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21Shares Sui ETF (TSUI), now named the 21Shares Sui Staking ETF, updates its S-1 prospectus to reflect three main changes: a new pricing benchmark, revised fee payment timing, and the formal name change.
As of August 27, 2026, the Trust stopped using the CME CF Sui–Dollar Reference Rate – New York Variant and began using the FTSE Sui Index as its Pricing Benchmark for valuing SUI and calculating NAV. The new index is administered by FTSE International Limited, uses a 60‑minute observation window ending at 4:00 p.m. ET, and calculates a 15‑second volume‑weighted average price with trade‑ and exchange‑level outlier filters. The benchmark currently draws data from Kraken, Bitstamp, Bitfinex and Gemini and is subject to UK Benchmark Regulation oversight.
The Trust continues to charge a 0.30% annualized Sponsor Fee, but this fee, previously payable weekly in arrears in SUI, is now payable at least quarterly in arrears. The Trust remains a passive ETF seeking to track SUI as measured by the Pricing Benchmark (net of expenses) and to reflect staking rewards when the Sponsor determines staking can be undertaken without undue legal or regulatory risk, while avoiding leverage or derivatives.
21Shares Sui ETF (TSUI), now named 21Shares Sui Staking ETF, reports several structural updates. The Sponsor, 21Shares US LLC, entered a Benchmark Licensing Agreement with FTSE International Limited under which the Trust will use the FTSE Sui Index as its pricing benchmark. Beginning August 27, 2026, the Trust will value its shares and calculate net asset value by reference to this FTSE Sui Index, replacing the CME CF Sui-Dollar Reference Rate – New York Variant, whose prior licensing agreement is scheduled to terminate on August 31, 2026. The Trust also executed Amendment No. 1 to the Sponsor Agreement to change Sponsor Fee payments from weekly in arrears to at least quarterly in arrears, payable in SUI. In addition, a Certificate of Amendment changed the Trust’s name to 21Shares Sui Staking ETF, and a Second Amended and Restated Trust Agreement was adopted to reflect the new index, revised fee timing, updated name, and other ministerial and clarifying revisions that are stated not to materially impact the rights of the Trust or its shareholders.
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.
21Shares Sui ETF tracks the price of SUI tokens with an additional focus on earning staking rewards. As of June 30, 2026, net assets were $12.64 million, or $13.89 per share on 910,000 shares outstanding, with approximately 94.75% of SUI staked.
During the quarter, the price of SUI declined from $0.88 to $0.70, driving a NAV decrease from $15.09 million to $12.64 million and a total return at NAV of (20.60)%. Staking Rewards were $46,205, offset by a 0.30% Sponsor Fee and a Staking Fee equal to 25% of net staking rewards, resulting in net investment income of $23,426. The Trust also paid cash distributions of $53,101 during the quarter.
Since initial seeding on November 18, 2025, SUI’s price fell from $1.69 to $0.70, and NAV per share declined from $33.72 to $13.89, a total return of (58.68)%. The Trust remains an emerging growth company, has no material legal proceedings, and plans to transition its pricing benchmark provider to FTSE in late August 2026 without expected impact on valuation methodology.
21Shares Sui ETF, an exchange-traded grantor trust tracking SUI tokens with ticker TSUI, reported unaudited net assets of $12,637,858 and 910,000 shares outstanding as of June 30, 2026, implying a NAV per share of $13.89. The Trust held 18,185,184.2145 SUI with a fair value of $12,638,703, versus a cost basis of $23,207,147, reflecting substantial unrealized losses from prior SUI price declines.
For the quarter, NAV fell from $15,092,444 to $12,637,858, a 16.26% decrease, driven mainly by a 20.45% drop in SUI’s price (from $0.88 to $0.70). Total return at NAV was (20.60)%. Since initial seeding on November 18, 2025, SUI declined from $1.69 to $0.70, and NAV per share fell from $33.72 to $13.89, a (58.68)% total return.
The Trust generated $46,205 of net staking rewards in the quarter and $68,696 since inception, with average daily staked SUI of 95.74% for the quarter and 94.06% since operations began. After Sponsor and staking fees (0.30% annual Sponsor Fee and a 25% share of net staking rewards to the Sponsor), net investment income was $23,426 for the quarter and $36,224 since inception, and cash distributions of $53,100.67 (total $0.064705 per share) were paid in May and June. The Trust remains highly concentrated in a single digital asset and qualifies as an emerging growth company, with the Sponsor bearing most ordinary operating costs. A change of pricing benchmark provider from CF Benchmarks to FTSE is planned effective late August 2026 and is not expected to be material.
21Shares Sui ETF filed a prospectus supplement to include a Current Report on Form 8-K reporting that the Sponsor terminated its licensing agreement with CF Benchmarks Ltd., effective August 31, 2026.
The supplement states the Sponsor provided notice on June 30, 2026 and intends to enter a new licensing agreement with FTSE International Limited on or about August 24, 2026 to license FTSE index data for use in valuing and supporting the Trust.
21Shares Sui ETF is terminating its current pricing benchmark agreement with CF Benchmarks, effective August 31, 2026. The CME CF Sui — Dollar Reference Rate — New York Variant is presently used to value the ETF’s shares and calculate its net asset value each day.
The sponsor plans to enter a new licensing agreement with FTSE International Limited on or about August 24, 2026, under which FTSE will supply digital asset index data for developing, maintaining, and marketing the fund. Both the current and planned FTSE licenses feature initial one-year terms with automatic one-year renewals unless terminated.
21Shares Sui ETF filed its Quarterly Report on Form 10-Q and a prospectus supplement dated May 15, 2026 to include that Report. The Report discloses unaudited March 31, 2026 financials: net assets $15,092,444, NAV per share $17.55, and 790,000 shares outstanding as of May 11, 2026. The period from November 18, 2025 (initial seeding) through March 31, 2026 shows a net decrease in net assets of $(8,612,768) largely driven by an unrealized depreciation on its SUI holdings of $(8,365,012). The Trust held 17,213,810.1127 SUI tokens (fair value $15,093,069) and reported staking income of $22,491 for the period, net of a Sponsor Fee and Staking Fee. The filing also describes staking mechanics, Sponsor fee arrangements (0.30% annual Sponsor Fee) and the Sui Foundation one-year lock-up on 1,000,000 Shares.
21Shares Sui ETF reports its first full quarter of operations, showing how closely it tracks the SUI token. Net assets were $15,092,444 with 860,000 shares outstanding at March 31, 2026, giving a NAV per share of $17.55.
Over the quarter, NAV per share fell from $27.84 to $17.55, a total return of -36.96%, driven by a 36.69% drop in SUI’s price. Despite this, total NAV rose as the Trust issued 380,000 new shares and redeemed 20,000.
The Trust held 17,213,810.1127 SUI worth $15,093,069 and had 97.69% of its SUI staked at quarter-end, generating $22,491 of staking rewards. Expenses remained limited to a 0.30% annual Sponsor Fee and a Staking Fee of $5,623, with no debt and no material legal proceedings disclosed.