Century Aluminum Co (CENX) Insider Ownership

Historic Insider Ownership Trends

Through the 90-day period concluding February 19, 2026, Century Aluminum's top three insider stakeholders include TenPercentOwner International Ag Glencore (36.01Mn shares), TenPercentOwner Ag Glencore (11.70Mn shares), President And Ceo Jesse E Gary (569.81K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
International Ag Glencore 36,005,947 13 Nov, 2025
Ag Glencore 11,701,321 03 Oct, 2022
Jesse E Gary President And Ceo 569,807 23 Jan, 2026
Jarl Berntzen 208,951 18 Jun, 2025
Gunnar Gudlaugsson Evp Global Operations 179,393 05 Jan, 2026
John Dezee Evp And Gc And Secretary 163,647 05 Jan, 2026
Errol Glasser 118,697 18 Jun, 2025
Craig C Conti Evp & Chief Financial Officer 117,018 01 Mar, 2022
Gerald C Bialek Chief Financial Officer 100,620 03 Jan, 2025
Andrew G Michelmore 89,089 18 Jun, 2025
Michelle Harrison Sr. Vp Finance & Treasurer 80,947 04 Jan, 2023
Peter A Trpkovski Evp And Cfo 80,864 11 Feb, 2026
Matt Aboud Svp And Strategy & Business Dev'T 79,940 05 Jan, 2026
Robert F Hoffman Svp And It And Cao 77,172 05 Jan, 2026
Agust F Hafberg Svp & Chief Commercial Officer 67,943 05 Jan, 2026
Jennifer Mary Bush 46,872 18 Jun, 2025
Kenneth L Calloway Svp And Human Resources 42,902 05 Jan, 2026
Tamla A Olivier 29,673 18 Jun, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
09 Feb, 2026 Peter A Trpkovski Common Stock D 4,240 $54.36 80,864 D F
23 Jan, 2026 Jesse E Gary Common Stock D 150,000 $48.19 292,580 I S
12 Jan, 2026 Jesse E Gary Common Stock D 314,611 $0.00 277,227 D G
12 Jan, 2026 Jesse E Gary Common Stock A 314,611 $0.00 442,580 I G
01 Jan, 2026 Jesse E Gary Common Stock A 57,443 $0.00 591,838 D A
01 Jan, 2026 Robert F Hoffman Common Stock A 5,122 $0.00 77,172 D A
01 Jan, 2026 Gunnar Gudlaugsson Common Stock A 15,624 $0.00 179,393 D A
01 Jan, 2026 John Dezee - - 163,647 D
01 Jan, 2026 John Dezee Common Stock A 9,821 $0.00 163,647 D A
01 Jan, 2026 Matt Aboud Common Stock A 5,529 $0.00 79,940 D A
01 Jan, 2026 Peter A Trpkovski Common Stock A 13,488 $0.00 85,104 D A
01 Jan, 2026 Kenneth L Calloway Common Stock A 5,238 $0.00 42,902 D A
01 Jan, 2026 Agust F Hafberg Common Stock A 5,238 $0.00 67,943 D A
31 Dec, 2025 Jesse E Gary Common Stock D 67,711 $39.18 534,395 D F
31 Dec, 2025 Jesse E Gary Common Stock D 203,131 $39.18 602,106 D F
31 Dec, 2025 Jesse E Gary Common Stock A 439,090 $0.00 805,237 D A
31 Dec, 2025 Robert F Hoffman Common Stock A 31,650 $0.00 90,733 D A
31 Dec, 2025 Robert F Hoffman Common Stock D 6,228 $39.18 72,050 D F
31 Dec, 2025 Robert F Hoffman Common Stock D 12,455 $39.18 78,278 D F
31 Dec, 2025 Gunnar Gudlaugsson Common Stock D 20,943 $39.18 163,769 D F