Black Hills Corporation
US ˙ NYSE ˙ US0921131092

SecurityBKH / Black Hills Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership89,361 shares
Latest Disclosed Value $ 6,203,613
Sei Investments Co ownership in BKH / Black Hills Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 89,361 shares of Black Hills Corporation (US:BKH) valued at $6,203,441 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 99,979 shares of Black Hills Corporation. This represents a change in shares of -10.62% during the quarter. The current value of the position is $6,425,056 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (BKH) in the form of stock options.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

BKH / Black Hills Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F BLACK HILLS COM 092113109 89,361 -10,618 -10.62 6,204 0.75 0.0061
2025-11-13 2025-09-30 13F BLACK HILLS COM 092113109 99,979 77,344 341.70 6,158 385.19 0.0066
2025-08-14 2025-06-30 13F BLACK HILLS COM 092113109 22,635 -2,093 -8.46 1,270 -15.34 0.0015
2025-05-14 2025-03-31 13F/A-1 BLACK HILLS COM 092113109 24,728 2,424 10.87 1,500 14.87 0.0019
2025-05-13 2025-03-31 13F BLACK HILLS COM 092113109 22,868 564 1,361 0.0015
2025-02-11 2024-12-31 13F BLACK HILLS COM 092113109 22,304 4,589 25.90 1,305 20.61 0.0017
2024-11-12 2024-09-30 13F BLACK HILLS COM 092113109 17,715 1,711 10.69 1,083 24.37 0.0014
2024-08-13 2024-06-30 13F BLACK HILLS COM 092113109 16,004 1,929 13.71 870 13.28 0.0012
2024-05-07 2024-03-31 13F BLACK HILLS COM 092113109 14,075 51 0.36 769 1.59 0.0011
2024-02-14 2023-12-31 13F BLACK HILLS COM 092113109 14,024 -6,102 -30.32 757 -25.74 0.0012
2023-11-14 2023-09-30 13F BLACK HILLS COM 092113109 20,126 3,145 18.52 1,018 -0.39 0.0018
2023-08-11 2023-06-30 13F BLACK HILLS COM 092113109 16,981 349 2.10 1,023 -2.57 0.0018
2023-05-12 2023-03-31 13F BLACK HILLS COM 092113109 16,632 -13,651 -45.08 1,049 -50.73 0.0019
2023-02-10 2022-12-31 13F BLACK HILLS COM 092113109 30,283 -528 -1.71 2,130 2.01 0.0047
2022-11-14 2022-09-30 13F BLACK HILLS COM 092113109 30,811 1,692 5.81 2,087 -2.66 0.0047
2022-08-15 2022-06-30 13F BLACK HILLS COM 092113109 29,119 -1,444 -4.72 2,144 -9.54 0.0046
2022-05-13 2022-03-31 13F BLACK HILLS COM 092113109 30,563 -19,924 -39.46 2,370 -33.71 0.0048
2022-02-14 2021-12-31 13F BLACK HILLS COM 092113109 50,487 46,684 1,227.56 3,575 1,214.34 0.0067
2021-11-12 2021-09-30 13F BLACK HILLS COM 092113109 3,803 -17,113 -81.82 272 -80.53 0.0006
2021-08-06 2021-06-30 13F BLACK HILLS COM 092113109 20,916 1,237 6.29 1,397 6.89 0.0031
2021-05-12 2021-03-31 13F BLACK HILLS COM 092113109 19,679 -19,002 -49.12 1,307 -45.11 0.0033
2021-02-08 2020-12-31 13F BLACK HILLS COM 092113109 38,681 -97,405 -71.58 2,381 -67.26 0.0062
2020-12-04 2020-09-30 13F/A-1 BLACK HILLS COM 092113109 136,086 -27,290 -16.70 7,273 -21.47 0.0211
2020-11-06 2020-09-30 13F BLACK HILLS COM 092113109 136,579 -26,797 7,299 17,574.3691
2020-08-17 2020-06-30 13F/A-1 BLACK HILLS COM 092113109 163,376 -601 -0.37 9,262 -11.80 0.0287
2020-08-11 2020-06-30 13F BLACK HILLS COM 092113109 167,095 3,118 12,902 34,997.3618
2020-05-14 2020-03-31 13F BLACK HILLS COM 092113109 163,977 -2,600 -1.56 10,501 -19.81 0.0386
2020-02-06 2019-12-31 13F BLACK HILLS COM 092113109 166,577 25,199 17.82 13,095 20.52 0.0391
2019-11-12 2019-09-30 13F BLACK HILLS COM 092113109 141,378 -9,783 -6.47 10,865 -8.18 0.0278
2019-08-14 2019-06-30 13F BLACK HILLS COM 092113109 151,161 11,434 8.18 11,833 14.19 0.0387
2019-05-15 2019-03-31 13F BLACK HILLS COM 092113109 139,727 10,811 8.39 10,363 37.97 0.0348
2019-02-13 2018-12-31 13F BLACK HILLS COM 092113109 128,916 -20,325 -13.62 7,511 -13.33 0.0267
2018-11-08 2018-09-30 13F BLACK HILLS COM 092113109 149,241 15,820 11.86 8,666 6.12 0.0314
2018-08-03 2018-06-30 13F BLACK HILLS COM 092113109 133,421 131,245 6,031.48 8,166 6,820.34 0.0278
2018-05-11 2018-03-31 13F BLACK HILLS COM 092113109 2,176 -122,117 -98.25 118 -98.35 0.0005
2018-02-08 2017-12-31 13F BLACK HILLS COM 092113109 124,293 27,028 27.79 7,151 11.21 0.0248
2017-11-06 2017-09-30 13F BLACK HILLS COM 092113109 97,265 18,298 23.17 6,430 20.71 0.0229
2017-07-31 2017-06-30 13F BLACK HILLS COM 092113109 78,967 15,949 25.31 5,327 27.17 0.0212
2017-05-05 2017-03-31 13F BLACK HILLS COM 092113109 63,018 -657 -1.03 4,189 6.54 0.0184
2017-02-02 2016-12-31 13F BLACK HILLS COM 092113109 63,675 9,582 17.71 3,932 18.72 0.0190
2016-11-04 2016-09-30 13F BLACK HILLS COM 092113109 54,093 19 0.04 3,312 -2.85 0.0168
2016-08-11 2016-06-30 13F BLACK HILLS COM 092113109 54,074 827 1.55 3,409 6.46 0.0204
2016-05-10 2016-03-31 13F/A-1 BLACK HILLS COM 092113109 53,247 -1,291 -2.37 3,202 26.46 0.0199
2016-02-03 2015-12-31 13F BLACK HILLS COM 092113109 54,538 13,489 32.86 2,532 49.20 0.0154
2015-11-02 2015-09-30 13F/A-1 BLACK HILLS COM 092113109 41,049 7,232 21.39 1,697 14.97 0.0156
2015-10-30 2015-09-30 13F BLACK HILLS COM 092113109 41,049 1,697
2015-08-07 2015-06-30 13F/A-1 BLACK HILLS COM 092113109 33,817 962 2.93 1,476 -10.92 0.0133
2015-08-04 2015-06-30 13F BLACK HILLS COM 092113109 33,817 962 1,476 0.0133
2015-05-14 2015-03-31 13F/A-1 BLACK HILLS COM 092113109 32,855 -1,996 -5.73 1,657 -10.38 0.0144
2015-05-01 2015-03-31 13F BLACK DIAMOND PUT 092113109 32,855 32,855 1,657 0.0144
2015-02-10 2014-12-31 13F BLACK HILLS COM 092113109 34,851 34,851 1,849 0.0163
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2015-05-01 2015-03-31 13F BLACK DIAMOND PUT 32,855 1,657 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.