ALLEGHENY TECHNOLOGIES INC

Ticker: ATI CUSIP: 01741R102 Class: EQTY

MILLENNIUM MANAGEMENT LLC's Holding History (CIK: 0001273087)

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

Q4 2025

Shares 506,881 Value ($000) $58,170 Avg Close $97.45 Range $79.29 - $117.48

Q3 2025

Shares 337,591 Value ($000) $27,460 Avg Close $81.04 Range $70.42 - $96.20

Q2 2025

Shares 288,817 Value ($000) $24,936 Avg Close $68.45 Range $39.23 - $87.75

Q1 2025

Shares 1,366,061 Value ($000) $71,076 Avg Close $56.77 Range $49.07 - $66.80

Q4 2024

Shares 99,937 Value ($000) $5,501 Avg Close $58.97 Range $52.45 - $67.09

Q3 2024

Shares 1,595,016 Value ($000) $106,723 Avg Close $62.09 Range $53.90 - $68.92

Q2 2024

Shares 1,944,919 Value ($000) $107,846 Avg Close $56.03 Range $47.90 - $62.44

Q1 2024

Shares 743,646 Value ($000) $38,052 Avg Close $45.22 Range $38.04 - $51.95

Q4 2023

Shares 267,843 Value ($000) $12,179 Avg Close $41.52 Range $35.03 - $46.57

Q3 2023

Shares 346,886 Value ($000) $14,274 Avg Close $44.44 Range $41.04 - $47.92

Q2 2023

Shares 526,731 Value ($000) $23,297 Avg Close $38.25 Range $34.10 - $44.39

Q1 2023

Shares 438,047 Value ($000) $17 Avg Close $37.76 Range $29.37 - $43.32

Q4 2022

Shares 1,017,725 Value ($000) $30 Avg Close $29.27 Range $25.39 - $31.74

Q3 2022

Shares 1,105,922 Value ($000) $29,429 Avg Close $27.84 Range $20.52 - $33.31

Q2 2022

Shares 3,362,508 Value ($000) $76,363 Avg Close $26.35 Range $20.87 - $30.74

Q1 2022

Shares 1,734,861 Value ($000) $46,564 Avg Close $23.18 Range $16.02 - $28.45

Q4 2021

Shares 1,552,492 Value ($000) $24,731 Avg Close $16.05 Range $13.85 - $18.33

Q3 2021

Shares 1,683,028 Value ($000) $27,989 Avg Close $18.91 Range $15.75 - $22.33

Q2 2021

Shares 558,415 Value ($000) $11,643 Avg Close $22.93 Range $20.15 - $25.04

Q1 2021

Shares 703,707 Value ($000) $14,820 Avg Close $19.55 Range $15.97 - $22.87

Q4 2020

Shares 1,459,480 Value ($000) $24,475 Avg Close $12.70 Range $8.24 - $17.60

Q2 2020

Shares 442,317 Value ($000) $4,507 Avg Close $8.67 Range $6.21 - $12.60

Q1 2020

Shares 428,390 Value ($000) $3,641 Avg Close $15.97 Range $4.95 - $20.91

Q4 2019

Shares 459,545 Value ($000) $9,494 Avg Close $21.68 Range $18.98 - $24.17

Q3 2019

Shares 60,541 Value ($000) $1,225 Avg Close $21.15 Range $17.03 - $25.66

Q2 2019

Shares 1,888,299 Value ($000) $47,585 Avg Close $24.37 Range $21.15 - $27.49

Q1 2019

Shares 40,177 Value ($000) $1,027 Avg Close $26.33 Range $21.00 - $29.50

Q4 2018

Shares 586,660 Value ($000) $12,772 Avg Close $25.93 Range $20.84 - $29.84

Q3 2018

Shares 369,174 Value ($000) $10,909 Avg Close $26.89 Range $24.31 - $30.18

Q2 2018

Shares 2,582,638 Value ($000) $64,876 Avg Close $27.05 Range $22.93 - $29.87

Q1 2018

Shares 3,451,336 Value ($000) $81,728 Avg Close $26.83 Range $22.70 - $30.25

Q4 2017

Shares 3,177,259 Value ($000) $76,699 Avg Close $23.80 Range $21.01 - $26.59

Q3 2017

Shares 2,740,427 Value ($000) $65,496 Avg Close $19.78 Range $16.51 - $24.00

Q2 2017

Shares 2,342,385 Value ($000) $39,844 Avg Close $16.82 Range $14.54 - $20.11

Q1 2017

Shares 1,025,693 Value ($000) $18,421 Avg Close $18.80 Range $15.61 - $23.69

Q4 2016

Shares 40,431 Value ($000) $644 Avg Close $16.62 Range $13.15 - $19.20

Q3 2016

Shares 494,902 Value ($000) $8,943 Avg Close $16.54 Range $12.22 - $18.59

Q2 2016

Shares 1,022,937 Value ($000) $13,042 Avg Close $14.18 Range $10.81 - $17.83

Q1 2016

Shares 80,184 Value ($000) $1,307 Avg Close $12.00 Range $6.97 - $18.17

Q4 2015

Shares 32,998 Value ($000) $371 Avg Close $13.45 Range $9.91 - $18.65

Q3 2015

Shares 899,525 Value ($000) $12,755 Avg Close $20.12 Range $13.34 - $30.02

Q2 2015

Shares 326,957 Value ($000) $9,874 Avg Close $31.90 Range $27.97 - $36.35

Q1 2015

Shares 801,174 Value ($000) $24,043 Avg Close $29.80 Range $25.96 - $33.60

Q4 2014

Shares 782,914 Value ($000) $27,222 Avg Close $31.49 Range $28.73 - $35.21

Q3 2014

Shares 589,422 Value ($000) $21,868 Avg Close $39.92 Range $34.97 - $43.90

Q2 2014

Shares 233,755 Value ($000) $10,542 Avg Close $38.68 Range $35.44 - $42.89

Q4 2013

Shares 12,434 Value ($000) $443 Avg Close $30.74 Range $27.52 - $33.68

Q3 2013

Shares 53,383 Value ($000) $1,629 Avg Close $26.04 Range $23.74 - $30.56

Q2 2013

Shares 21,700 Value ($000) $571 Avg Close $26.04 Range $23.70 - $29.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	506,881	$58,170	$97.45	$79.29 - $117.48
Q3 2025	337,591	$27,460	$81.04	$70.42 - $96.20
Q2 2025	288,817	$24,936	$68.45	$39.23 - $87.75
Q1 2025	1,366,061	$71,076	$56.77	$49.07 - $66.80
Q4 2024	99,937	$5,501	$58.97	$52.45 - $67.09
Q3 2024	1,595,016	$106,723	$62.09	$53.90 - $68.92
Q2 2024	1,944,919	$107,846	$56.03	$47.90 - $62.44
Q1 2024	743,646	$38,052	$45.22	$38.04 - $51.95
Q4 2023	267,843	$12,179	$41.52	$35.03 - $46.57
Q3 2023	346,886	$14,274	$44.44	$41.04 - $47.92
Q2 2023	526,731	$23,297	$38.25	$34.10 - $44.39
Q1 2023	438,047	$17	$37.76	$29.37 - $43.32
Q4 2022	1,017,725	$30	$29.27	$25.39 - $31.74
Q3 2022	1,105,922	$29,429	$27.84	$20.52 - $33.31
Q2 2022	3,362,508	$76,363	$26.35	$20.87 - $30.74
Q1 2022	1,734,861	$46,564	$23.18	$16.02 - $28.45
Q4 2021	1,552,492	$24,731	$16.05	$13.85 - $18.33
Q3 2021	1,683,028	$27,989	$18.91	$15.75 - $22.33
Q2 2021	558,415	$11,643	$22.93	$20.15 - $25.04
Q1 2021	703,707	$14,820	$19.55	$15.97 - $22.87
Q4 2020	1,459,480	$24,475	$12.70	$8.24 - $17.60
Q2 2020	442,317	$4,507	$8.67	$6.21 - $12.60
Q1 2020	428,390	$3,641	$15.97	$4.95 - $20.91
Q4 2019	459,545	$9,494	$21.68	$18.98 - $24.17
Q3 2019	60,541	$1,225	$21.15	$17.03 - $25.66
Q2 2019	1,888,299	$47,585	$24.37	$21.15 - $27.49
Q1 2019	40,177	$1,027	$26.33	$21.00 - $29.50
Q4 2018	586,660	$12,772	$25.93	$20.84 - $29.84
Q3 2018	369,174	$10,909	$26.89	$24.31 - $30.18
Q2 2018	2,582,638	$64,876	$27.05	$22.93 - $29.87
Q1 2018	3,451,336	$81,728	$26.83	$22.70 - $30.25
Q4 2017	3,177,259	$76,699	$23.80	$21.01 - $26.59
Q3 2017	2,740,427	$65,496	$19.78	$16.51 - $24.00
Q2 2017	2,342,385	$39,844	$16.82	$14.54 - $20.11
Q1 2017	1,025,693	$18,421	$18.80	$15.61 - $23.69
Q4 2016	40,431	$644	$16.62	$13.15 - $19.20
Q3 2016	494,902	$8,943	$16.54	$12.22 - $18.59
Q2 2016	1,022,937	$13,042	$14.18	$10.81 - $17.83
Q1 2016	80,184	$1,307	$12.00	$6.97 - $18.17
Q4 2015	32,998	$371	$13.45	$9.91 - $18.65
Q3 2015	899,525	$12,755	$20.12	$13.34 - $30.02
Q2 2015	326,957	$9,874	$31.90	$27.97 - $36.35
Q1 2015	801,174	$24,043	$29.80	$25.96 - $33.60
Q4 2014	782,914	$27,222	$31.49	$28.73 - $35.21
Q3 2014	589,422	$21,868	$39.92	$34.97 - $43.90
Q2 2014	233,755	$10,542	$38.68	$35.44 - $42.89
Q4 2013	12,434	$443	$30.74	$27.52 - $33.68
Q3 2013	53,383	$1,629	$26.04	$23.74 - $30.56
Q2 2013	21,700	$571	$26.04	$23.70 - $29.42