AMKR · Insider Trading
Amkor Technology Inc
Every open-market purchase and sale reported by AMKR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-15 | Megan Faust | CFO | Sell | −1,000 | −$46.92K |
| 2026-10-06 | Douglas A Alexander | Director | MIXED | — | −$232.45K |
| 2026-09-24 | Gil C. Tily | Director | A | +3 deriv. | — |
| 2026-09-24 | Guillaume Marie Jean Rutten | Director | A | +3 deriv. | — |
| 2026-09-24 | Winston J Churchill | Director | A | +3 deriv. | — |
| 2026-09-24 | Daniel JL Liao | Director | A | +18 deriv. | — |
| 2026-09-24 | David N Watson | Director | A | +3 deriv. | — |
| 2026-09-24 | MaryFrances McCourt | Director | A | +16 deriv. | — |
| 2026-09-24 | Robert Randolph Morse | Director | A | +31 deriv. | — |
| 2026-09-24 | Douglas A Alexander | Director | A | +45 deriv. | — |
| 2026-09-24 | Roger Anthony Carolin | Director | A | +31 deriv. | — |
| 2026-09-24 | Susan Y Kim | Director | A | — | — |
| 2026-09-10 | Megan Faust | CFO | Sell | −1,000 | −$49.05K |
| 2026-08-19 | Mark N Rogers | EVP & General Counsel | MIXED | — | −$261.90K |
| 2026-08-13 | Megan Faust | CFO | Sell | −1,000 | −$54.45K |
| 2026-08-11 | Douglas A Alexander | Director | MIXED | — | −$236.50K |
| 2026-08-07 | Guillaume Marie Jean Rutten | Director | Sell | −50,000 | −$2.75M |
| 2026-08-07 | Guillaume Marie Jean Rutten | Director | Sell | −50,000 | −$2.75M |
| 2026-07-31 | Winston J Churchill | Director | G | −100 | — |
| 2026-07-31 | Kevin K. Engel | President and CEO | Sell | −3,221 | −$151.39K |
| 2026-07-22 | Agnes C Kim | — | M | +450,000 | +$4.34M |
| 2026-07-22 | James J Kim | 10%+ Owner | M | +450,000 | +$4.34M |
| 2026-07-20 | Mark N Rogers | EVP & General Counsel | MIXED | — | −$288.60K |
| 2026-07-16 | Megan Faust | CFO | Sell | −1,000 | −$69.91K |
| 2026-07-02 | Megan Faust | CFO | MIXED | +4,967 | −$321.21K |
| 2026-07-02 | Guillaume Marie Jean Rutten | Director | M | +8,692 | — |
| 2026-07-02 | Kevin K. Engel | President and CEO | MIXED | +4,967 | −$321.21K |
| 2026-06-25 | David N Watson | Director | A | +2 deriv. | — |
| 2026-06-25 | Winston J Churchill | Director | A | +2 deriv. | — |
| 2026-06-25 | Guillaume Marie Jean Rutten | Director | A | +2 deriv. | — |
| 2026-06-25 | Gil C. Tily | Director | A | +2 deriv. | — |
| 2026-06-25 | Roger Anthony Carolin | Director | A | +20 deriv. | — |
| 2026-06-25 | Douglas A Alexander | Director | A | +28 deriv. | — |
| 2026-06-25 | Robert Randolph Morse | Director | A | +20 deriv. | — |
| 2026-06-25 | Daniel JL Liao | Director | A | +11 deriv. | — |
| 2026-06-25 | Susan Y Kim | Director | A | — | — |
| 2026-06-25 | MaryFrances McCourt | Director | A | +10 deriv. | — |
| 2026-06-18 | Mark N Rogers | EVP & General Counsel | MIXED | — | −$394.05K |
| 2026-06-16 | Winston J Churchill | Director | MIXED | — | −$294.05K |
| 2026-06-12 | Susan Y Kim | Director | A | +9,893 | — |
| 2026-06-11 | Megan Faust | CFO | Sell | −1,000 | −$70.30K |
| 2026-05-20 | Megan Faust | CFO | Sell | −1,000 | −$64.60K |
| 2026-05-20 | Mark N Rogers | EVP & General Counsel | MIXED | — | −$321.15K |
| 2026-05-15 | David N Watson | Director | M | +9,893 | — |
| 2026-05-15 | Gil C. Tily | Director | M | +9,893 | — |
| 2026-05-15 | Guillaume Marie Jean Rutten | Director | M | +482 | — |
| 2026-05-15 | Winston J Churchill | Director | M | +9,893 | — |
| 2026-05-15 | Daniel JL Liao | Director | A | +2,613 deriv. | — |
| 2026-05-15 | Robert Randolph Morse | Director | A | +2,613 deriv. | — |
| 2026-05-15 | MaryFrances McCourt | Director | M | +9,893 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| 915 Investments, LP | — | 29,594,980 | $1.24B |
| John T Kim | 10%+ Owner | 22,305,157 | $932.80M |
| Agnes C Kim | — | 10,937,355 | $457.40M |
| Susan Y Kim | Director | 7,015,387 | $293.38M |
| David D Kim | — | 3,798,225 | $158.84M |
| Sujoda Management, LLC | — | 3,789,479 | $158.48M |
| SUJODA Investments, LP | — | 3,789,479 | $158.48M |
| James J Kim | 10%+ Owner | 1,236,645 | $51.72M |
| 2024 Grantor Retained Annuity Trust of James J. Kim dtd. 8/5/2024 | — | 1,235,000 | $51.65M |
| T. Kim 2024 GRAT #1 dtd. 08/09/2024 John | — | 1,194,000 | $49.93M |
| 2024 Grantor Retained Annuity Trust of Susan Y. Kim dtd. 8/5/2024 | — | 1,124,000 | $47.01M |
| 2024 Grantor Retained Annuity Trust of Agnes C. Kim dtd. 8/5/2024 | — | 895,000 | $37.43M |
| Guillaume Marie Jean Rutten | Director | 486,732 | $20.36M |
| Robert Randolph Morse | Director | 137,355 | $5.74M |
| Megan Faust | CFO | 133,105 | $5.57M |
| David N Watson | Director | 130,650 | $5.46M |
| Gil C. Tily | Director | 118,699 | $4.96M |
| Roger Anthony Carolin | Director | 114,409 | $4.78M |
| MaryFrances McCourt | Director | 65,811 | $2.75M |
| T. Kim 2024 GRAT #2 dtd. 08/09/2024 John | — | 59,250 | $2.48M |
| Mark N Rogers | EVP & General Counsel | 43,904 | $1.84M |
| Daniel JL Liao | Director | 40,804 | $1.71M |
| Douglas A Alexander | Director | 34,109 | $1.43M |
| Winston J Churchill | Director | 33,290 | $1.39M |
| Kevin K. Engel | President and CEO | 9,666 | $404.23K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the AMKR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.