SEC Form 4 · accession 0001628280-26-048742
Standard Nuclear, Inc. · STDN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Keeley Rose Marrocco
Officer — Chief Operating Officer
Period of report
Jul 15, 2026
Accepted (ET)
Jul 17, 2026 · 9:14 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0002086716
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A common stockF1 | Jul 15, 2026 | A | 200,000 | $0.00 | A | 3,200,000 | D | |
| Class A common stockF2 | Jul 17, 2026 | A | 364,625 | $0.00 | A | 3,564,625 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Represents shares of Class A Common Stock underlying an award of restricted stock units ("RSUs"). The RSUs will vest over four years, with 25% vesting on June 1, 2027 and the remainder vesting in equal monthly installments thereafter, subject to the Reporting Person's continued service through each vesting date.
- F2Represents shares of Class A Common Stock underlying an award of RSUs. The RSUs will vest over three years in quarterly installments of 1/12th, subject to the Reporting Person's continued service through each vesting date.