secwatch.observer — SEC 8-K summary
======================================

Issuer:     Ark 21Shares Bitcoin ETF (ARKB)
CIK:        0001869699
Form:       8-K
Filed at:   2025-12-18T23:59:59+00:00
Accession:  0001213900-25-123286
Event type: other_material
Sentiment:  positive
Materiality: 0.35
Item codes: 1.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

ARK 21Shares Bitcoin ETF adds BitGo as custodian and Macquarie as AP with in-kind creation
--------------------------------------------------------------------------------

- Entered custodial services agreement with BitGo Trust Company to custody a portion of Trust's bitcoin starting Dec 12, 2025.
- Will allocate bitcoin among existing custodians (Coinbase, Anchorage, BitGo New York) and BitGo; allocation not disclosed.
- Sponsor bears transfer fees between custodians; on-chain transfers subject to Bitcoin network risks.
- Entered authorized participant agreement with Macquarie Capital on Dec 16, 2025, allowing in-kind creation/redemption of baskets.
- Transaction fees for creation/redemption may apply unless waived by sponsor.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1869699/000121390025123286/0001213900-25-123286-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1869699/000121390025123286/ea0270186-8k_ark21share.htm
  HTML page:      https://secwatch.observer/filing/0001213900-25-123286

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer