MaryFrances McCourt is Director at AMKOR TECHNOLOGY, INC. (AMKR). They have made 5 open-market trades across 1 company since 2019, most recently 2026-05-13.
CIK 0001730724
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $18K since 2019, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AMKR | 65,811 | $2.3M |
Shares reported on the most recent Form 4, priced at the 2026-05-15 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AMKR | SELL | 2025-12-12 | 2025-12-16 | $46.02 | $1.8M | -2.2% | +20.1% | +8.9% |
| AMKR | SELL | 2021-08-04 | 2021-08-05 | $26.95 | $67K | -9.1% | +4.2% | -15.7% |
| AMKR | SELL | 2021-08-02 | 2021-08-04 | $25.24 | $1.0M | -2.7% | +6.3% | -16.0% |
| AMKR | SELL | 2021-02-11 | 2021-02-16 | $21.66 | $678K | -1.8% | -5.0% | -20.6% |
| AMKR | BUY | 2019-05-16 | 2021-01-29 | $7.26 | $18K | +17.2% | +54.0% | +30.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.