Bittensor (TAO): Grayscale adds Coinbase as a second custodian, price 10.7 percent below the weekly high

Grayscale will have the TAO of its Bittensor trust held by two houses in future instead of one. The asset manager has added Coinbase Prime as a second custodian, with BitGo remaining primary custodian. The move is set out in an 8-K that the trust filed with the US Securities and Exchange Commission on 5 October 2026. For holders of Bittensor, this is not price news but news about the question of who holds the keys.

The price itself has a weak week behind it. TAO trades at $275.96, which is 10.7 percent below the highest daily value of the past seven days, according to CoinGecko as of Friday, 9:00. Over seven days it shows a loss of 11.99 percent, over 30 days a gain of 6.39 percent. Taken together, the two describe a pullback inside a month that is still in positive territory on balance.

What Grayscale reported in the 8-K on the custody of TAO

An 8-K is the mandatory filing with which an issuer registered with the SEC discloses a material event between two quarterly reports. In it, the Grayscale Bittensor Trust reports two contracts signed and one contract terminated, all dated to the end of the month.

On 29 September 2026, the sponsor signed an amendment to the Coinbase Prime Broker Agreement of 3 October 2025 on behalf of the trust. Coinbase will thereby hold a portion of the trust's TAO. A day later, on 30 September, an amendment followed to the revised custody agreement with BitGo Bank & Trust of 5 June 2026, which brings the trust into that agreement. The older BitGo agreement of 12 March 2025 was terminated on the same day.