## KEY TAKEAWAYS
- Grayscale Bittensor Trust (GTAO) amended its BitGo Custodial Services Agreement effective September 30, 2026, per SEC filing dated October 5, 2026.
- The original custodial agreement with BitGo was executed March 12, 2025, establishing BitGo as the qualified custodian for the trust's Bittensor (TAO) digital assets.
- BitGo now secures 80 of the top 100 digital assets, including Bittensor, representing expanded custody coverage across major cryptocurrency holdings.
- Grayscale does not directly hold or maintain custody of GTAO's digital assets; all holdings are maintained through the third-party custodian arrangement with BitGo.
- The amendment filing aligns with standard custodial agreement provisions allowing for modification with proper client notification, as outlined in the original agreement terms.
## DETAILED SUMMARY
Grayscale Bittensor Trust (GTAO) filed an amendment to its BitGo Custodial Services Agreement on September 30, 2026, according to SEC documentation released October 5, 2026. The amendment represents a modification to the custodial arrangement that has governed the trust's digital asset holdings since the original agreement's execution on March 12, 2025.
Under the terms of the custodial agreement, Grayscale does not directly store, hold, or maintain custody of the trust's Bittensor assets. Instead, all digital assets are held by BitGo, which serves as the qualified custodian. BitGo's custody capabilities have expanded significantly, with the addition of Bittensor support enabling BitGo to now secure 80 of the top 100 digital assets by market capitalization—a broader coverage than any other qualified custodian in the market.
The Grayscale Bittensor Trust was formed as a Delaware Statutory Trust on April 30, 2024, and began operations with BitGo as its designated custodian. The amendment to the custodial services agreement follows standard operational procedures, as the original agreement provisions explicitly permit BitGo to modify terms with proper notice to the client. This filing reflects ongoing adjustments to support the trust's operational requirements and ensure continued compliance with custody standards.
