secwatch.observer — SEC 8-K summary
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Issuer:     Grayscale Bitcoin Mini Trust ETF (BTC)
CIK:        0002015034
Form:       8-K
Filed at:   2025-09-26T23:59:59+00:00
Accession:  0001193125-25-220479
Event type: other_material
Sentiment:  neutral
Materiality: 0.55
Item codes: 1.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Grayscale Bitcoin Mini Trust adds Anchorage Digital as secondary Bitcoin custodian for risk management
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- On Sept 25, 2025, Trust entered Second Amendment to add Anchorage Digital Bank N.A. as custody provider for Bitcoin holdings.
- Coinbase remains primary custodian; portion of Bitcoin to be held at Anchorage not yet determined by Sponsor.
- Anchorage will store private keys in cold storage, reducing online hacking risk compared to hot storage.
- Agreement includes indemnification obligations and requirement for Anchorage to maintain insurance.
- Addition reflects Sponsor's ongoing risk management approach given Trust's growing size.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/2015034/000119312525220479/0001193125-25-220479-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/2015034/000119312525220479/btc-20250926.htm
  HTML page:      https://secwatch.observer/filing/0001193125-25-220479

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