Richard Muller - Sep 5, 2025 SCHEDULE 13D Report for DEEP FISSION, INC. Common Stock, $0.0001 par value per share

Filing Manager: Richard Muller
Reporting Manager: Muller Richard
Security: DEEP FISSION, INC. Common Stock, $0.0001 par value per share
Shares outstanding: 51.2M shares
Disclosed Ownership: 5.43M shares
Ownership: 10.6%
Form type: SCHEDULE 13D
Date filed: 9/23/2025, 09:44 PM
Date of event: Sep 5, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Muller Richard	10.6%	5.43M	5.43M	0	/s/ Richard Muller	Richard Muller/Director	0002081872