Grayscale Bitcoin Trust adds Anchorage Digital as secondary Bitcoin custodian

Grayscale Bitcoin Trust ETF

Entered custodial agreement with Anchorage Digital Bank N.A. on Aug 8, 2025 for Bitcoin custody.
Anchorage will store Bitcoin private keys in cold storage; Coinbase remains primary custodian.
Sponsor has not yet determined amount of Bitcoin to move to Anchorage.
Agreement also covers Grayscale Ethereum Trust ETF as additional client.
Anchorage is a national trust bank chartered by OCC; agreement includes indemnification and insurance.

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