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Latest on record
The most recent facts, as filed.
Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.
- Oct 6, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
- Aug 17, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
- Aug 6, 2026Quarterly report · 10-QFiled by the company itself.Open the filing ↗
In numbers
What this profile holds, counted.
Closes · 1 year250
SEC filings on record2,87213 flagged findings
Reported transactions (Form 4)74since Dec 31, 2022 · and 13 other holdings
Corporate events (8-K)30since Feb 25, 2021
What the record says
Description, identity and filings, each with its source.
Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.
What the company does
Black Hills Corporation is an American diversified energy company that is an electric and gas utility in South Dakota, Montana, Wyoming, Colorado, Arkansas, Kansas, Nebraska, and Iowa. The company sells power throughout the American West. The company is based in Rapid City, South Dakota. It derives its name from its home in the Black Hills of South Dakota.
Source: Wikipedia (CC BY-SA 4.0) · copied on Sep 3, 2026 · may not reflect recent changes.
Regulatory history
Topics detected in its SEC reports, with the original excerpt.
Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.
- 2026-08-17merger or acquisition eventfreshOpen filing ↗“…or the "Company") is filing this Current Report on Form 8-K solely to provide certain information relating to the pending merger…”
+1 more passage from the same document
- “…Current Report on Form 8-K solely to provide certain information relating to the pending merger transaction involving Black Hills…”
- 2026-08-06share offering or dilution eventfreshOpen filing ↗“…Accumulated Other Comprehensive Income (Loss) APSC Arkansas Public Service Commission Arkansas Gas Black Hills Energy Arkansas, Inc.,…”
+1 more passage from the same document
- “…capitalization ratio was 0.48 to 1.00. Debt, as defined under the terms of Wyoming Electric's financing agreements, does not include…”
- 2026-08-06merger or acquisition eventfreshOpen filing ↗“…benefits, and withholdings $ 66.1 $ 92.8 Accrued property taxes 44.0 54.8 Customer deposits and prepayments 60.7 59.0…”
+1 more passage from the same document
- “…$ 66.1 $ 92.8 Accrued property taxes 44.0 54.8 Customer deposits and prepayments 60.7 59.0 Accrued interest 55.7 57.2 Other (none…”
- 2026-05-19share offering or dilution eventrecentOpen filing ↗“…offering price of up to $183,376,179.78, which represents the portion of the $400,000,000.00 originally available for sale…”
+1 more passage from the same document
- “…be offered and sold under the prior prospectus supplement, but will instead be offered and sold under this prospectus supplement and…”
- 2026-05-19merger or acquisition eventrecentOpen filing ↗“…as NorthWestern Energy, provides essential energy infrastructure and valuable services that enrich lives and empower communities…”
- 2026-05-19merger or acquisition eventrecentOpen filing ↗“…an improper personal benefit. We carry directors’ and officers’ liability insurance to insure our directors and officers…”
+1 more passage from the same document
- “…as NorthWestern Energy, provides essential energy infrastructure and valuable services that enrich lives and empower communities…”
Original excerpts from SEC filings, untranslated. Not advice and not a prediction.
The 25 most recent filings (of 2,872)
Every SEC filing, newest first, with what it is. Below, each type with its own explanation.
- Oct 6, 268-K ↗Current report · Communication to the market
- Aug 17, 268-K ↗Current report · Other events
- Aug 7, 26SCHEDULE 13G ↗Passive stake · STATE STREET CORPORATION · 5.0% · event on Jun 30, 26
- Aug 6, 2610-Q ↗Quarterly report
- Aug 5, 268-K ↗Current report · Results
- May 28, 26Form 4 ↗Insider transaction
- May 19, 26424B5 ↗Securities offering
- May 19, 26S-3ASR ↗Securities offering
- May 15, 268-K ↗Current report · Other events
- May 12, 26SCHEDULE 13G ↗Passive stake · STATE STREET CORPORATION · 4.8% · event on Mar 31, 26
- May 7, 2610-Q ↗Quarterly report
- May 6, 268-K ↗Current report · Results
Insider transaction · 9 Form 4 filingsshow all 9hide
- May 4, 26Form 4 ↗Insider transaction
- May 4, 26Form 4 ↗Insider transaction
- May 4, 26Form 4 ↗Insider transaction
- May 4, 26Form 4 ↗Insider transaction
- May 4, 26Form 4 ↗Insider transaction
- May 4, 26Form 4 ↗Insider transaction
- May 4, 26Form 4 ↗Insider transaction
- May 4, 26Form 4 ↗Insider transaction
- May 4, 26Form 4 ↗Insider transaction
- May 1, 268-K ↗Current report · Shareholder vote results
- Apr 29, 26SCHEDULE 13G ↗Passive stake · Vanguard Portfolio Management · 6.7% · event on Mar 31, 26
- Apr 29, 26SCHEDULE 13G ↗Passive stake · Vanguard Capital Management · 5.2% · event on Mar 31, 26
- Apr 2, 268-K ↗Current report · Shareholder vote results · Communication to the market
2,872 filings on record, the oldest from Dec 26, 00.
Listing the 25 most recent filings of the 2,872 on record.
13745
4 material agreements entered2025show all 4hide
- Oct 2, 25Entered a material agreement+3 more in the same filing8-K 1.01 ↗
- Sep 29, 25Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Aug 19, 25Entered a material agreement+4 more in the same filing8-K 1.01 ↗
- May 8, 25Entered a material agreement+1 more in the same filing8-K 1.01 ↗
3 senior executive changes2024 – 2025show all 3hide
- Feb 7, 25A senior executive left or was appointed8-K 5.02 ↗
- Nov 1, 24A senior executive left or was appointed8-K 5.02 ↗
- Aug 12, 24A senior executive left or was appointed8-K 5.02 ↗
- Jun 5, 24Took on a new financial obligation+2 more in the same filing8-K 2.03 ↗
- May 16, 24Entered a material agreement+3 more in the same filing8-K 1.01 ↗
- Apr 25, 24A senior executive left or was appointed8-K 5.02 ↗
- Sep 15, 23Entered a material agreement+3 more in the same filing8-K 1.01 ↗
- Sep 11, 23Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Jun 20, 23A material agreement was terminated+2 more in the same filing8-K 1.02 ↗
- Jun 15, 23A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Mar 7, 23Took on a new financial obligation+3 more in the same filing8-K 2.03 ↗
- Oct 27, 22A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Sep 17, 21A senior executive left or was appointed8-K 5.02 ↗
4 older filings not shown · The record reaches back to Sep 3, 04.
Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.
Schedule 13G: short-form filing
The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.
- BlackRock, Inc.14.6%Mar 31, 25SCHEDULE 13G/A ↗1 earlier filing
- Vanguard Portfolio Management6.7%Mar 31, 26SCHEDULE 13G ↗
- Vanguard Capital Management5.2%Mar 31, 26SCHEDULE 13G ↗
- STATE STREET CORPORATION5.0%Jun 30, 26SCHEDULE 13G ↗1 earlier filing
Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.
Stock compensation, tax and giftsshow the 38 other transactionshide
Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.
- May 1, 26Compensationamount n/aRobert F. Beard↗
- May 1, 26Compensationamount n/aBarry M Granger↗
- May 1, 26Compensationamount n/aTony A Jensen↗
- May 1, 26Compensationamount n/aKathleen S McAllister↗
- May 1, 26Compensationamount n/aSTEVEN RICHARD MILLS↗
- May 1, 26Compensationamount n/aRobert P Otto↗
- May 1, 26Compensationamount n/aScott M Prochazka↗
- May 1, 26Compensationamount n/aTeresa Taylor↗
- May 1, 26Compensationamount n/aAnne G Waleski↗
- Feb 17, 26Giftamount n/aLinden R EvansPresident and CEO↗
- Feb 17, 26Giftamount n/aLinden R EvansPresident and CEO↗
- Feb 12, 26Compensation$662KLinden R EvansPresident and CEO↗
- Feb 12, 26Tax$260KLinden R EvansPresident and CEO↗
- Feb 12, 26Compensation$147KKimberly F NooneySVP & CFO↗
- Feb 12, 26Tax$59KKimberly F NooneySVP & CFO↗
- Feb 12, 26Compensation$61KMarne M JonesSVP - Utilities↗
- Feb 12, 26Tax$24KMarne M JonesSVP - Utilities↗
- Feb 9, 26Tax$18KKimberly F NooneySVP & CFO↗
- Feb 9, 26Tax$27KKimberly F NooneySVP & CFO↗
- Feb 9, 26Tax$7KMarne M JonesSVP - Utilities↗
- Feb 9, 26Tax$20KMarne M JonesSVP - Utilities↗
- Feb 9, 26Tax$77KLinden R EvansPresident and CEO↗
- Feb 9, 26Tax$99KLinden R EvansPresident and CEO↗
- Feb 7, 26Tax$15KSarah WiltseSVP and CHRO↗
- Feb 7, 26Tax$131KKimberly F NooneySVP & CFO↗
- Feb 7, 26Tax$103KMarne M JonesSVP - Utilities↗
- Feb 7, 26Tax$117KLinden R EvansPresident and CEO↗
- Feb 6, 26Compensationamount n/aDonald Lee Redden JRCITO↗
- Feb 6, 26Compensationamount n/aDarren T. NakataChief Legal Officer↗
- Feb 6, 26Compensationamount n/aSarah WiltseSVP and CHRO↗
- Feb 6, 26Compensationamount n/aKimberly F NooneySVP & CFO↗
- Feb 6, 26Compensationamount n/aMarne M JonesSVP - Utilities↗
- Feb 6, 26Compensationamount n/aLinden R EvansPresident and CEO↗
- Dec 1, 25Other$585Linden R EvansPresident and CEO↗
- Nov 7, 25Compensationamount n/aDarren T. NakataChief Legal Officer↗
- Aug 1, 25Compensationamount n/aDonald Lee Redden JRCITO↗
- Jun 1, 25Otheramount n/aAnne G Waleski↗
- Jun 1, 25Otheramount n/aRobert F. Beard↗
The full record holds 247 transactions and goes back to Mar 9, 22.
Its sector and its market
Black Hills Corporation among Utilities companies
The profile shows what is on record. Context and Radar place the company among those of its sector and region.
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- End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
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- 250 clean closes in the period.
- SEC records
- 2,872 documents on file, from Dec 26, 2000 to Oct 6, 2026.
- Company description
- Wikipedia, read on Sep 3, 2026.
- This page
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Which SEC documents appear here?
Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.
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