Key facts
- This page summarizes Robert P. Otto's Form 4 filing for BLACK HILLS CORP /SD/ (BKH).
- 1 reported transaction and 1 derivative row are listed below.
- Accepted by SEC: 28 May 2026, 12:44.
Robert P. Otto - 27 May 2026 Form 4 Insider Report for BLACK HILLS CORP /SD/ (BKH)
- Reporting relationship
- Director
- Issuer ticker
- BKH
- Reported as of
- 27 May 2026
- Net transaction value
- -$304,970
- SEC form
- 4
- Accepted by SEC
- 28 May 2026, 12:44:48 UTC
- Prior SEC filing
- 04 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/Travis Frederickson
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Robert P. Otto filed Form 4 for BLACK HILLS CORP /SD/ (BKH) on 28 May 2026.
Change
- Previous filing in this sequence was filed on 04 May 2026.
- Current net transaction value: -$304,970.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001693863
Primary reporting owner
Otto Robert P
- Relationship
- Director
- Address
- PO BOX 1400, RAPID CITY
- Signature
- /s/Travis Frederickson
- Signature date
- 28 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
BKH
transaction
Common Stock
Sale
- Transaction value
- $304,970
- Shares
- -4,109
- Change %
- -27%
- Price
- $74.22
- Shares after
- 10,886
- Date
- 27 May 2026
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
BKH
holding
Derivative
Phantom Stock Unit
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 9,765
- Date
- 27 May 2026
- Ownership
- By Trust
- Underlying class
- Common Stock
- Underlying amount
- 9,765
- Exercise price
- Footnotes
- F1, F2, F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 3 footnotes
Footnote F1
1 for 1 conversion ratio
Footnote F2
Derivative security is exercisable upon retirement under terms of the agreement.
Footnote F3
Derivative security expires upon retirement under terms of the agreement.