Black Hills Corporation BKH

Open calendar →

Black Hills Corporation 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 57.99 → 74.98 · 29.3%
76.83066.35055.870 1 2 3,4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22,23 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
74.6900 75.1060 74.0700 74.9800 390,991
74.2000 74.5700 73.4100 74.3000 580,000
74.6600 75.6700 74.3000 74.4800 581,600
Weekend
Weekend
76.5200 76.7400 74.4200 74.6100 892,800
74.3500 75.9200 74.3500 75.8100 929,000
75.4000 75.6400 74.1500 74.2100 651,100
76.3900 76.6200 74.9800 75.5400 708,700
75.4300 76.4000 75.3800 75.8000 808,500
Weekend
Weekend
73.9500 75.7700 73.3700 75.2100 965,300
72.8200 73.9500 72.8200 73.2800 982,700
73.1100 74.2300 72.6400 72.9000 748,400
72.9000 74.2900 72.6900 73.2500 624,600
73.4900 74.3200 72.1200 72.1600 899,300
Weekend
Weekend
No trading
74.1300 74.6100 73.2400 73.7900 934,100
74.5400 74.9000 73.5800 73.6400 601,700
75.1100 75.3100 74.3100 74.4000 688,500
75.3700 75.5900 74.1000 75.2500 940,700
Weekend
Weekend
74.9400 76.3000 74.7400 76.0400 2,010,100
74.9900 75.0600 74.1000 74.3100 507,600
74.1600 74.6800 73.5600 74.5600 616,400
73.2700 73.9300 72.6300 73.8400 741,200
72.5500 73.5400 72.5500 72.9200 1,169,400
Weekend
Weekend
No trading
72.3100 73.0000 71.8100 72.7500 1,258,300
73.5100 73.7100 71.6300 72.0400 1,034,300
74.2400 74.4600 72.5200 73.5100 869,300
72.5100 74.1700 72.0200 73.8000 861,000
Weekend
Weekend
71.9700 73.8400 71.8900 73.5000 763,100
73.1300 73.6300 71.6800 71.7800 1,240,200
69.5900 72.4700 69.5900 71.9400 2,318,400
72.0900 73.0000 67.4700 67.7800 3,640,500
72.4200 73.3600 71.8900 72.1900 1,237,300
Weekend
Weekend
72.3000 73.4200 71.9400 72.7800 1,107,600
72.3600 72.3600 70.7200 71.9000 901,500
71.6900 73.2400 70.7600 71.4700 1,608,700
70.5300 72.4000 70.5300 72.0500 953,200
72.3300 72.6700 70.3900 70.4200 997,800
Weekend
Weekend
73.2600 73.8400 72.7100 72.8200 986,900
74.2000 74.7300 73.0600 73.0900 612,500
74.6400 75.1500 74.0000 74.5000 724,800
74.4700 75.1200 74.1900 74.7600 450,000
No trading
Weekend
Weekend
74.0500 74.7000 73.4100 74.2900 626,800
73.4000 74.3100 73.1800 74.1600 722,900
73.4700 74.1600 72.9700 73.8400 730,000
73.5500 74.1100 73.2000 73.2900 733,100
23 · 424B5 Pre-market · 07:55 ET 424B5 ↗ 22 · S-3ASR Pre-market · 07:11 ET S-3ASR ↗
73.7100 74.8600 73.4500 73.9800 1,076,800
Weekend
Weekend
21 · 8-K After-hours · 16:27 ET 8-K ↗
73.4800 73.4800 71.9400 72.8400 1,476,900
74.2200 74.7200 73.9200 74.4500 672,100
73.6900 74.1700 72.9800 74.0500 778,900
73.6700 74.3500 73.0800 74.3000 982,800
75.6400 75.9800 73.4100 73.4400 961,300
Weekend
Weekend
75.5000 75.9000 74.9000 75.2300 763,400
20 · 10-Q After market open · 11:46 ET 10-Q ↗
72.5100 76.6300 71.8000 75.2200 1,275,300
19 · 8-K After-hours · 16:44 ET 8-K ↗
73.7000 74.4900 72.9000 73.9200 1,357,900
75.1200 75.4800 73.7400 73.8400 710,200
74.9200 75.7500 73.9300 74.9200 748,400
Weekend
Weekend
75.3000 76.4500 74.8600 75.5000 776,500
18 · 8-K Next filing day · accepted 30 Apr, 18:32 ET 8-K ↗
74.3400 75.5100 74.3400 75.2900 932,100
74.7000 75.3900 74.2200 74.3100 661,900
76.0200 76.1700 74.7600 75.2400 601,800
74.6100 75.6600 74.2000 75.2200 625,100
Weekend
Weekend
74.3300 75.2300 74.0400 74.1700 468,500
73.1800 74.8000 72.6800 74.6700 635,600
74.0700 74.0800 71.7900 72.5300 989,300
75.8800 75.8800 73.2400 73.5100 853,700
76.0700 76.9000 75.3900 75.6000 621,700
Weekend
Weekend
76.7200 76.8100 75.5500 76.0700 986,600
76.3100 77.2300 75.9300 76.8300 806,500
76.6500 78.6900 75.9700 76.5600 1,744,100
72.0100 77.2500 71.1200 76.6000 3,062,600
73.6300 73.6900 71.7100 72.1700 730,500
Weekend
Weekend
73.8100 73.9400 73.3600 73.8000 700,300
73.7000 74.5900 73.5800 74.0100 793,700
73.0300 73.9900 72.5000 73.8200 958,600
71.3000 74.2000 71.1000 72.9900 1,625,600
70.6900 71.4300 70.3300 71.2600 721,200
Weekend
Weekend
No trading
17 · 8-K After-hours · 16:22 ET 8-K ↗
70.1000 71.0000 69.6100 70.8300 1,121,600
69.2500 70.7100 69.1600 69.8900 985,900
69.6100 69.7400 67.5800 69.4100 1,032,900
69.4200 70.0800 68.7600 69.1200 843,500
Weekend
Weekend
68.2300 69.0500 67.9100 68.7000 1,492,500
68.6200 69.3000 68.2400 68.4700 722,500
69.1500 69.4800 68.4200 68.8500 599,600
67.9100 69.8200 67.8200 68.5500 685,900
68.7500 69.3400 68.1000 68.2300 869,500
Weekend
Weekend
70.9600 71.1400 67.4500 67.8400 2,513,700
71.2100 71.7400 70.4800 70.9200 661,100
16 · DEF 14A After-hours · 16:10 ET DEF 14A ↗
71.2400 71.3700 69.7800 71.3300 1,113,600
72.2400 72.2800 71.2300 71.5900 629,200
73.2000 73.2000 71.5200 71.7100 736,700
Weekend
Weekend
71.7100 73.0700 70.8000 72.4600 1,298,600
69.6100 71.7100 69.0100 70.6500 944,800
70.9700 71.4400 70.0300 70.1300 785,200
71.9600 72.5800 71.1000 71.2200 723,000
73.2900 73.4300 71.4800 72.5500 993,400
Weekend
Weekend
73.6800 73.8900 72.3200 73.5100 928,300
74.9300 75.1900 73.5500 74.2900 916,500
74.2300 75.8300 73.0600 75.7600 1,236,400
72.7300 74.5100 71.8100 74.3000 701,900
73.3900 74.3600 72.9400 73.4900 767,800
Weekend
Weekend
73.6800 74.3700 73.3600 73.6600 710,700
73.5200 74.0500 73.0800 73.8300 787,000
73.6800 73.7800 72.6000 73.4200 583,900
73.5400 73.7600 72.3000 73.7200 753,700
73.2700 74.5500 72.8200 73.4800 783,000
Weekend
Weekend
73.5200 73.5200 72.4200 73.3500 781,300
15 · 8-K After-hours · 16:11 ET 8-K ↗
73.3200 74.0800 72.3500 73.0900 1,154,800
73.3700 74.6800 73.0500 73.0700 1,587,600
74.0700 75.1400 73.4200 73.5700 1,409,300
No trading
Weekend
Weekend
73.0900 74.2300 73.0900 74.0500 925,500
73.1200 74.0800 72.4800 73.2100 1,219,200
14 · 10-K After market open · 12:58 ET 10-K ↗
72.5300 73.3800 72.1300 72.6100 1,120,600
71.6200 72.6100 71.3500 72.4000 1,569,800
72.1600 72.2800 70.4300 71.4800 957,300
Weekend
Weekend
13 · 424B3 After-hours · 16:27 ET 424B3 ↗
75.0000 75.8700 72.2800 72.3000 1,063,500
74.4600 75.4900 73.6500 74.4400 1,184,100
12 · 8-K After-hours · 16:28 ET 8-K ↗
74.5500 74.9900 73.1300 73.7400 1,350,300
72.6300 74.1300 72.0000 74.0400 1,165,900
73.2600 73.3300 72.1000 72.4600 1,428,000
Weekend
Weekend
72.5500 73.2700 71.8000 72.9800 1,663,600
72.3600 73.1700 72.1000 72.8100 1,196,200
73.5700 73.5800 71.8200 72.1600 1,190,500
73.0700 74.2300 72.5900 73.6200 883,300
72.1900 73.0200 71.7700 72.6800 991,900
Weekend
Weekend
72.3300 72.5700 71.1200 71.6800 1,412,000
73.4600 73.7700 72.3000 72.3800 849,600
72.8900 73.5200 72.2400 73.2800 657,900
72.9000 73.2700 71.7600 72.5200 572,900
No trading
Weekend
Weekend
72.5900 73.3600 72.2500 73.3400 928,100
72.0700 73.7800 72.0700 73.1400 755,600
70.8300 72.2200 70.5900 72.0800 758,100
70.6300 71.7600 70.2900 70.7300 811,500
70.5600 71.6700 70.1400 70.6000 519,600
Weekend
Weekend
71.4100 72.0100 69.9300 70.7200 994,500
71.7100 72.9100 70.0500 71.1900 1,619,100
69.5800 71.9700 69.1800 71.9200 2,053,300
69.0400 69.5400 68.6800 69.3900 694,400
69.4000 69.7500 68.3400 69.3700 637,900
Weekend
Weekend
69.2700 70.0000 68.5200 69.6500 738,300
No trading
69.6000 70.1400 69.3400 69.4200 540,400
69.9400 69.9700 69.3300 69.5900 489,100
69.4900 70.1400 69.3400 69.7500 558,500
Weekend
Weekend
69.4400 69.8500 68.8900 69.3100 456,700
No trading
69.5800 69.5800 68.9300 69.4500 249,600
68.7500 69.4700 68.4500 69.0800 519,300
67.3700 69.1200 67.3700 68.8600 781,800
Weekend
Weekend
68.9300 69.2700 67.2500 67.5000 2,451,900
70.8000 70.8700 68.8400 68.9300 1,650,200
71.1600 71.1600 69.7300 70.5900 1,251,800
72.4400 72.4400 70.6100 70.6700 992,600
72.9100 73.0000 70.9600 72.0700 1,125,300
Weekend
Weekend
72.2100 73.0900 72.1600 72.6300 1,141,100
71.3900 72.6700 71.2100 71.9900 1,209,300
70.5000 71.2800 70.3500 71.2100 805,200
70.2000 71.3000 70.0000 70.5200 747,900
70.0400 70.7300 69.5700 70.1200 866,400
Weekend
Weekend
69.9900 70.2300 69.4000 69.9400 825,300
71.0000 71.1800 70.0000 70.0400 984,000
72.0100 72.4800 70.6800 71.1500 1,220,900
72.7400 72.8400 71.4900 71.7600 1,179,800
73.1500 73.6200 72.2000 72.4600 1,293,200
Weekend
Weekend
73.2500 74.0200 72.9300 73.7900 952,600
No trading
72.0000 73.0200 71.8000 72.9900 1,402,800
71.1000 72.1200 70.8700 71.9900 1,011,800
70.0700 71.3900 69.6000 71.1000 1,346,300
Weekend
Weekend
70.5000 70.6900 69.7700 70.0700 1,180,400
70.0400 71.7100 69.9300 69.9900 1,801,900
70.3200 70.9400 69.5800 69.6900 1,224,400
69.7800 70.6900 69.5600 70.2900 1,346,400
69.3200 70.5200 69.1600 69.5400 1,607,600
Weekend
Weekend
70.0000 71.2000 68.5900 69.9400 1,657,900
71.8300 71.9700 70.0300 70.3000 1,635,800
72.0000 72.2200 71.3300 72.1700 1,615,000
71.2600 72.0200 70.9000 71.9900 2,045,100
69.7200 71.3400 69.6900 71.1300 1,787,400
Weekend
Weekend
68.5000 70.4500 67.9900 69.7200 1,994,400
11 · 10-Q After market open · 11:57 ET 10-Q ↗
65.2000 68.5000 64.7400 67.7500 1,842,700
10 · 8-K After-hours · 16:48 ET 8-K ↗
64.7000 65.0500 64.3400 64.7500 786,000
63.9900 64.7800 63.7900 64.6200 584,400
63.0900 63.8800 62.2700 63.8700 666,300
Weekend
Weekend
63.4900 63.8800 62.6600 63.4300 1,237,400
63.7900 64.6400 63.3600 63.6500 637,200
65.1900 65.4000 63.5400 63.7700 762,600
66.0000 66.0000 65.2000 65.3500 911,500
65.7800 66.1400 65.1800 65.9200 720,700
Weekend
Weekend
65.7500 66.2600 65.3100 66.1600 783,300
65.5000 65.7400 64.6700 65.4500 1,048,600
64.9400 65.4300 64.1700 65.2500 727,600
64.6500 64.9700 64.3900 64.5700 643,600
63.3300 64.9000 63.2200 64.8300 983,700
Weekend
Weekend
62.4500 63.1100 62.1000 63.0900 991,200
62.0600 62.7200 61.8500 62.4000 1,414,500
61.1000 62.1900 61.1000 62.0600 925,700
59.9500 61.3200 59.9500 61.0500 560,900
60.3600 60.8300 59.9100 60.0400 373,800
Weekend
Weekend
61.2600 61.5600 60.3700 60.4200 377,000
61.9800 62.1100 60.9800 61.0500 555,100
61.5300 61.8000 61.1000 61.7800 484,100
60.5100 61.2800 60.3900 61.2200 403,700
60.1500 60.6700 60.1500 60.5200 316,600
Weekend
Weekend
59.8300 60.5200 59.7700 60.1700 476,700
9 · 8-K After-hours · 16:10 ET FORM 8-K ↗
60.1800 60.3100 59.3300 59.7600 682,200
61.6400 61.6400 60.4300 60.4900 408,100
61.2500 61.7500 60.9800 61.5900 553,800
8 · 8-K After-hours · 16:11 ET FORM 8-K ↗
60.9300 61.2400 60.6000 61.1200 649,800
Weekend
Weekend
7 · 424B2 After-hours · 16:15 ET 424B2 ↗
60.2500 60.9500 60.1100 60.9100 399,800
60.2500 60.6300 59.6900 60.0200 646,100
6 · 424B5 Pre-market · 08:45 ET 424B5 ↗
59.4600 60.1300 59.3700 60.0400 507,400
58.8000 59.6100 58.7100 59.5000 341,200
58.7500 59.1500 58.6500 58.9200 489,100
Weekend
Weekend
58.9200 58.9200 58.3200 58.6100 888,800
58.2600 59.1000 58.1000 58.7100 446,300
58.5700 59.0000 58.2900 58.4900 669,600
59.1700 59.4600 58.2600 58.3400 562,800
5 · 8-K After-hours · 17:17 ET 8-K ↗
59.2200 59.7800 59.2200 59.4500 439,800
Weekend
Weekend
59.2000 59.4600 59.0100 59.3900 338,100
58.7900 59.4500 58.4500 59.4200 468,100
58.5700 58.9600 58.2500 58.7200 359,100
58.2900 58.8400 58.0600 58.6500 425,700
59.5700 59.5700 58.2200 58.4600 383,000
Weekend
Weekend
59.7000 59.9800 59.4100 59.6900 429,500
59.8600 60.0200 59.0300 59.5600 641,700
59.3000 59.6900 59.1100 59.4500 438,000
59.4500 60.0400 59.1200 59.6400 550,400
No trading
Weekend
Weekend
59.8000 60.1300 59.6700 59.8100 565,300
60.4500 60.4500 59.7000 59.7400 452,700
59.7400 60.3600 59.5700 60.3200 546,400
60.2500 60.4300 59.7600 59.7600 727,900
60.8900 61.0100 60.2200 60.2500 506,100
Weekend
Weekend
60.0500 61.1300 60.0100 61.0400 608,100
60.0000 60.2700 59.6300 59.7200 1,038,500
61.5300 62.1400 60.0100 60.0300 1,384,800
4 · 8-K After-hours · 16:22 ET FORM 8-K ↗
59.5000 61.2200 59.5000 60.8700 1,326,500
3 · 8-K Pre-market · 07:12 ET FORM 8-K ↗
60.9400 61.2100 60.2700 60.3500 893,600
Weekend
Weekend
61.6100 61.8700 61.0500 61.6200 1,025,300
61.3700 61.9400 61.2500 61.6100 640,800
61.0300 61.5600 60.8000 61.4800 940,400
60.5500 61.2800 60.2000 61.0100 606,600
60.9400 61.0500 60.1900 60.3800 576,000
Weekend
Weekend
60.3500 60.9900 60.1700 60.8800 505,400
59.9900 60.3800 59.6100 60.3500 951,100
59.0000 60.0500 58.7500 59.7700 849,100
58.8500 59.0700 58.6800 59.0000 825,500
57.9000 59.0800 57.8900 58.8800 644,200
Weekend
Weekend
58.0000 58.4400 57.7000 57.8200 609,600
2 · 10-Q After market open · 11:44 ET 10-Q ↗
57.1300 57.8400 56.3100 57.7800 1,008,500
1 · 8-K After-hours · 16:51 ET 8-K ↗
56.5500 57.7600 56.4600 57.1100 1,011,900
55.9700 56.5900 55.7900 56.5300 531,400
56.5600 56.8900 55.8700 55.8700 543,900
Weekend
Weekend
56.4300 56.7700 56.2800 56.6700 528,900
56.7800 56.8500 56.2700 56.2900 525,200
58.0100 58.0600 56.5500 56.7800 761,500
57.6100 58.4100 57.5800 57.9900 551,200

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.

23 424B5 424B5 (opens SEC filing in a new tab) Pre-market · 07:55 ET Summarise
22 S-3ASR S-3ASR (opens SEC filing in a new tab) Pre-market · 07:11 ET Summarise
21 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:27 ET Summarise
20 10-Q 10-Q (opens SEC filing in a new tab) After market open · 11:46 ET Summarise
19 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:44 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 30 Apr, 18:32 ET Summarise
17 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
16 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
14 10-K 10-K (opens SEC filing in a new tab) After market open · 12:58 ET Summarise
13 424B3 424B3 (opens SEC filing in a new tab) After-hours · 16:27 ET Summarise
12 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:28 ET Summarise
11 10-Q 10-Q (opens SEC filing in a new tab) After market open · 11:57 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:48 ET Summarise
9 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
8 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
7 424B2 424B2 (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
6 424B5 424B5 (opens SEC filing in a new tab) Pre-market · 08:45 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:17 ET Summarise
4 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
3 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:12 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After market open · 11:44 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:51 ET Summarise