser

This Item incorporates by reference the investment adviser's Uniform Application for Investment Adviser Registration ("Form ADV") on file with the SEC, as listed below. The Form ADV may be obtained, free of charge, at the SEC's website at www.adviserinfo.sec.gov. Additional information as to any other business, profession, vocation or employment of a substantial nature engaged in by each officer and director of the investment adviser is included in Form ADV is incorporated herein by reference. The investment adviser's SEC registration number is 801-128358.

Item 32. Principal Underwriters

(1)

ALPS Distributors, Inc. acts as the distributor for the Registrant and the following investment companies:

1290 Funds

1WS Credit Income Fund

Aberdeen Income Credit Strategies Fund

abrdn ETFs

abrdn Funds

abrdn Global Dynamic Dividend Fund

abrdn Global Premier Properties Fund

abrdn Income Credit Strategies Fund

Accordant ODCE Index Fund

Alpha Alternative Assets Fund

ALPS Series Trust

Alternative Credit Income Fund

Apollo Diversified Credit Fund

Apollo Diversified Real Estate Fund

AQR Funds

Arrowmark Financial Corp.

Axonic Alternative Income Fund

Axonic Funds

BBH Trust

Bluerock High Income Institutional Credit Fund

Bluerock Total Income+ Real Estate Fund

Bridge Builder Trust

Cambria ETF Trust

CION Ares Diversified Credit Fund

CION Grosvenor Infrastructure Fund

Columbia ETF Trust

Columbia ETF Trust I

Columbia ETF Trust II

Columbia Seligman Premium Technology Growth Fund, Inc.

CRM Mutual Fund Trust

DBX ETF Trust

Diameter Dynamic Credit Fund

Eagle Point Defensive Income Trust

Eagle Point Enhanced Income Trust

EA Series Trust (Cambria Series)

ETF Series Solutions (Vident Series)

Financial Investors Trust

Firsthand Funds

FS Credit Income Fund

FS Credit Opportunities Corp.

FS MVP Private Markets Fund

Gemcorp Commodities Alternative Products Fund

Goehring & Rozencwajg Investment Funds

Goldman Sachs ETF Trust

Goldman Sachs ETF Trust II

Graniteshares ETF Trust

Hartford Funds Exchange-Traded Trust

Heartland Group, Inc.

Investment Managers Series Trust II (AXS-Advised Funds)

Investment Managers Series Trust II (Alternative Access-Advised Fund)

Janus Detroit Street Trust

Lattice Strategies Trust

Litman Gregory Funds Trust

Longleaf Partners Funds Trust

Manager Directed Portfolios (Spyglass Growth Fund)

Meridian Fund, Inc.

Natixis ETF Trust

Natixis ETF Trust II

New York Life Investments Active ETF Trust

New York Life Investments ETF Trust

Opportunistic Credit Interval Fund

PRIMECAP Odyssey Funds

Principal Exchange-Traded Funds

RiverNorth Funds

RiverNorth Opportunities Fund, Inc.

RiverNorth/DoubleLine Strategic Opportunity Fund, Inc.

RiverNorth Opportunistic Municipal Income Fund, Inc.

RiverNorth Managed Duration Municipal Income Fund, Inc.

RiverNorth Flexible Municipal Income Fund, Inc.

RiverNorth Capital and Income Fund, Inc.

RiverNorth Flexible Municipal Income Fund II, Inc.

RiverNorth Managed Duration Municipal Income Fund II, Inc.

SPDR Dow Jones Industrial Average ETF Trust

SPDR S&P 500 ETF Trust

SPDR S&P MidCap 400 ETF Trust

Sphinx Opportunity Fund II

Sprott Funds Trust

The Arbitrage Funds

Themes ETF Trust

Tidal Trust II (Cambria Series)

Thornburg ETF Trust

Thrivent ETF Trust

Trust for Professional Managers (PT Asset Management Series)

USCF ETF Trust

USVC Venture Capital Access Fund

Valkyrie ETF Trust II

Wasatch Funds

Wilmington Funds

X-Square Balanced Fund

X-Square Series Trust

(2)

To the best of Registrant's knowledge, the directors and executive officers of ALPS Distributors, Inc., are as follows:

Name*	Position with Underwriter	Positions with Fund
Stephen J. Kyllo	President, Chief Operating Officer, Director, Chief Compliance Officer	None
Brian Schell**	Vice President & Treasurer	None
Eric Parsons	Vice President, Controller and Assistant Treasurer	None
Jason White***	Secretary	None
Richard C. Noyes	Senior Vice President, General Counsel, Assistant Secretary	None
Eric Theroff^	Assistant Secretary	None
Adam Girard^^	Tax Officer	None
Liza Price	Vice President, Managing Counsel	None
Jed Stahl	Vice President, Managing Counsel	None
James Stegall	Vice President	None
Hilary Quinn	Vice President	None

	*	Except as otherwise noted, the principal business address for each of the above directors and executive officers is 1290 Broadway, Suite 1000, Denver, Colorado 80203.
	**	The principal business address for Mr. Schell is 100 South Wacker Drive, 19th Floor, Chicago, IL 60606.
	***	The principal business address for Mr. White is 4 Times Square, New York, NY 10036.
	^	The principal business address for Mr. Theroff is 1055 Broadway Boulevard, Kansas City, MO 64105.
	^^	The principal business address for Mr. Girard is 80 Lamberton Road, Windsor, CT 06095.

Item 33. Location of Accounts and Records

The books, accounts and other documents required by Section 31(a) under the Investment Company Act of 1940, as amended, and the rules promulgated thereunder will be maintained at the offices of:

Records Relating to:	Are located at:
Registrant's Transfer Agent, Fund Administrator and Fund Accountant	U.S. Bancorp Fund Services, LLC 615 East Michigan Street Milwaukee, WI 53202
Registrant's Custodian	U.S. Bank National Association 1555 North Rivercenter Drive, Suite 302 Milwaukee, WI 53212
Registrant's Investment Adviser	Themes Management Company, LLC 34 East Putnam Avenue, Suite 112 Greenwich, Connecticut 06830
Registrant's Distributor	ALPS Distributors, Inc. 1290 Broadway, Suite 1000 Denver, Colorado 80203

Item 34. Management Services:

None.

Item 35. Undertakings:

None.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 (the "Securities Act") and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Post-Effective Amendment to its Registration Statement on Form N-1A under Rule 485(b) under the Securities Act and has duly caused this Post-Effective Amendment No. 284 to its Registration Statement on Form N-1A to be signed on its behalf by the undersigned, duly authorized, in the City of Greenwich and State of Connecticut on the 6^th day of July, 2026.

	THEMES ETF TRUST
	By:	/s/ Jose C. Gonzalez
		Jose C. Gonzalez
		Trustee and President (Principal Executive Officer)

Pursuant to the requirements of the Securities Act, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

Signature		Title		Date
/s/ Jose C. Gonzalez		Trustee and President		July 6, 2026
Jose C. Gonzalez		(Principal Executive Officer)
/s/ Dobromir Kamburov		Treasurer		July 6, 2026
Dobromir Kamburov		(Principal Financial Officer and Principal Accounting Officer)
Sanjay R. Bharwani*		Trustee		July 6, 2026
Sanjay R. Bharwani
Neil Fleming*		Trustee		July 6, 2026
Neil Fleming
Tracy N. Packwood*		Trustee		July 6, 2026
Tracy N. Packwood

*By:	/s/ Jose C. Gonzalez
	Jose C. Gonzalez
	Attorney-In-Fact pursuant to powers of attorney filed with Pre-Effective Amendment No. 2 to the Registrant's registration statement on November 9, 2023

EXHIBIT INDEX

Exhibit No.		Exhibit Description
(g)(21)		Twenty-First Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association
(g)(22)		Twenty-Second Amendment to the ETF Custody Agreement between Themes ETF Trust and U.S. Bank National Association
(h)(1)(xxi)		Twenty-First Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services
(h)(1)(xxii)		Twenty-Second Amendment to the Transfer Agent Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services
(h)(2)(xxi)		Twenty-First Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services
(h)(2)(xxii)		Twenty-Second Amendment to the Fund Administration Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services
(h)(3)(xxi)		Twenty-First Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services
(h)(3)(xxii)		Twenty-Second Amendment to the ETF Fund Accounting Servicing Agreement between Themes ETF Trust and U.S. Bancorp Fund Services, LLC d/b/a U.S. Bank Global Fund Services