Hallador Energy Company HNRG

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Hallador Energy Company - Common Stock · Company · Nasdaq · Utilities / Utilities - Independent Power Producers

Paper trade (simulated — no real money)

Fill: USD 11.0500 · FX 1 USD = 1.277900 SGD · about SGD 14.1208 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 20.67 → 11.05 · -46.5%
23.81017.43011.050 1,2 3 4 5 6,7 8 9 10 11 12,13 14 15,16,17 18,19,20 21 22 23 24 25 26 27,28 29 30 31 Oct 25Jan 26Apr 26Jul 26Oct 26

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

Price & SEC Filing History 25 Oct 2025 — 26 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.

No data yet
Weekend
Weekend
11.1200 11.1650 10.7500 11.0500 773,500
11.1900 11.2300 10.7300 11.2200 1,216,300
11.6000 11.8600 11.1500 11.4500 960,600
11.6600 11.8760 11.2600 11.3400 796,300
11.9300 12.1700 11.3800 11.6600 1,404,700
Weekend
Weekend
12.6900 12.7600 11.4600 11.7100 1,607,700
12.4200 12.9000 11.8900 12.7100 971,100
13.6100 13.9400 11.7100 12.4200 1,333,900
14.3000 14.6800 13.9150 13.9500 747,300
13.7400 15.0300 13.7400 14.5600 1,179,100
Weekend
Weekend
14.5000 14.6000 13.8100 13.9200 1,920,100
31 · 8-K After market open · 12:59 ET 8-K ↗
14.7600 15.3900 14.3600 14.5000 2,616,400
14.4500 14.5900 13.3800 13.6500 1,304,900
14.0200 15.1200 13.9200 14.8100 1,019,500
13.4500 14.1100 13.3700 13.9500 590,800
Weekend
Weekend
13.6900 14.0600 13.3800 13.4900 541,500
13.8700 13.8900 13.1900 13.5200 1,037,900
14.1700 14.2600 13.8300 13.8700 530,100
14.4200 14.4700 14.0250 14.0900 552,100
14.7000 14.9800 14.0300 14.3900 611,500
Weekend
Weekend
14.5100 14.8000 14.3200 14.7200 614,100
14.4100 14.6900 14.1300 14.5400 686,200
14.9700 15.0000 14.5000 14.5100 523,700
15.0400 15.2550 14.9300 15.0700 636,900
15.1500 15.3000 14.9950 15.0100 482,700
Weekend
Weekend
15.1900 15.4100 14.9000 15.1200 1,004,800
14.9000 16.1250 14.8800 15.1700 1,714,200
30 · 8-K Pre-market · 08:05 ET 8-K ↗
14.5100 14.8310 14.4450 14.6900 964,200
14.5300 14.5950 13.9550 14.3300 724,500
15.0100 15.2200 14.4800 14.4800 609,600
Weekend
Weekend
15.7700 15.7950 15.3300 15.3400 490,900
16.2300 16.4900 15.5600 15.6000 651,300
17.1400 17.1400 16.3900 16.5200 475,500
16.7800 17.3000 16.7000 16.9000 835,800
No trading
Weekend
Weekend
16.0500 16.7000 16.0500 16.6000 477,700
16.3500 16.3650 15.5500 16.1100 801,800
16.3100 16.5850 16.0600 16.3500 491,300
16.4250 16.7000 16.1900 16.3700 454,600
16.3000 16.7250 16.2700 16.5800 522,000
Weekend
Weekend
16.5900 16.7600 16.1050 16.2400 613,500
16.3000 16.8000 16.2900 16.6300 391,800
16.1300 16.6700 16.0800 16.2400 462,200
16.0900 16.5400 15.9100 16.3600 745,200
15.2300 16.1750 14.8300 15.9600 956,100
Weekend
Weekend
15.8600 16.2100 15.3800 15.3800 551,400
16.1900 16.4700 15.5000 15.5300 594,300
15.8300 16.4000 15.7200 16.3800 616,300
15.8300 16.1150 15.5100 15.7900 718,500
16.0900 16.2300 15.5650 16.1900 572,400
Weekend
Weekend
29 · 8-K After-hours · 16:35 ET 8-K ↗
15.4800 16.2600 15.4800 16.1600 765,600
15.7700 16.2850 15.2800 15.4900 656,500
15.9300 16.1500 15.5300 15.7700 760,200
15.0100 15.9310 15.0000 15.6400 1,592,000
28 · 10-Q After-hours · 17:20 ET 10-Q ↗ 27 · 8-K After-hours · 17:00 ET 8-K ↗
14.7700 16.2000 14.6840 15.8800 2,316,300
Weekend
Weekend
14.8200 15.0200 14.3500 14.7600 555,400
14.7500 15.4000 14.5000 14.8200 501,300
15.1300 15.4200 14.5900 14.7700 1,040,400
15.0800 15.5000 14.8400 15.1300 759,400
14.1000 15.0900 13.9000 14.9400 991,300
Weekend
Weekend
14.8600 15.0100 14.1600 14.2200 768,100
14.2400 14.8900 14.0900 14.6100 1,209,700
14.4900 14.6800 13.6500 13.7000 1,162,000
14.9800 14.9800 14.4200 14.6100 636,000
15.3900 15.4250 14.6500 15.2100 811,000
Weekend
Weekend
16.0400 16.0400 15.1500 15.2400 479,800
16.3700 16.5570 15.7700 16.0500 460,700
16.5000 16.8200 16.2550 16.2900 478,300
15.9600 16.7600 15.9600 16.6100 731,200
16.1000 16.2000 15.4700 15.7700 709,100
Weekend
Weekend
15.7300 15.9900 15.4000 15.9800 917,500
16.5400 16.7650 15.9300 16.0500 581,600
17.1400 17.4500 16.1500 16.4100 650,200
17.0500 17.4500 16.9050 17.2400 613,200
16.9400 17.2030 16.4400 16.6800 415,500
Weekend
Weekend
16.4500 16.5600 16.1700 16.3300 383,000
16.2800 16.9500 16.0000 16.5400 461,400
15.4200 16.3300 15.4200 16.0900 911,500
16.2200 16.3000 15.3100 15.5300 944,100
16.3900 16.8800 15.9200 16.4800 776,500
Weekend
Weekend
No trading
17.0000 17.2600 15.9500 16.2500 870,600
17.8200 18.1800 16.7750 16.7900 1,314,600
16.9400 17.6200 16.7350 17.3900 948,400
17.1900 17.6000 16.7500 16.9300 741,900
Weekend
Weekend
26 · 8-K After-hours · 17:06 ET 8-K ↗
18.1400 18.4400 17.3160 17.5300 1,227,900
17.7900 18.3100 17.3800 18.1500 572,200
17.7400 17.8700 16.9500 17.7000 1,027,800
18.3800 19.2400 17.7150 17.7300 634,300
19.2750 19.2750 18.0100 18.9300 1,120,800
Weekend
Weekend
No trading
18.5100 19.8600 18.4500 19.4500 1,583,500
17.1900 18.1700 17.1900 17.6700 812,200
16.4500 17.4200 16.3700 17.3000 888,700
16.5900 16.8850 16.1100 16.4500 697,400
Weekend
Weekend
16.2700 16.7300 16.2000 16.4400 512,200
25 · 8-K After-hours · 17:28 ET 8-K ↗
15.9500 16.3650 15.8200 16.1300 737,600
16.1200 16.5400 15.6800 15.8100 696,600
17.0900 17.1800 15.6600 16.1900 833,600
17.5700 17.7350 16.8800 16.9200 525,900
Weekend
Weekend
24 · 8-K After-hours · 16:23 ET 8-K ↗
18.5400 18.5500 16.3100 16.6600 1,245,000
18.3550 19.1900 17.7200 18.9500 888,700
23 · 8-K After-hours · 16:30 ET 8-K ↗
18.6400 18.6400 17.8200 18.1400 617,300
19.3500 20.0600 18.8300 18.8800 712,800
22 · 8-K Pre-market · 06:00 ET 8-K ↗
19.1600 19.3600 18.8100 19.0100 476,100
Weekend
Weekend
21 · 8-K After-hours · 17:20 ET 8-K ↗
19.7600 19.8850 19.0800 19.2600 579,900
19.4200 19.8700 19.2200 19.7800 583,800
18.7700 19.7750 18.5200 19.6300 771,700
18.3200 19.0400 18.1800 19.0200 716,400
No trading
Weekend
Weekend
17.9000 18.5900 17.8400 17.9600 634,600
17.4000 18.1100 17.2600 17.7800 574,100
18.1300 18.2450 17.1600 17.6100 940,900
18.3700 18.4100 17.4000 18.0100 640,000
18.1700 18.8100 18.0900 18.3000 705,600
Weekend
Weekend
19.0700 19.2270 18.1300 18.1500 805,100
19.4100 19.4100 18.6500 19.3900 1,193,400
19.9300 19.9700 18.8500 19.4200 1,094,500
19.0600 19.8800 18.5500 19.7500 889,200
18.7300 19.4000 18.5100 19.3200 892,100
Weekend
Weekend
18.8300 19.9000 18.3700 18.8100 1,036,900
21.7100 22.3990 18.5400 18.8700 2,989,700
20 · 10-Q After-hours · 17:21 ET 10-Q ↗ 19 · 8-K After-hours · 17:10 ET 8-K ↗ 18 · 8-K After-hours · 17:00 ET 8-K ↗
17.4300 18.9600 17.0700 18.5500 2,678,800
15.8100 17.9000 15.7500 17.6600 2,415,800
15.6800 16.1100 15.4000 15.5600 592,700
Weekend
Weekend
15.3900 15.8500 15.3500 15.6200 712,100
15.1500 15.7100 15.1200 15.5300 888,600
15.6300 15.9400 15.1250 15.1600 1,116,100
16.1600 16.2900 15.3300 15.4600 975,300
15.8700 16.4550 15.8700 16.3900 737,600
Weekend
Weekend
15.7600 15.9900 15.5550 15.9700 818,600
16.0500 16.8000 15.8200 15.9400 983,100
15.9300 16.1300 15.6750 16.0500 676,600
15.3100 16.0500 15.1500 15.8400 1,149,800
15.7300 15.8250 14.8900 15.2000 926,200
Weekend
Weekend
16.5600 16.7600 15.4750 15.7500 1,608,800
16.0000 16.6400 15.7470 16.5800 1,332,800
17 · DEFA14A After-hours · 17:27 ET DEFA14A ↗ 16 · DEF 14A After-hours · 17:27 ET DEF 14A ↗ 15 · 8-K After-hours · 17:10 ET 8-K ↗
15.1900 16.0600 15.1000 15.8200 801,900
15.4700 15.9200 14.6800 15.0900 850,300
15.0700 15.6350 14.8450 15.1600 501,000
Weekend
Weekend
15.2400 15.3400 15.0200 15.2000 471,100
15.6100 15.8400 15.1600 15.2700 595,000
15.9200 16.3600 15.3300 15.7300 762,900
16.0100 16.1250 15.5600 15.6400 703,800
15.9400 16.5100 15.8500 16.0800 803,900
Weekend
Weekend
No trading
15.8400 16.1800 15.4400 15.8300 964,200
16.3800 16.6150 15.8000 15.8700 986,300
16.8000 16.9500 15.9200 16.2800 1,223,700
17.4700 17.8700 16.7400 16.8000 766,900
Weekend
Weekend
14 · 8-K After-hours · 17:15 ET 8-K ↗
18.3500 18.9900 17.3000 17.5700 1,516,100
18.7400 19.7200 18.1710 18.3800 2,745,300
16.6300 17.6500 16.6000 17.6300 778,500
15.6300 16.9000 15.6300 16.6300 784,700
15.7400 16.4000 15.6500 15.7200 612,300
Weekend
Weekend
16.5600 16.5600 15.3300 15.7200 1,688,200
16.4000 17.6100 16.0100 16.8100 930,300
16.4000 16.6300 15.9900 16.4200 683,500
16.1000 16.8850 15.7600 16.7500 966,000
17.2700 17.8000 15.4000 15.9700 1,811,500
Weekend
Weekend
17.4500 18.5000 15.9110 17.1000 2,471,600
13 · 8-K After-hours · 17:27 ET 8-K ↗ 12 · 10-K After-hours · 17:26 ET 10-K ↗
18.5800 20.1500 18.4700 19.3300 896,500
18.8200 19.2600 18.2700 18.9200 626,000
11 · 8-K After-hours · 17:27 ET 8-K ↗
18.6200 19.8100 18.4850 19.0900 731,800
10 · 8-K After-hours · 17:25 ET 8-K ↗
19.4000 19.5180 18.5300 18.8500 457,300
Weekend
Weekend
19.5000 20.6700 19.2100 19.6900 651,600
18.7400 19.8700 18.3500 19.7300 688,700
18.8800 19.3350 18.5400 18.9500 333,400
18.1400 18.8000 17.8800 18.7600 612,500
18.2200 19.2500 18.1900 18.9700 349,100
Weekend
Weekend
18.2400 18.4000 17.9400 18.1800 313,500
18.6800 18.6800 17.9100 18.5200 244,700
18.4700 18.8600 18.3050 18.5800 269,600
17.8900 18.3300 17.5700 18.2300 280,400
18.1900 18.4000 17.8000 17.9300 473,200
Weekend
Weekend
18.7600 19.1200 18.1900 18.4000 482,500
18.4800 19.1200 18.1220 18.8400 321,600
19.0400 19.4700 18.5100 18.6600 315,200
20.0000 20.0600 18.7050 18.9600 367,000
No trading
Weekend
Weekend
19.3600 20.2900 19.2500 20.0900 496,100
20.9000 21.1250 19.2900 19.3600 471,700
21.0200 21.5500 20.0400 20.3300 404,700
21.1200 21.3340 19.7150 20.4900 767,000
20.5500 21.3600 20.2600 20.8600 668,100
Weekend
Weekend
19.2500 20.7300 19.2500 20.0600 884,900
17.3300 18.8100 17.0500 18.7800 936,400
18.5900 18.5900 16.7100 17.7800 780,600
18.3550 18.6200 17.7300 18.5600 346,800
18.4800 18.7400 17.8600 17.9400 397,900
Weekend
Weekend
17.9800 18.8000 17.9400 18.4900 596,900
18.3600 18.6350 17.8700 18.1900 634,600
18.8000 18.8000 17.7700 18.2100 343,700
18.7500 19.1300 18.0400 18.6700 554,600
19.9400 19.9500 18.6800 18.7000 350,300
Weekend
Weekend
20.6300 20.8000 19.8500 20.0000 344,200
20.1100 21.0050 19.9700 20.5000 543,500
20.3700 20.3700 19.5100 20.1000 481,200
19.7600 20.4100 19.5800 19.9500 422,300
No trading
Weekend
Weekend
19.3000 20.7300 19.1500 20.2100 986,700
9 · 8-K After-hours · 17:08 ET FORM 8-K ↗
19.0500 19.9300 18.8200 19.4300 960,700
8 · 424B5 After-hours · 16:45 ET 424B5 ↗
19.1000 20.1400 18.3900 18.7900 1,790,500
7 · 424B5 After-hours · 16:22 ET 424B5 ↗ 6 · S-3ASR After-hours · 16:03 ET S-3ASR ↗
20.3500 21.0600 20.0810 20.6200 294,200
19.6000 20.7400 19.6000 20.2900 231,000
Weekend
Weekend
18.7000 20.2000 18.3200 19.5700 322,400
18.0100 18.8200 17.8200 18.6300 609,200
18.9900 19.0710 17.6500 18.1200 748,800
19.3800 19.5400 18.9600 19.0900 464,400
5 · 8-K Pre-market · 08:05 ET 8-K ↗
19.5300 19.8000 18.6800 19.3800 518,900
Weekend
Weekend
19.0800 19.5100 19.0400 19.3600 221,900
No trading
19.1200 19.1700 18.8500 19.0400 262,800
19.3500 19.3500 18.8500 19.0200 250,100
19.1100 19.5400 19.0000 19.2900 243,200
Weekend
Weekend
19.4900 19.7960 18.7900 19.3200 311,900
No trading
19.4000 19.6000 19.1100 19.4900 322,300
19.7400 20.2700 19.4480 19.5300 384,800
20.0000 21.2000 19.4900 19.7500 1,096,700
Weekend
Weekend
18.4650 19.6500 18.2800 19.2800 1,126,200
17.3100 18.8600 17.2890 18.3800 948,900
20.1600 20.3100 17.2300 17.3100 1,401,000
4 · 424B5 After-hours · 16:08 ET 424B5 ↗
21.2000 21.4000 20.3000 20.4200 501,400
22.4500 22.5800 21.0440 21.2100 432,400
Weekend
Weekend
22.9400 23.4400 22.1150 22.3000 619,400
21.9600 22.9600 21.8400 22.7900 365,300
22.3200 22.4210 21.5050 22.0300 374,100
21.1200 22.6300 21.0600 22.3400 505,400
20.4600 21.3200 20.0500 21.1600 994,200
Weekend
Weekend
19.5200 20.2000 19.5200 19.9500 401,300
3 · 8-K After-hours · 16:00 ET 8-K ↗
19.0200 19.8200 19.0200 19.6200 702,000
19.2400 19.4500 19.0990 19.2500 495,100
19.8500 20.0150 18.9300 19.1800 333,800
20.1600 20.1600 19.5500 19.8500 446,000
Weekend
Weekend
20.0300 20.4000 19.8900 20.3900 176,500
No trading
19.6500 19.9300 19.2700 19.8900 431,600
19.7600 19.9400 19.1950 19.6500 435,600
19.9700 20.2000 19.4200 19.7600 1,075,000
Weekend
Weekend
19.9200 20.1400 18.8800 19.2100 733,800
21.2700 21.8000 19.7200 20.0300 459,400
20.4500 21.3200 20.2300 20.8100 415,900
20.0100 20.6600 19.6300 20.4300 448,700
20.3000 21.0000 19.9200 20.2500 814,000
Weekend
Weekend
20.4400 20.8900 19.9000 20.3400 631,200
22.3800 23.2700 20.5300 20.9500 672,400
23.7800 24.0000 21.9000 22.7200 1,069,400
23.5000 24.7000 21.5510 23.8100 2,069,500
2 · 10-Q After-hours · 17:24 ET 10-Q ↗ 1 · 8-K After-hours · 17:05 ET 8-K ↗
20.1700 20.2800 19.4350 20.0100 483,800
Weekend
Weekend
20.1500 20.2420 19.3340 19.6700 387,800
20.9100 21.2900 20.3100 20.4400 261,000
20.4400 21.0500 20.0500 20.7100 310,500
21.3600 21.5600 20.2100 20.3500 385,300
21.0700 22.0600 20.6500 21.9600 321,900
Weekend
Weekend
20.3600 22.0600 20.3100 21.6300 578,900
20.2100 20.4800 19.9200 20.2200 197,200
21.0500 21.2400 20.2600 20.5400 539,200
20.4800 21.1300 20.3700 21.0500 201,500
21.0500 21.1000 20.0780 20.6700 294,300
Weekend
Weekend

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.

31 8-K 8-K (opens SEC filing in a new tab) After market open · 12:59 ET Summarise
30 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:05 ET Summarise
29 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:35 ET Summarise
28 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:20 ET Summarise
27 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
26 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:06 ET Summarise
25 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:28 ET Summarise
24 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:23 ET Summarise
23 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
22 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:00 ET Summarise
21 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:20 ET Summarise
20 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:21 ET Summarise
19 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:10 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
17 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 17:27 ET Summarise
16 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 17:27 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:10 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:15 ET Summarise
13 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:27 ET Summarise
12 10-K 10-K (opens SEC filing in a new tab) After-hours · 17:26 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:27 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:25 ET Summarise
9 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 17:08 ET Summarise
8 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:45 ET Summarise
7 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
6 S-3ASR S-3ASR (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:05 ET Summarise
4 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:00 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:24 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:05 ET Summarise