Gil C. Tily is Director at AMKOR TECHNOLOGY, INC. (AMKR). They have made 8 open-market trades across 1 company since 2017, most recently 2026-05-13.
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.
0 open-market purchases, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AMKR | 118,699 | $5.0M |
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 | 2026-05-11 | 2026-05-13 | $77.30 | $1.2M | -1.6% | +11.0% | -27.2% |
| AMKR | SELL | 2025-12-12 | 2025-12-16 | $46.44 | $929K | -2.2% | +20.1% | +8.9% |
| AMKR | SELL | 2024-05-03 | 2024-05-07 | $32.20 | $644K | +0.6% | +1.5% | -13.5% |
| AMKR | SELL | 2023-12-04 | 2023-12-06 | $28.10 | $495K | +19.5% | +7.4% | +16.3% |
| AMKR | SELL | 2023-02-27 | 2023-03-01 | $25.81 | $516K | -2.0% | +2.0% | -0.6% |
| AMKR | SELL | 2021-07-29 | 2021-07-30 | $24.59 | $369K | +8.0% | +12.7% | -10.7% |
| AMKR | SELL | 2019-08-02 | 2019-08-05 | $9.09 | $114K | -3.6% | -1.5% | +48.8% |
| AMKR | SELL | 2017-05-11 | 2017-05-12 | $11.86 | $2.1M | -2.6% | -5.2% | -27.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.