Company filings profile · CIK 0002086716
Standard Nuclear, Inc. — SEC filings & insider activity.
Real, source-linked SEC EDGAR activity for Standard Nuclear, Inc. (STDN): 48 filings in the last 90 days vs 4 in the prior 90 (filing-velocity rising ↑ · 12×). Latest material 8-K events, insider Form-4 transactions, and periodic reports — monitored for change.
✔ Verified against the public SEC EDGAR filing record as of Sep 19, 2026. Source-linked, daily-refreshed.
Material 8-K events — Standard Nuclear, Inc.
8-K disclosures decoded by item code (the material events: agreements, results, control/management changes, impairments, restatements).
| Filed | Event | |
|---|---|---|
| Sep 8, 2026 | Regulation FD Disclosure; Financial Statements and Exhibits | ↗ |
| Aug 27, 2026 | Other Events; Financial Statements and Exhibits | ↗ |
| Aug 27, 2026 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Aug 20, 2026 | Other Events; Financial Statements and Exhibits | ↗ |
| Aug 14, 2026 | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Jul 22, 2026 | Other Events; Financial Statements and Exhibits | ↗ |
| Jul 21, 2026 | Amendments to Bylaws/Charter; Financial Statements and Exhibits | ↗ |
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Insider transactions (Form 4 / 3 / 5)
Recent filings
| Filed | Form | Detail | |
|---|---|---|---|
| Sep 8, 2026 | 8-K | Regulation FD Disclosure; Financial Statements and Exhibits | ↗ |
| Aug 28, 2026 | 4/A | FORM 4/A | ↗ |
| Aug 28, 2026 | 3/A | FORM 3/A | ↗ |
| Aug 27, 2026 | 10-Q | 10-Q | ↗ |
| Aug 27, 2026 | 8-K | Other Events; Financial Statements and Exhibits | ↗ |
| Aug 27, 2026 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Aug 20, 2026 | 8-K | Other Events; Financial Statements and Exhibits | ↗ |
| Aug 14, 2026 | 4 | FORM 4 | ↗ |
| Aug 14, 2026 | 3 | FORM 3 | ↗ |
| Aug 14, 2026 | 8-K | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Jul 30, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Jul 30, 2026 | 3 | PRIMARY DOCUMENT | ↗ |
| Jul 23, 2026 | SCHEDULE 13G | ↗ | |
| Jul 23, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Jul 23, 2026 | 3 | PRIMARY DOCUMENT | ↗ |
| Jul 22, 2026 | 4 | ↗ | |
| Jul 22, 2026 | 3 | ↗ | |
| Jul 22, 2026 | 4 | FORM 4 | ↗ |
| Jul 22, 2026 | 4/A | PRIMARY DOCUMENT | ↗ |
| Jul 22, 2026 | 8-K | Other Events; Financial Statements and Exhibits | ↗ |
| Jul 21, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Jul 21, 2026 | 8-K | Amendments to Bylaws/Charter; Financial Statements and Exhibits | ↗ |
| Jul 17, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 4 | 4 | ↗ |
| Jul 16, 2026 | 424B4 | PROSPECTUS | ↗ |
| Jul 16, 2026 | 3 | PRIMARY DOCUMENT | ↗ |
| Jul 16, 2026 | S-8 | REGISTRATION STATEMENT | ↗ |
| Jul 15, 2026 | EFFECT | Item ; Item ; Item | ↗ |
| Jul 15, 2026 | 3 | 3 | ↗ |
| Jul 15, 2026 | 3 | FORM 3 | ↗ |
| Jul 15, 2026 | 3 | FORM 3 | ↗ |
| Jul 15, 2026 | 3 | FORM 3 | ↗ |
| Jul 15, 2026 | 3 | FORM 3 | ↗ |