Company: GSUI
Filing Date: 2025-12-05
Form Type: S-1
Source: 0001193125-25-309828
Chunk: 176

Company: Grayscale Sui Trust (SUI)
Filing Date: 2025-12-05
Form: S-1
Chunk 176
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. The Liquidity Engager may engage additional Liquidity Providers who are unaffiliated with the Trust in the future.

, one of the Authorized Participants, is an affiliate of , one of the Liquidity Providers.

The Custodian and Prime Broker

Coinbase Custody Trust Company, LLC is a fiduciary under § 100 of the New York Banking Law and a qualified custodian for purposes of Rule 206(4)-2(d)(6) under the Investment Advisers Act. The Custodian is authorized to serve as the Trust’s custodian under the Trust Agreement and pursuant to the terms and provisions of the Prime Broker Agreement. The Custodian has its principal office at 200 Park Avenue South, Suite 1208, New York, NY 10003. A copy of the Prime Broker Agreement is available for inspection at the Sponsor’s principal office identified herein and is filed as an exhibit to the registration statement of which this prospectus forms a part.

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Under the Prime Broker Agreement, the Custodian controls and secures the Trust’s “Vault Balance,” a segregated custody account to store private keys, which allow for the transfer of ownership or control of the Trust’s SUI, on the Trust’s behalf. The Custodian’s services (i) allow SUI to be deposited from a public blockchain address to the Trust’s Vault Balance and (ii) allow the Trust or Sponsor to withdraw SUI from the Trust’s Vault Balance to a public blockchain address the Trust or Sponsor controls (the “Custodial and Prime Broker Services”). The Vault Balance uses offline storage, or “cold” storage, mechanisms to secure the Trust’s private keys. The term cold storage refers to a safeguarding method by which the private keys corresponding to digital assets are disconnected.

The Custodian will withdraw from the Trust’s Vault Balance the amount of SUI necessary to pay the Trust’s expenses.

Fees paid to the Custodian are a Sponsor-paid Expense.

Under the Prime Broker Agreement, each of the Custodian and the Trust has agreed to indemnify and hold harmless the other party from any third-party claim or third-party demand (including reasonable and documented attorneys’ fees and any fines, fees or penalties imposed by any regulatory authority) arising out of or related to the Custodian’s or the Trust’s, as the case may be, breach of the Prime Broker Agreement, inaccuracy in any of the Custodian’s or the Trust’s, as the case may be, representations or warranties in the Prime Broker Agreement,