Companhia Siderurgica Nacional S.A SID

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Companhia Siderurgica Nacional S.A. Common Stock · Company · NYSE

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 1.57 → 1.09 · -30.6%
2.1201.5100.900 1 2 3 4 5 6 7 8 9 10,11 12,13 14 15 16,17 18 19 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 22 Jul 2025 — 23 Jul 2026 (Last year)

Daily NYSE prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
1.0300 1.0900 1.0300 1.0900 2,212,700
1.0100 1.0300 1.0000 1.0000 1,602,300
1.0000 1.0200 1.0000 1.0100 417,800
Weekend
Weekend
0.9900 1.0100 0.9800 0.9900 3,388,500
1.0100 1.0300 1.0000 1.0000 1,850,500
1.0300 1.0400 1.0000 1.0300 1,594,300
1.0500 1.0500 1.0100 1.0300 3,007,100
1.0300 1.0600 1.0100 1.0300 3,926,000
Weekend
Weekend
0.9800 1.0300 0.9800 1.0100 1,628,000
0.9300 0.9600 0.9100 0.9500 1,259,500
0.9200 0.9300 0.9000 0.9200 1,289,900
0.9300 0.9300 0.9100 0.9300 1,548,500
0.9300 0.9600 0.9300 0.9600 1,518,100
Weekend
Weekend
No trading
0.9300 0.9500 0.9000 0.9100 2,734,800
0.8900 0.9300 0.8900 0.9000 2,867,200
0.9000 0.9300 0.8900 0.9200 3,692,200
0.9300 0.9300 0.9100 0.9100 2,902,400
Weekend
Weekend
0.9600 0.9600 0.9400 0.9400 3,290,100
1.0000 1.0100 0.9500 0.9600 6,089,000
1.0200 1.0300 0.9700 0.9800 14,883,400
1.0300 1.0600 1.0200 1.0400 7,841,400
1.0600 1.0700 1.0300 1.0500 6,546,400
Weekend
Weekend
No trading
1.1000 1.1200 1.0200 1.0300 8,566,300
1.1800 1.2000 1.1200 1.1200 7,263,700
1.2200 1.2500 1.2100 1.2100 2,901,700
1.2800 1.3200 1.2100 1.2200 3,029,500
Weekend
Weekend
1.2200 1.2400 1.2000 1.2200 2,412,700
1.1900 1.2100 1.1500 1.2100 6,560,900
1.1500 1.2200 1.1500 1.1800 4,343,200
1.1800 1.2100 1.1300 1.1700 7,536,900
1.1800 1.1900 1.1500 1.1500 4,259,800
Weekend
Weekend
1.2600 1.2600 1.1800 1.1800 6,709,400
1.3000 1.3200 1.2900 1.3000 1,805,400
1.3700 1.3700 1.3000 1.3100 4,140,300
1.3100 1.4700 1.3100 1.4200 7,844,600
1.3100 1.3300 1.2400 1.3100 6,287,600
Weekend
Weekend
19 · 6-K After-hours · 16:07 ET 6-K ↗
1.3500 1.3800 1.3300 1.3500 1,674,900
1.3000 1.3800 1.2900 1.3600 3,637,100
1.3300 1.3400 1.2900 1.3200 3,784,100
1.3500 1.3700 1.3300 1.3400 1,768,300
No trading
Weekend
Weekend
1.2900 1.3500 1.2800 1.3500 3,221,100
1.2300 1.2900 1.2200 1.2800 1,990,700
1.2100 1.2500 1.2000 1.2500 3,137,700
1.2200 1.2300 1.1800 1.1800 3,257,800
1.2800 1.3000 1.2300 1.2500 3,386,000
Weekend
Weekend
1.2700 1.2800 1.2500 1.2600 3,371,200
1.3100 1.3700 1.2700 1.3500 3,503,100
18 · 6-K Pre-market · 06:02 ET 6-K ↗
1.3400 1.3700 1.2800 1.2800 3,800,400
1.3400 1.3700 1.3300 1.3700 3,101,500
1.3900 1.4000 1.3500 1.3700 3,207,900
Weekend
Weekend
1.3900 1.4100 1.3700 1.3800 2,514,900
1.3900 1.3900 1.3400 1.3400 2,964,700
1.3400 1.4000 1.3400 1.4000 4,459,900
1.2800 1.3100 1.2700 1.3000 1,745,800
1.2800 1.2900 1.2400 1.2600 2,440,300
Weekend
Weekend
1.2900 1.3100 1.2900 1.2900 748,300
17 · 6-K After-hours · 16:58 ET 6-K ↗ 16 · 20-F After-hours · 16:25 ET 20-F ↗
1.2900 1.3100 1.2700 1.2900 2,814,900
1.2800 1.2900 1.2500 1.2700 3,177,400
1.2800 1.3000 1.2800 1.3000 2,206,200
1.3100 1.3200 1.2900 1.2900 2,436,200
Weekend
Weekend
1.2900 1.3000 1.2800 1.2900 965,200
1.3400 1.3600 1.2900 1.2900 4,983,200
1.3400 1.3800 1.3400 1.3400 4,823,300
1.3700 1.3800 1.2900 1.3000 4,461,100
1.3700 1.3900 1.3500 1.3800 3,413,600
Weekend
Weekend
1.4000 1.4200 1.3600 1.3600 4,484,300
1.3900 1.4100 1.3400 1.3400 5,185,000
1.3500 1.3700 1.3200 1.3700 4,173,900
1.3700 1.3700 1.3200 1.3500 3,453,500
1.3000 1.3200 1.2600 1.3200 2,749,100
Weekend
Weekend
1.3700 1.3900 1.2900 1.2900 3,176,400
1.3400 1.3700 1.3200 1.3500 4,339,700
1.3400 1.3500 1.3100 1.3300 6,841,500
1.2500 1.2600 1.2200 1.2400 2,824,700
1.2600 1.2800 1.2500 1.2600 2,422,400
Weekend
Weekend
No trading
1.2500 1.2800 1.2400 1.2600 3,349,300
1.2900 1.2900 1.2600 1.2700 4,002,100
1.2100 1.2500 1.2000 1.2400 7,773,200
1.2300 1.2400 1.1700 1.1800 7,136,600
Weekend
Weekend
1.2200 1.2300 1.1900 1.2100 6,445,400
15 · 6-K Next filing day · accepted 26 Mar, 18:36 ET 6-K ↗
1.2700 1.3000 1.2300 1.2300 5,435,800
1.2800 1.3000 1.2600 1.2900 10,245,800
1.2100 1.2600 1.2100 1.2400 7,732,500
1.2100 1.2700 1.2000 1.2500 9,157,300
14 · 6-K Pre-market · 06:02 ET 6-K ↗
Weekend
Weekend
1.1600 1.1800 1.1300 1.1400 9,545,300
1.1200 1.2100 1.1100 1.1900 9,698,700
1.1800 1.2200 1.1600 1.1700 6,351,800
1.2000 1.2700 1.1800 1.2000 8,848,800
1.1500 1.1900 1.1300 1.1700 6,970,100
Weekend
Weekend
1.2100 1.2100 1.1100 1.1100 13,005,000
1.3000 1.3500 1.1900 1.2000 15,950,600
13 · 6-K Pre-market · 06:06 ET 6-K ↗ 12 · 6-K Pre-market · 06:03 ET 6-K ↗
1.4100 1.4500 1.3800 1.3800 5,620,600
1.4200 1.4600 1.3900 1.4100 4,028,500
1.3700 1.4400 1.3400 1.4200 7,071,500
Weekend
Weekend
1.4300 1.4500 1.3900 1.3900 6,061,000
1.5100 1.5300 1.4500 1.4700 5,214,100
1.5400 1.5700 1.5200 1.5500 4,719,900
1.5600 1.5600 1.4800 1.5000 8,295,500
1.6300 1.6800 1.6100 1.6400 6,287,800
Weekend
Weekend
1.7000 1.7000 1.6700 1.6800 4,675,700
1.6900 1.7100 1.6500 1.7000 2,813,300
1.7100 1.7100 1.6700 1.7000 4,016,700
1.6700 1.7200 1.6600 1.6700 2,725,200
1.6800 1.6900 1.6300 1.6700 3,742,300
Weekend
Weekend
1.6300 1.7200 1.6300 1.7000 4,118,800
1.6400 1.6600 1.6300 1.6600 5,613,400
1.6900 1.7400 1.6400 1.6600 5,812,000
1.6800 1.7000 1.6400 1.6800 3,632,600
No trading
Weekend
Weekend
1.6800 1.7000 1.6300 1.6900 6,814,200
1.8500 1.8600 1.7000 1.7000 6,102,600
1.8500 1.8900 1.8200 1.8800 5,913,900
1.8900 1.9100 1.8200 1.8300 5,225,200
1.8500 1.9300 1.8400 1.9000 3,898,800
Weekend
Weekend
1.8700 1.8800 1.8100 1.8300 5,047,300
1.9400 1.9500 1.8800 1.8900 6,902,500
2.0000 2.0100 1.9300 1.9600 4,083,100
2.0200 2.0200 1.9300 2.0100 4,561,800
1.9000 1.9500 1.9000 1.9000 3,337,400
Weekend
Weekend
1.9800 2.0100 1.9000 1.9100 7,605,000
2.1600 2.1600 2.0200 2.0600 5,570,700
2.1500 2.2000 2.1000 2.1200 6,878,100
1.9800 2.0700 1.9800 2.0600 7,577,200
1.9700 1.9900 1.8800 1.9000 5,156,100
Weekend
Weekend
1.8400 1.9600 1.8300 1.9500 6,007,600
1.8100 1.9000 1.8100 1.8200 7,631,500
1.7200 1.7900 1.7100 1.7800 5,082,300
1.7100 1.7200 1.6800 1.7000 3,192,800
No trading
Weekend
Weekend
1.8000 1.8300 1.7100 1.7900 5,428,000
1.8900 1.9400 1.8500 1.9000 7,731,600
11 · 6-K Pre-market · 08:24 ET 6-K ↗ 10 · 6-K Pre-market · 08:19 ET 6-K ↗
1.8500 1.9600 1.8400 1.9500 3,901,000
1.8400 1.8900 1.8200 1.8700 2,025,200
1.8700 1.8800 1.8300 1.8700 2,589,300
9 · 6-K Next filing day · accepted 09 Jan, 17:57 ET 6-K ↗
Weekend
Weekend
1.8500 1.9100 1.8500 1.8600 2,185,700
1.7900 1.8700 1.7800 1.8700 4,171,600
1.7600 1.8800 1.7400 1.8800 7,926,700
1.6800 1.7700 1.6800 1.7500 3,366,400
1.6200 1.7000 1.6200 1.6700 2,152,600
Weekend
Weekend
1.6100 1.6400 1.6000 1.6100 2,220,200
No trading
1.6300 1.6300 1.6000 1.6000 533,900
1.6200 1.6300 1.6100 1.6300 2,130,500
1.6000 1.6300 1.5800 1.5800 2,214,400
Weekend
Weekend
1.6400 1.6500 1.6200 1.6200 1,493,000
No trading
1.6400 1.6600 1.6100 1.6200 984,000
1.6500 1.6600 1.6400 1.6400 2,672,200
1.6700 1.7000 1.6300 1.6400 4,080,100
Weekend
Weekend
1.7300 1.7600 1.6200 1.6300 6,803,200
8 · 6-K Next filing day · accepted 18 Dec, 19:20 ET 6-K ↗
1.7400 1.7800 1.7400 1.7700 3,603,000
7 · 6-K After-hours · 16:31 ET 6-K ↗
1.7200 1.7500 1.7100 1.7300 2,370,100
1.7300 1.7700 1.7300 1.7400 3,107,000
1.7800 1.8000 1.7300 1.7400 3,669,500
Weekend
Weekend
1.8100 1.8300 1.7700 1.8100 1,625,300
1.7800 1.8400 1.7700 1.8100 1,799,000
1.7400 1.8100 1.7400 1.7600 4,235,500
1.6000 1.6800 1.6000 1.6700 2,180,600
1.6600 1.6700 1.6000 1.6100 2,221,300
Weekend
Weekend
1.7400 1.7800 1.6300 1.6400 4,809,500
1.7300 1.7800 1.7200 1.7800 3,876,600
1.6500 1.7200 1.6500 1.7100 2,660,000
1.5800 1.6200 1.5800 1.6200 1,516,700
1.5800 1.6100 1.5700 1.5900 1,848,100
Weekend
Weekend
1.6300 1.6300 1.5700 1.5800 1,218,400
No trading
1.5600 1.6200 1.5600 1.6100 1,855,800
1.5200 1.5500 1.4900 1.5500 1,321,300
1.5100 1.5200 1.4800 1.4900 2,035,800
Weekend
Weekend
1.4800 1.5100 1.4600 1.5000 1,078,800
1.5300 1.5500 1.4800 1.4800 1,704,300
6 · 6-K Next filing day · accepted 19 Nov, 18:17 ET 6-K ↗
1.5200 1.5500 1.5100 1.5200 1,587,800
1.5400 1.5600 1.5200 1.5300 2,348,000
1.6000 1.6100 1.5500 1.5500 1,529,200
Weekend
Weekend
1.6100 1.6500 1.6000 1.6100 1,799,100
1.6600 1.6700 1.6100 1.6300 3,295,500
1.5900 1.6600 1.5800 1.6500 3,819,200
1.5900 1.6100 1.5700 1.5800 2,907,200
5 · 6-K After-hours · 17:07 ET 6-K ↗
1.5800 1.5800 1.5400 1.5500 2,960,800
Weekend
Weekend
1.5500 1.5700 1.5200 1.5700 3,237,700
1.5700 1.6100 1.5600 1.5800 3,483,200
1.6100 1.6700 1.5900 1.6000 3,371,700
1.6900 1.7100 1.6300 1.6400 3,687,200
1.7600 1.7700 1.7100 1.7200 2,662,800
Weekend
Weekend
1.7600 1.7700 1.7300 1.7600 2,203,500
1.7200 1.7600 1.7200 1.7500 1,882,900
1.7500 1.7600 1.7200 1.7500 2,933,000
1.6700 1.7600 1.6700 1.7400 5,847,900
1.6600 1.6900 1.6400 1.6700 2,002,900
Weekend
Weekend
1.6900 1.7000 1.6200 1.6300 2,074,600
1.6400 1.6500 1.6300 1.6400 1,386,000
1.6400 1.6600 1.5900 1.6200 2,734,600
1.6100 1.6500 1.6000 1.6300 3,203,300
1.5800 1.6700 1.5800 1.6500 4,947,200
Weekend
Weekend
1.5000 1.5700 1.4900 1.5600 3,104,700
1.5500 1.5700 1.5100 1.5200 3,884,100
1.5300 1.5700 1.5200 1.5500 2,425,200
1.5100 1.5600 1.5100 1.5400 1,684,700
1.5100 1.5500 1.4900 1.5400 3,445,300
Weekend
Weekend
1.5700 1.5700 1.4500 1.4500 2,795,700
1.6100 1.6500 1.5700 1.5800 2,272,500
1.6200 1.6200 1.5700 1.6000 1,955,200
1.6300 1.6500 1.5900 1.6000 3,092,100
1.5800 1.6700 1.5600 1.6600 6,826,500
Weekend
Weekend
1.5300 1.5700 1.5300 1.5700 1,571,300
1.5400 1.5600 1.4900 1.5400 1,996,600
1.5200 1.5600 1.5200 1.5400 2,214,300
1.5100 1.5300 1.4900 1.5000 1,301,100
1.5300 1.5800 1.5100 1.5200 3,018,600
Weekend
Weekend
1.5100 1.5100 1.4800 1.5100 1,472,800
1.5200 1.5500 1.4900 1.5100 2,121,500
1.5200 1.5300 1.4900 1.5300 1,596,700
1.5200 1.5500 1.5100 1.5100 1,896,600
1.4800 1.5100 1.4600 1.5100 1,384,600
Weekend
Weekend
1.5000 1.5200 1.4700 1.5000 2,194,300
1.5800 1.5800 1.4900 1.5000 2,288,200
1.5300 1.5900 1.5300 1.5400 3,686,400
1.5000 1.5300 1.4800 1.5200 2,478,000
1.4800 1.5000 1.4700 1.5000 996,400
Weekend
Weekend
1.4500 1.4800 1.4400 1.4800 785,600
1.4500 1.4800 1.4400 1.4600 962,800
1.4800 1.4800 1.4400 1.4600 1,076,400
1.4900 1.5200 1.4500 1.4600 1,323,300
1.4800 1.4900 1.4300 1.4600 1,240,900
Weekend
Weekend
1.4500 1.4900 1.4300 1.4600 1,919,200
1.4100 1.4400 1.3900 1.4300 1,085,200
1.3900 1.3900 1.3600 1.3900 1,018,400
1.3800 1.4000 1.3600 1.4000 1,812,500
No trading
Weekend
Weekend
1.4500 1.4700 1.4100 1.4100 2,470,900
1.4400 1.4700 1.4300 1.4500 2,926,800
1.3500 1.3900 1.3300 1.3900 1,591,500
1.3600 1.3700 1.3300 1.3600 1,896,600
1.3400 1.3900 1.3400 1.3500 2,219,100
Weekend
Weekend
1.2700 1.3500 1.2700 1.3300 3,924,400
1.2600 1.2900 1.2400 1.2700 3,882,800
1.2800 1.2800 1.2400 1.2500 3,145,100
1.3000 1.3000 1.2600 1.2700 3,092,800
1.3100 1.3400 1.3000 1.3100 2,914,400
Weekend
Weekend
1.3200 1.3300 1.2600 1.2800 5,020,800
4 · 6-K Next filing day · accepted 14 Aug, 19:51 ET 6-K ↗
1.3200 1.3400 1.3000 1.3200 6,189,200
1.4100 1.4400 1.3900 1.3900 1,345,600
1.3800 1.4400 1.3700 1.4300 5,480,700
1.3800 1.3800 1.3600 1.3700 2,229,300
Weekend
Weekend
1.3700 1.4100 1.3600 1.3800 1,968,400
1.3500 1.3700 1.3300 1.3700 2,002,700
1.3600 1.3800 1.3100 1.3100 2,798,300
3 · 6-K Pre-market · 08:58 ET 6-K ↗
1.3900 1.3900 1.3300 1.3400 4,138,000
1.4100 1.4200 1.3700 1.3700 2,252,900
Weekend
Weekend
1.4400 1.4500 1.3800 1.3900 2,260,000
2 · 6-K Pre-market · 06:03 ET 6-K ↗
1.3800 1.4500 1.3700 1.4500 4,917,300
1 · 6-K Pre-market · 08:35 ET 6-K ↗
1.4500 1.4600 1.4100 1.4300 2,768,000
1.4600 1.4700 1.4400 1.4600 4,334,300
1.5100 1.5100 1.4400 1.4400 3,045,600
Weekend
Weekend
1.5500 1.5600 1.5100 1.5300 2,144,200
1.5900 1.6000 1.5600 1.5700 2,826,700
1.5500 1.6200 1.5500 1.6100 4,372,900
1.5100 1.5700 1.4900 1.5700 5,424,400

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

19 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
18 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:02 ET Summarise
17 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:58 ET Summarise
16 20-F 20-F (opens SEC filing in a new tab) After-hours · 16:25 ET Summarise
15 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 26 Mar, 18:36 ET Summarise
14 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:02 ET Summarise
13 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:06 ET Summarise
12 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:03 ET Summarise
11 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:24 ET Summarise
10 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:19 ET Summarise
9 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 09 Jan, 17:57 ET Summarise
8 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 18 Dec, 19:20 ET Summarise
7 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
6 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 19 Nov, 18:17 ET Summarise
5 6-K 6-K (opens SEC filing in a new tab) After-hours · 17:07 ET Summarise
4 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 14 Aug, 19:51 ET Summarise
3 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:58 ET Summarise
2 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:03 ET Summarise
1 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:35 ET Summarise