Robert F. Hoffman, SVP of IT and CAO at Century Aluminum Co. ($CENX), sold shares on the open market four times over the past year, totaling about $1.3 million. His most recent sale occurred on March 11, 2026. These sales rank him 4,324th among 11,678 insiders in our database by total value sold, below the average of $8.6 million across about 6.4 transactions per insider. Hoffman made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 11, 2026 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | S | Common Stock | 10529 | $56.51 | 56,657.5476 | 99,200,000 | 15.67% | 0.01% |
| March 4, 2026 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | S | Common Stock | 10000 | $56.33 | 67,186.5476 | 99,200,000 | 12.96% | 0.01% |
| Dec. 31, 2025 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | A | Common Stock | 31650 | $0.00 | 90,733.0000 | 99,200,000 | 53.57% | 0.03% |
| Jan. 1, 2026 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | A | Common Stock | 5122 | $0.00 | 77,172.0000 | 99,200,000 | 7.11% | 0.01% |
| Dec. 31, 2025 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | F | Common Stock | 6228 | $39.18 | 72,050.0000 | 99,200,000 | 7.96% | 0.01% |
| Dec. 31, 2025 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | F | Common Stock | 12455 | $39.18 | 78,278.0000 | 99,200,000 | 13.73% | 0.01% |
| March 20, 2025 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | S | Common Stock | 5000 | $20.24 | 59,097.5476 | 98,400,000 | 7.80% | 0.01% |
| March 14, 2025 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | S | Common Stock | 2500 | $19.99 | 64,097.5476 | 98,400,000 | 3.75% | 0.00% |
| Dec. 31, 2024 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | F | Common Stock | 5401 | $18.22 | 60,192.5476 | 98,800,000 | 8.23% | 0.01% |
| Dec. 31, 2024 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | F | Common Stock | 1852 | $18.22 | 58,340.5476 | 98,800,000 | 3.08% | 0.00% |
| Jan. 1, 2025 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | A | Common Stock | 8257 | $0.00 | 66,597.5476 | 98,400,000 | 14.15% | 0.01% |
| Dec. 31, 2024 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | SVP, IT and CAO | A | Common Stock | 13723 | $0.00 | 65,593.5476 | 98,800,000 | 26.46% | 0.01% |
| Dec. 31, 2023 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | F | Common Stock | 1075 | $12.14 | 39,917.5476 | 91,400,000 | 2.62% | 0.00% |
| Dec. 31, 2023 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | F | Common Stock | 2519 | $12.14 | 37,398.5476 | 91,400,000 | 6.31% | 0.00% |
| Jan. 1, 2024 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | A | Common Stock | 14472 | $0.00 | 51,870.5476 | 92,400,000 | 38.70% | 0.02% |
| Dec. 31, 2023 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | A | Common Stock | 2425 | $0.00 | 40,992.5476 | 91,400,000 | 6.29% | 0.00% |
| Dec. 20, 2023 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | S | Common Stock | 3000 | $12.00 | 47,567.5476 | 91,400,000 | 5.93% | 0.00% |
| Dec. 21, 2023 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | S | Common Stock | 9000 | $12.08 | 38,567.5476 | 91,400,000 | 18.92% | 0.01% |
| Dec. 30, 2022 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | F | Common Stock | 3745 | $8.18 | 34,742.5476 | 0 | 9.73% | 0.00% |
| Dec. 30, 2022 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | F | Common Stock | 4846 | $8.18 | 38,487.5476 | 0 | 11.18% | 0.00% |
| Dec. 30, 2022 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | A | Common Stock | 10939 | $0.00 | 43,333.5476 | 0 | 33.77% | 0.00% |
| Jan. 1, 2023 | CENTURY ALUMINUM CO | $CENX | Hoffman Robert F | VP, IT and CAO | A | Common Stock | 15825 | $0.00 | 50,567.5476 | 91,400,000 | 45.55% | 0.02% |