Guillaume Marie Jean Rutten
CIK 1596796 · View on SEC EDGAR ↗
Insider
First SEC filing: June 25, 2026 · Latest: June 25, 2026
On this page
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net:
$-2,746,250
+ 79 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
79 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 6, 2026 | AMKR | S | 25,000 | $54.50 | $1,362,500 | 461,732 Direct | -5.14% | Disposed | -6.6% (price as of 2026-08-21) |
| Aug. 5, 2026 | AMKR | S | 25,000 | $55.35 | $1,383,750 | 486,732 Direct | -4.89% | Disposed | -8.0% (price as of 2026-08-21) |
| Oct. 15, 2024 | AMKR | S 10b5-1 | 10,000 | $31.51 | $315,100 | 204,971 Direct | -4.65% | Disposed | 61.6% (price as of 2026-08-21) |
| Sept. 16, 2024 | AMKR | S 10b5-1 | 18,125 | $30.00 | $543,750 | 214,971 Direct | -7.78% | Disposed | 69.7% (price as of 2026-08-21) |
| Aug. 15, 2024 | AMKR | S 10b5-1 | 25,000 | $32.56 | $814,000 | 224,971 Direct | -10.00% | Disposed | 56.3% (price as of 2026-08-21) |
| July 15, 2024 | AMKR | S 10b5-1 | 23,100 | $42.99 | $993,069 | 128,333 Direct | -15.25% | Disposed | 18.4% (price as of 2026-08-21) |
| July 15, 2024 | AMKR | S 10b5-1 | 1,900 | $42.34 | $80,446 | 151,433 Direct | -1.24% | Disposed | 20.2% (price as of 2026-08-21) |
| June 17, 2024 | AMKR | S 10b5-1 | 25,000 | $34.82 | $870,500 | 94,476 Direct | -20.92% | Disposed | 46.2% (price as of 2026-08-21) |
| May 15, 2024 | AMKR | S 10b5-1 | 25,000 | $33.37 | $834,250 | 104,476 Direct | -19.31% | Disposed | 52.5% (price as of 2026-08-21) |
| April 16, 2024 | AMKR | S 10b5-1 | 25,000 | $31.17 | $779,250 | 114,476 Direct | -17.92% | Disposed | 63.3% (price as of 2026-08-21) |
| March 15, 2024 | AMKR | S 10b5-1 | 25,000 | $31.23 | $780,750 | 124,476 Direct | -16.73% | Disposed | 63.0% (price as of 2026-08-21) |
| Feb. 22, 2024 | AMKR | S 10b5-1 | 25,000 | $30.63 | $765,750 | 123,728 Direct | -16.81% | Disposed | 66.2% (price as of 2026-08-21) |
| April 17, 2023 | AMKR | S 10b5-1 | 30,000 | $23.92 | $717,600 | 119,808 Direct | -20.03% | Disposed | 112.8% (price as of 2026-08-21) |
| March 15, 2023 | AMKR | S 10b5-1 | 30,000 | $24.19 | $725,700 | 134,808 Direct | -18.20% | Disposed | 110.4% (price as of 2026-08-21) |
| Feb. 15, 2023 | AMKR | S 10b5-1 | 30,000 | $26.97 | $809,100 | 140,000 Direct | -17.65% | Disposed | 88.7% (price as of 2026-08-21) |
| Jan. 17, 2023 | AMKR | S 10b5-1 | 30,000 | $30.73 | $921,900 | 155,000 Direct | -16.22% | Disposed | 65.7% (price as of 2026-08-21) |
| Dec. 15, 2022 | AMKR | S 10b5-1 | 30,000 | $25.68 | $770,400 | 170,000 Direct | -15.00% | Disposed | 98.2% (price as of 2026-08-21) |
| Nov. 15, 2022 | AMKR | S 10b5-1 | 12,307 | $27.80 | $342,135 | 185,000 Direct | -6.24% | Disposed | 83.1% (price as of 2026-08-21) |
| Nov. 15, 2022 | AMKR | S 10b5-1 | 17,693 | $27.22 | $481,603 | 197,307 Direct | -8.23% | Disposed | 87.0% (price as of 2026-08-21) |
| Nov. 8, 2022 | AMKR | S 10b5-1 | 60,000 | $22.00 | $1,320,000 | 200,000 Direct | -23.08% | Disposed | 131.4% (price as of 2026-08-21) |
| Aug. 15, 2022 | AMKR | S 10b5-1 | 30,000 | $22.41 | $672,300 | 230,000 Direct | -11.54% | Disposed | 127.2% (price as of 2026-08-21) |
Showing latest 100 of 211 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 30, 2026 | AMKR | Restricted Stock Units | Common Stock (8,692) | $0.00 | — | 8,692 | Disposed |
| June 23, 2026 | AMKR | Restricted Stock Units | Common Stock (3) | — | — | 3 | Acquired |
| June 30, 2025 | AMKR | Restricted Stock Units | Common Stock (8,691) | $0.00 | — | 8,691 | Disposed |
| Feb. 24, 2025 | AMKR | Restricted Stock Units | Common Stock (10,748) | — | — | 10,748 | Disposed |
| Feb. 20, 2025 | AMKR | Restricted Stock Units | Common Stock (43,459) | $0.00 | — | 43,459 | Acquired |
| Feb. 20, 2025 | AMKR | Restricted Stock Units | Common Stock (178,183) | $0.00 | — | 178,183 | Acquired |
| Feb. 20, 2025 | AMKR | Restricted Stock Units | Common Stock (112,941) | $0.00 | — | 112,941 | Disposed |
| Feb. 14, 2025 | AMKR | Restricted Stock Units | Common Stock (13,920) | $0.00 | — | 13,920 | Disposed |
| Sept. 16, 2024 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (8,125) | $14.17 | July 30, 2030 | 8,125 | Disposed |
| Aug. 15, 2024 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $14.17 | July 30, 2030 | 15,000 | Disposed |
| July 15, 2024 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $14.17 | July 30, 2030 | 15,000 | Disposed |
| July 1, 2024 | AMKR | Restricted Stock Units | Common Stock (43,857) | — | — | 43,857 | Disposed |
| June 17, 2024 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $14.17 | July 30, 2030 | 15,000 | Disposed |
| May 15, 2024 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $14.17 | July 30, 2030 | 15,000 | Disposed |
| April 16, 2024 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $14.17 | July 30, 2030 | 15,000 | Disposed |
| March 15, 2024 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $14.17 | July 30, 2030 | 15,000 | Disposed |
| Feb. 23, 2024 | AMKR | Restricted Stock Units | Common Stock (10,748) | — | — | 10,748 | Disposed |
| Feb. 22, 2024 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (4,375) | $14.17 | July 30, 2030 | 4,375 | Disposed |
| Feb. 22, 2024 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock | $9.48 | Feb. 15, 2029 | 10,625 | Disposed |
| Feb. 20, 2024 | AMKR | Restricted Stock Units | Common Stock (282,352) | — | — | 282,352 | Acquired |
| Feb. 16, 2024 | AMKR | Restricted Stock Units | Common Stock (13,920) | — | — | 13,920 | Disposed |
| Dec. 14, 2023 | AMKR | Restricted Stock Units | Common Stock (43,857) | — | — | 43,857 | Acquired |
| April 17, 2023 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| April 17, 2023 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (5,000) | $9.48 | Feb. 15, 2029 | 5,000 | Disposed |
| March 15, 2023 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| March 15, 2023 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (5,000) | $9.48 | Feb. 15, 2029 | 5,000 | Disposed |
| Feb. 24, 2023 | AMKR | Restricted Stock Units | Common Stock (10,748) | — | — | 10,748 | Acquired |
| Feb. 16, 2023 | AMKR | Restricted Stock Units | Common Stock (55,679) | — | — | 55,679 | Acquired |
| Feb. 15, 2023 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Feb. 15, 2023 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (5,000) | $9.48 | Feb. 15, 2029 | 5,000 | Disposed |
| Jan. 17, 2023 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Jan. 17, 2023 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (5,000) | $9.48 | Feb. 15, 2029 | 5,000 | Disposed |
| Dec. 15, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Dec. 15, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (5,000) | $9.48 | Feb. 15, 2029 | 5,000 | Disposed |
| Nov. 15, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Nov. 15, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (5,000) | $9.48 | Feb. 15, 2029 | 5,000 | Disposed |
| Nov. 8, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (20,000) | $14.17 | July 30, 2030 | 20,000 | Disposed |
| Nov. 8, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $9.48 | Feb. 15, 2029 | 10,000 | Disposed |
| Aug. 15, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Aug. 15, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (5,000) | $9.48 | Feb. 15, 2029 | 5,000 | Disposed |
| Aug. 2, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (20,000) | $14.17 | July 30, 2030 | 20,000 | Disposed |
| Aug. 2, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $9.48 | Feb. 15, 2029 | 10,000 | Disposed |
| March 16, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Feb. 15, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Jan. 18, 2022 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Dec. 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Nov. 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Oct. 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Sept. 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| Aug. 16, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| July 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| June 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (10,000) | $14.17 | July 30, 2030 | 10,000 | Disposed |
| June 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (912) | $9.48 | Feb. 15, 2029 | 912 | Disposed |
| May 17, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $9.48 | Feb. 15, 2029 | 15,000 | Disposed |
| April 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $9.48 | Feb. 15, 2029 | 15,000 | Disposed |
| March 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (5,625) | $9.48 | Feb. 15, 2029 | 5,625 | Disposed |
| March 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (9,375) | $9.86 | Feb. 27, 2027 | 9,375 | Disposed |
| Feb. 16, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (62,500) | $14.17 | July 30, 2030 | 62,500 | Disposed |
| Feb. 16, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (963) | $9.48 | Feb. 15, 2029 | 963 | Disposed |
| Feb. 16, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (14,037) | $9.86 | Feb. 27, 2027 | 14,037 | Disposed |
| Jan. 15, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $9.86 | Feb. 27, 2027 | 15,000 | Disposed |
| Dec. 15, 2020 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $9.86 | Feb. 27, 2027 | 15,000 | Disposed |
| Dec. 1, 2020 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (46,875) | $9.48 | Feb. 15, 2029 | 46,875 | Disposed |
| Nov. 16, 2020 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $9.86 | Feb. 27, 2027 | 15,000 | Disposed |
| Oct. 15, 2020 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $9.86 | Feb. 27, 2027 | 15,000 | Disposed |
| Oct. 9, 2020 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (15,000) | $9.86 | Feb. 27, 2027 | 15,000 | Disposed |
| July 30, 2020 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock (375,000) | $14.17 | July 30, 2030 | 375,000 | Acquired |
| June 5, 2020 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock (7,838) | $9.86 | Feb. 27, 2027 | 7,838 | Disposed |
| Nov. 1, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock (43,750) | $9.86 | Feb. 27, 2029 | 43,750 | Disposed |
| Oct. 31, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock (25,000) | $5.18 | Feb. 13, 2024 | 25,000 | Disposed |
| Feb. 15, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock (150,000) | $9.48 | Feb. 15, 2029 | 150,000 | Acquired |
| March 13, 2017 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock (6,250) | $5.18 | Feb. 13, 2024 | 6,250 | Acquired |
| Feb. 27, 2017 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock (150,000) | $9.86 | Feb. 27, 2027 | 150,000 | Acquired |
| Nov. 21, 2016 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. (23,750) | $5.18 | Feb. 13, 2024 | 23,750 | Disposed |
| Nov. 8, 2016 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. (15,000) | $5.18 | Feb. 13, 2024 | 15,000 | Disposed |
| Nov. 8, 2016 | AMKR | Employee Stock Option (right to Buy) | Amkor Technology, Inc. (15,000) | $5.18 | Feb. 13, 2024 | 15,000 | Disposed |
| March 5, 2015 | AMKR | Employee Stock Option (right to Buy) | Amkor Technology, Inc. (15,000) | $5.18 | Feb. 13, 2024 | 15,000 | Disposed |
| Feb. 13, 2014 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc, (100,000) | $5.18 | Feb. 13, 2024 | 100,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).