Official SEC submissions

Companhia Siderurgica Nacional SEC Filings

Companhia Siderurgica Nacional (SID) SEC filings, periodic reports and insider…

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Companhia Siderurgica Nacional's latest SEC filing is 6-K.

It was filed on August 27, 2026, and 40 recent filings are available.

Each row links directly to the SEC document and filing index.

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Recent SEC filings

6-K

Current report

Filed: 2026-08-27

Report date: 2026-06-30

6-K

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6-K

Current report

Filed: 2026-08-13

Report date: 2026-06-30

6-K

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6-K

Current report

Filed: 2026-08-11

Report date: 2026-09-30

6-K

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6-K

Current report

Filed: 2026-08-11

Report date: 2026-09-30

6-K

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6-K

Current report

Filed: 2026-08-10

Report date: 2026-09-30

6-K

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6-K

Current report

Filed: 2026-07-31

Report date: 2026-09-30

6-K

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6-K

Current report

Filed: 2026-07-31

Report date: 2026-03-31

6-K

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6-K

Current report

Filed: 2026-05-29

Report date: 2026-03-31

6-K

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6-K

Current report

Filed: 2026-05-14

Report date: 2026-03-31

6-K

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6-K

Current report

Filed: 2026-04-30

Report date: 2026-06-30

6-K

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20-F

Periodic report

Filed: 2026-04-30

Report date: 2025-12-31

20-F

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6-K

Current report

Filed: 2026-03-27

Report date: 2025-12-31

6-K

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6-K

Current report

Filed: 2026-03-23

Report date: 2026-03-31

6-K

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6-K

Current report

Filed: 2026-03-12

Report date: 2026-03-31

6-K

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6-K

Current report

Filed: 2026-03-12

Report date: 2025-12-31

6-K

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6-K

Current report

Filed: 2026-01-15

Report date: 2026-03-31

6-K

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6-K

Current report

Filed: 2026-01-15

Report date: 2026-03-31

6-K

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6-K

Current report

Filed: 2026-01-12

Report date: 2026-03-31

6-K

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6-K

Current report

Filed: 2025-12-19

Report date: 2025-12-31

6-K

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6-K

Current report

Filed: 2025-12-17

Report date: 2025-12-31

6-K

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6-K

Current report

Filed: 2025-11-20

Report date: 2025-09-30

6-K

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6-K

Current report

Filed: 2025-11-10

Report date: 2025-09-30

6-K

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6-K

Current report

Filed: 2025-08-15

Report date: 2025-06-30

6-K

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6-K

Current report

Filed: 2025-08-06

Report date: 2025-09-30

6-K

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6-K

Current report

Filed: 2025-08-01

Report date: 2025-06-30

6-K

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6-K

Current report

Filed: 2025-07-31

Report date: 2025-09-30

6-K

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6-K

Current report

Filed: 2025-07-14

Report date: 2025-09-30

6-K

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6-K

Current report

Filed: 2025-05-22

Report date: 2025-03-31

6-K

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6-K

Current report

Filed: 2025-05-09

Report date: 2025-03-31

6-K

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6-K

Current report

Filed: 2025-05-09

Report date: 2025-06-30

6-K

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6-K

Current report

Filed: 2025-05-01

Report date: 2025-06-30

6-K

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20-F

Periodic report

Filed: 2025-04-30

Report date: 2024-12-31

20-F

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6-K

Current report

Filed: 2025-04-02

Report date: 2025-06-30

6-K

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6-K

Current report

Filed: 2025-03-28

Report date: 2024-12-31

6-K

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6-K

Current report

Filed: 2025-03-13

Report date: 2024-12-31

6-K

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6-K

Current report

Filed: 2025-01-21

Report date: 2025-03-31

6-K

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6-K

Current report

Filed: 2024-12-31

Report date: 2024-12-31

6-K

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6-K

Current report

Filed: 2024-12-11

Report date: 2024-12-31

6-K

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6-K

Current report

Filed: 2024-12-11

Report date: 2024-12-31

Open SEC document View filing index

6-K

Current report

Filed: 2024-12-04

Report date: 2024-12-31

6-K

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Verified data

Recent filing categories: 2
Recent filings: 40
SEC CIK: 0001049659
Latest filing date: August 27, 2026

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