Mark N. Tompkins - Jul 23, 2025 Form 4 Insider Report for Deep Isolation Nuclear, Inc.

Role
The reporting person is a former director and former 10% owner in the Issuer.
Signature
/s/ Mark N. Tompkins
Transactions as of
Jul 23, 2025
Transactions value $
$0
Form type
4
Date filed
7/25/2025, 09:00 PM
Previous filing
Jul 18, 2025
Next filing
Aug 28, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tompkins Mark N. The reporting person is a former director and former 10% owner in the Issuer. APP. 1, VIA GUIDINO 23, LUGANO-PARADISO, SWITZERLAND /s/ Mark N. Tompkins 2025-07-25 0001455971

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction Common Stock Other $0 -2.83M -59.96% $0.00 1.89M Jul 23, 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Mark N. Tompkins is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 As a condition under the terms of an Agreement and Plan of Merger and Reorganization, dated as of July 23, 2025, and pursuant to the terms of a stock cancellation agreement, the reporting person voluntarily surrendered and cancelled for no consideration 2,833,333 shares of Issuer's common stock prior to the consummation of the Merger on July 23, 2025. The reporting person resigned as a director of the Issuer upon consummation of the Merger.

Remarks:

The reporting person is a former director and former 10% owner in the Issuer.