As of April 17, 2026, the three largest insider holders of CENX are Ag Glencore (TenPercentOwner, 11.70Mn shares), Jesse E Gary (President And Ceo, 277.23K shares), Jarl Berntzen (Director, 208.95K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Ag Glencore | - | 11,701,321 | 0 | 30 Sep, 2022 |
| Jesse E Gary | President And Ceo | 277,227 | 0 | 23 Jan, 2026 |
| Jarl Berntzen | - | 208,951 | 0 | 18 Jun, 2025 |
| Jesse E Gary | President And Ceo | 0 | 142,580 | 17 Mar, 2026 |
| Gunnar Gudlaugsson | Evp Global Operations | 136,393 | 0 | 27 Feb, 2026 |
| Errol Glasser | - | 118,697 | 0 | 18 Jun, 2025 |
| Craig C Conti | Evp Chief Financial Officer | 117,018 | 0 | 01 Mar, 2022 |
| Gerald C Bialek | Chief Financial Officer | 100,620 | 0 | 03 Jan, 2025 |
| John Dezee | Evp, Gc And Secretary | 97,647 | 0 | 25 Feb, 2026 |
| Andrew G Michelmore | - | 89,089 | 0 | 18 Jun, 2025 |
| Michelle Harrison | Sr. Vp Finance Treasurer | 80,947 | 0 | 04 Jan, 2023 |
| Matt Aboud | Svp, Strategy Business Dev'T | 64,843 | 0 | 04 Mar, 2026 |
| Peter A Trpkovski | Evp, Cfo | 64,125 | 0 | 27 Mar, 2026 |
| Robert F Hoffman | Svp, It And Cao | 56,643 | 0 | 13 Mar, 2026 |
| Jennifer Mary Bush | - | 46,872 | 0 | 18 Jun, 2025 |
| Agust F Hafberg | Svp Chief Commercial Officer | 45,059 | 0 | 03 Mar, 2026 |
| Tamla A Olivier | - | 29,673 | 0 | 18 Jun, 2025 |
| Kenneth L Calloway | Svp, Human Resources | 24,902 | 0 | 13 Mar, 2026 |
* 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.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 25 Mar, 2026 | Peter A Trpkovski | Common Stock | D | 16,739 | $50.51 | 64,125 | D | S |
| 16 Mar, 2026 | Jesse E Gary | Common Stock | D | 150,000 | $55.47 | 142,580 | I | S |
| 11 Mar, 2026 | Robert F Hoffman | Common Stock | D | 10,529 | $56.51 | 56,643 | D | S |
| 12 Mar, 2026 | Kenneth L Calloway | Common Stock | D | 18,000 | $58.00 | 24,902 | D | S |
| 04 Mar, 2026 | Robert F Hoffman | Common Stock | D | 10,000 | $56.33 | 67,172 | D | S |
| 02 Mar, 2026 | Matt Aboud | Common Stock | D | 12,126 | $52.50 | 67,814 | D | S |
| 03 Mar, 2026 | Matt Aboud | Common Stock | D | 2,971 | $52.67 | 64,843 | D | S |
| 27 Feb, 2026 | Agust F Hafberg | Common Stock | D | 22,884 | $51.24 | 45,059 | D | S |
| 25 Feb, 2026 | Gunnar Gudlaugsson | Common Stock | D | 43,000 | $54.10 | 136,393 | D | S |
| 23 Feb, 2026 | John Dezee | Common Stock | D | 66,000 | $50.72 | 97,647 | D | S |
| 09 Feb, 2026 | Peter A Trpkovski | Common Stock | D | 4,240 | $54.36 | 80,864 | D | F |
| 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 |
| 23 Jan, 2026 | Jesse E Gary | Common Stock | D | 150,000 | $48.19 | 292,580 | I | S |
| 31 Dec, 2025 | Gunnar Gudlaugsson | Common Stock | A | 82,794 | $0.00 | 226,598 | D | A |
| 31 Dec, 2025 | Jesse E Gary | Common Stock | A | 439,090 | $0.00 | 805,237 | D | A |
| 31 Dec, 2025 | Matt Aboud | Common Stock | A | 36,550 | $0.00 | 99,139 | D | A |
| 31 Dec, 2025 | Peter A Trpkovski | Common Stock | A | 18,260 | $0.00 | 83,751 | D | A |
| 31 Dec, 2025 | Kenneth L Calloway | Common Stock | A | 18,150 | $0.00 | 46,856 | D | A |
| 31 Dec, 2025 | Agust F Hafberg | Common Stock | A | 30,878 | $0.00 | 86,138 | D | A |