Joseph Eugene Nelson - 27 May 2026 Form 4 Insider Report for Deep Isolation Nuclear, Inc.

Reporting relationship: Chief Financial Officer
Issuer ticker: DBHL on OTC
Reported as of: 27 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 29 May 2026, 15:08:25 UTC
Prior SEC filing: 26 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Joseph Nelson

Key filing fact

Joseph Eugene Nelson filed Form 4 for Deep Isolation Nuclear, Inc. on 29 May 2026.

Key facts

This page summarizes Joseph Eugene Nelson's Form 4 filing for Deep Isolation Nuclear, Inc..
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 29 May 2026, 15:08.

Change

Previous filing in this sequence was filed on 26 Feb 2026.
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 0001879973 Primary reporting owner

Nelson Joseph Eugene

Relationship: Chief Financial Officer
Address: C/O DEEP ISOLATION NUCLEAR, INC., 2001 ADDISON STREET, SUITE 300, BERKELEY
Signature: /s/ Joseph Nelson
Signature date: 29 May 2026

Reported non-derivative transactions

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

No ticker transaction

Common Stock

Award

Transaction value
Shares: +100,000
Change %
Price: $0.000000^*
Shares after: 100,000
Date: 27 May 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

No ticker transaction Derivative

Stock Option (right to buy)

Award

Transaction value
Shares: +40,000
Change %
Price: $0.000000^*
Shares after: 40,000
Date: 27 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 40,000
Exercise price: $3.00
Footnotes: F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Represents a grant of 100,000 restricted stock units ("RSUs") to the Reporting Person pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. Each RSU represents a contingent right to receive one share of common stock upon vesting. The RSUs shall vest in equal annual installments of 25% over a period of four years beginning on February 24, 2027, subject to the Reporting Person's continued service through each vesting date.

Footnote F2

Represents a grant of stock options pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The options shall vest over a period of four years beginning on February 24, 2027, whereby 1/4th of the option shares shall vest on that date and 1/48th of the option shares shall vest monthly thereafter, subject to the Reporting Person's continued service through each vesting date.