AC Immune SA SEC filings ACIU
AC Immune SA has 313 filings in SEC EDGAR's recent list, going back to Aug 28, 2015. Its latest annual report, Form 20-F, was filed on Mar 13, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Nov 4, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 3/A | Form 3/a | Oct 9, 2026 | Oct 2, 2026 |
| 3 | Initial insider ownership | Oct 9, 2026 | Oct 2, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 15, 2026 |
| 144 | Notice of proposed sale | May 15, 2026 | — |
| 4/A | Primary document | Apr 16, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | Apr 16, 2026 | Apr 15, 2026 |
| 144 | Notice of proposed sale | Apr 15, 2026 | — |
| 3 | Initial insider ownership | Apr 1, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 20, 2026 | Mar 20, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 144 | Notice of proposed sale | Jan 15, 2026 | — |
| 144 | Notice of proposed sale | Oct 3, 2025 | — |
| 144 | Notice of proposed sale | Sep 12, 2025 | — |
| 144 | Notice of proposed sale | Jul 24, 2025 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 144 | Notice of proposed sale | Sep 27, 2024 | — |
| 144 | Notice of proposed sale | Sep 18, 2024 | — |
| 144 | Notice of proposed sale | May 16, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| 144 | Notice of proposed sale | Dec 28, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 19, 2023 | — |
| 144 | Notice of proposed sale | Dec 15, 2023 | — |
| 144 | Notice of proposed sale | Dec 11, 2023 | — |
| 144 | Notice of proposed sale | Dec 6, 2023 | — |
| 144 | Notice of proposed sale | Aug 22, 2023 | — |
| 144 | Notice of proposed sale | Aug 21, 2023 | — |
| 144 | Notice of proposed sale | Aug 17, 2023 | — |
| 144 | Notice of proposed sale | Aug 9, 2023 | — |
| 144 | Notice of proposed sale | Aug 8, 2023 | — |
| 144 | Notice of proposed sale | Jul 24, 2023 | — |
| 144 | Notice of proposed sale | Jul 21, 2023 | — |
| 144 | Notice of proposed sale | Jul 18, 2023 | — |
| 144 | Notice of proposed sale | Jul 13, 2023 | — |
| 144 | Notice of proposed sale | Jul 12, 2023 | — |
| 144 | Notice of proposed sale | Jul 10, 2023 | — |
| 144 | Notice of proposed sale | Jul 7, 2023 | — |
| 144 | Notice of proposed sale | Jul 3, 2023 | — |
| 144 | Notice of proposed sale | Jun 30, 2023 | — |
| 144 | Notice of proposed sale | Jun 30, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 27, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Aug 5, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Jan 22, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 14, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 16, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 21, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 4, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2017 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2017 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2017 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2017 | — |
Showing 77 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- ACIU (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Switzerland
- Headquarters
- 1015 Lausanne, Switzerland
- SEC filer status
- Accelerated filer
- SEC CIK
- 1651625
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.