Chipmos Technologies Inc SEC filings IMOS
Chipmos Technologies Inc has 525 filings in SEC EDGAR's recent list, going back to Apr 16, 2007. Its latest annual report, Form 20-F, was filed on Apr 14, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Oct 21, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SD | Specialized disclosure (conflict minerals) | May 21, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 22, 2025 | — |
| SD | Specialized disclosure (conflict minerals) | May 23, 2024 | — |
| SD | Specialized disclosure (conflict minerals) | May 18, 2023 | — |
| UPLOAD | Letter from the SEC | May 16, 2023 | — |
| CORRESP | Letter to the SEC | May 12, 2023 | — |
| UPLOAD | Letter from the SEC | May 1, 2023 | — |
| SD | Specialized disclosure (conflict minerals) | May 19, 2022 | — |
| SD | Specialized disclosure (conflict minerals) | May 20, 2021 | — |
| SD | Specialized disclosure (conflict minerals) | May 22, 2020 | — |
| SD | Specialized disclosure (conflict minerals) | May 28, 2019 | — |
| SD | Specialized disclosure (conflict minerals) | May 24, 2018 | — |
| SD | Specialized disclosure (conflict minerals) | May 24, 2017 | — |
| 425 | Form 425 | Nov 1, 2016 | — |
| CERTNAS | Auto-generated paper document | Oct 28, 2016 | — |
| 425 | Form 425 | Oct 27, 2016 | — |
| 8-A12B | Form 8-a12b | Oct 24, 2016 | — |
| 425 | Form 425 | Oct 21, 2016 | — |
| 425 | Form 425 | Oct 17, 2016 | — |
| 425 | Form 425 | Oct 7, 2016 | — |
| 425 | Form 425 | Aug 12, 2016 | — |
| 425 | Form 425 | Aug 11, 2016 | — |
| 425 | Form 425 | Aug 11, 2016 | — |
| 425 | Form 425 | Aug 11, 2016 | — |
| EFFECT | Filing | Jun 23, 2016 | — |
| EFFECT | Filing | Jun 23, 2016 | — |
| CORRESP | Letter to the SEC | Jun 22, 2016 | — |
| CORRESP | Letter to the SEC | Jun 22, 2016 | — |
| CORRESP | Letter to the SEC | May 19, 2016 | — |
| UPLOAD | Letter from the SEC | May 13, 2016 | — |
| CORRESP | Letter to the SEC | Apr 18, 2016 | — |
| UPLOAD | Letter from the SEC | Mar 25, 2016 | — |
| 425 | Form 425 | Mar 15, 2016 | — |
| 425 | Form 425 | Mar 10, 2016 | — |
| 425 | Form 425 | Mar 10, 2016 | — |
| 425 | Form 425 | Mar 9, 2016 | — |
| 425 | Form 425 | Mar 8, 2016 | — |
| CORRESP | Letter to the SEC | Feb 26, 2016 | — |
| 425 | Form 425 | Jan 21, 2016 | — |
| 425 | Form 425 | Jul 17, 2015 | — |
| CB | Auto-generated paper document | Sep 14, 2007 | — |
| CB | Auto-generated paper document | Sep 10, 2007 | — |
| CB | Auto-generated paper document | Jul 24, 2007 | — |
| CB | Auto-generated paper document | May 18, 2007 | — |
| CB | Auto-generated paper document | Apr 16, 2007 | — |
Showing 45 filings. 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
- IMOS (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Taiwan
- Headquarters
- Taiwan, Taiwan
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1123134
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.