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

Reporting relationship: The reporting person is a former director and former 10% owner in the Issuer.
Issuer ticker: N/A
Reported as of: 23 Jul 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 25 Jul 2025, 21:00:02 UTC
Prior SEC filing: 18 Jul 2025
Next SEC filing: 28 Aug 2025
Source filing: View source filing
Reporting owner signature: /s/ Mark N. Tompkins

Key filing fact

Mark N. Tompkins filed Form 4 for Deep Isolation Nuclear, Inc. on 25 Jul 2025.

Key facts

This page summarizes Mark N. Tompkins's Form 4 filing for Deep Isolation Nuclear, Inc..
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 25 Jul 2025, 21:00.

Change

Previous filing in this sequence was filed on 18 Jul 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001455971 Primary reporting owner

Tompkins Mark N.

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

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

No ticker transaction

Common Stock

Other

Transaction value: $0
Shares: -2,833,333
Change %: -60%
Price: $0.000000
Shares after: 1,891,667
Date: 23 Jul 2025
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Mark N. Tompkins is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 1 footnote

Footnote 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.

SEC remarks

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