Company: BTC
Filing Date: 2025-04-01
Form Type: POS AM
Source: 0001193125-25-070549
Chunk: 136

Company: Grayscale Bitcoin Mini Trust ETF
Filing Date: 2025-04-01
Form: POS AM
Chunk 136
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0.001%. All Digital Asset Trading Platforms that were included in the Index throughout the period were considered in this analysis. To the extent such prices differ materially from the Index Price, investors may lose confidence in the Shares’ ability to track the market price of Bitcoin. The Index and the Index Price The Index is a U.S. dollar-denominated composite reference rate for the price of Bitcoin. The Index is designed to (1) mitigate the effects of fraud, manipulation and other anomalous trading activity from impacting the Bitcoin reference rate, (2) provide a real-time, volume-weighted fair value of Bitcoin and (3) appropriately handle and adjust for non-marketrelated events. The Index Price is determined by the Index Provider through a process in which trade data is cleansed and compiled in such a manner as to algorithmically reduce the impact of anomalistic or manipulative trading. This is accomplished by adjusting the weight of each data input based on price deviation relative to the observable set, as well as recent and long-term trading volume at each venue relative to the observable set. The Index Price is calculated using non-GAAPmethodology and is not used in the Trust’s financial statements. 83

All references to the NAV and NAV per Share of the Trust in this prospectus have been calculated using the Index Price unless indicated otherwise. Constituent Trading Platform Selection The Digital Asset Trading Platforms that are included in the Index are selected by the Index Provider utilizing a methodology that is guided by the International Organization of Securities Commissions (“IOSCO”) principles for financial benchmarks. For a trading platform to become a Constituent Trading Platform, it must satisfy the criteria listed below (the “Inclusion Criteria”):

| • |     | No evidence in the past 12 months of trading restrictions on individuals or entities that would otherwise meet 
 the trading platform’s eligibility requirements to trade;                                                      |

| • |     | No evidence in the past 12 months of undisclosed restrictions on deposits or withdrawals from user accounts; |

| • |     | Real-time price discovery; |

| • |     | Limited or no capital controls; |

| • |     | Transparent ownership including a publicly-known ownership entity; |

| • |     | Publicly available language and policies addressing legal and regulatory compliance, including KYC (Know Your                      
 Customer), AML (Anti-Money Laundering) and other policies designed to comply with relevant regulations that might apply to it; and |

| • |     | Offer programmatic spot trading of the trading pair, and reliably publish trade prices and volumes