AMKR (Amkor Technology Inc)
Insider Trading Activity
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.
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-19 | MARK N ROGERS | EVP & General Counsel | MIXED | — | — |
| 2026-08-13 | Megan Faust | CFO | Sell | — | — |
| 2026-08-11 | DOUGLAS A ALEXANDER | Director | MIXED | — | — |
| 2026-08-07 | Guillaume Marie Jean Rutten | Director | Sell | — | — |
| 2026-08-07 | Guillaume Marie Jean Rutten | Director | Sell | — | — |
| 2026-07-31 | WINSTON J CHURCHILL | Director | G | — | — |
| 2026-07-31 | Kevin K. Engel | President and CEO | Sell | — | — |
| 2026-07-22 | AGNES C KIM | — | M | — | — |
| 2026-07-22 | JAMES J KIM | 10%+ Owner | M | — | — |
| 2026-07-20 | MARK N ROGERS | EVP & General Counsel | MIXED | — | — |
| 2026-07-16 | Megan Faust | CFO | Sell | — | — |
| 2026-07-02 | Megan Faust | CFO | MIXED | — | — |
| 2026-07-02 | Guillaume Marie Jean Rutten | Director | M | — | — |
| 2026-07-02 | Kevin K. Engel | President and CEO | MIXED | — | — |
| 2026-06-25 | DAVID N WATSON | Director | A | — | — |
| 2026-06-25 | WINSTON J CHURCHILL | Director | A | — | — |
| 2026-06-25 | Guillaume Marie Jean Rutten | Director | A | — | — |
| 2026-06-25 | Gil C. Tily | Director | A | — | — |
| 2026-06-25 | Roger Anthony Carolin | Director | A | — | — |
| 2026-06-25 | DOUGLAS A ALEXANDER | Director | A | — | — |
| 2026-06-25 | Robert Randolph Morse | Director | A | — | — |
| 2026-06-25 | Daniel JL Liao | Director | A | — | — |
| 2026-06-25 | SUSAN Y KIM | Director | A | — | — |
| 2026-06-25 | MaryFrances McCourt | Director | A | — | — |
| 2026-06-18 | MARK N ROGERS | EVP & General Counsel | MIXED | — | — |
| 2026-06-16 | WINSTON J CHURCHILL | Director | MIXED | — | — |
| 2026-06-12 | SUSAN Y KIM | Director | A | — | — |
| 2026-06-11 | Megan Faust | CFO | Sell | — | — |
| 2026-05-20 | Megan Faust | CFO | Sell | — | — |
| 2026-05-20 | MARK N ROGERS | EVP & General Counsel | MIXED | — | — |
| 2026-05-15 | DAVID N WATSON | Director | M | — | — |
| 2026-05-15 | Gil C. Tily | Director | M | — | — |
| 2026-05-15 | Guillaume Marie Jean Rutten | Director | M | — | — |
| 2026-05-15 | WINSTON J CHURCHILL | Director | M | — | — |
| 2026-05-15 | Daniel JL Liao | Director | A | — | — |
| 2026-05-15 | Robert Randolph Morse | Director | A | — | — |
| 2026-05-15 | MaryFrances McCourt | Director | M | — | — |
| 2026-05-15 | DOUGLAS A ALEXANDER | Director | A | — | — |
| 2026-05-15 | Roger Anthony Carolin | Director | A | — | — |
| 2026-05-15 | SUSAN Y KIM | Director | MIXED | — | — |
| 2026-05-13 | Gil C. Tily | Director | Sell | — | — |
| 2026-05-12 | Guillaume Marie Jean Rutten | Director | Sell | — | — |
| 2026-05-07 | DOUGLAS A ALEXANDER | Director | MIXED | — | — |
| 2026-05-07 | WINSTON J CHURCHILL | Director | Sell | — | — |
| 2026-05-07 | Roger Anthony Carolin | Director | MIXED | — | — |
| 2026-04-20 | MARK N ROGERS | EVP & General Counsel | MIXED | — | — |
| 2026-04-09 | Robert Randolph Morse | Director | MIXED | — | — |
| 2026-04-09 | SUSAN Y KIM | Director | M | — | — |
| 2026-04-02 | DOUGLAS A ALEXANDER | Director | A | — | — |
| 2026-04-02 | Roger Anthony Carolin | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | — | 29,594,980 | — |
| — | 10%+ Owner | 22,305,157 | — |
| — | — | 10,937,355 | — |
| — | Director | 7,355,387 | — |
| — | — | 6,189,831 | — |
| — | — | 3,798,225 | — |
| — | — | 3,789,479 | — |
| — | — | 3,789,479 | — |
| — | — | 2,670,226 | — |
| — | — | 1,945,840 | — |
| — | 10%+ Owner | 1,236,645 | — |
| — | — | 1,235,000 | — |
| — | — | 1,194,000 | — |
| — | — | 1,124,000 | — |
| — | — | 1,093,574 | — |
| — | — | 895,000 | — |
| — | — | 847,965 | — |
| — | — | 546,787 | — |
| — | — | 546,787 | — |
| — | — | 546,787 | — |
| — | Director | 486,732 | — |
| — | — | 443,811 | — |
| — | President and CEO | 286,200 | — |
| — | — | 164,678 | — |
| — | — | 164,678 | — |
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.