SMR Filing
4Filing Date: Jun 2, 2026

NUSCALE POWER Corp (SMR) · Insider Trading (Form 4) SEC Filing

Statement of Changes in Beneficial Ownership

descriptionView SEC Filing
ACC: 0001822966-26-000065open_in_new
Total Value$0
Trades1
Insiders1

Transaction Details

WALTERS DIANA J
Director·Direct
Grant · Acquire
Class A Common Stock
Shares+8.68K
Price$0.00
Total Value$0
Shares Owned After20.98K
Transaction DateMay 29, 2026
Footnotes ▸

The reporting person received an award of 8,681 restricted stock units on May 29, 2026, which vest quarterly in four equal installments over one year, with the first such vesting event occurring on August 29, 2026. Each restricted stock unit represents the right to receive one share of Class A Common Stock upon vesting. Pursuant to the issuer's Deferred Compensation Plan for Non-Employee Directors, the reporting person elected to defer receipt of the underlying shares of Class A Common Stock upon vesting of the restricted stock units and will instead receive an equal number of shares of phantom stock. Each share of phantom stock represents the right to receive one share of Class A Common Stock upon the reporting person's separation from service with the issuer.

Post-Transaction Holdings

WALTERS DIANA J
SecuritySharesChange
Class A Common Stock20.98K+8.68K (70.61%)
Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-29 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: NUSCALE POWER Corp (SMR) CIK: 0001822966 --- Reporting Owner --- Name: WALTERS DIANA J CIK: 0001007203 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-05-29 | Code: A (Grant or award) Shares: +8,681 | Price: $0.00 Shares Owned After: 20,976 | Ownership: D (Direct) Footnotes: [F1] The reporting person received an award of 8,681 restricted stock units on May 29, 2026, which vest quarterly in four equal installments over one year, with the first such vesting event occurring on August 29, 2026. Each restricted stock unit represents the right to receive one share of Class A Common Stock upon vesting. Pursuant to the issuer's Deferred Compensation Plan for Non-Employee Directors, the reporting person elected to defer receipt of the underlying shares of Class A Common Stock upon vesting of the restricted stock units and will instead receive an equal number of shares of phantom stock. Each share of phantom stock represents the right to receive one share of Class A Common Stock upon the reporting person's separation from service with the issuer. --- Footnotes (Complete Index) --- F1: The reporting person received an award of 8,681 restricted stock units on May 29, 2026, which vest quarterly in four equal installments over one year, with the first such vesting event occurring on August 29, 2026. Each restricted stock unit represents the right to receive one share of Class A Common Stock upon vesting. Pursuant to the issuer's Deferred Compensation Plan for Non-Employee Directors, the reporting person elected to defer receipt of the underlying shares of Class A Common Stock upon vesting of the restricted stock units and will instead receive an equal number of shares of phantom stock. Each share of phantom stock represents the right to receive one share of Class A Common Stock upon the reporting person's separation from service with the issuer. --- Signature --- /s/ Patrick C. Cannon, attorney-in-fact for Diana J. Walters (2026-06-02)

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