Grayscale Hyperliquid Staking ETF: adds BitGo Trust as additional custodian

What happened

• The filing says Grayscale Investments Sponsors, LLC, as sponsor of Grayscale Hyperliquid Staking ETF (the “Trust”), entered into an amendment on Sep 30, 2026 (the “BitGo Amendment”) to the Amended and Restated BitGo Custodial Services Agreement, adding BitGo Bank & Trust, National Association (“BitGo Trust”) as a party. The filing says BitGo Trust will provide custody and safekeeping services for a portion of the Trust’s HYPE holdings and that Anchorage Digital Bank N.A. (“Anchorage Digital”) remains the Trust’s primary custodian.

Key details

• The BitGo Amendment was entered on Sep 30, 2026; the underlying Amended and Restated BitGo Custodial Services Agreement is dated Jun 5, 2026.
• The Sponsor expects to utilize BitGo Trust to custody a portion of the Trust’s HYPE, but the Sponsor has not determined the amount to move to BitGo Trust.
• HYPE held at BitGo Trust will be held in a segregated custodial account with keys held by BitGo Trust; fees paid to the Additional Custodian are a Sponsor-paid expense.
• The agreement permits BitGo Trust, in the event of a fork of the Hyperliquid blockchain, to suspend operations temporarily and to decide whether to support either branch; the agreement also includes indemnification provisions and requires BitGo Trust to maintain insurance.

Why it may matter

• The filing is reported as Item 1.01 (entry into a material definitive agreement) and describes adding an additional custodian and related custody procedures for the Trust’s HYPE holdings, including how Sponsor fees and expenses may be paid from those holdings. The filing does not show why the insider traded or why the company acted.