ALLETE INC

CUSIP: 018522300 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025
Shares 45,378 Value ($000) $3,013 Avg Close — Range —
Q2 2025
Shares 44,016 Value ($000) $2,820 Avg Close — Range —
Q1 2025
Shares 55,459 Value ($000) $3,644 Avg Close — Range —
Q4 2024
Shares 65,650 Value ($000) $4,254 Avg Close — Range —
Q3 2024
Shares 66,175 Value ($000) $4,248 Avg Close — Range —
Q2 2024
Shares 65,580 Value ($000) $4,089 Avg Close — Range —
Q1 2024
Shares 64,072 Value ($000) $3,821 Avg Close — Range —
Q4 2023
Shares 86,053 Value ($000) $5,263 Avg Close — Range —
Q3 2023
Shares 83,038 Value ($000) $4,384 Avg Close — Range —
Q2 2023
Shares 80,930 Value ($000) $4,692 Avg Close — Range —
Q1 2023
Shares 74,778 Value ($000) $4,813 Avg Close — Range —
Q4 2022
Shares 61,030 Value ($000) $3,937 Avg Close — Range —
Q3 2022
Shares 58,381 Value ($000) $2,922 Avg Close — Range —
Q2 2022
Shares 170,853 Value ($000) $10,043 Avg Close — Range —
Q1 2022
Shares 309,776 Value ($000) $20,748 Avg Close — Range —
Q4 2021
Shares 311,255 Value ($000) $20,652 Avg Close — Range —
Q3 2021
Shares 312,102 Value ($000) $18,577 Avg Close — Range —
Q2 2021
Shares 316,713 Value ($000) $22,163 Avg Close — Range —
Q1 2021
Shares 487,551 Value ($000) $32,759 Avg Close — Range —
Q4 2020
Shares 514,654 Value ($000) $31,878 Avg Close — Range —
Q3 2020
Shares 628,028 Value ($000) $32,494 Avg Close — Range —
Q2 2020
Shares 584,960 Value ($000) $31,944 Avg Close — Range —
Q1 2020
Shares 694,962 Value ($000) $42,171 Avg Close — Range —
Q4 2019
Shares 797,620 Value ($000) $64,743 Avg Close — Range —
Q3 2019
Shares 1,277,893 Value ($000) $111,701 Avg Close — Range —
Q2 2019
Shares 1,023,301 Value ($000) $85,149 Avg Close — Range —
Q1 2019
Shares 746,845 Value ($000) $61,414 Avg Close — Range —
Q4 2018
Shares 811,616 Value ($000) $61,861 Avg Close — Range —
Q3 2018
Shares 721,258 Value ($000) $54,102 Avg Close — Range —
Q2 2018
Shares 687,268 Value ($000) $53,202 Avg Close — Range —
Q1 2018
Shares 691,799 Value ($000) $49,983 Avg Close — Range —
Q4 2017
Shares 456,536 Value ($000) $33,948 Avg Close — Range —
Q3 2017
Shares 433,992 Value ($000) $33,543 Avg Close — Range —
Q2 2017
Shares 439,516 Value ($000) $31,505 Avg Close — Range —
Q1 2017
Shares 240,417 Value ($000) $16,279 Avg Close — Range —
Q4 2016
Shares 237,560 Value ($000) $15,249 Avg Close — Range —
Q3 2016
Shares 210,429 Value ($000) $12,545 Avg Close — Range —
Q2 2016
Shares 209,453 Value ($000) $13,536 Avg Close — Range —
Q1 2016
Shares 228,547 Value ($000) $12,814 Avg Close — Range —
Q4 2015
Shares 252,149 Value ($000) $12,817 Avg Close — Range —
Q3 2015
Shares 309,117 Value ($000) $15,607 Avg Close — Range —
Q2 2015
Shares 321,276 Value ($000) $14,903 Avg Close — Range —
Q1 2015
Shares 306,069 Value ($000) $16,148 Avg Close — Range —
Q4 2014
Shares 325,401 Value ($000) $17,943 Avg Close — Range —
Q3 2014
Shares 334,650 Value ($000) $14,855 Avg Close — Range —
Q2 2014
Shares 347,269 Value ($000) $17,832 Avg Close — Range —
Q1 2014
Shares 339,332 Value ($000) $17,788 Avg Close — Range —
Q4 2013
Shares 346,270 Value ($000) $17,272 Avg Close — Range —
Q3 2013
Shares 351,970 Value ($000) $17,000 Avg Close — Range —
Q2 2013
Shares 360,500 Value ($000) $17,971 Avg Close — Range —