Elizabeth Muller - Nov 19, 2025 Form 4 Insider Report for Deep Isolation Nuclear, Inc.

Role: Director, 10%+ Owner
Signature: /s/ Elizabeth Muller
Transactions as of: Nov 19, 2025
Transactions value $: $0
Form type: 4
Date filed: 11/21/2025, 11:12 AM
Previous filing: Oct 7, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Muller Elizabeth	Director, 10%+ Owner	C/O DEEP ISOLATION NUCLEAR, INC., 2001 ADDISON STREET, SUITE 300, BERKELEY	/s/ Elizabeth Muller	2025-11-21	0002081850

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction		Common Stock	Award	$0	+43.3K	+0.37%	$0.00	11.7M	Nov 19, 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs shall fully vest in 1 year and are subject to a deferral based on the earlier to occur of a change of control, a separation of service as a director, and death.