Deep Fission Director Thomas Glanville Receives 19,156 Restricted Stock Units in July Award

Director Equity Compensation at Deep Fission

Thomas S. Glanville, identified in the filing as serving in a director capacity at Deep Fission, Inc., received a grant of restricted stock units as part of what appears to be a board compensation program. The award of 19,156 units was issued on July 23, 2026, according to the regulatory document filed with the Securities and Exchange Commission. This type of equity grant is standard practice among publicly traded companies seeking to align director interests with shareholder returns and provide non-cash compensation for board service.

The structure of the award—with units vesting one year from the grant date—follows common practices in corporate governance. By tying the vesting to a future date contingent on continued service, Deep Fission establishes a mechanism to retain board members and ensure ongoing commitment to company oversight and direction. The filing indicates that Glanville holds the units in direct form, meaning he retains full beneficial ownership rights subject to the vesting conditions outlined in the disclosure.

Vesting Schedule and Service Requirements

The restricted stock units granted to Glanville are subject to a one-year vesting period, with a vesting date of July 20, 2027. Each unit represents a contingent right to receive one share of Deep Fission common stock upon vesting, provided that the director maintains his service relationship with the company through the specified vesting date. This conditional structure is a standard feature of equity compensation arrangements, as it incentivizes continued participation in board activities and strategic decision-making.

The filing does not disclose whether acceleration provisions exist that would allow for earlier vesting under certain circumstances, such as a change in control or the director's departure due to specified reasons. Investors monitoring insider ownership changes may wish to track whether Glanville maintains his director position through the July 2027 vesting deadline or whether any subsequent disclosures indicate changes to his service status or the terms of his equity holdings.

Beneficial Ownership Following the Award

Following the acquisition of the restricted stock units, Glanville's total beneficial ownership in derivative securities stands at 19,156 units held in direct form, according to the filing. The disclosure indicates that prior to this transaction, the director held no previously reported derivative or non-derivative securities in the company, suggesting this represents an initial equity grant or the first reported transaction. The absence of any indication of indirect ownership through other entities or arrangements means that Glanville's equity stake is held in a straightforward manner without intermediaries.

The filing notes that no non-derivative securities were acquired or disposed of in connection with this transaction, meaning the grant did not involve any immediate issuance of shares or settlement of equity. Instead, the restricted stock units remain contingent rights until the vesting conditions are satisfied on July 20, 2027. At that point, assuming the vesting conditions are met, the units will convert into an equivalent number of shares of Deep Fission common stock, increasing Glanville's share count in the company.

No Monetary Consideration for the Grant

The filing indicates that the restricted stock units were granted at no monetary cost to Glanville, as reflected by the $0 price notation in the derivative securities transaction table. This is consistent with typical equity compensation arrangements where grants are issued as part of director remuneration packages rather than through purchase transactions. The absence of a monetary transaction price suggests the units were awarded as compensation for board service, similar to salary or other forms of non-cash consideration.

The filing does not disclose the fair market value of the restricted stock units at the time of grant or any detailed information about the compensation package of which this award forms a part. Investors seeking additional context about Deep Fission's board compensation practices and the valuation methodology used for equity grants may need to consult the company's proxy statement or other corporate governance disclosures that provide more detailed compensation information.

Filing Compliance and Signature Details

The disclosure document was signed on behalf of Glanville by Jon Gordon, acting as attorney-in-fact, on July 27, 2026. This authorized signing arrangement indicates that Glanville delegated the responsibility for filing the regulatory statement to a legal representative, which is a common practice among corporate insiders. The attorney-in-fact relationship suggests an established arrangement for handling securities law compliance matters on behalf of the director.

The filing was completed in accordance with Section 16(a) of the Securities Exchange Act of 1934, which requires directors, officers, and significant shareholders to disclose changes in their beneficial ownership of company securities. The document meets the standard requirements for Form 4 submissions and contains the necessary certification language regarding the accuracy of the reported information. The timely filing of this disclosure demonstrates compliance with SEC reporting obligations regarding insider transactions.

Implications for Shareholders and Market Observers

The grant of restricted stock units to director Glanville reflects ongoing equity compensation practices at Deep Fission and demonstrates the company's commitment to director recruitment and retention through non-cash incentives. For shareholders, equity grants to board members represent an alignment mechanism designed to ensure that directors maintain stakes in company performance and shareholder value creation. The one-year vesting period provides a timeframe during which investors can monitor whether Glanville continues to serve in his director capacity and whether the underlying business conditions support the vesting of these units.

Investors tracking insider ownership changes may note that this transaction adds to the director's equity position in the company. As the vesting date approaches in July 2027, observers may watch for additional disclosures indicating whether Glanville retains his director status or whether any changes to his role or holdings occur. The cumulative effect of equity grants to multiple board members and executives can provide insight into management's confidence in the company's prospects and the overall strategic direction being pursued.

Transaction Documentation and Record-Keeping

The filing confirms that the restricted stock unit award was documented as a derivative security transaction rather than an outright grant of common shares. This classification reflects the contingent nature of the units prior to vesting. The detailed transaction record maintained by Deep Fission's corporate records department would contain additional documentation regarding the specific terms and conditions of the grant, including any plan documents or board resolutions authorizing the award to Glanville.

The filing itself serves as the official SEC record of this beneficial ownership change and constitutes a public disclosure of Glanville's equity compensation arrangement. Investors accessing SEC EDGAR databases or company investor relations resources can review this filing to track the director's holdings and compensation. The standardized format of the Form 4 disclosure ensures that all material information regarding the transaction is captured in a manner consistent with SEC requirements and comparable to similar disclosures from other public companies.

What Investors Should Monitor Going Forward

Investors interested in tracking Deep Fission's insider ownership changes should monitor future Form 4 filings to observe whether additional equity grants are issued to Glanville or other board members and executives. Changes in the timing, size, or structure of equity awards can signal shifts in board compensation strategy or adjustments to incentive programs. Additionally, any disclosures regarding early vesting of Glanville's units or changes to his director status would be material information for shareholders to note.

The filing does not provide guidance regarding future equity grants or compensation arrangements, so investors should await additional announcements or proxy statement disclosures for information about the broader compensation philosophy at Deep Fission. Annual proxy statements typically provide detailed compensation tables and explanations of the rationale behind equity grants to board members, offering context that complements the transaction-level detail provided in Form 4 filings. Shareholders reviewing the company's compensation practices may compare Glanville's award to those received by other directors to assess alignment and consistency in the board's compensation structure.