Every 424B that Grayscale Sui Staking ETF (GSUI) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow GSUI and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full GSUI filings page.
Grayscale Sui Staking ETF updates its governing Trust Agreement to begin regular cash distributions of net staking rewards to shareholders. The Trust must convert Staking Consideration to cash at least quarterly and intends to distribute net cash proceeds, after a Staking Fee and expenses, on a monthly, but no less than quarterly, basis.
The Sponsor continues to treat the Trust as a grantor trust for U.S. federal income tax purposes, so income, gains, losses and deductions from SUI and staking are expected to flow through to shareholders. However, the IRS’s 2025 staking safe harbor may not be fully satisfied, and extensive new disclosure highlights that grantor trust status and the tax treatment of digital assets, staking rewards, forks and airdrops remain uncertain.
If the Trust were reclassified as a partnership or corporation, entity-level tax and withholding (including potential 21% corporate tax and 30% withholding on some payments to non‑U.S. investors) could materially reduce after-tax returns and create divergence between NAV and the value of SUI. Non‑U.S. and tax‑exempt holders face specific risks around FDAP income, effectively connected income and potential UBTI from staking.
Grayscale Sui Staking ETF plans to amend its Trust Agreement on or around August 7, 2026 to change how staking rewards are handled. The amendment would require the Trust to convert Staking Consideration to cash no less often than quarterly and promptly distribute the net cash proceeds to shareholders, after paying Trust expenses not assumed by the Sponsor, including a portion of the Staking Consideration to the Sponsor for facilitating staking arrangements.
The changes are intended to support the Trust’s staking program and a mandatory distribution framework through various conforming updates to the Trust Agreement. The size of future distributions will depend on the actual Staking Consideration received and cannot be predicted. Shareholders are advised to consult tax advisors about potential tax effects of these distributions. Shares continue to trade on NYSE Arca under the symbol GSUI.
Grayscale Sui Staking ETF (GSUI) files a prospectus for continuous issuance of Shares designed to track the U.S. dollar value of SUI held by the Trust (including SUI earned as Staking Consideration), less expenses and liabilities. The Trust issues Shares only in Baskets of 10,000 and has registered an indeterminate number of Shares. The Trust commenced Provider-Facilitated Staking after the Staking Condition was satisfied on February 17, 2026 and began staking on February 18, 2026. Key operational features include daily NAV and Index Price calculations at 4:00 p.m. New York time, a Sponsor’s Fee that accrues at an annual rate of 0.35% payable in SUI, and an aggregate 23% allocation of gross staking consideration to the Sponsor, Custodian and Staking Provider. The prospectus discloses material risks including extreme SUI price volatility, regulatory uncertainty, staking-specific liquidity and slashing risks, and reliance on third-party service providers.
Grayscale Sui Staking ETF filed a Prospectus Supplement to include its Annual Report on December 31, 2025, reporting its Form 10-K for the fiscal year ended December 31, 2025. The filing states Shares outstanding were 1,718,900 as of March 19, 2026 and discloses the Trust commenced staking and related staking terms.
The report discloses the Trust held approximately 0.08% of SUI in circulation as of December 31, 2025, that each Share represented ~14.4785 SUI as of December 31, 2025, and that effective February 18, 2026 the Sponsor’s Staking Fee, the Custodian’s fee and the Staking Provider’s share aggregate to 23% of gross staking consideration.
Grayscale Sui Staking ETF is registering an indeterminate number of Shares for continuous issuance and has received NYSE Arca approval to list under the symbol GSUI. The Trust holds SUI and seeks to track SUI value (including potential SUI earned from staking, if the Staking Condition is satisfied) less expenses. Creations and redemptions occur in Baskets of 10,000 Shares, via in-kind or cash orders, and the Sponsor currently waives its fee for a limited period. The Index Price used to calculate NAV is a non-GAAP, USD-denominated composite derived from selected Digital Asset Trading Platforms. As of December 31, 2025, ~3,737 million SUI were in circulation and aggregate market value was $5.2 billion. The Trust is an emerging growth company and Staking is currently prohibited because the Staking Condition has not been met.