David A. Tonnel - 24 Mar 2026 Form 4 Insider Report for NUSCALE POWER Corp (SMR)

Reporting relationship: Chief Accounting Officer
Issuer ticker: SMR
Reported as of: 24 Mar 2026
Net transaction value: -$27,125
SEC form: 4
Accepted by SEC: 26 Mar 2026, 16:02:07 UTC
Prior SEC filing: 03 Mar 2026
Source filing: View source filing
Reporting owner signature: Patrick C. Cannon, attorney-in-fact for David A. Tonnel

Key filing fact

David A. Tonnel filed Form 4 for NUSCALE POWER Corp (SMR) on 26 Mar 2026.

Key facts

This page summarizes David A. Tonnel's Form 4 filing for NUSCALE POWER Corp (SMR).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 26 Mar 2026, 16:02.

Change

Previous filing in this sequence was filed on 03 Mar 2026.
Current net transaction value: -$27,125.

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 0001318251 Primary reporting owner

Tonnel David A

Relationship: Chief Accounting Officer
Address: 1100 NE CIRCLE BLVD., SUITE 350, CORVALLIS
Signature: Patrick C. Cannon, attorney-in-fact for David A. Tonnel
Signature date: 26 Mar 2026

Reported non-derivative transactions

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

SMR transaction

Class A Common Stock

Options Exercise

Transaction value
Shares: +9,710
Change %
Price
Shares after: 9,710
Date: 24 Mar 2026
Ownership: Direct
Footnotes: F1

SMR transaction

Class A Common Stock

Sale

Transaction value: $27,125
Shares: -2,290
Change %: -24%
Price: $11.84
Shares after: 7,420
Date: 25 Mar 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

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

SMR transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -9,710
Change %: -33%
Price: $0.000000^*
Shares after: 19,421
Date: 24 Mar 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 9,710
Exercise price
Footnotes: F1, 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

Restricted stock units convert into Class A Common stock on a one-for-one basis.

Footnote F2

The sales reported on this Form 4 represent shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. The sales were to satisfy tax withholding obligations to be funded by a "sell to cover" transaction.

Footnote F3

On March 25, 2025, the reporting person was granted 29,131 restricted stock units, vesting in three equal installments beginning on the first anniversary of the grant date.