Mark Tompkins - Sep 30, 2025 SCHEDULE 13G/A Report for Deep Isolation Nuclear, Inc. Common Stock, par value $0.0001 per share

Filing Manager: Mark Tompkins
Reporting Manager: Mark N. Tompkins
Security: Deep Isolation Nuclear, Inc. Common Stock, par value $0.0001 per share
Shares outstanding: 57.4M shares
Disclosed Ownership: 2.28M shares
Ownership: 3.96%
Form type: SCHEDULE 13G/A
Date filed: 11/14/2025, 03:36 PM
Date of event: Sep 30, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Mark N. Tompkins	3.96%	2.28M	2.28M	0	/s/ Mark N. Tompkins	Mark N. Tompkins