Rutten Guillaume Marie Jean, a director at Amkor Technology, Inc. ($AMKR), sold shares on the open market seven times over the past year, totaling about $3.34 million. His most recent sale occurred on February 24, 2026. These sales rank 2,528th among 11,678 individual insiders in our database, where the average is $8.59 million across roughly 6.4 transactions. He made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | A | Restricted Stock Units | 482 | $0.00 | 482.0000 | 293,756,000 | 9999.99% | 0.00% |
| March 31, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Common Stock | 8692 | $0.00 | 552,558.0000 | 293,756,000 | 1.60% | 0.00% |
| March 31, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Restricted Stock Units | 8692 | $0.00 | 8,692.0000 | 293,756,000 | 50.00% | 0.00% |
| Feb. 24, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Common Stock | 10748 | $0.00 | 563,866.0000 | 293,756,000 | 1.94% | 0.00% |
| Feb. 24, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | S | Common Stock | 20000 | $48.80 | 543,866.0000 | 293,756,000 | 3.55% | 0.01% |
| Feb. 24, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Restricted Stock Units | 10748 | $0.00 | 0.0000 | 293,756,000 | 100.00% | 0.00% |
| Feb. 20, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Common Stock | 59388 | $0.00 | 553,118.0000 | 293,756,000 | 12.03% | 0.02% |
| Feb. 20, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Restricted Stock Units | 59388 | $0.00 | 118,795.0000 | 293,756,000 | 33.33% | 0.02% |
| Feb. 20, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Restricted Stock Units | 112941 | $0.00 | 56,470.0000 | 293,756,000 | 66.67% | 0.04% |
| Feb. 20, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Common Stock | 112941 | $0.00 | 493,730.0000 | 293,756,000 | 29.66% | 0.04% |
| Feb. 18, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | A | Common Stock | 30587 | $0.00 | 380,789.0000 | 293,756,000 | 8.73% | 0.01% |
| Feb. 18, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | A | Common Stock | 10891 | $0.00 | 350,202.0000 | 293,756,000 | 3.21% | 0.00% |
| Feb. 17, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | S | Common Stock | 10000 | $45.89 | 339,311.0000 | 293,756,000 | 2.86% | 0.00% |
| Feb. 16, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Common Stock | 13920 | $0.00 | 349,311.0000 | 293,756,000 | 4.15% | 0.00% |
| Feb. 16, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | M | Restricted Stock Units | 13920 | $0.00 | 13,919.0000 | 293,756,000 | 50.00% | 0.00% |
| Jan. 15, 2026 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | Director | S | Common Stock | 10000 | $53.14 | 335,391.0000 | 293,756,000 | 2.90% | 0.00% |
| Dec. 31, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Restricted Stock Units | 8692 | $0.00 | 17,384.0000 | 293,636,000 | 33.33% | 0.00% |
| Dec. 31, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 8692 | $0.00 | 345,391.0000 | 293,636,000 | 2.58% | 0.00% |
| Dec. 15, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 10000 | $44.80 | 336,699.0000 | 293,636,000 | 2.88% | 0.00% |
| Nov. 17, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 10000 | $31.68 | 346,699.0000 | 293,636,000 | 2.80% | 0.00% |
| Oct. 15, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 10000 | $30.74 | 356,699.0000 | 293,636,000 | 2.73% | 0.00% |
| Sept. 30, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 8692 | $0.00 | 366,699.0000 | 293,577,000 | 2.43% | 0.00% |
| Sept. 30, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Restricted Stock Units | 8692 | $0.00 | 26,076.0000 | 293,577,000 | 25.00% | 0.00% |
| Sept. 23, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 10000 | $30.00 | 358,007.0000 | 293,577,000 | 2.72% | 0.00% |
| June 30, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 8691 | $0.00 | 368,007.0000 | 293,052,000 | 2.42% | 0.00% |
| June 30, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Restricted Stock Units | 8691 | $0.00 | 34,768.0000 | 293,052,000 | 20.00% | 0.00% |
| Feb. 24, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Restricted Stock Units | 10748 | $0.00 | 10,748.0000 | 293,052,000 | 50.00% | 0.00% |
| Feb. 24, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 10748 | $0.00 | 359,316.0000 | 293,052,000 | 3.08% | 0.00% |
| Feb. 20, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | A | Restricted Stock Units | 43459 | $0.00 | 43,459.0000 | 293,052,000 | 9999.99% | 0.01% |
| Feb. 19, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | A | Common Stock | 16736 | $0.00 | 235,627.0000 | 293,052,000 | 7.65% | 0.01% |
| Feb. 20, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 112941 | $0.00 | 348,568.0000 | 293,052,000 | 47.93% | 0.04% |
| Feb. 20, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Restricted Stock Units | 112941 | $0.00 | 169,411.0000 | 293,052,000 | 40.00% | 0.04% |
| Feb. 20, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | A | Restricted Stock Units | 178183 | $0.00 | 178,183.0000 | 293,052,000 | 9999.99% | 0.06% |
| Feb. 14, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 13920 | $0.00 | 218,891.0000 | 293,052,000 | 6.79% | 0.00% |
| Feb. 14, 2025 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Restricted Stock Units | 13920 | $0.00 | 27,839.0000 | 293,052,000 | 33.33% | 0.00% |
| Oct. 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 10000 | $31.51 | 204,971.0000 | 292,992,000 | 4.65% | 0.00% |
| Sept. 16, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Employee Stock Option (Right-to-Buy) | 8125 | $0.00 | 0.0000 | 292,642,000 | 100.00% | 0.00% |
| Sept. 16, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 8125 | $14.17 | 233,096.0000 | 292,642,000 | 3.61% | 0.00% |
| Sept. 16, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 18125 | $30.00 | 214,971.0000 | 292,642,000 | 7.78% | 0.01% |
| Aug. 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Employee Stock Option (Right-to-Buy) | 15000 | $0.00 | 8,125.0000 | 292,642,000 | 64.86% | 0.01% |
| Aug. 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 15000 | $14.17 | 249,971.0000 | 292,642,000 | 6.38% | 0.01% |
| Aug. 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 25000 | $32.56 | 224,971.0000 | 292,642,000 | 10.00% | 0.01% |
| Aug. 13, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | A | Common Stock | 106638 | $0.00 | 234,971.0000 | 292,642,000 | 83.09% | 0.04% |
| July 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 23100 | $42.99 | 128,333.0000 | 292,642,000 | 15.25% | 0.01% |
| July 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 15000 | $14.17 | 153,333.0000 | 292,642,000 | 10.84% | 0.01% |
| July 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 1900 | $42.34 | 151,433.0000 | 292,642,000 | 1.24% | 0.00% |
| July 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Employee Stock Option (Right-to-Buy) | 15000 | $0.00 | 23,125.0000 | 292,642,000 | 39.34% | 0.01% |
| July 1, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 43857 | $0.00 | 138,333.0000 | 292,642,000 | 46.42% | 0.01% |
| July 1, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Restricted Stock Units | 43857 | $0.00 | 0.0000 | 292,642,000 | 100.00% | 0.01% |
| June 17, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Employee Stock Option (Right-to-Buy) | 15000 | $0.00 | 38,125.0000 | 292,167,000 | 28.24% | 0.01% |
| June 17, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 25000 | $34.82 | 94,476.0000 | 292,167,000 | 20.92% | 0.01% |
| June 17, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 15000 | $14.17 | 119,476.0000 | 292,167,000 | 14.36% | 0.01% |
| May 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Employee Stock Option (Right-to-Buy) | 15000 | $0.00 | 53,125.0000 | 292,167,000 | 22.02% | 0.01% |
| May 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 15000 | $14.17 | 129,476.0000 | 292,167,000 | 13.10% | 0.01% |
| May 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 25000 | $33.37 | 104,476.0000 | 292,167,000 | 19.31% | 0.01% |
| April 16, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Employee Stock Option (Right-to-Buy) | 15000 | $0.00 | 68,125.0000 | 292,167,000 | 18.05% | 0.01% |
| April 16, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 15000 | $14.17 | 139,476.0000 | 292,167,000 | 12.05% | 0.01% |
| April 16, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 25000 | $31.17 | 114,476.0000 | 292,167,000 | 17.92% | 0.01% |
| March 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 15000 | $14.17 | 149,476.0000 | 292,167,000 | 11.15% | 0.01% |
| March 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 25000 | $31.23 | 124,476.0000 | 292,167,000 | 16.73% | 0.01% |
| March 15, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Employee Stock Option (Right-to-Buy) | 15000 | $0.00 | 83,125.0000 | 292,167,000 | 15.29% | 0.01% |
| Feb. 22, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Employee Stock Option (Right-to-Buy) | 10625 | $0.00 | 0.0000 | 292,167,000 | 100.00% | 0.00% |
| Feb. 22, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | S | Common Stock | 25000 | $30.63 | 123,728.0000 | 292,167,000 | 16.81% | 0.01% |
| Feb. 22, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 4375 | $14.17 | 148,728.0000 | 292,167,000 | 3.03% | 0.00% |
| Feb. 22, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 10625 | $9.48 | 144,353.0000 | 292,167,000 | 7.95% | 0.00% |
| Feb. 23, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | A | Common Stock | 10748 | $0.00 | 134,476.0000 | 292,167,000 | 8.69% | 0.00% |
| Feb. 23, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Restricted Stock Units | 10748 | $0.00 | 21,496.0000 | 292,167,000 | 33.33% | 0.00% |
| Feb. 22, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Employee Stock Option (Right-to-Buy) | 4375 | $0.00 | 98,125.0000 | 292,167,000 | 4.27% | 0.00% |
| Feb. 20, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | A | Restricted Stock Units | 282352 | $0.00 | 282,352.0000 | 292,167,000 | 9999.99% | 0.10% |
| Feb. 16, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Restricted Stock Units | 13920 | $0.00 | 41,759.0000 | 292,167,000 | 25.00% | 0.00% |
| Feb. 16, 2024 | AMKOR TECHNOLOGY, INC. | $AMKR | Rutten Guillaume Marie Jean | President and CEO | M | Common Stock | 13920 | $0.00 | 133,728.0000 | 292,167,000 | 11.62% | 0.00% |