Ticker · CUSIP 156431108

CENX

CENTURY ALUM CO
Basic Materials·Aluminum
···Share
Holders (tracked)
17
Combined shares
6,011,777
Combined value
$233.52M
Last close
$65.61
Quarter
2025Q4
Tracked holders · last 8 quarters
+5 vs previous quarter over the last 8.
17162024Q12025Q4
Price is +68.9% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

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

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 13F share-delta history. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
T. Rowe Price2016Q1$4.65+1312.4%$3.4M
First Eagle Investment Management2021Q3$7.08+826.6%$19.8M
Ken Fisher (Fisher Asset Mgmt)2018Q2$12.01+446.1%$56.9M
Wellington Management2017Q1$18.92+246.7%$13.0M
AQR Capital Management2016Q3$19.70+233.0%$4.3M
Paul Tudor Jones (Tudor Investment)2016Q1$22.20+195.5%$24.0M
Renaissance Technologies2016Q1$22.65+189.7%$7.7M
Steve Cohen (Point72)2017Q4$32.02+104.9%$702K
Steve Cohen (Point72)2017Q4$32.02+104.9%$702K
Steve Cohen (Point72)2017Q4$32.02+104.9%$702K
Izzy Englander (Millennium Mgmt)2017Q1$32.57+101.5%$984K
Izzy Englander (Millennium Mgmt)2017Q1$32.57+101.5%$984K
Ray Dalio (Bridgewater Associates)2023Q4$33.06+98.5%$17.8M
D.E. Shaw & Co.2016Q1$35.60+84.3%$78.1M
Ken Griffin (Citadel Advisors)2016Q2$37.68+74.1%$9.9M
Ken Griffin (Citadel Advisors)2016Q2$37.68+74.1%$9.9M
Ken Griffin (Citadel Advisors)2016Q2$37.68+74.1%$9.9M

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions3
Added to4
Trimmed5
Exited1

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
15
$21.24B
2022Q2
15
$3.29B
2022Q3
14
$2.4M
2022Q4
14
$122.5M
2023Q1
15
$159.5M
2023Q2
14
$137.2M
2023Q3
14
$122.8M
2023Q4
14
$205.1M
2024Q1
16
$250.5M
2024Q2
17
$256.3M
2024Q3
18
$79.9M
2024Q4
16
$86.7M
2025Q1
13
$104.5M
2025Q2
13
$111.8M
2025Q3
12
$141.6M
2025Q4
17
$233.5M

Who owns CENX

17 super-investors · 2025Q4
Tracked stake
6.01M
shares
Combined value
$234M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New5Added5Trim7
#ManagerSharesValue
1Izzy Englander
Millennium Mgmt
1.42M$56M
2D.E. Shaw & Co.1.19M$47M
3Ken Fisher
Fisher Asset Mgmt
866.9K$34M
4Ken Griffin
Citadel Advisors
697.2K$27M
5Paul Tudor Jones
Tudor Investment
365.9K$14M
6First Eagle Investment Management301.6K$12M
7Ray Dalio
Bridgewater Associates
271.8K$11M
8Wellington Management197.8K$8M
9Steve Cohen
Point72
172.4K$7M
10Ken Griffin
Citadel Advisors
151.2K$6M
11Renaissance Technologies118.0K$5M
12Ken Griffin
Citadel Advisors
103.6K$4M
13AQR Capital Management65.3K$3M
14Izzy Englander
Millennium Mgmt
15.0K$588K
15Steve Cohen
Point72
13.6K$533K
16Steve Cohen
Point72
10.7K$419K
17T. Rowe Price51.7K$2K

Recent moves

20 transactions
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