NATIONAL STEEL CO (SID) Form 10-K Annual Reports
NATIONAL STEEL CO (SID) is a publicly traded company on the NYSE, categorized under SIC 3310 (Steel Works, Blast Furnaces & Rolling & Finishing Mills). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: SID
CIK: 1049659
Exchange: NYSE
SIC 3310: Steel Works, Blast Furnaces & Rolling & Finishing Mills
Fiscal Year End: 12/31
State: D5
Independent PCAOB Auditor
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Audit Firm
Forvis Mazars Auditores Independentes Sociedade Simples Ltda.
Auditor SinceSince 12/31/2025 12:00:00 AM
Lead Engagement PartnerDanhiel Reis
Audit LocationSão Paulo, Brazil
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| 6-K | 2026-10-09 | 2026-12-31 | 6-K | 0001292814-26-004888 | View SEC Doc Filr Page |
| 6-K | 2026-09-29 | 2026-09-30 | 6-K | 0001292814-26-004734 | View SEC Doc Filr Page |
| 3 | 2026-09-18 | 2026-09-03 | PRIMARY DOCUMENT | 0002155283-26-000001 | View SEC Doc Filr Page |
| 6-K | 2026-09-15 | 2026-09-30 | 6-K | 0001292814-26-004556 | View SEC Doc Filr Page |
| 6-K | 2026-09-14 | 2026-09-30 | 6-K | 0001292814-26-004538 | View SEC Doc Filr Page |
| 6-K | 2026-09-03 | 2026-09-30 | 6-K | 0001292814-26-004460 | View SEC Doc Filr Page |
| 6-K | 2026-08-27 | 2026-06-30 | 6-K | 0001292814-26-004375 | View SEC Doc Filr Page |
| 6-K | 2026-08-13 | 2026-06-30 | 6-K | 0001292814-26-004216 | View SEC Doc Filr Page |
| 6-K | 2026-08-11 | 2026-09-30 | 6-K | 0001292814-26-004188 | View SEC Doc Filr Page |
| 6-K | 2026-08-11 | 2026-09-30 | 6-K | 0001292814-26-004186 | View SEC Doc Filr Page |
| 6-K | 2026-08-10 | 2026-09-30 | 6-K | 0001292814-26-004156 | View SEC Doc Filr Page |
| 6-K | 2026-07-31 | 2026-09-30 | 6-K | 0001292814-26-003996 | View SEC Doc Filr Page |
| 6-K | 2026-07-31 | 2026-03-31 | 6-K | 0001292814-26-003994 | View SEC Doc Filr Page |
| 6-K | 2026-05-29 | 2026-03-31 | 6-K | 0001292814-26-003249 | View SEC Doc Filr Page |
| SD | 2026-05-29 | — | SD | 0001292814-26-003245 | View SEC Doc Filr Page |
| 6-K | 2026-05-14 | 2026-03-31 | 6-K | 0001292814-26-003025 | View SEC Doc Filr Page |
| 6-K | 2026-04-30 | 2026-06-30 | 6-K | 0001292814-26-002720 | View SEC Doc Filr Page |
| 20-F | 2026-04-30 | 2025-12-31 | 20-F | 0001292814-26-002714 | View SEC Doc Filr Page |
| 3 | 2026-04-07 | 2025-04-30 | PRIMARY DOCUMENT | 0001220436-26-000004 | View SEC Doc Filr Page |
| 6-K | 2026-03-27 | 2025-12-31 | 6-K | 0001292814-26-001795 | View SEC Doc Filr Page |
| 3 | 2026-03-26 | 2025-12-09 | PRIMARY DOCUMENT | 0002125076-26-000001 | View SEC Doc Filr Page |
| 3 | 2026-03-23 | 2025-12-09 | PRIMARY DOCUMENT | 0002123602-26-000001 | View SEC Doc Filr Page |
| 3 | 2026-03-23 | 2025-04-30 | PRIMARY DOCUMENT | 0002123591-26-000001 | View SEC Doc Filr Page |
| 3 | 2026-03-23 | 2025-04-30 | PRIMARY DOCUMENT | 0002122961-26-000001 | View SEC Doc Filr Page |
| 3 | 2026-03-23 | 2025-04-30 | PRIMARY DOCUMENT | 0002123089-26-000001 | View SEC Doc Filr Page |