On October 5, 2026, Grayscale Sui Staking ETF introduced by way of a Kind 8-Ok submitting that its sponsor finalized a custody settlement with Anchorage Digital Bank N.A. on September 29, 2026, appointing the financial institution as a further custodian for a part of the Belief’s SUI property.
Key Highlights
- Custody settlement replace: The Sponsor executed the Sixth Modification to the Grasp Custody Service Settlement with Anchorage Digital Bank N.A., initially dated August 8, 2025, on September 29, 2026.
- Main custodian stays: Coinbase Custody Belief Firm, LLC continues as the Belief’s primary custodian, with no modifications to the prevailing setup.
- SUI allocation pending: The submitting notes that “the Sponsor has not decided the full quantity of the Belief’s SUI it would transfer to Anchorage Digital” presently.
- Insurance coverage mandate: Anchorage Digital should preserve business crime insurance coverage or a constancy bond with protection of no less than $100 million, defending in opposition to theft of digital property together with chilly storage holdings.
- Fork protocol clause: Ought to a Sui blockchain fork happen, Anchorage Digital might briefly droop companies and resolve independently whether or not to assist both fork department.
- Rising development firm standing: The registrant is designated as an rising development firm beneath SEC laws.
Grayscale Sui Staking ETF Enhances Custody Companies by Including Anchorage Digital Bank
Grayscale Investments Sponsors, LLC, the sponsor of Grayscale Sui Staking ETF (NYSE Arca: GSUI), entered into the Sixth Modification to its Grasp Custody Service Settlement with Anchorage Digital Bank N.A., a nationwide belief financial institution regulated by the Workplace of the Comptroller of the Forex, on September 29, 2026. This modification formally consists of the Belief as a celebration, authorizing Anchorage Digital to offer custody and safekeeping for a portion of the Belief’s SUI holdings.
The submitting explains that including Anchorage Digital aligns with the Sponsor’s ongoing danger administration technique amid the Belief’s development. The Sponsor retains unique discretion over the allocation of SUI between custodians, as allowed by the Belief Settlement. Charges paid to Anchorage Digital are categorized as Sponsor-paid Bills, with Anchorage Digital approved to withdraw SUI from the Belief’s account to cowl these charges and any Additional Belief Bills, following procedures outlined within the Belief’s prospectus dated April 16, 2026.
Underneath this custody association, Anchorage Digital safeguards the Belief’s SUI by producing and securely holding non-public keys and corresponding public keys, with the {hardware} safety module used for defense positioned in the US. The submitting additionally cautions that shareholders can’t be assured that Anchorage Digital will preserve enough insurance coverage or that such protection will absolutely shield in opposition to losses involving the Belief’s SUI. Kathryn Masci, Interim Chief Monetary Officer of Grayscale Investments Sponsors, LLC, signed the submitting on October 5, 2026.
Abstract of Disclosure
The Belief revealed the execution of a cloth definitive settlement including Anchorage Digital Bank N.A. as a further custodian for a portion of its SUI holdings, whereas confirming Coinbase Custody Belief Firm, LLC stays the first custodian. The Sponsor has but to resolve the precise quantity of SUI to switch to Anchorage Digital.
