Company: GBTC
Filing Date: 2025-06-25
Form Type: 8-K
Source: 0000950170-25-089983
Chunk: 0

Company: Grayscale Bitcoin Trust ETF
Filing Date: 2025-06-25
Form: 8-K
Item: Item 8.01
Chunk 0
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Item 8.01. Other Events.

CoinDesk Indices, Inc. (the “ Index Provider”) announced a change to the Constituent Trading Platforms used to derive the Index Price for Grayscale Bitcoin Trust ETF (the “ Trust”). Effective June 22, 2025, the Index Provider added Bitfinex to the CoinDesk Bitcoin Price Index (XBX) (the “ Index”) due to the trading platform meeting the Index Provider’s minimum liquidity requirement, and did not remove any Constituent Trading Platforms as part of its scheduled quarterly review. As of the date of this current report, the Digital Asset Trading Platforms included in the Index are Coinbase, Kraken, Bitstamp, Crypto. com, LMAX Digital, Bullish and Bitfinex.

The Index Provider may change the trading venues that are used to calculate the Index Price, or otherwise change the way in which an Index Price is calculated, at any time. The Index Provider has scheduled quarterly reviews, in which it may add or remove Constituent Trading Platforms that satisfy or fail the criteria described in “ Item 1. Business - Overview of the Bitcoin Industry and Market - Bitcoin Value - The Index and the Index Price” in the Trust’s Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the Securities and Exchange Commission on February 27, 2025.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

                                         Grayscale Investments Sponsors, LLC, as Sponsor of Grayscale Bitcoin Trust ETF  
  Date:      June 25, 2025      By:      /s/ Edward McGee                                                                
                                         Name: Edward McGee                                                              

* The Registrant is a trust and the identified person signing this report is signing in their capacity as an authorized officer of Grayscale Investments Sponsors, LLC, the Sponsor of the Registrant.