BTC Development Sponsor LLC - 01 Oct 2025 SCHEDULE 13D Report for BTC Development Corp. Class A Ordinary Shares, par value $0.0001 per share

Filing Manager
BTC Development Sponsor LLC
Reporting Manager
BTC Development Sponsor LLC
Security
BTC Development Corp. Class A Ordinary Shares, par value $0.0001 per share
Shares outstanding
34,740,191 shares
Disclosed Ownership
5,103,334 shares
Ownership
15%
Form type
SCHEDULE 13D
Filing time
06 Oct 2025, 19:13:00 UTC
Date of event
01 Oct 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
BTC Development Sponsor LLC 15% 5,103,334 0 5,103,334 /s/ Betsy Z. Cohen Betsy Z. Cohen 0002086269
COHEN BETSY Z 15% 5,103,334 0 5,103,334 /s/ Betsy Z. Cohen Betsy Z. Cohen 0001168754
Young Bracebridge H Jr 15% 5,103,334 0 5,103,334 /s/ Bracebridge H. Young, Jr. Bracebridge H. Young, Jr. 0001894252
Kirkwood Jonathan 15% 5,103,334 0 5,103,334 /s/ Jonathan Kirkwood Jonathan Kirkwood 0002057403