Ken Griffin Century Aluminum CO Transaction History

Citadel Advisors LLC

$550 Billion
Q2 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Century Aluminum CO stock. As of the latest transaction made, Citadel Advisors LLC holds 1,922,657 shares of CENX stock, worth $45.1 Million. This represents 0.01% of its overall portfolio holdings.

Number of Shares

1,922,657

Previous 193,400 894.13%

Holding current value

$45.1 Million

Previous $3.59 Million 865.34%

% of portfolio

0.01%

Previous 0.0%

31 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	SELL	$13.7 - $20.12 $876,608 - $1.29 Million	-63,986 Reduced 3.22%	1,922,657 $34.6 Million
Q1 2025 May 15, 2025	BUY	$16.6 - $21.83 $27.8 Million - $36.5 Million	1,672,610 Added 532.62%	1,986,643 $36.9 Million
Q4 2024 Feb 14, 2025	BUY	$15.24 - $23.94 $4.47 Million - $7.03 Million	293,600 Added 1436.89%	314,033 $5.72 Million
Q3 2024 Nov 14, 2024	SELL	$12.01 - $20.19 $1.51 Million - $2.55 Million	-126,097 Reduced 86.06%	20,433 $331,000
Q2 2024 Aug 14, 2024	BUY	$15.24 - $19.22 $244,784 - $308,711	16,062 Added 12.31%	146,530 $2.45 Million
Q1 2024 May 15, 2024	SELL	$9.97 - $15.39 $11.4 Million - $17.7 Million	-1,147,051 Reduced 89.79%	130,468 $2.01 Million
Q4 2023 Feb 14, 2024	SELL	$5.79 - $12.67 $3.07 Million - $6.73 Million	-531,001 Reduced 29.36%	1,277,519 $15.5 Million
Q3 2023 Nov 14, 2023	BUY	$6.5 - $9.3 $773,968 - $1.11 Million	119,072 Added 7.05%	1,808,520 $13 Million
Q2 2023 Aug 14, 2023	SELL	$7.2 - $10.08 $3.66 Million - $5.12 Million	-508,007 Reduced 23.12%	1,689,448 $14.7 Million
Q1 2023 May 15, 2023	BUY	$8.1 - $12.9 $3.69 Million - $5.88 Million	456,054 Added 26.19%	2,197,455 $22 Million
Q4 2022 Feb 14, 2023	BUY	$5.72 - $9.48 $5.75 Million - $9.52 Million	1,004,401 Added 136.28%	1,741,401 $14.2 Million
Q3 2022 Nov 14, 2022	SELL	$5.28 - $9.88 $1.94 Million - $3.62 Million	-366,614 Reduced 33.22%	737,000 $3.89 Million
Q2 2022 Aug 15, 2022	BUY	$7.11 - $27.55 $5.62 Million - $21.8 Million	790,465 Added 252.42%	1,103,614 $8.13 Million
Q1 2022 May 16, 2022	SELL	$15.34 - $29.49 $10.6 Million - $20.4 Million	-691,925 Reduced 68.84%	313,149 $8.24 Million
Q4 2021 Feb 14, 2022	BUY	$12.87 - $17.41 $7.4 Million - $10 Million	574,907 Added 133.65%	1,005,074 $16.6 Million
Q3 2021 Nov 15, 2021	SELL	$10.58 - $14.9 $17.5 Million - $24.6 Million	-1,653,929 Reduced 79.36%	430,167 $5.79 Million
Q2 2021 Aug 16, 2021	BUY	$11.44 - $17.35 $9.02 Million - $13.7 Million	788,770 Added 60.89%	2,084,096 $26.9 Million
Q1 2021 May 17, 2021	BUY	$9.75 - $19.05 $12.5 Million - $24.4 Million	1,282,920 Added 10341.13%	1,295,326 $22.9 Million
Q4 2020 Feb 16, 2021	SELL	$6.58 - $12.09 $472,483 - $868,134	-71,806 Reduced 85.27%	12,406 $137,000
Q2 2020 Aug 14, 2020	SELL	$3.04 - $7.87 $174,298 - $451,226	-57,335 Reduced 40.51%	84,212 $600,000
Q1 2020 May 15, 2020	SELL	$3.15 - $8.02 $2.59 Million - $6.58 Million	-820,801 Reduced 85.29%	141,547 $512,000
Q4 2019 Feb 14, 2020	BUY	$5.82 - $8.33 $1.67 Million - $2.39 Million	286,744 Added 42.44%	962,348 $7.23 Million
Q3 2019 Nov 14, 2019	SELL	$5.15 - $7.83 $2.31 Million - $3.51 Million	-448,808 Reduced 39.91%	675,604 $4.49 Million
Q2 2019 Aug 14, 2019	BUY	$5.56 - $9.75 $187,460 - $328,731	33,716 Added 3.09%	1,124,412 $7.77 Million
Q1 2019 May 15, 2019	SELL	$7.31 - $9.35 $6.13 Million - $7.85 Million	-839,145 Reduced 43.48%	1,090,696 $0
Q4 2018 Feb 14, 2019	BUY	$6.81 - $12.07 $9.93 Million - $17.6 Million	1,457,482 Added 308.55%	1,929,841 $14.1 Million
Q3 2018 Nov 13, 2018	BUY	$11.09 - $15.46 $3.58 Million - $4.99 Million	323,019 Added 216.3%	472,359 $0
Q2 2018 Aug 10, 2018	SELL	$14.76 - $19.92 $3.67 Million - $4.95 Million	-248,653 Reduced 62.48%	149,340 $0
Q1 2018 May 11, 2018	SELL	$16.2 - $24.34 $8.46 Million - $12.7 Million	-522,398 Reduced 56.76%	397,993 $6.58 Million
Q4 2017 Feb 09, 2018	BUY	$13.1 - $19.86 $8.59 Million - $13 Million	655,908 Added 248.0%	920,391 $18.1 Million
Q3 2017 Nov 09, 2017	BUY	$13.25 - $20.56 $3.5 Million - $5.44 Million	264,483	264,483 $4.39 Million

Others Institutions Holding CENX

# of Institutions

251

Shares Held

55.4M

Call Options Held

3.14M

Put Options Held

1.76M

View Full List

About CENTURY ALUMINUM CO

Ticker CENX
Exchange NASDAQ
Sector Basic Materials
Industry Aluminum
Shares Outstandng 91,358,096
Market Cap $2.14B
Description
Century Aluminum Company, together with its subsidiaries, produces standard-grade and value-added primary aluminum products in the United States and Iceland. It also owns and operates a carbon anode production facility in the Netherlands. The company was incorporated in 1981 and is headquartered in Chicago, Illinois.

More about CENX

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