Ticker · CUSIP 156431108

CENX

CENTURY ALUM CO

Basic Materials·Aluminum

···Share

Holders (tracked)

Combined shares

6,011,777

Combined value

$235.54M

Last close

$62.24

Quarter

2025Q4

Price is +58.9% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$62.24+46.65 (+299.23%)H $67.94 · L $15.19 · Avg Vol 2.0M

Tracked holders · last 8 quarters

+5 vs previous quarter over the last 8.

SEC event timeline

23 events

T. Rowe Price added2026-02-17
+2,217 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) trimmed2026-02-17
−808,479 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+989,343 shares · 2025Q4
Position
AQR Capital Management trimmed2026-02-17
−768 shares · 2025Q4
Position
Two Sigma Investments exited2026-02-17
−542,200 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2026-02-17
+975,359 shares · 2025Q4
Position
Steve Cohen (Point72) opened position2026-02-17
+172,408 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+365,857 shares · 2025Q4
Position
Wellington Management added2026-02-17
+3,749 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) opened position2026-02-13
+271,798 shares · 2025Q4
Position
Renaissance Technologies trimmed2026-02-12
−247,100 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
−99,631 shares · 2025Q4
Position
First Eagle Investment Management trimmed2026-02-04
−38,541 shares · 2025Q4
Position
AQR Capital Management added2025-11-14
+11,406 shares · 2025Q3
Position
Two Sigma Investments exited2025-11-14
−81,785 shares · 2025Q3
Position
D.E. Shaw & Co. trimmed2025-11-14
−67,074 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+2,999 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−787,508 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) trimmed2025-11-14
−69,844 shares · 2025Q3
Position
Renaissance Technologies added2025-11-13
+209,500 shares · 2025Q3
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12
−97,010 shares · 2025Q3
Position
Norges Bank (Norway SWF) trimmed2025-11-12
−109,470 shares · 2024Q3
Position
First Eagle Investment Management added2025-11-12
+2,097 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for CENX →

Follow-the-investor returns

If you'd copied each holder of CENX…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
First Eagle Investment Management	2021Q3	$7.91	+686.9%	$18.8M
Ken Fisher (Fisher Asset Mgmt)	2018Q2	$12.01	+418.1%	$54.0M
T. Rowe Price	2016Q1	$13.70	+354.4%	$3.2M
Wellington Management	2017Q1	$18.92	+228.9%	$12.3M
AQR Capital Management	2016Q3	$19.73	+215.5%	$4.1M
Paul Tudor Jones (Tudor Investment)	2016Q1	$22.20	+180.3%	$22.8M
Renaissance Technologies	2016Q1	$24.10	+158.3%	$7.3M
Steve Cohen (Point72)	2017Q4	$32.02	+94.4%	$666K
Steve Cohen (Point72)	2017Q4	$32.02	+94.4%	$666K
Steve Cohen (Point72)	2017Q4	$32.02	+94.4%	$666K
Izzy Englander (Millennium Mgmt)	2017Q1	$32.57	+91.1%	$934K
Izzy Englander (Millennium Mgmt)	2017Q1	$32.57	+91.1%	$934K
Ray Dalio (Bridgewater Associates)	2023Q4	$33.06	+88.3%	$16.9M
D.E. Shaw & Co.	2016Q1	$35.60	+74.8%	$74.1M
Ken Griffin (Citadel Advisors)	2016Q2	$37.68	+65.2%	$9.4M
Ken Griffin (Citadel Advisors)	2016Q2	$37.68	+65.2%	$9.4M
Ken Griffin (Citadel Advisors)	2016Q2	$37.68	+65.2%	$9.4M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions3

Paul Tudor Jones (Tudor Investment)
+365,857
$14.3M
Ray Dalio (Bridgewater Associates)
+271,798
$10.6M
Steve Cohen (Point72)
+172,408
$6.8M

Added to4

D.E. Shaw & Co.
+989,343
$38.8M
Izzy Englander (Millennium Mgmt)
+975,359
$38.2M
Wellington Management
+3,749
$147K
T. Rowe Price
+2,217
$87

Trimmed5

Ken Griffin (Citadel Advisors)
−808,479
$31.7M
Renaissance Technologies
−247,100
$9.7M
Ken Fisher (Fisher Asset Mgmt)
−99,631
$3.9M
First Eagle Investment Management
−38,541
$1.5M
AQR Capital Management
−768
$30K

Exited1

Two Sigma Investments
−542,200
$15.9M

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	15	14,465,236	$21.24B	—
2022Q2	15	16,707,378	$3.29B	—
2022Q3	14	16,389,860	$86.5M	-1
2022Q4	14	18,589,210	$152.1M	—
2023Q1	15	16,708,206	$167.1M	+1
2023Q2	14	16,518,459	$144.0M	-1
2023Q3	14	17,719,324	$127.4M	—
2023Q4	14	17,380,845	$211.0M	—
2024Q1	16	16,631,934	$256.0M	+2
2024Q2	17	15,334,178	$256.8M	+1
2024Q3	18	4,959,389	$80.5M	+1
2024Q4	16	4,794,515	$87.4M	-2
2025Q1	13	5,676,701	$105.4M	-3
2025Q2	13	6,253,145	$112.7M	—
2025Q3	12	4,871,365	$143.0M	-1
2025Q4	17	6,011,777	$235.5M	+5

Who owns CENX

17 super-investors · 2025Q4

Tracked stake

6.01M

Combined value

$236M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New5Added5Trim7

#	Manager	Shares	Value	% of book	Last action
1	Izzy Englander Millennium Mgmt	1.42M	$56M	0.0%	Added+975.4K
2	D.E. Shaw & Co.	1.19M	$47M	0.0%	Added+989.3K
3	Ken Fisher Fisher Asset Mgmt	866.9K	$34M	0.0%	Trim−99.6K
4	Ken Griffin Citadel Advisors	697.2K	$27M	0.0%	Trim−808.5K
5	Paul Tudor Jones Tudor Investment	365.9K	$14M	0.0%	New+365.9K
6	First Eagle Investment Management	301.6K	$12M	0.0%	Trim−38.5K
7	Ray Dalio Bridgewater Associates	271.8K	$11M	0.0%	New+271.8K
8	Wellington Management	197.8K	$8M	0.0%	Added+3.7K
9	Steve Cohen Point72	172.4K	$7M	0.0%	New+172.4K
10	Ken Griffin Citadel Advisors	151.2K	$6M	0.0%	Trim−808.5K
11	Renaissance Technologies	118.0K	$5M	0.0%	Trim−247.1K
12	Ken Griffin Citadel Advisors	103.6K	$4M	0.0%	Trim−808.5K
13	AQR Capital Management	65.3K	$3M	0.0%	Trim−768
14	T. Rowe Price	51.7K	$2M	0.0%	Added+2.2K
15	Izzy Englander Millennium Mgmt	15.0K	$588K	0.0%	Added+975.4K
16	Steve Cohen Point72	13.6K	$533K	0.0%	New+172.4K
17	Steve Cohen Point72	10.7K	$419K	0.0%	New+172.4K

Recent moves

20 transactions

ADDT. Rowe Price
+2,217 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+365,857 · 2025Q4
ADDWellington Management
+3,749 · 2025Q4
TRIMAQR Capital Management
−768 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+975,359 · 2025Q4
ADDD.E. Shaw & Co.
+989,343 · 2025Q4
SOLDTwo Sigma Investments
−542,200 · 2025Q4
NEWSteve Cohen (Point72)
+172,408 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−808,479 · 2025Q4
NEWRay Dalio (Bridgewater Associates)
+271,798 · 2025Q4
TRIMRenaissance Technologies
−247,100 · 2025Q4
TRIMKen Fisher (Fisher Asset Mgmt)
−99,631 · 2025Q4
TRIMFirst Eagle Investment Management
−38,541 · 2025Q4
ADDT. Rowe Price
+2,999 · 2025Q3
TRIMD.E. Shaw & Co.
−67,074 · 2025Q3
TRIMIzzy Englander (Millennium Mgmt)
−69,844 · 2025Q3
TRIMWellington Management
−787,508 · 2025Q3
SOLDTwo Sigma Investments
−81,785 · 2025Q3
ADDAQR Capital Management
+11,406 · 2025Q3
ADDRenaissance Technologies
+209,500 · 2025Q3

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