Welara Capital Partners LLC Series 3, a more than 10% holder of Standard Nuclear, Inc., reported the automatic conversion of its preferred stock into common shares in connection with the company’s initial public offering of Class A Common Stock. On 2026-07-17 it converted 15,000,000 Series Seed-1, 3,515,018 Series A, and 1,728,076 Series A-2 Preferred Stock into an equal number of Class A Common Stock at a 1-for-1 ratio. Following these conversions, it holds 20,243,094 Class A Common shares directly and no longer holds those preferred series.
Standard Nuclear, Inc. has a significant shareholder, Welara Capital Partners LLC Series 3, reporting sizeable preferred stock holdings that are convertible into Class A Common Stock. The holder reports 15,000,000.0000 underlying shares via Series Seed-1 Preferred Stock, 3,515,018.0000 via Series A Preferred Stock, and 1,728,076.0000 via Series A-2 Preferred Stock.
Each preferred series may be converted into Class A Common Stock at the holder’s option at any time and will automatically convert at a 1-for-1 ratio in connection with completion of an initial public offering of Class A Common Stock. These preferred securities have no expiration date.
Standard Nuclear, Inc. CEO Kurt Amir Terrani reported a series of bona fide gifts of Class A common stock on 2026-07-20, transferring shares from his direct holdings to five irrevocable family trusts. The trusts now hold 629,374, 175,000, 60,000, 245,000 and 175,000 shares, all at $0.0000 per share. The gifts qualify as a permitted exception under the IPO lock-up, and Terrani is deemed to have an indirect beneficial interest but disclaims beneficial ownership of shares held by each trust.
Standard Nuclear, Inc. reporting 10% owners Fundomo SN-001, LP and Fundomo SN-002, LP reported automatic conversions of preferred stock into Class A Common Stock on July 17, 2026, immediately before the company’s initial public offering. Converted holdings included 3,849,782 Series A, 2,027,576 Series A-2, and 14,000,000 Series Seed-1 Preferred shares, all on a 1-for-1 basis, eliminating these derivative positions.
The amended insider report clarifies that these preferred shares were disposed of upon conversion rather than acquired, correcting a clerical error in how the prior report classified the derivative disposition. Affiliates and managers, including ST-1014 Fund I and Corey Nobile, may share voting or dispositive power over some positions, but beneficial ownership is disclaimed except for any pecuniary interest, and voting and dispositive power over ST-1014 Fund I is delegated to an unaffiliated investment adviser.
Standard Nuclear, Inc. reported that construction is substantially complete at its new SN-TN and SN-ID advanced nuclear fuel production facilities in Tennessee and Idaho, which it describes as a major milestone in expanding TRISO fuel production.
Each facility is initially expected to add up to 1 metric ton of uranium (MTU) of annual TRISO capacity, with combined additional capacity of up to 5 MTU per year when fully scaled, compared with up to 0.5 MTU annually at the existing SN-0 facility in Oak Ridge, Tennessee.
The U.S. Department of Energy has approved Preliminary Documented Safety Analyses for both new facilities, which are intended to operate as Hazard Category 2 nuclear facilities once fully authorized. Standard Nuclear is also building another fuel line in Washington state through its joint venture with Framatome, Inc., leveraging Framatome’s existing NRC license.
Fundomo SN-001, LP and Fundomo SN-002, LP reported automatic 1-for-1 conversion of their Series Seed-1, Series A and Series A-2 Preferred Stock into Class A Common Stock of Standard Nuclear, Inc. immediately before the IPO. The conversions covered 19,877,358 Class A shares across affiliated entities, with voting and dispositive power over ST-1014 Fund I’s shares delegated to an unaffiliated adviser and beneficial ownership disclaimed except for pecuniary interests.
Standard Nuclear, Inc. adopted a new governance framework in connection with the closing of its initial public offering of Class A common stock, par value $0.00001 per share. On July 17, 2026, the company filed its sixth amended and restated certificate of incorporation with the Delaware Secretary of State, and its amended and restated bylaws became effective.
These documents had been previously approved by the board of directors and stockholders to become effective immediately prior to the IPO closing. Key provisions are described in the Prospectus section titled Description of Capital Stock relating to the Registration Statement on Form S-1 (File No. 333-296922). The full charter and bylaws are included as Exhibits 3.1 and 3.2.
Marrocco Keeley Rose reported acquisition or exercise transactions in this Form 4 filing.
Standard Nuclear, Inc. reported that Chief Operating Officer Marrocco Keeley Rose received two equity compensation awards in the form of restricted stock units (RSUs) tied to Class A common stock. On July 15, 2026, Rose was granted RSUs covering 200,000 shares, vesting over four years, with 25% vesting on June 1, 2027 and the remainder in equal monthly installments, subject to continued service. On July 17, 2026, Rose received additional RSUs covering 364,625 shares, vesting over three years in quarterly 1/12th installments, also subject to continued service, resulting in 3,564,625 shares of Class A common stock held directly after this award.
Standard Nuclear, Inc. director Donald A. Moul reported a grant classified as a grant, award, or other acquisition10,964 shares
Miller Austin Scott reported acquisition or exercise transactions in this Form 4 filing.
Standard Nuclear, Inc. granted director Miller Austin Scott an equity award covering 11,436 shares of Class A common stock through restricted stock units. These RSUs vest 100% on the earlier of the day before the 2027 Annual Meeting of Stockholders or the one-year anniversary of the grant date, contingent on his continued board service.