SEC Form 4 · accession 0001628280-26-049241

Standard Nuclear, Inc. · STDN

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Table I — non-derivative securities

Table II — derivative securities

Explanation of responses

• F1Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the "IPO"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period
• F2These shares are held by the Terrani 2026 Irrevocable Family Trust, dated June 24, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Denise Sarah Castley serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust.
• F3These shares are held by the DSC 2026 Irrevocable Trust, dated June 24, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Denise Sarah Castley serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust.
• F4These shares are held by the MT 2026 Irrevocable Trust, dated July 10, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Merran Terrani serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust.
• F5These shares are held by the EKG 2026 Irrevocable Trust, dated June 25, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Leila Karim Tehrani serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust.
• F6These shares are held by the LKT 2026 Irrevocable Trust, dated June 25, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Leila Karim Tehrani serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust

Remarks

The Reporting Person serves as Chief Executive Officer, President and Director of the Issuer.