Rodney Baltzer - 06 Oct 2026 Form 4 Insider Report for Deep Isolation Nuclear, Inc. (DBHL)

Reporting relationship: President and CEO, Director
Issuer ticker: DBHL
Reported as of: 06 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 08 Oct 2026, 20:27:53 UTC
Prior SEC filing: 03 Oct 2025
Source filing: View source filing
Reporting owner signature: /s/ Rodney Baltzer

Key filing fact

Rodney Baltzer filed Form 4 for Deep Isolation Nuclear, Inc. (DBHL) on 08 Oct 2026.

Key facts

This page summarizes Rodney Baltzer's Form 4 filing for Deep Isolation Nuclear, Inc. (DBHL).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 08 Oct 2026, 20:27.

Change

Previous filing in this sequence was filed on 03 Oct 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 0002080757 Primary reporting owner

Baltzer Rodney

Relationship: President and CEO, Director
Address: C/O DEEP ISOLATION NUCLEAR, INC., 5717 LEGACY DRIVE, STE 250, OFFICE 2079, PLANO
Signature: /s/ Rodney Baltzer
Signature date: 08 Oct 2026

Reported non-derivative transactions

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

DBHL transaction

Common Stock

Award

Transaction value
Shares: +82,054
Change %: +7.6%
Price: $0.000000^*
Shares after: 1,161,764
Date: 06 Oct 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

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

DBHL transaction Derivative

Stock Option (right to buy)

Award

Transaction value
Shares: +93,212
Change %
Price: $0.000000^*
Shares after: 93,212
Date: 06 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 93,212
Exercise price: $3.50
Footnotes: F2

DBHL transaction Derivative

Stock Option (right to buy)

Award

Transaction value
Shares: +38,526
Change %
Price: $0.000000^*
Shares after: 38,526
Date: 06 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 38,526
Exercise price: $3.50
Footnotes: F2, F3

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents a grant of 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 as follows: 20,514 RSUs on September 29, 2027, 20,513 RSUs on September 29, 2028, 20,514 RSUs on September 29, 2029 and 20,513 RSUs on September 29, 2030, subject to the Reporting Person's continued service through each vesting date.

Footnote F2

Represents a grant of incentive stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 22,500 option shares on September 29, 2027, with the remaining option shares vesting in monthly installments on the 29th day of each month (or the last day of the month, if earlier) from January through September of each of 2028, 2029 and 2030, in each case subject to the Reporting Person's continued service through each vesting date.

Footnote F3

Represents a grant of non-qualified stock option pursuant to the Deep Isolation Nuclear, Inc. 2025 Equity Incentive Plan. The option shall vest as follows: 10,435 option shares on September 29, 2027, 2,201 option shares on September 29, 2028 and 1,190 option shares on September 29, 2029, with the remaining option shares vesting in monthly installments of 2,744 or 2,745 option shares on each of October 29, November 29 and December 29 of 2027, 2028 and 2029, in each case subject to the Reporting Person's continued service through each vesting date.