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United States Metals & Mining

Century Aluminum Co (CENX)

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Over the last 90 days, Century Aluminum Co. has seen significant insider selling, with a net value of -$845,486.89. Notably, the President and CEO, Gary Jesse E., sold shares valued at $8,320,500. This activity occurred following a recent earnings report that missed expectations by 8.43%. The stock has seen a 10.9% increase in the last 90 days.
Stock chart
Ticker: CENX Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Berntzen Jarl
Director
1 sale — total 100,000 USD
Proposed sale 9 Jun 2026
Value US$102,638.41 | Price 419.90 | Shares 65,749
Sale 25 Mar 2026
Value US$447,975.48 | Price 235.28 | Shares 69,917
Proposed sale 25 Mar 2026
Value US$268,997.37 | Price 280.16 | Shares 16,823
Planned sale 16 Mar 2026
Value US$8,320,500.00 | Price 55.47 | Shares 150,000
Sale 12 Mar 2026
Value US$1,044,000.00 | Price 58.00 | Shares 18,000
Proposed sale 12 Mar 2026
Value US$1,055,520.00 | Price 58.64 | Shares 18,000
Sale 11 Mar 2026
Value US$594,993.79 | Price 56.51 | Shares 10,529
Sale 4 Mar 2026
Value US$563,300.00 | Price 56.33 | Shares 10,000
Sale 4 Mar 2026
Value US$326,813,928.75 | Price 51.75 | Shares 6,315,245
Proposed sale 4 Mar 2026
Value US$51.75 | Price 0.00 | Shares 6,315,245
Sale 3 Mar 2026
Value US$156,482.57 | Price 52.67 | Shares 2,971
Sale 2 Mar 2026
Value US$636,615.00 | Price 52.50 | Shares 12,126
Proposed sale 2 Mar 2026
Value US$1,058,475.24 | Price 51.56 | Shares 20,529
Sale 27 Feb 2026
Value US$1,172,576.16 | Price 51.24 | Shares 22,884
Proposed sale 27 Feb 2026
Value US$1,546,985.80 | Price 51.40 | Shares 30,097
Sale 25 Feb 2026
Value US$2,326,300.00 | Price 54.10 | Shares 43,000
Proposed sale 25 Feb 2026
Value US$2,323,720.00 | Price 54.04 | Shares 43,000
Proposed sale 25 Feb 2026
Value US$1,240,083.96 | Price 54.19 | Shares 22,884
Sale 23 Feb 2026
Value US$3,347,520.00 | Price 50.72 | Shares 66,000
Proposed sale 23 Feb 2026
Value US$3,474,240.00 | Price 52.64 | Shares 66,000
Proposed sale 23 Jan 2026
Value US$14,490,000.00 | Price 48.30 | Shares 300,000
Planned sale 23 Jan 2026
Value US$7,228,500.00 | Price 48.19 | Shares 150,000
Sale 10 Nov 2025
Value US$272,250,000.00 | Price 30.25 | Shares 9,000,000
Proposed sale 10 Nov 2025
Value US$297,450,000.00 | Price 33.05 | Shares 9,000,000
Sale 26 Sep 2025
Value US$264,949.63 | Price 27.91 | Shares 9,493
Proposed sale 25 Sep 2025
Value US$249,950.69 | Price 26.33 | Shares 9,493
Sale 19 Sep 2025
Value US$452,375.00 | Price 27.50 | Shares 16,450
Proposed sale 15 Sep 2025
Value US$433,457.50 | Price 26.35 | Shares 16,450
Sale 12 Aug 2025
Value US$279,868.29 | Price 23.27 | Shares 12,027
Proposed sale 12 Aug 2025
Value US$277,102.08 | Price 23.04 | Shares 12,027
Sale 20 Mar 2025
Value US$101,200.00 | Price 20.24 | Shares 5,000
Proposed sale 17 Mar 2025
Value US$245,940.00 | Price 20.50 | Shares 12,000
Sale 14 Mar 2025
Value US$49,975.00 | Price 19.99 | Shares 2,500
Sale 27 Dec 2024
Value US$924,000.00 | Price 18.48 | Shares 50,000
Sale 26 Dec 2024
Value US$554,739.71 | Price 18.97 | Shares 29,243
Proposed sale 26 Dec 2024
Value US$1,506,409.43 | Price 19.01 | Shares 79,243
Sale 5 Dec 2024
Value US$477,000.00 | Price 23.85 | Shares 20,000
Proposed sale 5 Dec 2024
Value US$479,000.00 | Price 23.95 | Shares 20,000
Sale 26 Jun 2024
Value US$972,600.00 | Price 16.21 | Shares 60,000
Proposed sale 26 Jun 2024
Value US$990,000.00 | Price 16.50 | Shares 60,000
Sale 4 Mar 2024
Value US$39,957.26 | Price 10.61 | Shares 3,766
Sale 28 Dec 2023
Value US$171,346.56 | Price 12.32 | Shares 13,908
Sale 27 Dec 2023
Value US$858,841.20 | Price 12.60 | Shares 68,162
Sale 26 Dec 2023
Value US$881,300.00 | Price 12.59 | Shares 70,000
Proposed sale 26 Dec 2023
Value US$1,727,025.00 | Price 12.50 | Shares 138,162
Sale 21 Dec 2023
Value US$108,720.00 | Price 12.08 | Shares 9,000
Sale 20 Dec 2023
Value US$36,000.00 | Price 12.00 | Shares 3,000
Buy 11 May 2023
Value US$130,500.00 | Price 7.25 | Shares 18,000
Sale 15 Aug 2022
Value US$440,312.54 | Price 8.88 | Shares 49,568
Sale 12 Aug 2022
Value US$488,800.00 | Price 9.78 | Shares 50,000
Sale 21 Mar 2022
Value US$422,547.97 | Price 27.64 | Shares 15,287
Sale 4 Mar 2022
Value US$101,581.20 | Price 29.19 | Shares 3,480
Sale 1 Mar 2022
Value US$331,901.88 | Price 25.69 | Shares 12,920
Sale 28 Feb 2022
Value US$378,151.93 | Price 23.22 | Shares 16,284
Sale 3 Mar 2021
Value US$264,300.00 | Price 17.62 | Shares 15,000
Sale 3 Mar 2021
Value US$97,091.02 | Price 17.74 | Shares 5,473
Sale 2 Mar 2021
Value US$164,000.00 | Price 16.40 | Shares 10,000
Sale 2 Mar 2021
Value US$410,000.00 | Price 16.40 | Shares 25,000
Sale 1 Mar 2021
Value US$163,273.20 | Price 14.36 | Shares 11,370
Sale 1 Mar 2021
Value US$108,375.00 | Price 14.45 | Shares 7,500
Sale 25 Feb 2021
Value US$230,882.76 | Price 14.94 | Shares 15,454
Sale 25 Feb 2021
Value US$224,250.00 | Price 14.95 | Shares 15,000
Sale 24 Feb 2021
Value US$228,300.00 | Price 15.22 | Shares 15,000
Sale 24 Feb 2021
Value US$369,750.00 | Price 14.79 | Shares 25,000
Sale 24 Feb 2021
Value US$143,357.43 | Price 15.53 | Shares 9,231
Sale 22 Feb 2021
Value US$179,250.00 | Price 14.34 | Shares 12,500
Sale 17 Dec 2020
Value US$112,700.00 | Price 11.27 | Shares 10,000
Sale 15 Dec 2020
Value US$161,400.00 | Price 10.76 | Shares 15,000
Sale 10 Dec 2020
Value US$295,750.00 | Price 11.83 | Shares 25,000
Sale 10 Dec 2020
Value US$114,270.00 | Price 11.72 | Shares 9,750
Sale 9 Dec 2020
Value US$156,295.57 | Price 11.63 | Shares 13,439
Sale 9 Dec 2020
Value US$118,700.00 | Price 11.87 | Shares 10,000
Sale 24 Aug 2020
Value US$90,900.00 | Price 9.09 | Shares 10,000
Sale 20 Aug 2020
Value US$93,500.00 | Price 9.35 | Shares 10,000
Sale 14 Aug 2020
Value US$116,838.43 | Price 9.97 | Shares 11,719
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-09 2026-06-09 PrS Proposed sale
Berntzen Jarl

Director

Non-Executive Director
65,749
419.90
US$102,638 		65,749 419.90 US$102,638
2026-03-27 2026-03-25 S Sale
0.8
Trpkovski Peter A

EVP, CFO

Officer
69,917 +21.4%
235.28
US$447,975 		69,917 +21.4% 235.28 US$447,975
2026-03-25 2026-03-25 PrS Proposed sale
0.8
Trpkovski Peter A

Officer

Officer
16,823
280.16
US$268,997 		16,823 280.16 US$268,997
2026-03-17 2026-03-16 PlS Planned sale
3.1
Gary Jesse E

President and CEO

Executive Director
150,000 -51.3%
55.47
US$8,320,500 		150,000 -51.3% 55.47 US$8,320,500
2026-03-13 2026-03-12 S Sale
0.9
Calloway Kenneth L

SVP, Human Resources

Officer
18,000 -42.0%
58.00
US$1,044,000 		18,000 -42.0% 58.00 US$1,044,000
2026-03-12 2026-03-12 PrS Proposed sale
0.9
Calloway Kenneth L

Officer

Officer
18,000
58.64
US$1,055,520 		18,000 58.64 US$1,055,520
2026-03-13 2026-03-11 S Sale
2.3
Hoffman Robert F

SVP, IT and CAO

Officer
10,529 -15.7%
56.51
US$594,994 		10,529 -15.7% 56.51 US$594,994
2026-03-06 2026-03-04 S Sale
2.3
Hoffman Robert F

SVP, IT and CAO

Officer
10,000 -13.0%
56.33
US$563,300 		10,000 -13.0% 56.33 US$563,300
2026-03-04 2026-03-04 S Sale
0.8
GLENCORE INTERNATIONAL AG
Large shareholder
6,315,245 -34.1%
51.75
US$326,813,929 		6,315,245 -34.1% 51.75 US$326,813,929
2026-03-04 2026-03-04 PrS Proposed sale
0.8
Glencore International AG

10% Stockholder

Large shareholder
6,315,245
0.00
US$52 		6,315,245 0.00 US$52
2026-03-04 2026-03-03 S Sale
2.8
Aboud Matt

SVP, Strategy & Business Dev't

Officer
2,971 -4.4%
52.67
US$156,483 		2,971 -4.4% 52.67 US$156,483
2026-03-04 2026-03-02 S Sale
2.8
Aboud Matt

SVP, Strategy & Business Dev't

Officer
12,126 -15.2%
52.50
US$636,615 		12,126 -15.2% 52.50 US$636,615
2026-03-02 2026-03-02 PrS Proposed sale
2.3
Hoffman Robert F

Officer

Officer
20,529
51.56
US$1,058,475 		20,529 51.56 US$1,058,475
2026-03-03 2026-02-27 S Sale
0.9
Hafberg Agust F

SVP & Chief Commercial Officer

Officer
22,884 -33.7%
51.24
US$1,172,576 		22,884 -33.7% 51.24 US$1,172,576
2026-02-27 2026-02-27 PrS Proposed sale
2.8
Aboud Matt

Officer

Officer
30,097
51.40
US$1,546,986 		30,097 51.40 US$1,546,986
2026-02-27 2026-02-25 S Sale
3.2
Gudlaugsson Gunnar

EVP - Global Operations

Officer
43,000 -24.0%
54.10
US$2,326,300 		43,000 -24.0% 54.10 US$2,326,300
2026-02-25 2026-02-25 PrS Proposed sale
0.9
Hafberg Agust F

Officer

Officer
22,884
54.19
US$1,240,084 		22,884 54.19 US$1,240,084
2026-02-25 2026-02-25 PrS Proposed sale
3.2
Gudlaugsson Gunnar

Officer

Officer
43,000
54.04
US$2,323,720 		43,000 54.04 US$2,323,720
2026-02-25 2026-02-23 S Sale
2.7
DeZee John

EVP, GC and Secretary

Officer
66,000 -40.3%
50.72
US$3,347,520 		66,000 -40.3% 50.72 US$3,347,520
2026-02-23 2026-02-23 PrS Proposed sale
2.7
DeZee John

Officer

Officer
66,000
52.64
US$3,474,240 		66,000 52.64 US$3,474,240
2026-01-23 2026-01-23 PrS Proposed sale
3.1
Jesse E. Gary

President, CEO, Director

Non-Executive Director
300,000
48.30
US$14,490,000 		300,000 48.30 US$14,490,000
2026-01-23 2026-01-23 PlS Planned sale
3.1
Gary Jesse E

President and CEO

Executive Director
150,000 -33.9%
48.19
US$7,228,500 		150,000 -33.9% 48.19 US$7,228,500
2025-11-13 2025-11-10 S Sale
0.8
GLENCORE INTERNATIONAL AG
Large shareholder
9,000,000 -32.7%
30.25
US$272,250,000 		9,000,000 -32.7% 30.25 US$272,250,000
2025-11-12 2025-11-10 PrS Proposed sale
0.8
Glencore International AG

10% Stockholder

Large shareholder
9,000,000
33.05
US$297,450,000 		9,000,000 33.05 US$297,450,000
2025-09-30 2025-09-26 S Sale
0.9
Hafberg Agust F

SVP & Chief Commercial Officer

Officer
9,493 -14.7%
27.91
US$264,950 		9,493 -14.7% 27.91 US$264,950
2025-09-25 2025-09-25 PrS Proposed sale
0.9
Hafberg Agust F

Officer

Officer
9,493
26.33
US$249,951 		9,493 26.33 US$249,951
2025-09-23 2025-09-19 S Sale
0.9
Calloway Kenneth L

SVP, Human Resources

Officer
16,450 -36.4%
27.50
US$452,375 		16,450 -36.4% 27.50 US$452,375
2025-09-15 2025-09-15 PrS Proposed sale
0.9
Calloway Kenneth L

Officer

Officer
16,450
26.35
US$433,458 		16,450 26.35 US$433,458
2025-08-14 2025-08-12 S Sale
2.8
Aboud Matt

SVP, Strategy & Business Dev't

Officer
12,027 -16.1%
23.27
US$279,868 		12,027 -16.1% 23.27 US$279,868
2025-08-12 2025-08-12 PrS Proposed sale
2.8
Aboud Matt

Officer

Officer
12,027
23.04
US$277,102 		12,027 23.04 US$277,102
2025-03-24 2025-03-20 S Sale
2.3
Hoffman Robert F

SVP, IT and CAO

Officer
5,000 -7.8%
20.24
US$101,200 		5,000 -7.8% 20.24 US$101,200
2025-03-17 2025-03-17 PrS Proposed sale
2.3
Hoffman Robert F

Officer

Officer
12,000
20.50
US$245,940 		12,000 20.50 US$245,940
2025-03-18 2025-03-14 S Sale
2.3
Hoffman Robert F

SVP, IT and CAO

Officer
2,500 -3.8%
19.99
US$49,975 		2,500 -3.8% 19.99 US$49,975
2024-12-30 2024-12-27 S Sale
3.1
Gary Jesse E

President and CEO

Executive Director
50,000 -98.5%
18.48
US$924,000 		50,000 -98.5% 18.48 US$924,000
2024-12-30 2024-12-26 S Sale
3.1
Gary Jesse E

President and CEO

Executive Director
29,243 -36.6%
18.97
US$554,740 		29,243 -36.6% 18.97 US$554,740
2024-12-26 2024-12-26 PrS Proposed sale
3.1
Jesse E. Gary

Affiliate
79,243
19.01
US$1,506,409 		79,243 19.01 US$1,506,409
2024-12-09 2024-12-05 S Sale
3.2
Gudlaugsson Gunnar

EVP - Global Operations

Officer
20,000 -15.6%
23.85
US$477,000 		20,000 -15.6% 23.85 US$477,000
2024-12-05 2024-12-05 PrS Proposed sale
3.2
Gudlaugsson Gunnar

Officer

Officer
20,000
23.95
US$479,000 		20,000 23.95 US$479,000
2024-06-28 2024-06-26 S Sale
3.1
Gary Jesse E

President and CEO

Executive Director
60,000 -49.0%
16.21
US$972,600 		60,000 -49.0% 16.21 US$972,600
2024-06-26 2024-06-26 PrS Proposed sale
3.1
Jesse E. Gary

Affiliate
60,000
16.50
US$990,000 		60,000 16.50 US$990,000
2024-03-06 2024-03-04 S Sale
2.8
Aboud Matt

SVP, Strategy & Business Dev't

Officer
3,766 -6.0%
10.61
US$39,957 		3,766 -6.0% 10.61 US$39,957
2024-01-02 2023-12-28 S Sale
0.8
Trpkovski Peter A

SVP, Finance and Treasurer

Officer
13,908 -24.9%
12.32
US$171,347 		13,908 -24.9% 12.32 US$171,347
2023-12-28 2023-12-27 S Sale
3.1
Gary Jesse E

President and CEO

Executive Director
68,162 -47.1%
12.60
US$858,841 		68,162 -47.1% 12.60 US$858,841
2023-12-28 2023-12-26 S Sale
3.1
Gary Jesse E

President and CEO

Executive Director
70,000 -32.6%
12.59
US$881,300 		70,000 -32.6% 12.59 US$881,300
2023-12-26 2023-12-26 PrS Proposed sale
3.1
Jesse E. Gary

Affiliate
138,162
12.50
US$1,727,025 		138,162 12.50 US$1,727,025
2023-12-22 2023-12-21 S Sale
2.3
Hoffman Robert F

VP, IT and CAO

Officer
9,000 -18.9%
12.08
US$108,720 		9,000 -18.9% 12.08 US$108,720
2023-12-22 2023-12-20 S Sale
2.3
Hoffman Robert F

VP, IT and CAO

Officer
3,000 -5.9%
12.00
US$36,000 		3,000 -5.9% 12.00 US$36,000
2023-05-15 2023-05-11 B Purchase
2.8
Aboud Matt

SVP, Strategy & Business Dev't

Officer
18,000 +62.8%
7.25
US$130,500 		18,000 +62.8% 7.25 US$130,500
2022-08-16 2022-08-15 S Sale
3.1
Gary Jesse E

President and CEO

Executive Director
49,568 -43.5%
8.88
US$440,313 		49,568 -43.5% 8.88 US$440,313
2022-08-16 2022-08-12 S Sale
3.1
Gary Jesse E

President and CEO

Executive Director
50,000 -30.5%
9.78
US$488,800 		50,000 -30.5% 9.78 US$488,800
2022-03-22 2022-03-21 S Sale
2.7
DeZee John

EVP and General Counsel

Officer
15,287 -25.2%
27.64
US$422,548 		15,287 -25.2% 27.64 US$422,548
2022-03-08 2022-03-04 S Sale
2.3
Hoffman Robert F

See Remarks

Officer
3,480 -9.7%
29.19
US$101,581 		3,480 -9.7% 29.19 US$101,581
2022-03-01 2022-03-01 S Sale
2.7
Conti Craig C

EVP & Chief Financial Officer

Officer
12,920 -9.9%
25.69
US$331,902 		12,920 -9.9% 25.69 US$331,902
2022-03-01 2022-02-28 S Sale
3.2
Harrison Michelle

Sr. VP Finance & Treasurer

Officer
16,284 -19.8%
23.22
US$378,152 		16,284 -19.8% 23.22 US$378,152
2021-03-05 2021-03-03 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
15,000 -4.1%
17.62
US$264,300 		15,000 -4.1% 17.62 US$264,300
2021-03-05 2021-03-03 S Sale
3.2
Gudlaugsson Gunnar

EVP - Global Operations

Officer
5,473 -16.8%
17.74
US$97,091 		5,473 -16.8% 17.74 US$97,091
2021-03-03 2021-03-02 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
10,000 -2.6%
16.40
US$164,000 		10,000 -2.6% 16.40 US$164,000
2021-03-03 2021-03-02 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
25,000 -6.2%
16.40
US$410,000 		25,000 -6.2% 16.40 US$410,000
2021-03-03 2021-03-01 S Sale
3.1
Gary Jesse E

EVP, COO, GC & Secretary

Officer
11,370 -15.0%
14.36
US$163,273 		11,370 -15.0% 14.36 US$163,273
2021-03-03 2021-03-01 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
7,500 -1.8%
14.45
US$108,375 		7,500 -1.8% 14.45 US$108,375
2021-02-26 2021-02-25 S Sale
3.1
Gary Jesse E

EVP, COO & GC

Officer
15,454 -16.9%
14.94
US$230,883 		15,454 -16.9% 14.94 US$230,883
2021-02-26 2021-02-25 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
15,000 -3.5%
14.95
US$224,250 		15,000 -3.5% 14.95 US$224,250
2021-02-26 2021-02-24 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
15,000 -3.4%
15.22
US$228,300 		15,000 -3.4% 15.22 US$228,300
2021-02-26 2021-02-24 S Sale
3.2
Harrison Michelle

Sr. VP Finance & Treasurer

Officer
9,231 -11.3%
15.53
US$143,357 		9,231 -11.3% 15.53 US$143,357
2021-02-26 2021-02-24 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
25,000 -5.4%
14.79
US$369,750 		25,000 -5.4% 14.79 US$369,750
2021-02-24 2021-02-22 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
12,500 -2.6%
14.34
US$179,250 		12,500 -2.6% 14.34 US$179,250
2020-12-18 2020-12-17 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
10,000 -2.9%
11.27
US$112,700 		10,000 -2.9% 11.27 US$112,700
2020-12-17 2020-12-15 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
15,000 -4.2%
10.76
US$161,400 		15,000 -4.2% 10.76 US$161,400
2020-12-11 2020-12-10 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
25,000 -6.5%
11.83
US$295,750 		25,000 -6.5% 11.83 US$295,750
2020-12-11 2020-12-10 S Sale
3.1
Gary Jesse E

EVP, COO & GC

Officer
9,750 -16.9%
11.72
US$114,270 		9,750 -16.9% 11.72 US$114,270
2020-12-11 2020-12-09 S Sale
2.8
BLESS MICHAEL A

President and CEO

Executive Director
13,439 -3.4%
11.63
US$156,296 		13,439 -3.4% 11.63 US$156,296
2020-12-11 2020-12-09 S Sale
2.4
Hoerner John E.

EVP - N. American Operations

Officer
10,000 -5.8%
11.87
US$118,700 		10,000 -5.8% 11.87 US$118,700
2020-08-26 2020-08-24 S Sale
2.4
Hoerner John E.

EVP - N. American Operations

Officer
10,000 -5.5%
9.09
US$90,900 		10,000 -5.5% 9.09 US$90,900
2020-08-24 2020-08-20 S Sale
2.4
Hoerner John E.

EVP - N. American Operations

Officer
10,000 -5.2%
9.35
US$93,500 		10,000 -5.2% 9.35 US$93,500
2020-08-14 2020-08-14 S Sale
2.4
Hoerner John E.

EVP - N. American Operations

Officer
11,719 -5.7%
9.97
US$116,838 		11,719 -5.7% 9.97 US$116,838
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