Company: BTC
Filing Date: 2025-09-12
Form Type: 424B3
Source: 0000950170-25-114372
Chunk: 0

Company: Grayscale Bitcoin Mini Trust ETF
Filing Date: 2025-09-12
Form: 424B3
Chunk 0
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Filed Pursuant to Rule 424(b)(3)

Registration No. 333-277837

PROSPECTUS

<div align='center'>Grayscale Bitcoin Mini Trust ETF</div>

Grayscale Bitcoin Mini Trust ETF (the “Trust”) (formerly Grayscale Bitcoin Mini Trust (BTC)) is a Delaware statutory trust that issues common units of fractional undivided beneficial interest (“Shares”), which represent ownership in the Trust. The Trust’s purpose is to hold Bitcoin, which are digital assets that are created and transmitted through the operations of the peer-to-peer Bitcoin Network, a decentralized network of computers that operates on cryptographic protocols. The Trust’s investment objective is for the value of the Shares (based on Bitcoin per Share) to reflect the value of Bitcoin held by the Trust, as determined by reference to the Index Price (as defined herein), less the Trust’s expenses and other liabilities. While an investment in the Shares is not a direct investment in Bitcoin, the Shares are designed to provide investors with a cost-effective and convenient way to gain investment exposure to Bitcoin. Grayscale Investments Sponsors, LLC is the sponsor of the Trust (the “Sponsor”), CSC Delaware Trust Company is the trustee of the Trust (the “Trustee”), The Bank of New York Mellon is the transfer agent of the Trust (in such capacity, the “Transfer Agent”) and the administrator of the Trust (in such capacity, the “Administrator”), Continental Stock Transfer & Trust Company is the co-transfer agent of the Trust (the “Co-Transfer Agent”), Coinbase, Inc. is the prime broker of the Trust (the “Prime Broker”) and Coinbase Custody Trust Company, LLC is the custodian of the Trust (the “Custodian”).

The Shares are listed on NYSE Arca, Inc. (“NYSE Arca”) under the symbol “BTC.” The Trust intends to issue Shares on a continuous basis and is registering an indeterminate number of Shares. It is expected that the Shares will be sold to the public at varying prices to be determined by reference to, among other considerations, the price of Bitcoin and the trading price of the Shares on the NYSE Arca at the time of each sale.

The Shares may be purchased from the Trust only in one or more blocks of 10,000 Shares (a block of 10,000 Shares is called a “Basket”). The Trust issues Baskets of Shares to certain authorized participants (“Authorized Participants”) on an ongoing basis as described in “Plan of Distribution.” In addition, the Trust redeems Shares in