Investing involves risk, including possible loss of principal. An investment in Grayscale Bitcoin Trust ETF (“GBTC” or the “Fund”) is subject to a high degree of risk and heightened volatility. GBTC is not suitable for any investor that cannot afford loss of the entire investment.

The Grayscale Bitcoin Trust ETF has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the Fund has filed with the SEC for more complete information about the Fund and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the Fund or any authorized participant will arrange to send you the prospectus (when available) if you request it by calling (833)903-2211 or by contacting Foreside Fund Services, LLC, Three Canal Plaza, Suite 100, Portland, Maine 04101.

Foreside Fund Services, LLC is the Marketing Agent for GBTC.

The Fund is not registered under the 40 Act and is not subject to regulation under the 40 Act, unlike most mutual funds or ETFs. The Fund may trade at a premium or discount to their net asset value. These funds are new and have limited operating history to judge.

There is no guarantee that a market for the shares will be available, which could adversely impact the liquidity of the Fund. The value of the Fund relates directly to the value of the underlying digital asset, the value of which may be highly volatile and subject to fluctuations due to a number of factors.

The Fund relies on third party service providers to perform certain functions essential to the affairs of the Trust and the replacement of such service providers could pose a challenge to the safekeeping of the digital asset and to the operations of the Fund.

NAV per Share is not calculated in accordance with GAAP. NAV per Share is not intended to be a substitute for the Trust's Principal Market NAV per Share calculated in accordance with GAAP.

Prior to 1/11/2024, shares of the Fund were offered only in private placement transactions exempt from registration under the Securities Act of 1933, and were quoted on the OTCQX® Best Market. The Fund did not have an ongoing share creation and redemption program. Effective as of the open of business on 1/11/2024, the shares of the Fund were listed to NYSE Arca as an exchange-traded product, the Fund established an ongoing share creation and redemption program and the shares are being offered on a registered basis pursuant to a Registration Statement on Form S-3.

The Fund’s investment objective both before and after 1/11/2024 has remained constant, namely to reflect the value of Bitcoin held by the Fund, less expenses and other liabilities. However prior to 1/11/2024, the Fund did not meet its investment objective and its shares traded at both premiums and discounts to such value, which at times were substantial, in part due to the lack of an ongoing redemption program. Furthermore, the Fund’s performance prior to 1/11/2024 is based on market-determined prices on the OTCQX, while the Trust’s performance following such date is based on market-determined prices on NYSE Arca. As a result, the Fund’s historical data prior to 1/11/2024 is not directly comparable to, and should not be used to make conclusions in conjunction with, the Fund’s performance following that date. The performance of the Fund before and after 1/11/2024 may differ significantly.

Digital Asset Risk Disclosures

Extreme volatility of trading prices that many digital assets, including Bitcoin, have experienced in recent periods and may continue to experience, could have a material adverse effect on the value of the Fund and the shares could lose all or substantially all of their value.

Digital assets represent a new and rapidly evolving industry. The value of the Fund depends on the acceptance of the digital assets, the capabilities and development of blockchain technologies and the fundamental investment characteristics of the digital asset.

Digital asset networks are developed by a diverse set of contributors and the perception that certain high-profile contributors will no longer contribute to the network could have an adverse effect on the market price of the related digital asset.

Digital assets may have concentrated ownership and large sales or distributions by holders of such digital assets could have an adverse effect on the market price of such digital assets.

The Fund holds Bitcoin; however, an investment in the Fund is not a direct investment in Bitcoin. As a non-diversified and single industry fund, the value of the shares may fluctuate more than shares invested in a broader range of industries.

A substantial direct investment in digital assets may require expensive and sometimes complicated arrangements in connection with the acquisition, security and safekeeping of the digital asset and may involve the payment of substantial acquisition fees from third party facilitators through cash payments of U.S. dollars. Because the value of the Fund is correlated with the value of Bitcoin, it is important to understand the investment attributes of, and the market for, the underlying digital asset. Please consult with your financial professional.

The Sponsor does not store, hold, or maintain custody or control of the Fund’s digital assets but instead has entered into the Custodian Agreement with a third party to facilitate the security of its digital assets. The Custodian controls and secures the Fund’s digital asset accounts, a segregated custody account to store private keys, which allow for the transfer of ownership or control of the digital asset, on the Fund’s behalf. If the Custodian resigns or is removed by the Sponsor or otherwise, without replacement, it could trigger early termination of the Fund.

COINDESK® and the Fund's applicable reference rate (the "Index") are trade or service marks of CoinDesk Indices, Inc. (with its affiliates, including CC Data Limited, “CDI”), and/or its licensors. CDI or CDI's licensors own all proprietary rights in the Index. CDI is not affiliated with Grayscale and does not approve, endorse, review, or recommend the Fund. CDI does not guarantee the timeliness, accurateness, or completeness of any data or information relating to any Index and shall not be liable in any way to Grayscale, investors in or holders of any of the Fund or other third parties in respect of the use or accuracy of any Index or any data included therein.