Exhibit 10.12

SECOND AMENDMENT TO MASTER CUSTODY SERVICE AGREEMENT

 

This SECOND AMENDMENT (the “Amendment”) to the Master Custody Service Agreement, dated August 8, 2025 (the “Agreement”), is made on September 25, 2025 (“Amendment Effective Date”), by and between Anchorage Digital Bank N.A. (formerly Anchorage Trust Company, herein “Anchorage”) and each entity listed on the Order Form of the Agreement (each a “Client”) (Anchorage and Client, collectively, the “Parties”).

 

Pursuant to Section 12.7 of the Agreement, and for good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the Parties hereby agree to amend the Agreement as follows:

 

1.
Amendments.

 

1.1.
Each of the following Clients are hereby added to the “Client(s)” section of the Order Form
of the Agreement:

 

Grayscale Solana Trust (SOL), a Delaware trust company

Grayscale Ethereum Mini Trust ETF, a Delaware trust company

Grayscale Bitcoin Mini Trust ETF, a Delaware trust company

 

 

2.
Miscellaneous.

 

2.1.
Governing Law. This Amendment will be subject to the relevant governing law provision in the Agreement (as amended hereto).

 

2.2.
Effect of Amendments. Except as otherwise amended herein, all other provisions of the Agreement remain in full force and effect, and any provision in the Agreement that conflicts with the terms of this Amendment shall be deemed to be amended appropriately in order to be consistent with this Amendment.

 

2.3.
Capitalized Terms. Capitalized terms not otherwise defined herein shall have the meanings ascribed to them in the Agreement, including without limitation Schedule A (Definitions).

 

2.4.
Execution in Counterparts and by Electronic Means. This Amendment may be executed in counterparts and by electronic means, and the Parties agree that such electronic means and delivery will have the same force and effect as delivery of an original document with original signatures.

 

IN WITNESS WHEREOF, by their duly authorized representatives, Anchorage and Client hereby execute this Amendment as of the Amendment Effective Date.

 

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ANCHORAGE DIGITAL BANK N.A.

ON BEHALF OF EACH CLIENT HEREIN

By: Grayscale Investments Sponsors, LLC, for itself and as Sponsor of the Clients listed in Section 1 of this Order Form, and any other Clients it sponsors from time to time.

By: [/s/ Rachel Anderika

By: /s/ Edward McGee

Name: Rachel Anderika

Name: Edward McGee

Title: Chief Operating Officer_X3Qi9Zr]

Title: Chief Financial Officer

 

Company: Grayscale Investment Sponsors, LLC

 

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