Algoma Steel Group Inc. - Common Shares ASTL

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Algoma Steel Group Inc. - Common Shares · Company · Nasdaq · Basic Materials / Steel

Paper trade (simulated — no real money)

Fill: USD 4.7400 · FX 1 USD = 1.277900 SGD · about SGD 6.0572 per unit

Sign in to practise with simulated trades before investing real money. USD fills are converted into the SGD portfolio at the displayed rate.

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

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

USD 4.50 → 4.74 · 5.3%
5.8004.5403.280 1 2 3 4 5 6 7 8,9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Oct 25Jan 26Apr 26Jul 26Oct 26

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

Price & SEC Filing History 24 Oct 2025 — 25 Oct 2026 (Last year)

Daily Nasdaq 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.

Weekend
Weekend
4.5800 4.8150 4.4150 4.7400 995,236
4.3900 4.6850 4.3400 4.5900 1,181,200
4.1100 4.4900 4.0800 4.4900 1,430,200
4.1200 4.1700 4.0200 4.1100 842,500
4.0400 4.2000 3.9500 4.1300 1,308,900
Weekend
Weekend
4.1000 4.1800 4.0200 4.0300 1,018,600
24 · 6-K Next filing day · accepted 15 Oct, 22:50 ET 6-K ↗
4.3000 4.3000 4.0200 4.1000 1,214,300
4.2500 4.3100 4.2050 4.2800 563,100
4.2500 4.3100 4.2000 4.2900 507,400
4.3000 4.3000 4.2000 4.2500 125,200
Weekend
Weekend
4.2200 4.3550 4.1400 4.3000 407,800
4.2300 4.2300 4.1150 4.1800 329,300
4.2600 4.3200 4.1850 4.2300 361,500
4.4800 4.5200 4.3300 4.3500 333,600
4.3500 4.5850 4.2900 4.4500 833,500
Weekend
Weekend
4.0400 4.3600 3.9300 4.3400 1,361,600
23 · 6-K Next filing day · accepted 01 Oct, 19:36 ET 6-K ↗
4.1500 4.1650 4.0500 4.1100 439,900
4.2100 4.2850 4.1600 4.1700 1,007,900
4.3700 4.4700 4.1250 4.2000 1,552,400
4.2100 4.4350 4.1700 4.3500 647,400
Weekend
Weekend
4.1900 4.3000 4.1600 4.2600 508,700
4.3100 4.3550 4.1850 4.1900 858,900
4.3900 4.4350 4.2900 4.3600 526,300
4.2800 4.4400 4.2500 4.4300 584,200
4.2800 4.3300 4.2050 4.2700 509,700
Weekend
Weekend
4.4100 4.4500 4.1900 4.2500 841,100
4.3000 4.4550 4.2800 4.4200 676,000
4.2100 4.3250 4.1500 4.2400 859,800
4.2000 4.2700 4.1700 4.2000 972,700
4.2300 4.2800 4.1300 4.2400 744,500
Weekend
Weekend
4.3300 4.3740 4.1700 4.2600 673,700
4.3000 4.3000 4.1400 4.3000 764,300
4.3900 4.4500 4.3500 4.3500 649,600
4.6600 4.7250 4.4000 4.4050 617,300
No trading
Weekend
Weekend
4.4200 4.7600 4.4200 4.7100 1,339,900
4.4500 4.5200 4.3000 4.4500 1,118,100
4.1400 4.4250 4.1050 4.3850 697,600
22 · 6-K Pre-market · 08:47 ET 6-K ↗
4.1900 4.1900 4.0500 4.1300 752,100
4.1400 4.2450 4.1250 4.2050 691,600
Weekend
Weekend
4.4000 4.4000 4.1550 4.1800 1,039,300
4.1600 4.3200 4.1550 4.2900 829,800
3.9550 4.1950 3.9100 4.1600 959,700
4.0100 4.0850 3.9200 3.9900 839,600
4.4500 4.4500 4.0000 4.0100 1,825,300
Weekend
Weekend
4.6500 4.8750 4.6000 4.6500 2,108,000
4.8600 4.8600 4.3700 4.5600 2,631,400
4.1800 5.0700 4.1800 4.7900 5,405,000
4.1000 4.3900 3.9650 4.0900 2,429,500
21 · 6-K Next filing day · accepted 17 Aug, 21:12 ET 6-K ↗
4.2400 4.2700 4.0300 4.1600 891,400
Weekend
Weekend
4.4700 4.4800 4.2400 4.2800 532,700
4.4500 4.5350 4.4150 4.4600 379,600
4.4400 4.5300 4.3550 4.4500 776,700
4.4300 4.5700 4.3800 4.4200 1,001,100
4.0500 4.6100 4.0350 4.4300 1,793,300
Weekend
Weekend
4.0300 4.1450 3.9500 4.0750 794,600
4.4500 4.4500 3.9600 3.9700 891,400
4.2400 4.4600 4.2240 4.4600 1,625,300
3.9500 4.3200 3.9250 4.2200 1,560,300
3.8700 4.0050 3.8400 3.9200 1,038,000
Weekend
Weekend
3.8100 3.9400 3.6800 3.8500 1,862,300
4.0500 4.3900 3.6350 3.8350 1,761,600
20 · 6-K Next filing day · accepted 29 Jul, 20:10 ET FORM 6-K ↗
4.4000 4.4500 4.1800 4.2700 1,039,200
4.3400 4.4650 4.3000 4.3900 762,900
4.3600 4.4000 4.2250 4.3900 869,800
Weekend
Weekend
4.3600 4.5050 4.2700 4.3200 1,315,600
4.0800 4.3600 4.0600 4.3500 2,220,300
3.8500 4.1000 3.8200 4.0700 887,500
3.7400 3.8800 3.7100 3.8500 580,500
3.8300 3.8540 3.6700 3.7100 672,800
Weekend
Weekend
3.6600 3.8550 3.5950 3.8300 721,500
19 · 6-K Next filing day · accepted 16 Jul, 19:05 ET 6-K ↗
3.7700 3.7700 3.6200 3.7000 568,500
3.6700 3.8150 3.6200 3.8000 646,200
3.7100 3.7600 3.6400 3.6600 359,000
3.7300 3.7300 3.5800 3.6100 724,400
Weekend
Weekend
3.5800 3.6590 3.5050 3.6200 754,000
3.8200 3.8200 3.5450 3.5900 1,442,400
3.7500 3.7900 3.6950 3.7500 832,100
3.7300 3.7900 3.6850 3.7600 622,200
3.7700 3.8800 3.7400 3.7700 777,500
Weekend
Weekend
No trading
3.8700 4.0700 3.6950 3.7700 1,282,200
4.0300 4.0900 3.8200 3.8300 627,800
18 · 6-K Next filing day · accepted 30 Jun, 19:10 ET 6-K ↗
4.0400 4.1500 3.9600 4.0500 1,055,700
4.2100 4.2100 4.0000 4.0100 780,600
Weekend
Weekend
4.1700 4.2250 4.1050 4.1800 1,194,000
4.0000 4.2400 3.9950 4.1800 773,300
4.1300 4.1400 3.9050 3.9900 1,044,000
17 · 6-K Next filing day · accepted 23 Jun, 18:09 ET 6-K ↗
4.2700 4.2700 4.1250 4.1600 758,500
4.5550 4.5550 4.2300 4.2900 1,050,900
Weekend
Weekend
No trading
4.8000 4.8200 4.5100 4.5200 757,900
4.8900 5.0000 4.7400 4.7550 588,400
4.9100 4.9600 4.7850 4.9100 601,400
5.2250 5.2710 4.9200 4.9300 640,500
Weekend
Weekend
4.7500 5.0100 4.7100 5.0100 675,700
4.6100 4.7100 4.5350 4.7100 706,000
4.6500 4.7200 4.5600 4.5600 627,800
4.9900 5.0700 4.5700 4.6800 756,000
5.1400 5.1400 4.9250 4.9400 759,300
Weekend
Weekend
5.4000 5.4100 4.9400 4.9600 990,300
16 · 6-K Next filing day · accepted 04 Jun, 18:42 ET 6-K ↗
5.5300 5.7350 5.4400 5.4800 780,400
5.6000 5.7050 5.5050 5.5300 1,068,600
5.8000 5.8700 5.5100 5.6100 1,353,600
5.6200 5.9000 5.5600 5.8000 1,419,800
Weekend
Weekend
5.5500 5.7700 5.4250 5.6200 2,165,400
5.2600 5.7200 5.2200 5.5600 2,273,200
4.9600 5.3400 4.9210 5.3300 2,767,200
4.7400 5.0500 4.7400 4.9800 1,084,200
No trading
Weekend
Weekend
4.7400 4.8200 4.6600 4.7300 766,500
15 · 6-K Pre-market · 09:01 ET 6-K ↗
4.8800 4.8800 4.5690 4.7300 1,059,100
5.2400 5.2900 4.9300 4.9300 1,149,100
5.1800 5.2850 5.0420 5.1800 1,672,300
5.2000 5.3800 5.0100 5.2200 946,300
Weekend
Weekend
5.0000 5.3500 5.0000 5.2100 2,534,400
5.0100 5.2100 4.8950 5.1500 2,113,500
4.6700 5.4400 4.6500 5.0000 3,105,300
14 · 6-K Next filing day · accepted 12 May, 21:48 ET 6-K ↗
5.1100 5.1400 4.8650 4.9900 1,291,200
5.1500 5.1900 5.0400 5.1400 883,700
Weekend
Weekend
5.2600 5.2900 5.0900 5.1400 782,300
5.1000 5.2850 4.9900 5.2100 2,150,300
4.9800 5.2000 4.9490 5.0900 2,067,000
4.7600 4.9400 4.7100 4.8600 708,600
4.8300 4.8950 4.6550 4.7200 798,200
Weekend
Weekend
4.7000 4.8750 4.6800 4.8200 661,100
13 · 6-K Next filing day · accepted 30 Apr, 17:42 ET 6-K ↗
4.4500 4.6900 4.4500 4.6700 616,800
4.6000 4.6200 4.4350 4.4600 535,100
4.6100 4.6500 4.5350 4.6200 500,900
4.5500 4.7700 4.5250 4.7000 837,200
Weekend
Weekend
4.4300 4.5900 4.4000 4.5200 784,600
4.7600 4.7900 4.4050 4.4400 1,064,100
4.6400 4.7600 4.6000 4.7300 685,100
4.7200 4.8300 4.5700 4.5900 946,800
4.6580 4.7400 4.6050 4.6900 1,075,300
Weekend
Weekend
4.8900 4.9450 4.6950 4.7400 890,300
4.9200 4.9950 4.7250 4.7700 1,017,600
5.0700 5.0800 4.9100 4.9100 748,600
5.0600 5.1000 4.9700 5.0700 1,222,200
4.6700 5.0500 4.6700 5.0100 1,792,500
Weekend
Weekend
12 · 6-K After-hours · 16:33 ET 6-K ↗
4.6900 4.7800 4.5700 4.7100 932,300
4.5700 4.7550 4.5400 4.6700 1,080,000
4.5400 4.7050 4.5000 4.5800 1,154,700
11 · 6-K After-hours · 16:50 ET 6-K ↗
4.2200 4.4300 4.1650 4.4100 1,638,400
4.1200 4.2500 4.1000 4.1900 696,400
Weekend
Weekend
No trading
3.9800 4.1900 3.9600 4.1400 1,006,000
4.2600 4.2900 4.1000 4.1100 829,000
10 · 6-K Next filing day · accepted 31 Mar, 18:30 ET 6-K ↗
4.0600 4.1800 4.0050 4.1300 1,014,000
4.0400 4.0900 3.9200 3.9600 830,700
Weekend
Weekend
4.1400 4.2600 3.9300 3.9600 791,400
4.0600 4.3050 4.0520 4.1600 770,300
4.0000 4.1800 4.0000 4.1600 1,363,400
3.7300 4.1000 3.7000 4.0300 2,010,700
3.6400 3.9350 3.6100 3.7700 1,394,800
Weekend
Weekend
3.6000 3.8100 3.5000 3.5700 7,909,200
3.4700 3.6500 3.3650 3.6400 1,482,300
3.6800 3.7270 3.6000 3.6200 1,243,300
3.6300 3.8000 3.6300 3.7400 1,966,200
3.4600 3.6300 3.4020 3.5800 2,004,800
Weekend
Weekend
3.6900 3.6900 3.3700 3.4600 2,761,900
4.1800 4.3600 3.6750 3.6900 4,216,000
9 · 6-K Next filing day · accepted 11 Mar, 20:34 ET 6-K ↗ 8 · 40-F Next filing day · accepted 11 Mar, 18:47 ET 40-F ↗
4.2600 4.4050 4.2500 4.3300 1,288,700
4.2700 4.4150 4.2200 4.3000 1,662,500
4.3200 4.4050 4.1650 4.3400 1,489,300
Weekend
Weekend
4.5500 4.5980 4.2750 4.4000 1,626,500
4.6500 4.7500 4.5600 4.6600 778,200
4.6600 4.7900 4.5600 4.7000 673,700
4.5300 4.6950 4.3250 4.6000 1,047,800
4.4800 4.7200 4.4000 4.7200 1,130,400
Weekend
Weekend
4.6600 4.6950 4.4800 4.5900 736,900
7 · 6-K Next filing day · accepted 26 Feb, 20:13 ET 6-K ↗
4.5200 4.7600 4.4500 4.7500 736,700
4.6600 4.6680 4.4980 4.5400 989,900
4.6700 4.8090 4.5950 4.6000 606,500
4.8900 4.9200 4.5500 4.6500 1,048,400
Weekend
Weekend
4.8400 5.1200 4.8050 4.9500 1,959,000
4.5200 4.9350 4.4900 4.8900 1,210,700
4.6800 4.7000 4.5150 4.6200 1,245,300
4.7900 4.7900 4.4250 4.6400 1,881,700
No trading
Weekend
Weekend
4.6700 4.9800 4.3900 4.8200 4,168,700
5.1000 5.1600 4.2700 4.3000 3,084,300
5.2200 5.3400 5.0250 5.0600 1,510,400
4.9400 5.3650 4.9000 5.1150 4,416,000
4.6000 4.9800 4.4800 4.9200 2,905,200
Weekend
Weekend
4.4300 4.6950 4.3900 4.6100 1,352,200
4.5000 4.5500 4.2900 4.3200 967,100
4.5300 4.6450 4.3650 4.6100 1,305,100
4.3500 4.5400 4.3100 4.5000 1,289,600
4.1500 4.2900 4.1000 4.2300 898,900
Weekend
Weekend
4.3700 4.4500 4.1700 4.1800 1,333,500
4.6100 4.6200 4.3300 4.4500 1,538,900
4.7500 4.8200 4.4550 4.5800 2,155,900
4.4000 4.6650 4.2850 4.5600 2,041,600
6 · 6-K Next filing day · accepted 26 Jan, 21:01 ET 6-K ↗
4.5400 4.6100 4.2250 4.2900 3,276,000
Weekend
Weekend
4.3800 4.7050 4.3300 4.5400 1,486,600
4.2100 4.5400 4.2100 4.3800 1,452,200
4.0800 4.1800 4.0450 4.1800 1,165,800
4.4000 4.4000 4.0400 4.0500 1,874,200
No trading
Weekend
Weekend
4.5800 4.5900 4.3500 4.4000 1,258,700
4.7100 4.7600 4.5200 4.5800 718,000
4.3400 4.7250 4.3360 4.6900 1,401,500
4.4300 4.5400 4.3400 4.3500 672,900
4.2700 4.3950 4.1800 4.3800 503,500
Weekend
Weekend
4.2400 4.3150 4.1450 4.2500 954,900
5 · 6-K Next filing day · accepted 08 Jan, 19:57 ET 6-K ↗
4.2400 4.3550 4.1650 4.2400 657,500
4.1500 4.3200 4.0600 4.2400 682,700
3.9700 4.1800 3.9500 4.1500 1,026,900
3.9300 4.0900 3.9300 3.9600 563,400
Weekend
Weekend
4.1200 4.1550 3.8400 3.9200 1,265,900
No trading
4.0600 4.1400 4.0050 4.1000 992,200
4.1100 4.1650 4.0550 4.0700 577,000
4.1100 4.2200 4.0700 4.1000 759,700
Weekend
Weekend
4.1600 4.1700 4.0650 4.1500 545,100
No trading
4.1700 4.1900 4.1000 4.1700 423,400
4.2500 4.3200 4.1800 4.1800 605,900
4.4800 4.5450 4.2300 4.2900 793,000
Weekend
Weekend
4.4400 4.5000 4.3150 4.3200 2,088,400
4.4100 4.5550 4.3900 4.4300 979,500
4.4700 4.6200 4.2800 4.3500 968,200
4.3900 4.5100 4.3500 4.4600 435,000
4.5450 4.6150 4.3300 4.4000 640,300
Weekend
Weekend
4.6100 4.7500 4.5000 4.5300 997,700
4.3000 4.6500 4.2300 4.6100 1,190,900
4.3000 4.3550 4.2100 4.3000 643,500
4.0800 4.3090 4.0300 4.3000 1,214,600
4.1700 4.2000 4.0700 4.0700 828,200
Weekend
Weekend
4.1500 4.2200 4.0100 4.1500 1,854,100
4.0500 4.2000 3.9500 4.1500 1,033,100
3.9500 4.0750 3.9100 4.0700 1,089,800
4 · 6-K After-hours · 16:07 ET 6-K ↗
3.8900 3.9950 3.7900 3.9200 1,309,700
4.2200 4.2200 3.8900 3.8900 1,403,700
3 · 6-K Pre-market · 08:30 ET 6-K ↗
Weekend
Weekend
4.1900 4.2800 4.0500 4.2700 2,196,600
No trading
3.6400 3.9800 3.5800 3.9000 1,817,400
3.4600 3.6750 3.4600 3.6400 1,135,800
3.3700 3.4800 3.2900 3.4400 1,428,700
Weekend
Weekend
3.2900 3.3800 3.1600 3.3700 4,876,500
3.4800 3.5500 3.1900 3.2800 1,827,200
3.6000 3.6700 3.3550 3.4300 2,013,400
3.4500 3.5800 3.3200 3.5500 1,516,500
3.5800 3.6600 3.4800 3.4900 1,149,800
2 · 6-K Pre-market · 09:03 ET 6-K ↗
Weekend
Weekend
3.6600 3.6650 3.5500 3.5800 1,679,800
3.8900 3.8950 3.7200 3.7400 1,338,100
3.7500 3.9300 3.7500 3.9200 820,100
3.7700 3.7750 3.6800 3.7300 1,133,300
3.9400 3.9400 3.7200 3.8000 952,600
Weekend
Weekend
3.6600 3.9700 3.5200 3.8600 2,069,600
3.9900 3.9950 3.6600 3.6600 2,360,700
4.1800 4.2200 3.9100 3.9800 1,886,300
4.1300 4.2400 4.0200 4.1300 1,586,400
4.1400 4.2650 3.9840 4.2100 1,354,300
Weekend
Weekend
4.0000 4.2250 3.9480 4.1700 2,484,500
4.0400 4.3000 3.5650 3.9900 4,940,000
1 · 6-K Next filing day · accepted 29 Oct, 19:10 ET 6-K ↗
4.2600 4.3600 4.1850 4.2500 1,846,900
4.2800 4.3800 4.2200 4.2600 1,130,600
4.5300 4.5600 4.2900 4.3100 1,294,900
Weekend
Weekend
4.1000 4.5900 4.1000 4.5000 2,411,000

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.

24 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 15 Oct, 22:50 ET Summarise
23 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 01 Oct, 19:36 ET Summarise
22 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:47 ET Summarise
21 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 17 Aug, 21:12 ET Summarise
20 6-K FORM 6-K (opens SEC filing in a new tab) Next filing day · accepted 29 Jul, 20:10 ET Summarise
19 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 16 Jul, 19:05 ET Summarise
18 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 30 Jun, 19:10 ET Summarise
17 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 23 Jun, 18:09 ET Summarise
16 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 04 Jun, 18:42 ET Summarise
15 6-K 6-K (opens SEC filing in a new tab) Pre-market · 09:01 ET Summarise
14 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 12 May, 21:48 ET Summarise
13 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 30 Apr, 17:42 ET Summarise
12 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:33 ET Summarise
11 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:50 ET Summarise
10 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 31 Mar, 18:30 ET Summarise
9 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 11 Mar, 20:34 ET Summarise
8 40-F 40-F (opens SEC filing in a new tab) Next filing day · accepted 11 Mar, 18:47 ET Summarise
7 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 26 Feb, 20:13 ET Summarise
6 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 26 Jan, 21:01 ET Summarise
5 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 08 Jan, 19:57 ET Summarise
4 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
3 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:30 ET Summarise
2 6-K 6-K (opens SEC filing in a new tab) Pre-market · 09:03 ET Summarise
1 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 29 Oct, 19:10 ET Summarise