CENTURY ALUM CO

Ticker: CENX CUSIP: 156431108 Class: EQTY

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

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

Q4 2025

Shares 197,843 Value ($000) $7,751 Avg Close $31.24 Range $25.40 - $40.83

Q3 2025

Shares 194,094 Value ($000) $5,699 Avg Close $22.67 Range $17.75 - $30.08

Q2 2025

Shares 981,602 Value ($000) $17,688 Avg Close $16.98 Range $13.05 - $20.43

Q1 2025

Shares 693,752 Value ($000) $12,876 Avg Close $19.21 Range $16.30 - $22.92

Q4 2024

Shares 411,589 Value ($000) $7,499 Avg Close $19.65 Range $14.89 - $25.39

Q3 2024

Shares 409,231 Value ($000) $6,642 Avg Close $15.15 Range $11.40 - $21.37

Q2 2024

Shares 414,760 Value ($000) $6,947 Avg Close $17.02 Range $14.73 - $19.88

Q1 2024

Shares 426,089 Value ($000) $6,558 Avg Close $11.23 Range $9.65 - $15.60

Q4 2023

Shares 169,574 Value ($000) $2,059 Avg Close $7.85 Range $5.70 - $13.17

Q3 2023

Shares 164,510 Value ($000) $1,183 Avg Close $8.06 Range $6.42 - $9.38

Q2 2023

Shares 164,361 Value ($000) $1,433 Avg Close $8.69 Range $7.18 - $10.19

Q1 2023

Shares 167,130 Value ($000) $1,671 Avg Close $10.36 Range $7.87 - $12.97

Q4 2022

Shares 168,521 Value ($000) $1,379 Avg Close $7.55 Range $5.32 - $10.23

Q3 2022

Shares 164,300 Value ($000) $868 Avg Close $7.60 Range $5.27 - $10.21

Q2 2022

Shares 164,300 Value ($000) $1,211 Avg Close $15.54 Range $6.93 - $29.24

Q1 2022

Shares 247,734 Value ($000) $6,518 Avg Close $21.04 Range $14.85 - $30.36

Q4 2021

Shares 28,726 Value ($000) $476 Avg Close $14.64 Range $12.34 - $17.65

Q3 2021

Shares 111,778 Value ($000) $1,503 Avg Close $12.57 Range $10.39 - $15.09

Q4 2020

Shares 19,262 Value ($000) $212 Avg Close $9.07 Range $6.27 - $12.85

Q4 2018

Shares 55,138 Value ($000) $403 Avg Close $9.06 Range $6.54 - $12.25

Q1 2018

Shares 102,876 Value ($000) $1,702 Avg Close $20.90 Range $15.56 - $24.77

Q3 2017

Shares 164,872 Value ($000) $2,733 Avg Close $17.26 Range $12.94 - $20.68

Q2 2017

Shares 120,538 Value ($000) $1,878 Avg Close $13.95 Range $11.59 - $17.28

Q1 2017

Shares 65,110 Value ($000) $826 Avg Close $13.28 Range $8.39 - $16.53

Q1 2015

Shares 28,479 Value ($000) $393 Avg Close $20.13 Range $12.87 - $26.97

Q4 2014

Shares 23,462 Value ($000) $573 Avg Close $25.81 Range $20.79 - $31.75

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	197,843	$7,751	$31.24	$25.40 - $40.83
Q3 2025	194,094	$5,699	$22.67	$17.75 - $30.08
Q2 2025	981,602	$17,688	$16.98	$13.05 - $20.43
Q1 2025	693,752	$12,876	$19.21	$16.30 - $22.92
Q4 2024	411,589	$7,499	$19.65	$14.89 - $25.39
Q3 2024	409,231	$6,642	$15.15	$11.40 - $21.37
Q2 2024	414,760	$6,947	$17.02	$14.73 - $19.88
Q1 2024	426,089	$6,558	$11.23	$9.65 - $15.60
Q4 2023	169,574	$2,059	$7.85	$5.70 - $13.17
Q3 2023	164,510	$1,183	$8.06	$6.42 - $9.38
Q2 2023	164,361	$1,433	$8.69	$7.18 - $10.19
Q1 2023	167,130	$1,671	$10.36	$7.87 - $12.97
Q4 2022	168,521	$1,379	$7.55	$5.32 - $10.23
Q3 2022	164,300	$868	$7.60	$5.27 - $10.21
Q2 2022	164,300	$1,211	$15.54	$6.93 - $29.24
Q1 2022	247,734	$6,518	$21.04	$14.85 - $30.36
Q4 2021	28,726	$476	$14.64	$12.34 - $17.65
Q3 2021	111,778	$1,503	$12.57	$10.39 - $15.09
Q4 2020	19,262	$212	$9.07	$6.27 - $12.85
Q4 2018	55,138	$403	$9.06	$6.54 - $12.25
Q1 2018	102,876	$1,702	$20.90	$15.56 - $24.77
Q3 2017	164,872	$2,733	$17.26	$12.94 - $20.68
Q2 2017	120,538	$1,878	$13.95	$11.59 - $17.28
Q1 2017	65,110	$826	$13.28	$8.39 - $16.53
Q1 2015	28,479	$393	$20.13	$12.87 - $26.97
Q4 2014	23,462	$573	$25.81	$20.79 - $31.75