ALLETE, Inc.
US ˙ NYSE ˙ US0185223007
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityALE / ALLETE, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Sei Investments Co closes position in ALE / ALLETE, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 0 shares of ALLETE, Inc. (US:ALE) valued at $0 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 16,824 shares of ALLETE, Inc.. The current value of the position is $0 USD.

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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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 ALLETE COM NEW 018522300 0 -100.00 0
2025-11-13 2025-09-30 13F ALLETE COM NEW 018522300 16,824 -46,874 -73.59 1,117 -72.63 0.0010
2025-08-14 2025-06-30 13F ALLETE COM NEW 018522300 63,698 9,899 18.40 4,081 15.48 0.0047
2025-05-14 2025-03-31 13F/A-1 ALLETE COM NEW 018522300 53,799 -3,174 -5.57 3,535 -4.25 0.0045
2025-05-13 2025-03-31 13F ALLETE COM NEW 018522300 57,142 169 3,705 0.0040
2025-02-11 2024-12-31 13F ALLETE COM NEW 018522300 56,973 -38,526 -40.34 3,692 -39.79 0.0047
2024-11-12 2024-09-30 13F ALLETE COM NEW 018522300 95,499 -70,214 -42.37 6,130 -40.67 0.0080
2024-08-13 2024-06-30 13F ALLETE COM NEW 018522300 165,713 -142,587 -46.25 10,332 -43.81 0.0146
2024-05-07 2024-03-31 13F ALLETE COM NEW 018522300 308,300 7,981 2.66 18,387 0.11 0.0269
2024-02-14 2023-12-31 13F ALLETE COM NEW 018522300 300,319 -10,531 -3.39 18,368 11.91 0.0295
2023-11-14 2023-09-30 13F ALLETE COM NEW 018522300 310,850 10,314 3.43 16,413 -5.80 0.0295
2023-08-11 2023-06-30 13F ALLETE COM NEW 018522300 300,536 -12,256 -3.92 17,422 -13.47 0.0304
2023-05-12 2023-03-31 13F ALLETE COM NEW 018522300 312,792 92,533 42.01 20,134 41.71 0.0374
2023-02-10 2022-12-31 13F ALLETE COM NEW 018522300 220,259 -6,965 -3.07 14,209 24.93 0.0316
2022-11-14 2022-09-30 13F ALLETE COM NEW 018522300 227,224 4,199 1.88 11,373 -13.25 0.0254
2022-08-15 2022-06-30 13F ALLETE COM NEW 018522300 223,025 49,480 28.51 13,110 12.77 0.0283
2022-05-13 2022-03-31 13F ALLETE COM NEW 018522300 173,545 -1,357 -0.78 11,625 0.15 0.0234
2022-02-14 2021-12-31 13F ALLETE COM NEW 018522300 174,902 -4,758 -2.65 11,608 8.56 0.0218
2021-11-12 2021-09-30 13F ALLETE COM NEW 018522300 179,660 -3,534 -1.93 10,693 -16.59 0.0224
2021-08-06 2021-06-30 13F ALLETE COM NEW 018522300 183,194 2,661 1.47 12,820 5.69 0.0284
2021-05-12 2021-03-31 13F ALLETE COM NEW 018522300 180,533 -10,005 -5.25 12,130 2.78 0.0306
2021-02-08 2020-12-31 13F ALLETE COM NEW 018522300 190,538 1,131 0.60 11,802 20.43 0.0305
2020-12-04 2020-09-30 13F/A-1 ALLETE COM NEW 018522300 189,407 5,478 2.98 9,800 -2.43 0.0284
2020-11-06 2020-09-30 13F ALLETE COM NEW 018522300 189,407 5,478 9,800 23,596.2211
2020-08-17 2020-06-30 13F/A-1 ALLETE COM NEW 018522300 183,929 18,812 11.39 10,044 0.05 0.0312
2020-08-11 2020-06-30 13F ALLETE COM NEW 018522300 178,887 13,770 14,520 39,386.2729
2020-05-14 2020-03-31 13F ALLETE COM NEW 018522300 165,117 -19,125 -10.38 10,039 -32.82 0.0369
2020-02-06 2019-12-31 13F ALLETE COM NEW 018522300 184,242 -6,965 -3.64 14,944 -10.55 0.0446
2019-11-12 2019-09-30 13F ALLETE COM NEW 018522300 191,207 1,825 0.96 16,706 6.02 0.0427
2019-08-14 2019-06-30 13F ALLETE COM NEW 018522300 189,382 17,010 9.87 15,757 11.26 0.0515
2019-05-15 2019-03-31 13F ALLETE COM NEW 018522300 172,372 29,348 20.52 14,162 31.90 0.0476
2019-02-13 2018-12-31 13F ALLETE COM NEW 018522300 143,024 1,332 0.94 10,737 1.07 0.0382
2018-11-08 2018-09-30 13F ALLETE COM NEW 018522300 141,692 -424 -0.30 10,623 -3.44 0.0385
2018-08-03 2018-06-30 13F ALLETE COM NEW 018522300 142,116 137,077 2,720.32 11,001 2,922.25 0.0374
2018-05-11 2018-03-31 13F ALLETE COM NEW 018522300 5,039 -467,628 -98.93 364 -98.11 0.0014
2018-02-08 2017-12-31 13F ALLETE COM NEW 018522300 472,667 378,053 399.57 19,278 166.90 0.0669
2017-11-06 2017-09-30 13F ALLETE COM NEW 018522300 94,614 1,644 1.77 7,223 8.39 0.0257
2017-07-31 2017-06-30 13F ALLETE COM NEW 018522300 92,970 7,184 8.37 6,664 14.74 0.0266
2017-05-05 2017-03-31 13F ALLETE COM NEW 018522300 85,786 10,306 13.65 5,808 19.88 0.0255
2017-02-02 2016-12-31 13F ALLETE COM NEW 018522300 75,480 16,140 27.20 4,845 36.94 0.0235
2016-11-04 2016-09-30 13F ALLETE COM NEW 018522300 59,340 -8,424 -12.43 3,538 -19.22 0.0180
2016-08-11 2016-06-30 13F ALLETE COM NEW 018522300 67,764 -612 -0.90 4,380 14.24 0.0263
2016-05-10 2016-03-31 13F/A-1 ALLETE COM NEW 018522300 68,376 5,756 9.19 3,834 20.45 0.0239
2016-02-03 2015-12-31 13F ALLETE COM NEW 018522300 62,620 58,482 1,413.29 3,183 1,422.97 0.0194
2015-11-02 2015-09-30 13F/A-1 ALLETE COM NEW 018522300 4,138 -500 -10.78 209 -2.79 0.0019
2015-10-30 2015-09-30 13F ALLETE COM NEW 018522300 4,138 209
2015-08-07 2015-06-30 13F/A-1 ALLETE COM NEW 018522300 4,638 -385 -7.66 215 -18.87 0.0019
2015-08-04 2015-06-30 13F ALLETE COM NEW 018522300 4,638 -385 215 0.0019
2015-05-14 2015-03-31 13F/A-1 ALLETE COM NEW 018522300 5,023 -410 -7.55 265 -11.37 0.0023
2015-05-01 2015-03-31 13F ALLETE COM NEW 018522300 5,023 265
2015-02-10 2014-12-31 13F ALLETE COM NEW 018522300 5,433 5,433 299 0.0026
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.