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 |
|---|---|---|---|
| 3 | Initial insider ownership | Mar 16, 2026 | Mar 16, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| 3 | Initial insider ownership | Mar 13, 2026 | Mar 13, 2026 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 28, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Mar 21, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2017 | — |
Showing 15 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.