Grayscale Bittensor Trust (TAO): adds BitGo and Coinbase as custodians

What happened

• The filing says the sponsor entered into an amendment on Sep 30, 2026 making the trust a party to the Amended and Restated BitGo Custodial Services Agreement, and entered into an amendment on Sep 29, 2026 making the trust a party to the Coinbase Prime Broker Agreement (which includes Coinbase Custody custodial services).

Key details

• BitGo: the BitGo Custodian Agreement (as amended) will provide custody and safekeeping for the trust’s TAO; the trust’s prior custodial services agreement with BitGo was terminated in connection with this entry.
• Coinbase: the Coinbase Prime Broker Agreement will provide custody for a portion of the trust’s TAO; the sponsor has not yet determined how much TAO, if any, will be moved to Coinbase.
• Custody rules: both agreements require TAO to be held in segregated custodial accounts and state that custodial assets are not general assets of the custodians. Both agreements address blockchain forks by allowing the custodians to suspend services and decide whether to support forked branches.
• Fees and protections: fees paid to the custodians are sponsor-paid expenses; both agreements require the trust to indemnify the custodians for certain losses (except for claims caused by specified custodial misconduct) and require custodians to carry commercially reasonable insurance.

Why it may matter

• The filing reports Item 1.01 (entry into material definitive agreements) and Item 1.02 (termination of a prior custodial agreement) related to custody of the trust’s TAO holdings. The filing does not show why the company acted.