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21Shares Sui ETF adopts FTSE index, rebrands fund

21Shares Sui ETF (TSUI), now renamed 21Shares Sui Staking ETF, reports several structural and contractual changes.

(Moderate)
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

21Shares Sui ETF (TSUI), now renamed 21Shares Sui Staking ETF, reports several structural and contractual changes. On August 20, 2026, its sponsor, 21Shares US LLC, entered into a Benchmark Licensing Agreement with FTSE International Limited to use the FTSE Sui Index as the fund’s pricing benchmark.

Beginning August 27, 2026, the Trust will value its shares and calculate net asset value by reference to the FTSE Sui Index instead of the CME CF Sui‑Dollar Reference Rate – New York Variant. The FTSE license has an initial one-year term and will automatically renew for successive one‑year periods unless terminated under its terms.

On August 25, 2026, a Certificate of Amendment was filed in Delaware to change the Trust’s name from “21Shares Sui ETF” to “21Shares Sui Staking ETF.” On August 26, 2026, the Trust and the Sponsor also amended the Sponsor Agreement so that the Sponsor Fee is paid at least quarterly in arrears instead of weekly, in each case payable in SUI, and entered into a Second Amended and Restated Trust Agreement to reflect the new benchmark, fee timing, name change, and other technical revisions.

Positive

  • None.

Negative

  • None.
Item 1.01 Entry into a Material Definitive Agreement Business
The company signed a significant contract such as a merger agreement, credit facility, or major partnership.
Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year Governance
The company amended its charter documents, bylaws, or changed its fiscal year.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, or exhibit attachments filed with this report.
Benchmark effective date August 27, 2026 Date when the Trust begins valuing shares and NAV using the FTSE Sui Index
Benchmark Licensing Agreement date August 20, 2026 Date 21Shares US LLC entered into the Benchmark Licensing Agreement with FTSE
Initial term of FTSE license one-year initial term License automatically renews for successive one-year periods unless terminated
Certificate of Amendment filing date August 25, 2026 Filed in Delaware to change the Trust’s name to 21Shares Sui Staking ETF
Sponsor Agreement amendment date August 26, 2026 Amendment No. 1 changed Sponsor Fee timing from weekly to at least quarterly in arrears
Sponsor Fee payment frequency at least quarterly in arrears Revised timing of Sponsor Fee payments, payable in SUI
Benchmark Licensing Agreement financial
"entered into a licensing agreement (the “Benchmark Licensing Agreement”) with FTSE"
Pricing Benchmark financial
"use the FTSE Sui Index (the “Pricing Benchmark”) to develop, create, calculate"
Shares of Beneficial Interest financial
"Shares of Beneficial Interest of 21Shares Sui Staking ETF"
Sponsor Fee financial
"change the timing of payment of the sponsor fee the Sponsor receives"
Second Amended and Restated Trust Agreement regulatory
"entered into a Second Amended and Restated Trust Agreement (the “Trust Agreement”)"
Certificate of Amendment regulatory
"caused a Certificate of Amendment to the Trust’s Certificate of Trust to be filed"
A certificate of amendment is an official filing that updates a company’s founding documents—its legal “rulebook” that sets share structure, voting rules, name and basic purpose. Think of it like changing the blueprint of a building: small changes are paperwork, big ones can alter who owns how much and who controls decisions. Investors watch these filings because they can affect share counts, voting power, dilution and company value.

FAQ

What benchmark index will 21Shares Sui Staking ETF (TSUI) use going forward?

The ETF will use the FTSE Sui Index as its pricing benchmark. Starting August 27, 2026, net asset value and share valuation will reference this index instead of the CME CF Sui‑Dollar Reference Rate – New York Variant.

When does the new FTSE benchmark take effect for TSUI?

The Trust will begin valuing its shares and calculating net asset value using the FTSE Sui Index on August 27, 2026, replacing the CME CF Sui‑Dollar Reference Rate – New York Variant from that date.

What name change did 21Shares Sui ETF (TSUI) implement?

The Trust changed its name from “21Shares Sui ETF” to “21Shares Sui Staking ETF”. A Certificate of Amendment to the Trust’s Certificate of Trust was filed in Delaware on August 25, 2026 to effect this change.

How did the Sponsor Fee payment terms change for TSUI?

The Sponsor Fee, payable in SUI, will now be paid at least quarterly in arrears instead of weekly in arrears. This change was made through Amendment No. 1 to the Sponsor Agreement dated August 26, 2026.

Who is providing the new pricing benchmark for 21Shares Sui Staking ETF (TSUI)?

The pricing benchmark is provided by FTSE International Limited, a company incorporated in England with principal offices in London. FTSE will license the FTSE Sui Index to the Sponsor, the Trust, and their affiliates under a non‑exclusive, worldwide license.

What is the term of the benchmark licensing agreement for TSUI?

The Benchmark Licensing Agreement with FTSE has an initial one-year term and will automatically renew for successive one-year periods, unless terminated pursuant to its terms.

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

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false --12-31 0002061626 0002061626 2026-08-20 2026-08-20 iso4217:USD xbrli:shares iso4217:USD xbrli:shares

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

 

Date of Report (Date of earliest event reported): August 20, 2026

 

21SHARES SUI STAKING ETF

(Exact name of registrant as specified in its charter)

 

Delaware   001-43145   33-6749416
(State or other jurisdiction
of incorporation)
  (Commission File Number)   (IRS Employer
Identification No.)

 

158 W. 27th Street    
New York, New York   10001
(Address of principal executive offices)   (zip code)

 

Registrant’s telephone number, including area code: (646) 370-6016

 

21Shares Sui ETF

(Former Name or Former Address, if Changed Since Last Report.)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which registered
Shares of Beneficial Interest of 21Shares Sui Staking ETF   TSUI   The Nasdaq Stock Market LLC

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

 

Emerging growth company

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

 

 

 

 

 

 

Item 1.01 Entry into a Material Definitive Agreement.

 

Benchmark Licensing Agreement

 

On August 20, 2026, 21Shares US LLC (the “Sponsor”) entered into a licensing agreement (the “Benchmark Licensing Agreement”) with FTSE International Limited (“FTSE” or the “Benchmark Provider”). Entry into the Benchmark Licensing Agreement follows the Sponsor’s notice, provided on June 30, 2026 and previously disclosed, of the termination, effective August 31, 2026, of the Sponsor’s licensing agreement with CF Benchmarks Ltd. relating to the use of the CME CF Sui-Dollar Reference Rate - New York Variant. Pursuant to the Benchmark Licensing Agreement, FTSE will provide each of the Sponsor, 21Shares Sui Staking ETF (the “Trust”), and their affiliates a non-exclusive, non-transferable, non-sub-licensable, worldwide license to access, view and use the FTSE Sui Index (the “Pricing Benchmark”) to develop, create, calculate, settle, maintain or support and market the Trust. Beginning August 27, 2026, the Trust will value its shares of beneficial interest (“Shares”) and calculate its net asset value by reference to the Pricing Benchmark in place of the CME CF Sui-Dollar Reference Rate - New York Variant. Such license is expected to have a one-year initial term and will automatically be renewed for successive one-year periods, unless terminated pursuant to its terms.

 

FTSE is a company incorporated and registered in England, and its principal offices are located at 10 Paternoster Square, London, EC4M 7LS, United Kingdom. FTSE is experienced in calculating and administering digital asset indices. FTSE is unaffiliated with the Sponsor.

 

Amendment No. 1 to the Sponsor Agreement

 

On August 26, 2026, the Trust entered into Amendment No. 1 to the Sponsor Agreement, by and between the Trust and the Sponsor (the “Amendment No. 1 to the Sponsor Agreement”), to change the timing of payment of the sponsor fee the Sponsor receives from the Trust as compensation for the Sponsor’s services rendered to the Trust (the “Sponsor Fee”) from weekly in arrears to at least quarterly in arrears, in each case payable in SUI.

 

The foregoing descriptions of the Benchmark Licensing Agreement and Amendment No. 1 to the Sponsor Agreement are summaries, do not purport to be complete, and are qualified in their entirety by reference to the full text of the Benchmark Licensing Agreement and Amendment No. 1 to the Sponsor Agreement, copies of which are filed as Exhibits 10.1 and 10.2 hereto, respectively, and are incorporated by reference herein.

 

Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.

 

On August 25, 2026, the Sponsor caused a Certificate of Amendment to the Trust’s Certificate of Trust to be filed with the Secretary of State of the State of Delaware in order to change the name of the Trust from “21Shares Sui ETF” to “21Shares Sui Staking ETF”. In addition, on August 26, 2026, the Sponsor and CSC Delaware Trust Company, the Trustee of the Trust, entered into a Second Amended and Restated Trust Agreement (the “Trust Agreement”). The Trust Agreement made changes to the Amended and Restated Trust Agreement to reflect (i) the Trust’s use of the FTSE Sui Index in place of the CME CF Sui-Dollar Reference Rate - New York Variant, (ii) the change in timing of payment of the Sponsor Fee, (iii) the change in the Trust’s name and (iv) various other ministerial, technical, conforming and clarifying revisions, none of which materially impact the rights of the Trust or holders of Shares. A copy of the Certificate of Amendment to the Trust’s Certificate of Trust and a copy of the Trust Agreement are filed as Exhibits 3.1 and 3.2 hereto, respectively.

 

Item 9.01 Financial Statements and Exhibits.

 

3.1   Certificate of Amendment to the Certificate of Trust.
3.2   Second Amended and Restated Trust Agreement, dated as of August 26, 2026.
10.1†   Benchmark Licensing Agreement, dated as of August 20, 2026, between the Sponsor and FTSE.
10.2   Amendment No. 1 to the Sponsor Agreement, dated as of August 26, 2026, between the Trust and the Sponsor.
104   Cover Page Interactive Data File (embedded within the Inline XBRL document).

 

Certain portions of this exhibit have been omitted in accordance with Item 601(b)(10)(iv) of Regulation S-K because the omitted information is (i) not material and (ii) the registrant customarily and actually treats that information as private or confidential. The registrant agrees to furnish supplementally an unredacted copy of the exhibit to the Securities and Exchange Commission upon its request.

 

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SIGNATURES

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

Dated: August 26, 2026 21SHARES SUI STAKING ETF
   
  21Shares US LLC, as Sponsor of 21Shares Sui Staking ETF
   
  By: /s/ Duncan Moir
  Name:  Duncan Moir
  Title: President

 

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Filing Exhibits & Attachments

7 documents