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Gil C. Tily

AMKR
DIRECTOR · AMKOR TECHNOLOGY, INC. · CIK 0001405591
FILING MIX · LIFETIME66%/34%
BUYS
35
SELLS
18
TOTAL VALUE
$6.52M
COMPANIES
1
ACTIVE SINCE
May 2020
HOLDINGS NOW
2,616
AVG SELL PX
$33.65
TRADE KIND
SHOWING 53 / 53
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
6 backtested trades · 8 horizons · 6 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Gil C. Tily, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d6+33.33%-0.58%+0.87%-1.45%-0.05%—
14d6+50.00%+0.17%+1.29%+1.76%+0.35%—
30d6+50.00%+4.82%+1.91%+2.91%+1.47%—
60d6+33.33%+7.05%+4.23%+2.82%+6.79%—
90d6(1 pending)+80.00%-1.61%+5.25%-6.86%-7.68%—
180d6(1 pending)+40.00%+9.49%+9.86%-0.37%-8.81%—
1y6(2 pending)+75.00%-11.82%+17.63%-29.44%-25.44%—
2y6(2 pending)+25.00%+45.67%+38.89%+6.79%+8.77%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
AMKR · 2,615.517 shares · as of Jun 23, 2026
040,40880,816121,223161,631202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 35 buys / 18 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
2.517——2,615.517Jun 23, 2026Jun 25, 2026 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASE
9,893——118,699May 13, 2026May 15, 2026 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
9,893.057——0May 13, 2026May 15, 2026 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
2,613——2,613May 13, 2026May 15, 2026 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
15,000$77.30$1.16M108,806May 11, 2026May 13, 2026 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
18.156——9,893.057Mar 31, 2026Apr 2, 2026 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
20.009——9,874.901Dec 23, 2025Dec 26, 2025 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
20,000$46.44$928.8K123,806Dec 12, 2025Dec 16, 2025 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
27.365——9,854.892Sep 23, 2025Sep 25, 2025 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
38.527——9,827.527Jun 25, 2025Jun 27, 2025 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
9,789——9,789May 15, 2025May 16, 2025 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
6,017.034——0May 14, 2025May 16, 2025 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASE
6,017——143,806May 14, 2025May 16, 2025 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
25.988——6,017.034Apr 2, 2025Apr 4, 2025 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
108.798——5,991.047Dec 23, 2024Dec 26, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
14.864——5,882.249Sep 23, 2024Sep 25, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
12.385——5,867.385Jun 24, 2024Jun 26, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
8,571.042——0May 14, 2024May 16, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
5,855——5,855May 14, 2024May 16, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASE
8,571——137,789May 14, 2024May 16, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
20,000——0May 3, 2024May 7, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASE
20,000$19.39$387.8K149,218May 3, 2024May 7, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
20,000$32.20$644.0K129,218May 3, 2024May 7, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
20.988——8,571.042Apr 1, 2024Apr 3, 2024 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
19.533——8,550.054Dec 26, 2023Dec 27, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
8,809$28.10$247.5K129,218Dec 4, 2023Dec 6, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
28.399——8,530.521Sep 25, 2023Sep 27, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
24.122——8,502.122Jun 26, 2023Jun 28, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
8,478——8,478May 16, 2023May 18, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASE
8,809——138,027May 16, 2023May 18, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
8,809.408——0May 16, 2023May 18, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
26.108——8,809.408Mar 20, 2023Mar 22, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
20,000$25.81$516.2K137,924Feb 27, 2023Mar 1, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
20,000——0Feb 27, 2023Mar 1, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASE
20,000$9.83$196.5K157,924Feb 27, 2023Mar 1, 2023 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
26.76——8,783.3Dec 27, 2022Dec 29, 2022 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
25.988——8,756.54Sep 26, 2022Sep 28, 2022 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
24.552——8,730.552Jun 27, 2022Jun 29, 2022 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
8,706——137,924May 17, 2022May 19, 2022 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
15,000$24.59$368.9K129,218Jul 29, 2021Jul 30, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
3,094——144,218May 18, 2021May 19, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
20,000——20,000May 18, 2021May 19, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASE
10,938$9.86$107.8K147,489Mar 1, 2021Mar 3, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
6,365$24.71$157.3K141,124Mar 1, 2021Mar 3, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
10,938——0Mar 1, 2021Mar 3, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
20,000——0Feb 11, 2021Feb 15, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASE
64,062$9.86$631.7K161,631Feb 11, 2021Feb 15, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
64,062——10,938Feb 11, 2021Feb 15, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
38,919$22.95$893.2K122,712Feb 11, 2021Feb 15, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASE
20,000$7.07$141.4K142,712Feb 11, 2021Feb 15, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
SALE
6,161$22.95$141.4K136,551Feb 11, 2021Feb 15, 2021 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
20,000——20,000May 19, 2020May 20, 2020 ↗View →
AMKR
AMKOR TECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
6,106——97,569May 19, 2020May 20, 2020 ↗View →
Other insiders · AMKR
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About this filer
CIK 0001405591
ROLE
Director
PRIMARY
AMKR
COMPANIES
1
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001405591DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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