Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| CENTURY ALUMINUM COCENX · Entity 3947 | SVP, IT and CAO | March 11, 2026 | March 13, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
CENTURY ALUMINUM CO
Report date March 11, 2026 · Filed March 13, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 56,643 |
Reported balance
After 2026-03-11 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 1 · 2026-03-11 · Sale · Disposed 10,529 · Balance 56,643 F1: The price reported above reflects the weighted average sale price for the shares which were sold in multiple transactions at prices ranging from $56.25 to $56.75, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the specific number of shares and prices at which the transactions were effected. F2: Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans. |
| Common StockSEC Table I · non-derivative | IndirectBy 401(k) plan | 14.5476 |
Reported balance
Holding disclosure · report date 2026-03-11 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 14.5476 F3: As reported by 401(k) plan trustee on March 11, 2026. |
Filing footnotes · ownership attribution and instrument terms
F1: The price reported above reflects the weighted average sale price for the shares which were sold in multiple transactions at prices ranging from $56.25 to $56.75, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the specific number of shares and prices at which the transactions were effected.
F2: Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.
F3: As reported by 401(k) plan trustee on March 11, 2026.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| March 11, 2026 Filed Mar 13, 2026 21:08 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | SaleCommon Stock | 10,529 | $56.51 | $594,993.79 |
DisclosureSEC source: 0001628280-26-017769 · wk-form4_1773436098.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56,643 F1 · price: The price reported above reflects the weighted average sale price for the shares which were sold in multiple transactions at prices ranging from $56.25 to $56.75, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the specific number of shares and prices at which the transactions were effected. F2 · balance_after: Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans. Read SEC document |
| March 04, 2026 Filed Mar 6, 2026 22:58 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | SaleCommon Stock | 10,000 | $56.33 | $563,300.00 |
DisclosureSEC source: 0001628280-26-015724 · wk-form4_1772837922.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 67,172 F1 · price: The price reported above reflects the weighted average sale price for the shares which were sold in multiple transactions at prices ranging from $56.15 to $56.50, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the specific number of shares and prices at which the transactions were effected. F2 · balance_after: Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans. Read SEC document |
| January 01, 2026 Filed Jan 5, 2026 21:51 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 5,122 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-000548 · wk-form4_1767649896.xml · nonDerivative · entry 4 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 77,172 F4 · shares: Represents RSUs granted to the Reporting Person in connection with the Issuer's 2026-2028 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2028, subject to the Plan's terms and conditions. F5 · balance_after: Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans. Read SEC document |
| December 31, 2025 Filed Jan 5, 2026 21:51 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 6,228 | $39.18 | $244,013.04 |
DisclosureSEC source: 0001628280-26-000548 · wk-form4_1767649896.xml · nonDerivative · entry 3 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 72,050 F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of RSUs previously granted to the Reporting Person on January 1, 2023. Read SEC document |
| December 31, 2025 Filed Jan 5, 2026 21:51 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 12,455 | $39.18 | $487,986.90 |
DisclosureSEC source: 0001628280-26-000548 · wk-form4_1767649896.xml · nonDerivative · entry 2 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 78,278 F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person. Read SEC document |
| December 31, 2025 Filed Jan 5, 2026 21:51 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 31,650 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-000548 · wk-form4_1767649896.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 90,733 F1 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of PSUs granted in connection with the Issuer's 2023-2025 Long-Term Incentive Plan under Rule 16b-3(d). Read SEC document |
| March 20, 2025 Filed Mar 24, 2025 21:29 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | SaleCommon Stock | 5,000 | $20.24 | $101,200.00 |
DisclosureSEC source: 0000949157-25-000030 · wk-form4_1742851746.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 59,083 F1 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans. Read SEC document |
| March 14, 2025 Filed Mar 18, 2025 22:10 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | SaleCommon Stock | 2,500 | $19.99 | $49,975.00 |
DisclosureSEC source: 0000949157-25-000028 · wk-form4_1742335816.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 64,083 F1 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans. Read SEC document |
| January 01, 2025 Filed Jan 3, 2025 22:43 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 8,257 | $0.00 | $0.00 |
DisclosureSEC source: 0000949157-25-000018 · wk-form4_1735944230.xml · nonDerivative · entry 4 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 66,583 F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2025-2027 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2027, subject to the Plan's terms and conditions. F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans. Read SEC document |
| December 31, 2024 Filed Jan 3, 2025 22:43 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 1,852 | $18.22 | $33,743.44 |
DisclosureSEC source: 0000949157-25-000018 · wk-form4_1735944230.xml · nonDerivative · entry 3 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 58,326 F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of TVSUs previously granted to the Reporting Person on January 1, 2022. Read SEC document |
| December 31, 2024 Filed Jan 3, 2025 22:43 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 5,401 | $18.22 | $98,406.22 |
DisclosureSEC source: 0000949157-25-000018 · wk-form4_1735944230.xml · nonDerivative · entry 2 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,178 F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person. Read SEC document |
| December 31, 2024 Filed Jan 3, 2025 22:43 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 13,723 | $0.00 | $0.00 |
DisclosureSEC source: 0000949157-25-000018 · wk-form4_1735944230.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · SVP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 65,579 F1 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of PSUs granted in connection with the Issuer's 2022-2024 Long-Term Incentive Plan under Rule 16b-3(d). Read SEC document |
| January 01, 2024 Filed Jan 3, 2024 22:05 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 14,472 | $0.00 | $0.00 |
DisclosureSEC source: 0000949157-24-000008 · wk-form4_1704319490.xml · nonDerivative · entry 4 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,856 F4 · shares: Represents TVSUs granted to the Reporting Person in connection with the Issuer's 2024-2026 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2026, subject to the Plan's terms and conditions. F5 · balance_after: Includes unvested TVSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans. Read SEC document |
| December 31, 2023 Filed Jan 3, 2024 22:05 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 2,519 | $12.14 | $30,580.66 |
DisclosureSEC source: 0000949157-24-000008 · wk-form4_1704319490.xml · nonDerivative · entry 3 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 37,384 F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of TVSUs previously granted to the Reporting Person on January 2, 2021. Read SEC document |
| December 31, 2023 Filed Jan 3, 2024 22:05 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 1,075 | $12.14 | $13,050.50 |
DisclosureSEC source: 0000949157-24-000008 · wk-form4_1704319490.xml · nonDerivative · entry 2 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 39,903 F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person. Read SEC document |
| December 31, 2023 Filed Jan 3, 2024 22:05 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 2,425 | $0.00 | $0.00 |
DisclosureSEC source: 0000949157-24-000008 · wk-form4_1704319490.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 40,978 F1 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of PSUs granted in connection with the Issuer's 2021-2023 Long-Term Incentive Plan under Rule 16b-3(d). Read SEC document |
| December 21, 2023 Filed Dec 23, 2023 00:55 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | SaleCommon Stock | 9,000 | $12.08 | $108,720.00 |
DisclosureSEC source: 0000949157-23-000076 · wk-form4_1703292932.xml · nonDerivative · entry 2 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 38,553 F2 · price: The price reported above reflects the weighted average sale price for the shares, which were sold in multiple transactions at prices ranging $11.95 to $12.25, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the specific number of shares and prices at which the transactions were effected. F3 · balance_after: Includes unvested RSUs granted to the Reporting Person pursuant to the Issuer's 2021-2023, 2022-2024 and 2023-2025 Long-Term Incentive Plans under Rule 16b-3(d). Read SEC document |
| December 20, 2023 Filed Dec 23, 2023 00:55 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | SaleCommon Stock | 3,000 | $12.00 | $36,000.00 |
DisclosureSEC source: 0000949157-23-000076 · wk-form4_1703292932.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 47,553 F1 · price: The price reported above reflects the weighted average sale price for the shares, which were sold in multiple transactions at prices ranging $11.97 to $12.10, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the specific number of shares and prices at which the transactions were effected. Read SEC document |
| January 01, 2023 Filed Jan 4, 2023 22:36 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 15,825 | $0.00 | $0.00 |
DisclosureSEC source: 0000949157-23-000013 · wf-form4_167287175101232.xml · nonDerivative · entry 4 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 50,553 F4 · shares: Represents RSUs granted to the Reporting Person in connection with the Issuer's 2023-2025 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest on December 31, 2025, subject to the Plan's terms and conditions. F5 · balance_after: Includes unvested RSUs granted to the Reporting Person pursuant to Issuer's 2021-2023, 2022-2024 and 2023-2025 Long-Term Incentive Plans under Rule 16b-3(d). Read SEC document |
| December 30, 2022 Filed Jan 4, 2023 22:36 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 3,745 | $8.18 | $30,634.10 |
DisclosureSEC source: 0000949157-23-000013 · wf-form4_167287175101232.xml · nonDerivative · entry 3 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 34,728 F3 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of Restricted Stock Units (RSUs) previously granted to the Reporting Person on January 2, 2020. Read SEC document |
| December 30, 2022 Filed Jan 4, 2023 22:36 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 4,846 | $8.18 | $39,640.28 |
DisclosureSEC source: 0000949157-23-000013 · wf-form4_167287175101232.xml · nonDerivative · entry 2 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 38,473 F2 · shares: Shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of PSUs granted to the Reporting Person. Read SEC document |
| December 30, 2022 Filed Jan 4, 2023 22:36 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 10,939 | $0.00 | $0.00 |
DisclosureSEC source: 0000949157-23-000013 · wf-form4_167287175101232.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · VP, IT and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 43,319 F1 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of Performance Share Units (PSUs) granted in connection with the Issuer's 2020-2022 Long-Term Incentive Plan under Rule 16b-3(d). Read SEC document |
| March 04, 2022 Filed Mar 8, 2022 21:21 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | SaleCommon Stock | 3,480 | $29.19 | $101,581.20 |
DisclosureSEC source: 0000899243-22-009913 · doc4.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 32,380 F1 · price: Price reflects the weighted average sale price for the shares, which were sold in multiple transactions at prices that ranged from $29.07 to $29.47. Upon request of the SEC staff, the issuer or a security holder of the issuer, the reporting person will provide information regarding the number of shares sold at each separate price. Read SEC document |
| January 01, 2022 Filed Jan 4, 2022 21:43 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 4,706 | $0.00 | $0.00 |
DisclosureSEC source: 0000949157-22-000009 · wf-form4_164133257593721.xml · nonDerivative · entry 4 Hoffman Robert F · CIK 0001603836 · Principal Accounting Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 35,860 F5 · shares: Represents time vesting share units granted to the Reporting Person in connection with the Issuer's 2022-2024 Long-Term Incentive Plan under Rule 16b-3(d), all of which will vest in the ordinary course on the last day of the Plan Period, December 31, 2024. F6 · balance_after: Includes unvested time vesting units granted to the Reporting Person pursuant to Issuer's 2020-2022, 2021-2023 and 2022-2024 Long-Term Incentive Plans under Rule 16b-3(d). Read SEC document |
| December 31, 2021 Filed Jan 4, 2022 21:43 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 7,077 | $16.56 | $117,195.12 |
DisclosureSEC source: 0000949157-22-000009 · wf-form4_164133257593721.xml · nonDerivative · entry 3 Hoffman Robert F · CIK 0001603836 · Principal Accounting Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 31,154 F4 · shares: Reports shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of performance share units granted to the Reporting Person. F2 · balance_after: Includes unvested time vesting units granted to the Reporting Person pursuant to Issuer's 2020-2022 and 2021-2023 Long-Term Incentive Plans under Rule 16b-3(d). Read SEC document |
| December 31, 2021 Filed Jan 4, 2022 21:43 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | GrantCommon Stock | 15,976 | $0.00 | $0.00 |
DisclosureSEC source: 0000949157-22-000009 · wf-form4_164133257593721.xml · nonDerivative · entry 2 Hoffman Robert F · CIK 0001603836 · Principal Accounting Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 38,231 F3 · shares: Represents shares of common stock acquired by the Reporting Person upon the vesting of performance share units granted in connection with the Issuer's 2019-2021 Long-Term Incentive Plan under Rule 16b-3(d). F2 · balance_after: Includes unvested time vesting units granted to the Reporting Person pursuant to Issuer's 2020-2022 and 2021-2023 Long-Term Incentive Plans under Rule 16b-3(d). Read SEC document |
| December 31, 2021 Filed Jan 4, 2022 21:43 UTC | CENTURY ALUMINUM CO CENX · Entity 3947 | Tax withholdingCommon Stock | 3,290 | $16.56 | $54,482.40 |
DisclosureSEC source: 0000949157-22-000009 · wf-form4_164133257593721.xml · nonDerivative · entry 1 Hoffman Robert F · CIK 0001603836 · Principal Accounting Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 22,255 F1 · shares: Reports shares withheld by the Issuer to satisfy tax obligations in connection with the vesting of time vesting share units granted to the Reporting Person. F2 · balance_after: Includes unvested time vesting units granted to the Reporting Person pursuant to Issuer's 2020-2022 and 2021-2023 Long-Term Incentive Plans under Rule 16b-3(d). Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.