ALLEGHENY TECHNOLOGIES INC

Ticker: ATI CUSIP: 01741R102 Class: EQTY

Mountaineer Partners Management, LLC's Holding History (CIK: 0001730532)

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

Q4 2025
Shares 128,909 Value ($000) $14,794 Avg Close $97.45 Range $79.29 - $117.48
Q3 2025
Shares 144,020 Value ($000) $11,715 Avg Close $81.04 Range $70.42 - $96.20
Q2 2025
Shares 122,970 Value ($000) $10,617 Avg Close $68.45 Range $39.23 - $87.75
Q1 2025
Shares 181,375 Value ($000) $9,437 Avg Close $56.77 Range $49.07 - $66.80
Q4 2024
Shares 182,670 Value ($000) $10,054 Avg Close $58.97 Range $52.45 - $67.09
Q3 2024
Shares 140,650 Value ($000) $9,411 Avg Close $62.09 Range $53.90 - $68.92
Q2 2024
Shares 209,073 Value ($000) $11,593 Avg Close $56.03 Range $47.90 - $62.44
Q1 2024
Shares 236,396 Value ($000) $12,096 Avg Close $45.22 Range $38.04 - $51.95
Q4 2023
Shares 251,839 Value ($000) $11,451 Avg Close $41.52 Range $35.03 - $46.57
Q3 2023
Shares 249,960 Value ($000) $10,286 Avg Close $44.44 Range $41.04 - $47.92
Q2 2023
Shares 248,829 Value ($000) $11,006 Avg Close $38.25 Range $34.10 - $44.39
Q4 2022
Shares 195,589 Value ($000) $5,840 Avg Close $29.27 Range $25.39 - $31.74
Q3 2022
Shares 210,507 Value ($000) $5,602 Avg Close $27.84 Range $20.52 - $33.31
Q2 2022
Shares 210,507 Value ($000) $4,780 Avg Close $26.35 Range $20.87 - $30.74
Q1 2022
Shares 210,507 Value ($000) $5,650 Avg Close $23.18 Range $16.02 - $28.45
Q4 2021
Shares 659,384 Value ($000) $10,504 Avg Close $16.05 Range $13.85 - $18.33
Q3 2021
Shares 562,282 Value ($000) $9,350 Avg Close $18.91 Range $15.75 - $22.33
Q2 2021
Shares 436,839 Value ($000) $9,108 Avg Close $22.93 Range $20.15 - $25.04
Q1 2021
Shares 437,239 Value ($000) $9,209 Avg Close $19.55 Range $15.97 - $22.87
Q4 2020
Shares 430,142 Value ($000) $7,213 Avg Close $12.70 Range $8.24 - $17.60
Q3 2020
Shares 330,142 Value ($000) $2,879 Avg Close $9.20 Range $8.04 - $11.06
Q2 2020
Shares 330,142 Value ($000) $3,364 Avg Close $8.67 Range $6.21 - $12.60
Q1 2020
Shares 338,433 Value ($000) $2,876 Avg Close $15.97 Range $4.95 - $20.91
Q4 2019
Shares 315,533 Value ($000) $6,519 Avg Close $21.68 Range $18.98 - $24.17
Q3 2019
Shares 365,933 Value ($000) $7,410 Avg Close $21.15 Range $17.03 - $25.66
Q2 2019
Shares 485,933 Value ($000) $12,245 Avg Close $24.37 Range $21.15 - $27.49
Q1 2019
Shares 437,133 Value ($000) $11,177 Avg Close $26.33 Range $21.00 - $29.50
Q4 2018
Shares 471,633 Value ($000) $10,268 Avg Close $25.93 Range $20.84 - $29.84