Updated Jul 16, 2026 · Last SEC filing 2026-07-02
AMKOR TECHNOLOGY, INC. (AMKR) has filed 35 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 6 Form 8-K material event filings were reported by AMKR in the last 90 days. 11 Form 144 notices of proposed sale were filed for AMKR stock. InsiderAlpha tracks every AMKR SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Semiconductors & Related Devices (SIC 3674) |
|---|---|
| SEC CIK | 0001047127 |
| Form 4 filings (90d) | 35 |
|---|---|
| Form 8-K filings (90d) | 6 |
| Form 144 notices (90d) | 11 |
| Latest Form 4 filing | 2026-07-02 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Faust Megan | CFO | M — Option exercise | 8.7K | $0.00 | — | SEC | |
| Rutten Guillaume Marie Jean | Director | M — Option exercise | 8.7K | $0.00 | — | SEC | |
| Engel Kevin | President and CEO | F — Tax withholding / forfeiture | 3.7K | $86.23 | $321K | SEC | |
| Engel Kevin | President and CEO | M — Option exercise | 8.7K | $0.00 | — | SEC | |
| Faust Megan | CFO | F — Tax withholding / forfeiture | 3.7K | $86.23 | $321K | SEC | |
| ROGERS MARK N | EVP & General Counsel | S — Open-market sale | 5.0K | $86.21 | $431K | SEC | |
| ROGERS MARK N | EVP & General Counsel | M — Option exercise | 5.0K | $7.40 | $37K | SEC | |
| CHURCHILL WINSTON J | Director | M — Option exercise | 5.0K | $19.39 | $97K | SEC | |
| CHURCHILL WINSTON J | Director | S — Open-market sale | 5.0K | $78.20 | $391K | SEC | |
| KIM SUSAN Y | Director | A — Grant or award | 9.9K | $0.00 | — | SEC | |
| Faust Megan | CFO | S — Open-market sale | 1.0K | $70.30 | $70K | SEC | |
| Faust Megan | CFO | S — Open-market sale | 1.0K | $64.60 | $65K | SEC | |
| ROGERS MARK N | EVP & General Counsel | M — Option exercise | 5.0K | $7.40 | $37K | SEC | |
| ROGERS MARK N | EVP & General Counsel | S — Open-market sale | 5.0K | $71.63 | $358K | SEC | |
| McCourt MaryFrances | Director | M — Option exercise | 9.9K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for AMKOR TECHNOLOGY, INC. (AMKR). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| ALEXANDER DOUGLAS A | 11 | $430K |
| ROGERS MARK N | 9 | $1.20M |
| CHURCHILL WINSTON J | 8 | $1.02M |
| Carolin Roger Anthony | 7 | $1.76M |
| Rutten Guillaume Marie Jean | 7 | $3.71M |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in AMKR insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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