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AMKRNasdaq
AMKOR TECHNOLOGY, INC.
Semiconductors & Related Devices · DE · CIK 1047127
Amkor provides outsourced semiconductor assembly and test services, packaging advanced technologies for leading electronics companies
$20.52B
Market cap
$82.34
Last close
+4.6%
1D
-12.0%
5D
6.3M
Volume
Price · last 39 sessions+16.0%
May 4L $64.95 · H $93.55Jun 29
111
Total filings
May 21, 2026
Last filing
12/31
Fiscal year end
8-KReg FD DisclosureMay 21, 20268-KShareholder VoteMay 19, 20268-KMaterial Agreement · New Debt / ObligationMay 5, 2026SC 13D/ASC 13D/AMay 5, 20268-KCompany UpdateMay 1, 20268-KCompany UpdateApr 30, 202610-Q10-QApr 28, 20268-KResults of OperationsApr 27, 2026DEFA14ADEFA14AApr 2, 2026DEF 14ADEF 14AApr 2, 202610-K10-KFeb 20, 2026SC 13D/ASC 13D/AFeb 17, 20268-KCompany UpdateFeb 13, 20268-KResults of OperationsFeb 9, 20268-KExecutive ChangeFeb 2, 20268-KExecutive ChangeNov 3, 202510-Q10-QOct 28, 20258-KExecutive Change · Results of OperationsOct 27, 20258-KMaterial Agreement · New Debt / ObligationSep 22, 20258-KCompany UpdateSep 8, 20258-KCompany UpdateSep 8, 202510-Q10-QJul 29, 20258-KResults of OperationsJul 28, 20258-KMaterial Agreement · New Debt / ObligationJul 1, 20258-KShareholder VoteMay 20, 20258-KMaterial Agreement · Agreement TerminatedMay 13, 202510-Q10-QApr 29, 20258-KResults of OperationsApr 28, 2025DEFA14ADEFA14AApr 4, 2025DEF 14ADEF 14AApr 4, 202510-K10-KFeb 21, 20258-KResults of OperationsFeb 10, 20258-KExecutive Change · Reg FD DisclosureDec 16, 202410-Q10-QOct 29, 20248-KResults of OperationsOct 28, 20248-KExecutive Change · Reg FD DisclosureSep 18, 202410-Q10-QJul 30, 20248-KResults of OperationsJul 29, 20248-KShareholder VoteMay 17, 202410-Q10-QMay 1, 20248-KResults of OperationsApr 29, 2024DEF 14ADEF 14AApr 12, 202410-K10-KFeb 16, 20248-KResults of OperationsFeb 5, 20248-KExecutive ChangeDec 18, 20238-KExecutive ChangeDec 15, 202310-Q10-QNov 1, 20238-KResults of OperationsOct 30, 20238-KCompany UpdateSep 7, 202310-Q10-QAug 1, 20238-KResults of OperationsJul 31, 20238-KShareholder VoteMay 19, 202310-Q10-QMay 3, 20238-KResults of OperationsMay 1, 2023DEF 14ADEF 14AApr 12, 202310-K10-KFeb 22, 20238-KResults of OperationsFeb 13, 2023SC 13GSCHEDULE 13GFeb 9, 2023SC 13GSC 13GFeb 3, 20238-KExecutive ChangeNov 18, 202210-Q10-QNov 3, 20228-KResults of OperationsOct 31, 202210-Q10-QAug 4, 20228-KResults of OperationsAug 1, 20228-KShareholder VoteMay 20, 202210-Q10-QMay 5, 20228-KResults of OperationsMay 2, 2022DEF 14ADEF 14AApr 12, 20228-KMaterial Agreement · Agreement TerminatedMar 29, 202210-K10-KFeb 18, 20228-KResults of OperationsFeb 14, 202210-Q10-QOct 29, 20218-KResults of OperationsOct 25, 20218-K/AExecutive ChangeSep 28, 20218-KExecutive ChangeSep 17, 202110-Q10-QJul 30, 20218-KResults of OperationsJul 26, 20218-KExecutive Change · Shareholder VoteMay 20, 202110-Q10-QApr 30, 20218-KResults of OperationsApr 26, 2021
Insider Activity
In the 90 days to Mar 16, 2026: 6 sold $975.0M.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 16, 2026 | Rogers Mark NEVP & General Counsel | Sell | 5,000 | $44.54 | $223K |
| Feb 25, 2026 | Haghighi FarshadExecutive Vice President | Sell | 15,624 | $50.50 | $789K |
| Feb 24, 2026 | Rutten Guillaume Marie JeanDirector | Sell | 20,000 | $48.80 | $976K |
| Feb 24, 2026 | Engel Kevin K.President and CEO | Sell | 12,500 | $48.75 | $609K |
| Feb 17, 2026 | Rutten Guillaume Marie JeanDirector | Sell | 10,000 | $45.89 | $459K |
| Feb 17, 2026 | Engel Kevin K.President and CEO | Sell | 5,316 | $46.03 | $245K |
| Feb 17, 2026 | Rogers Mark NEVP & General Counsel | Sell | 5,000 | $46.92 | $235K |
| Feb 12, 2026 | Kim John TTenPercentOwner,Other | Sell | 10,000,000 | $48.49 | $484.9M |
| Feb 12, 2026 | 915 Investments, LpOther | Sell | 10,000,000 | $48.49 | $484.9M |
| Jan 16, 2026 | Rogers Mark NEVP & General Counsel | Sell | 5,000 | $49.28 | $246K |
| Jan 15, 2026 | Rutten Guillaume Marie JeanDirector | Sell | 10,000 | $53.14 | $531K |
| Dec 16, 2025 | Rogers Mark NEVP & General Counsel | Sell | 20,000 | $42.95 | $859K |
| Dec 15, 2025 | Rutten Guillaume Marie JeanPresident and CEO | Sell | 10,000 | $44.80 | $448K |
| Dec 15, 2025 | Churchill Winston JDirector | Sell | 5,000 | $44.29 | $221K |
| Dec 12, 2025 | Tily Gil C.Director | Sell | 20,000 | $46.44 | $929K |
| Dec 12, 2025 | Mccourt MaryfrancesDirector | Sell | 20,000 | $46.02 | $920K |
| Dec 12, 2025 | Engel KevinExecutive Vice President | Sell | 11,000 | $46.21 | $508K |
| Nov 17, 2025 | Rogers Mark NEVP & General Counsel | Sell | 20,000 | $31.69 | $634K |
| Nov 17, 2025 | Rutten Guillaume Marie JeanPresident and CEO | Sell | 10,000 | $31.68 | $317K |
| Oct 15, 2025 | Rutten Guillaume Marie JeanPresident and CEO | Sell | 10,000 | $30.74 | $307K |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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