CENTURY ALUMINUM CO (CENX) - Insider Holders & Insider Ownership

List of insiders holdings for CENTURY ALUMINUM CO:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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#Insider Holder NameReport
Date Time		Shares Owned
Directly
Indirectly		Total
Shares Owned		Filing
1GLENCORE INVESTMENT PTY LTD.
10% Owner		2009-05-04 18:27:5343,619,229
23,547		43,642,776Form 4
2Glencore AG
GLENCORE INTERNATIONAL AG
GLENCORE HOLDING AG
10% Owner		2026-03-04 16:49:5029,690,702
0		29,690,702Form 13D
3Ryfold Ltd
Givolon Ltd
Ryfold Trust
Ocorian Ltd
10% Owner		2022-12-16 06:00:150
27,500,000		27,500,000Form 4
4GLENCORE INTERNATIONAL AG
Glencore AG
Glencore plc
10% Owner		2026-03-04 16:53:1112,184,755
0		12,184,755Form 4
5Gary Jesse E
President and CEO		2026-03-17 17:35:40277,227
142,580		419,807Form 4
6BLESS MICHAEL A
President and CEO		2021-03-05 16:14:34353,989
0		353,989Form 4
7Kruger Logan W
CEO and President		2011-03-24 21:01:20211,148
224.32		211,372Form 4
8Berntzen Jarl
Director		2025-06-18 18:09:41208,951
0		208,951Form 4
9Hoerner John E.
EVP - N. American Operations		2021-01-05 17:23:08198,271
0		198,271Form 4
10Kjos David
VP Maj Proj. Tech. & Sustain		2013-03-26 17:18:37153,222
868.8		154,091Form 4
11Gudlaugsson Gunnar
EVP - Global Operations		2026-02-27 17:07:39136,393
0		136,393Form 4
12GLASSER ERROL
Director		2025-06-18 18:31:31118,697
0		118,697Form 4
13Conti Craig C
EVP & Chief Financial Officer		2022-03-01 16:25:44117,018
0		117,018Form 4
14Hale Wayne
EVP COO		2011-03-24 21:04:04113,564
152.16		113,716Form 4
15Bialek Gerald C
Chief Financial Officer		2025-01-03 17:11:47100,620
0		100,620Form 4
16DeZee John
EVP, GC and Secretary		2026-02-25 18:04:2197,647
0		97,647Form 4
17Michelmore Andrew G
Director		2025-06-18 18:25:3389,089
0		89,089Form 4
18Harrison Michelle
Sr. VP Finance & Treasurer		2023-01-04 17:42:5180,947
352.51		81,300Form 4
19DAVIS CRAIG A
Director		2007-11-30 13:07:0466,457
4,787		71,244Form 4
20Wilkinson Terence
Director		2018-06-20 16:20:0167,660
0		67,660Form 4
21Aboud Matt
SVP, Strategy & Business Dev't		2026-03-04 18:35:1364,843
0		64,843Form 4
22OBRIEN JOHN P
Director		2013-09-26 15:15:1864,259
0		64,259Form 4
23Trpkovski Peter A
EVP, CFO		2026-03-27 17:43:0464,125
0		64,125Form 4
24Hoffman Robert F
SVP, IT and CAO		2026-03-13 17:08:2156,643
14.55		56,658Form 4
25Dillon Ricky T
EVP & Chief Financial Officer		2016-03-24 17:04:5552,253
0		52,253Form 4
26Bush Jennifer Mary
Director		2025-06-18 18:22:1446,872
0		46,872Form 4
27JONES PETER C
Director		2013-09-26 15:24:0046,852
0		46,852Form 4
28Hafberg Agust F
SVP & Chief Commercial Officer		2026-03-03 16:56:3845,059
0		45,059Form 4
29SCHNEIDER STEVE
Sr. VP & Chief Acct. Officer		2013-03-21 20:34:1243,590
0		43,590Form 4
30Leatherberry William J
EVP, Gen. Counsel & Secretary		2013-01-03 15:35:2543,109
187.27		43,296Form 4
31Reed Jerry E
VP, Commercial Mgmt & Bus. Dev		2011-01-04 19:28:3534,208
115.76		34,324Form 4
32BECKLEY DAVID W
Executive VP and CFO		2005-08-04 20:32:4330,706
2,435		33,141Form 4
33Indriani Elisabeth
Principal Accounting Officer		2021-01-05 17:36:2332,099
0		32,099Form 4
34Casello Giulio
Sr. VP of Business Development		2009-03-25 21:12:0730,057
176.22		30,233Form 4
35Olivier Tamla A
Director		2025-06-18 18:28:2329,673
0		29,673Form 4
36KITCHEN GERALD J
Exec. VP, CAO and Secretary		2006-03-09 20:20:0126,326
2,619		28,945Form 4
37Squire Erich K.
Senior Vice President, Finance		2017-01-13 17:00:3426,283
0		26,283Form 3/A
38THOMPSON JACK EDWARD
Director		2010-06-11 13:58:3025,112
0		25,112Form 4
39Calloway Kenneth L
SVP, Human Resources		2026-03-13 17:14:0124,902
0		24,902Form 4
40Manning Catherine Z
Director		2010-06-11 13:48:3023,614
0		23,614Form 4
41GATES E JACK
EVP & COO (Former)		2007-03-21 13:27:1021,768
1,756		23,524Form 4
42FISHMAN ROBERT E
Director		2010-06-11 13:17:3221,612
0		21,612Form 4
43FONTAINE JOHN C
Director		2011-06-10 17:18:1021,427
0		21,427Form 4
44Heyroth Stephen K.
Chief Accounting Officer		2018-03-27 16:39:5220,567
0		20,567Form 4
45Brainerd Theresa L
Global Corporate Controller		2024-09-03 17:02:2619,445
0		19,445Form 3
46Carroll Cynthia B
Director		2020-06-11 16:12:2818,220
0		18,220Form 4
47HAMPSHIRE WILLIAM J
Director		2004-09-03 18:01:5811,325
0		11,325Form 4
48Nielsen Robert R
EVP and Assistant Secretary		2010-03-10 18:49:068,795
176.49		8,971Form 4
49MCGUIRE PETER C
Vice President		2007-09-14 20:25:511,226
0		1,226Form 4
50STROTHOTTE WILLY R
Director		2008-07-22 19:47:551,047
0		1,047Form 4
51KROFCHECK DANIEL J
Vice President and Treasurer		2006-05-11 16:32:350
0		0Form 4
52Glasenberg Ivan
Director		2010-06-11 14:08:240
0		0Form 3
53BNINSKI ROMAN A
Director		2006-03-01 21:25:560
0		0Form 4
54SCHREIBER STUART M
Director		2006-03-01 21:15:150
0		0Form 4
55Goldberg Daniel
Director		2011-02-08 18:42:560
0		0Form 3
56Kalmin Steven
Director		2011-06-10 16:49:240
0		0Form 3
57Caplan Andrew J
Director		2012-03-21 16:35:250
0		0Form 3
58Blumgart Steven
Director		2011-06-15 15:43:020
0		0Form 3