Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

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US · SEC FORM 4

BLACK HILLS CORP /SD/

BKH · NYSE · CIK 0001130464 · Utilities · Utilities—Regulated Gas

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

10 Form 4 transaction lines observed in the same window
1 sales · 9 option, withholding, award, gift or other lines

Last qualifying purchase2020-12-01 · McAllister Kathleen S · $123.7K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Otto Robert PDirector
○▼
Waleski Anne GDirector
○
Taylor TeresaDirector
○
Prochazka Scott MDirector
○
MILLS STEVEN RICHARDDirector
○
McAllister Kathleen SDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 3 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2020-12-01 · McAllister Kathleen S.

Recent Form 4 activity

0Purchases
2Sales
35Other Form 4 lines
22SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER9 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
+7.4%
3M
+2.9%
6M
+0.7%
12M
+23.5%

Volatility & liquidity

Volatility
21.7%
Beta
—
Avg daily value
USD 76.4M

Valuation

Market cap
USD 5.8B
P/E
20.0×

Fundamentals

Profit margin
12.6%
ROE
7.6%
Industry
Utilities—Regulated Gas

Market data

Price data up to: 2026-10-18 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-04 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
11,145,304
Previous report
10,827,316
Avg daily volume
1,221,023
Days to cover
9.1

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2020-12-01McAllister Kathleen SPurchase (P)Common Stock2,000USD 61.86USD 123,720SEC filing ↗
2020-09-15McAllister Kathleen SPurchase (P)Common Stock1,000USD 54.76USD 54,760SEC filing ↗
2020-09-11McAllister Kathleen SPurchase (P)Common Stock1,000USD 53.22USD 53,220SEC filing ↗
2020-08-26MILLS STEVEN RICHARDPurchase (P)Common Stock5,000USD 54.63USD 273,156SEC filing ↗
2020-08-25Kinzley RichardPurchase (P)Common Stock1,000USD 56.22USD 56,220SEC filing ↗
2020-08-06Evans Linden RPurchase (P)Common Stock1,000USD 57.42USD 57,420SEC filing ↗
2020-08-06Evans Linden RPurchase (P)Common Stock1,000USD 57.42USD 57,420SEC filing ↗
2020-05-12Jensen Tony APurchase (P)Common Stock3,421USD 58.43USD 199,889SEC filing ↗
2020-03-12Jensen Tony APurchase (P)Common Stock2,340USD 63.25USD 148,005SEC filing ↗

Form 4 evidence

37 transaction lines in the latest 365-day window; 543 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-27Otto Robert PSale (S)Common Stock4,109USD 74.22USD 304,970SEC filing ↗
2026-05-01Waleski Anne GAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-05-01Taylor TeresaAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-27Otto Robert PSale (S)Common Stock4,109USD 74.22USD 304,970SEC filing ↗
2026-05-01Waleski Anne GAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-05-01Taylor TeresaAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-05-01Prochazka Scott MAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-05-01Otto Robert PAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-05-01McAllister Kathleen SAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-05-01MILLS STEVEN RICHARDAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-05-01Jensen Tony AAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-05-01Granger Barry MAward / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-05-01Beard Robert F.Award / grant (A)Common Stock1,921USD —USD —SEC filing ↗
2026-02-17Evans Linden RGift (G)Common Stock6,311USD —USD —SEC filing ↗
2026-02-12Nooney Kimberly FTax withholding (F)Common Stock806USD 73.21USD 58,994SEC filing ↗
2026-02-12Nooney Kimberly FAward / grant (A)Common Stock2,006USD 73.21USD 146,859SEC filing ↗
2026-02-12Jones Marne MTax withholding (F)Common Stock334USD 73.21USD 24,477SEC filing ↗
2026-02-12Jones Marne MAward / grant (A)Common Stock835USD 73.21USD 61,130SEC filing ↗
2026-02-12Evans Linden RTax withholding (F)Common Stock3,556USD 73.21USD 260,311SEC filing ↗
2026-02-12Evans Linden RAward / grant (A)Common Stock9,036USD 73.21USD 661,526SEC filing ↗
2026-02-09Nooney Kimberly FTax withholding (F)Common Stock627USD 71.48USD 44,847SEC filing ↗
2026-02-09Jones Marne MTax withholding (F)Common Stock380USD 71.48USD 27,171SEC filing ↗
2026-02-09Evans Linden RTax withholding (F)Common Stock2,460USD 71.48USD 175,852SEC filing ↗
2026-02-07Wiltse SarahTax withholding (F)Common Stock201USD 72.30USD 14,534SEC filing ↗
2026-02-07Nooney Kimberly FTax withholding (F)Common Stock1,805USD 72.30USD 130,510SEC filing ↗
2026-02-07Jones Marne MTax withholding (F)Common Stock1,418USD 72.30USD 102,505SEC filing ↗
2026-02-07Evans Linden RTax withholding (F)Common Stock1,625USD 72.30USD 117,469SEC filing ↗
2026-02-06Wiltse SarahAward / grant (A)Common Stock2,327USD 0.00USD 0SEC filing ↗
2026-02-06Redden Donald Lee JRAward / grant (A)Common Stock1,642USD 0.00USD 0SEC filing ↗
2026-02-06Nooney Kimberly FAward / grant (A)Common Stock4,654USD 0.00USD 0SEC filing ↗
2026-02-06Nakata Darren T.Award / grant (A)Common Stock2,874USD 0.00USD 0SEC filing ↗
2026-02-06Jones Marne MAward / grant (A)Common Stock4,106USD 0.00USD 0SEC filing ↗
2026-02-06Evans Linden RAward / grant (A)Common Stock17,793USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerBKH
CIK0001130464
SectorUtilities
IndustryUtilities—Regulated Gas Yahoo Finance
SEC SIC4911 Electric Services
ExchangeNYSE

Data coverage

Local Form 4 history543 transaction lines from 2020-01-02 to 2026-05-27
11 P purchase lines · 22 S sale lines · 510 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.