v3.26.1
Related Party Transactions
6 Months Ended
Jun. 30, 2026
Related Party Transactions [Abstract]  
Related Party Transactions Related Party Transactions
SAFE Notes
During the fourth quarter of 2024, the Company received $33.5 million in funding commitments from various investors pursuant to SAFE Notes, including related parties through one Company executive who exerts significant influence over certain SAFE investors. The related party SAFE investors are entities affiliated with a member of the Company’s Board of Directors who also served as CEO Director. The SAFE Notes were classified as liabilities and remeasured to fair value at each reporting period.
On February 13, 2025, the Company completed its Series Seed Preferred Stock equity financing, which triggered the automatic conversion of all outstanding SAFE Notes. The related party SAFE Notes converted into shares of Series Seed-1 Preferred Stock on the same terms and conditions as all other SAFE investors, including the same valuation cap of $20.0 million and discount rate of 50%. The conversion was effected at a price of $0.50 per share, and the related-party SAFEs converted into an aggregate of 9,850,000 shares of Series Seed-1 Preferred Stock. Refer to Note 7, Redeemable Preferred Stock, for further discussion of the conversion mechanics and the remeasurement of SAFE liabilities to fair value at the conversion date.
As of June 30, 2026 and December 31, 2025, no SAFE Notes remained outstanding to related parties or otherwise. The remeasurement gain recognized in the Consolidated Statements of Operations for the period from January 1, 2025, through the conversion date attributable to the related-party SAFE Notes was $853,000. This amount was recognized as a gain on debt extinguishment as a result of the rescission.
Advances from Related Parties
During 2024, the Company received non-interest-bearing cash advances from Decisive Point — Standard Nuclear II, a related party. As the advances were non-interest-bearing, the amount payable equaled the amount received.
In connection with the Series Seed Preferred Stock financing, on February 13, 2025, the Company reclassified a short-term cash advance of $1,263,500 from a related party, Decisive Point — Standard Nuclear II, together with a separate non-related-party short-term cash advance of $1,231,333, from liabilities to equity. The total reclassification of $2,494,833 was applied as additional consideration for Series Seed preferred equity. As of June 30, 2026 and December 31, 2025, no short-term cash advance liabilities remained outstanding.
Professional Services Agreement

During the second quarter of 2026, the Company approved a professional services agreement with a related party, who is the spouse of an officer, and at the time also a Company director, to provide project and schedule management support services for the Company’s manufacturing operations. The agreement has a performance period from April 1, 2026 through June 30, 2026 and provides for compensation of $13,600 per month, plus reimbursement of certain pre-approved expenses. The Company reported $40,800 of consulting expenses for the three and six months ended June 30, 2026.
Related-Party Participation in Equity Financings
In connection with the Series Seed Preferred Stock financing that closed on February 13, 2025, related-party SAFE investors received an aggregate of 9,850,000 shares of Series Seed-1 Preferred Stock upon automatic conversion of their SAFE Notes, as described above. The conversion terms were identical to those applicable to all other SAFE investors.
On August 14, 2025, the Company completed its Series A Preferred Stock financing, issuing 26,948,464 shares of Series A Preferred Stock at $2.5976 per share for aggregate gross proceeds of approximately $70.0 million. Two entities within the Decisive Point affiliated group participated in the Series A Preferred Stock Financing on the same terms and conditions as all unrelated investors.
The related-party Series A investment of approximately $8.8 million represents 12.6% of the total $70.0 million Series A round. Both entities purchased Series A Preferred Stock at the same price per share ($2.5976), with the same rights, preferences, privileges, and restrictions as all other Series A investors, as set forth in the Series A Preferred Stock Purchase Agreement dated August 14, 2025.
On January 23, 2026, the Company completed its Series A-2 Preferred Stock financing, issuing 14,193,030 shares of Series A-2 Preferred Stock at $4.932 per share for aggregate gross proceeds of approximately $70.0 million. Two entities within the Decisive Point affiliated group participated in the Series A-2 Preferred Stock Financing on the same terms and conditions as all unrelated investors.
The related-party Series A-2 investment of approximately $5.0 million represents 7.1% of the total Series A-2 Preferred Stock round. Both entities purchased Series A-2 Preferred Stock at the same price per share ($4.932), with the same rights, preferences, privileges, and restrictions as all other Series A-2 investors, as set forth in the Series A-2 Preferred Stock Purchase Agreement dated January 23, 2026.
Standard Nuclear x Framatome LLC

The Joint Venture is a related party of the Company. Under the Joint Venture's LLC Operating Agreement, the Company licenses intellectual property related to advanced fuel product technology and manufacturing know-how to the Joint Venture and leases specialized fuel-manufacturing equipment to the Joint Venture. During the three and six months ended June 30, 2026 and 2025, the Company did not recognize any license income or equipment lease income from the Joint Venture. As of June 30, 2026 and December 31, 2025, $0.9 million and $0 million, respectively, were due to the Joint Venture, included in Accounts Payable. See Note 4, Equity Method Investment, for additional discussion.

Neutroelectric, LLC

In September 2025, the Company entered into a Master Services Agreement with Neutroelectric, LLC (“Neutroelectric”), pursuant to which Neutroelectric provides engineering and other services to the Company on a project basis under individually negotiated statements of work. Neutroelectric is owned and operated by the spouse of a company officer and director. The Master Services Agreement has a two-year term and provides for Neutroelectric to furnish services to the Company as an independent contractor, with compensation determined on a per-project basis as set forth in each statement of work. As of June 30, 2026, the Company has incurred expenses of approximately $350,000 in the aggregate under the Master Services Agreement and related statements of work.
Container Technologies Industries, LLC Subrecipient Agreement

In April 2026, the Company entered into a subrecipient agreement (the "Subrecipient Agreement") with Container Technologies Industries, LLC ("CTI") in connection with a cooperative agreement awarded by the DOE to CTI, as prime recipient, for the design, development, and licensing of a fuel transportation container for HALEU nuclear fuels (the "Container Project"). At the time the Subrecipient Agreement was entered into, the President of CTI was the spouse of an officer and director of the Company, and CTI was accordingly a related party of the Company. That individual resigned as President of CTI effective June 30, 2026, and CTI ceased to be a related party of the Company as of that date. The transactions described below occurred, and the Subrecipient Agreement was entered into, while CTI was a related party.

Under the Subrecipient Agreement, the Company leads, funds, and controls all NRC licensing activities for the container and will be the holder and owner of the resulting NRC license, is solely responsible for its allocated cost share under the DOE-approved budget and for all NRC licensing costs, and submits itemized invoices to CTI monthly, with CTI obligated to reimburse the Company for 50% of allowable expenditures within five days of CTI's receipt of the corresponding DOE funds. Following successful design and licensing of the container, the Company intends to procure production units from CTI, subject to mutual agreement on final commercial terms.

During the three and six months ended June 30, 2026, the Company incurred $0.1 million of costs under the Container Project. The costs are recorded in research and development expenses, net of $56,036 invoiced to CTI. No reimbursements were received from CTI during the period, and $56,036 was due from CTI and included in accounts receivable as of June 30, 2026. There were no comparable transactions during the three and six months ended June 30, 2025.

Promissory Notes

In June 2025, the Company issued to Keeley Marrocco, its Chief Operating Officer, 2,160,000 shares of Class B common stock at a purchase price of $0.21 per share for a total purchase price of $453,600 pursuant to a Restricted Stock Purchase Agreement. The Company concurrently issued to Kurt Terrani, its Chief Executive Officer (“CEO”), 3,425,000 shares of Class B common stock at a purchase price of $0.21 per share for a total purchase price of $719,250. In June 2025, in connection with the restricted stock purchases by Ms. Marrocco and Mr. Terrani, the Company loaned each of them the full purchase price of their respective shares ($453,600 and $719,250, respectively) under promissory notes bearing interest at 4.07% per annum, compounded annually. In May 2026, in connection with Kevin Harrill's restricted stock purchase, the Company loaned Mr. Harrill the full purchase price of his shares under two promissory notes in the aggregate original principal amount of $1,538,898, bearing interest at 4.08% per annum, compounded annually. See Note 10, Share-Based Compensation. Each promissory note is secured by a pledge of the shares purchased thereunder, is 50% recourse to the applicable officer personally and 50% nonrecourse (secured solely by the pledged shares), and was due in full on the ninth anniversary of issuance or earlier upon the occurrence of certain events, including termination of employment or completion of the Company's IPO. As of June 30, 2026, the aggregate outstanding principal under these promissory notes was $2,711,748. See Note 14, Subsequent Events, for a discussion of the repayment of the promissory notes, including accrued interest, in connection with the completion of the Company's IPO.
Investors' Rights Agreement

The Company is party to an Amended and Restated Investors' Rights Agreement, dated as of January 23, 2026 (the "Investor Rights Agreement"), by and among the Company and certain of its stockholders, including Kurt Terrani, the Company's CEO, Thomas Hendrix, the Company's Founder and Executive Chairman, Keeley Marrocco, the Company's Chief Operating Officer, and entities affiliated with Decisive Point Group, LLC, Welara Capital Partners, Fundomo, and Washington Harbour Partners, each of which beneficially owns more than 5% of the Company's capital stock. The Investor Rights Agreement grants the parties thereto demand, piggyback, and Form S-3 registration rights with respect to their shares. Upon completion of the IPO in July 2026, all provisions of the Investor Rights Agreement terminated other than the registration rights, which survive for five years from the date of the Company's final IPO prospectus or, with respect to any particular stockholder, until earlier eligibility for unrestricted resale under Rule 144. See Note 14, Subsequent Events, and Exhibit 4.2 to this Quarterly Report.