Amkor Technology, Inc. SEC filings AMKR
Amkor Technology, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Oct 28, 2019. Its latest annual report, Form ARS, was filed on Apr 2, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 27, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 26, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Oct 27, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 26, 2026 | Oct 26, 2026 |
| 4 | Insider transaction | Oct 15, 2026 | Oct 13, 2026 |
| 144 | Notice of proposed sale | Oct 13, 2026 | — |
| 4 | Insider transaction | Oct 6, 2026 | Oct 2, 2026 |
| 144 | Notice of proposed sale | Oct 2, 2026 | — |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 24, 2026 | Sep 22, 2026 |
| 4 | Insider transaction | Sep 10, 2026 | Sep 8, 2026 |
| 144 | Notice of proposed sale | Sep 8, 2026 | — |
| 4 | Insider transaction | Aug 19, 2026 | Aug 17, 2026 |
| 144 | Notice of proposed sale | Aug 17, 2026 | — |
| 4 | Insider transaction | Aug 13, 2026 | Aug 11, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 7, 2026 |
| 144 | Notice of proposed sale | Aug 11, 2026 | — |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| 144 | Notice of proposed sale | Aug 7, 2026 | — |
| 144 | Notice of proposed sale | Aug 6, 2026 | — |
| 144 | Notice of proposed sale | Aug 5, 2026 | — |
| 4 | Insider transaction | Jul 31, 2026 | Jul 30, 2026 |
| 4 | Insider transaction | Jul 31, 2026 | Jul 30, 2026 |
| 144 | Notice of proposed sale | Jul 30, 2026 | — |
| 10-Q | Quarterly report | Jul 28, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 27, 2026 | Jul 27, 2026 |
| 4 | Insider transaction | Jul 22, 2026 | Jul 20, 2026 |
| 4 | Insider transaction | Jul 22, 2026 | Jul 20, 2026 |
| 4 | Insider transaction | Jul 20, 2026 | Jul 16, 2026 |
| 4 | Insider transaction | Jul 16, 2026 | Jul 14, 2026 |
| 144 | Notice of proposed sale | Jul 16, 2026 | — |
| 144 | Notice of proposed sale | Jul 14, 2026 | — |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 23, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 16, 2026 | Jun 12, 2026 |
| 144 | Notice of proposed sale | Jun 16, 2026 | — |
| 4 | Insider transaction | Jun 12, 2026 | Jun 12, 2026 |
| 144 | Notice of proposed sale | Jun 12, 2026 | — |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| 144 | Notice of proposed sale | Jun 9, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 22, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
May 21, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| 4 | Insider transaction | May 20, 2026 | May 19, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 19, 2026 | May 13, 2026 |
| 144 | Notice of proposed sale | May 19, 2026 | — |
| 144 | Notice of proposed sale | May 18, 2026 | — |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 11, 2026 |
| 4 | Insider transaction | May 12, 2026 | May 8, 2026 |
| 144 | Notice of proposed sale | May 11, 2026 | — |
| 144 | Notice of proposed sale | May 8, 2026 | — |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 144 | Notice of proposed sale | May 5, 2026 | — |
| 144 | Notice of proposed sale | May 5, 2026 | — |
| 144 | Notice of proposed sale | May 5, 2026 | — |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
May 5, 2026 | Apr 30, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 5, 2026 | — |
| 8-K |
Current report
Other events
|
May 1, 2026 | Apr 30, 2026 |
| 8-K |
Current report
Other events
|
Apr 30, 2026 | Apr 30, 2026 |
| 10-Q | Quarterly report | Apr 28, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 27, 2026 | Apr 27, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| 144 | Notice of proposed sale | Apr 16, 2026 | — |
| 4 | Insider transaction | Apr 9, 2026 | Apr 7, 2026 |
| 4 | Insider transaction | Apr 9, 2026 | Apr 7, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 9, 2026 | — |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| ARS | Annual report to shareholders | Apr 2, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 2, 2026 | — |
| DEF 14A | Proxy statement | Apr 2, 2026 | May 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 18, 2026 | Mar 16, 2026 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 3/A | Form 3/a | Mar 16, 2026 | Feb 2, 2026 |
| 144 | Notice of proposed sale | Mar 16, 2026 | — |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 25, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 144 | Notice of proposed sale | Feb 25, 2026 | — |
| 144 | Notice of proposed sale | Feb 24, 2026 | — |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 144 | Notice of proposed sale | Feb 24, 2026 | — |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 10-K | Annual report | Feb 20, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 16, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 16, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 16, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 16, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 16, 2026 |
| 144 | Notice of proposed sale | Feb 17, 2026 | — |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 144 | Notice of proposed sale | Feb 17, 2026 | — |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 17, 2026 | — |
| 144 | Notice of proposed sale | Feb 17, 2026 | — |
| 8-K |
Current report
Other events
|
Feb 13, 2026 | Feb 12, 2026 |
| 424B7 | Filing | Feb 13, 2026 | — |
| FWP | Free writing prospectus | Feb 13, 2026 | — |
| 424B7 | Filing | Feb 12, 2026 | — |
| FWP | Free writing prospectus | Feb 12, 2026 | — |
| 8-K |
Current report
Results of operations
|
Feb 9, 2026 | Feb 9, 2026 |
| 3 | Initial insider ownership | Feb 2, 2026 | Feb 2, 2026 |
| 8-K |
Current report
Officer or director change
|
Feb 2, 2026 | Feb 2, 2026 |
| 4 | Insider transaction | Jan 20, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Jan 20, 2026 | Jan 16, 2026 |
| 144 | Notice of proposed sale | Jan 16, 2026 | — |
| 144 | Notice of proposed sale | Jan 15, 2026 | — |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 30, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 30, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 30, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 30, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 30, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 23, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 23, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 23, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 23, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 23, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 23, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 23, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 23, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 16, 2025 | Dec 12, 2025 |
| 4 | Insider transaction | Dec 16, 2025 | Dec 12, 2025 |
| 4 | Insider transaction | Dec 16, 2025 | Dec 12, 2025 |
| 144 | Notice of proposed sale | Dec 16, 2025 | — |
| 144 | Notice of proposed sale | Dec 15, 2025 | — |
| 144 | Notice of proposed sale | Dec 15, 2025 | — |
| 144 | Notice of proposed sale | Dec 12, 2025 | — |
| 144 | Notice of proposed sale | Dec 12, 2025 | — |
| 144 | Notice of proposed sale | Dec 12, 2025 | — |
| 4 | Insider transaction | Dec 8, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Dec 8, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Nov 24, 2025 | Nov 20, 2025 |
| 4 | Insider transaction | Nov 24, 2025 | Nov 21, 2025 |
| 4 | Insider transaction | Nov 24, 2025 | Nov 20, 2025 |
| 4 | Insider transaction | Nov 24, 2025 | Nov 20, 2025 |
| 4 | Insider transaction | Nov 24, 2025 | Nov 20, 2025 |
| 4 | Insider transaction | Nov 24, 2025 | Nov 20, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Semiconductors & Related Devices (SIC 3674)
- Listed as
- AMKR (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Tempe, AZ
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1047127
- Former names
- AMKOR TECHNOLOGY INC (until Feb 19, 2015)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.