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 |
|---|---|---|---|
| 6-K | Current report (foreign issuer) | Nov 4, 2026 | Nov 3, 2026 |
| 3/A | Form 3/a | Oct 9, 2026 | Oct 2, 2026 |
| 3 | Initial insider ownership | Oct 9, 2026 | Oct 2, 2026 |
| 6-K | Current report (foreign issuer) | Oct 2, 2026 | Oct 2, 2026 |
| 6-K | Current report (foreign issuer) | Sep 23, 2026 | Sep 23, 2026 |
| 6-K | Current report (foreign issuer) | Sep 3, 2026 | Sep 3, 2026 |
| 6-K | Current report (foreign issuer) | Aug 20, 2026 | Aug 20, 2026 |
| 6-K | Current report (foreign issuer) | Aug 11, 2026 | Aug 11, 2026 |
| 6-K | Current report (foreign issuer) | Aug 5, 2026 | Jun 30, 2026 |
| 6-K | Current report (foreign issuer) | Jun 30, 2026 | Jun 30, 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 |
| 6-K | Current report (foreign issuer) | Jun 11, 2026 | Jun 11, 2026 |
| 6-K | Current report (foreign issuer) | Jun 11, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 15, 2026 |
| 144 | Notice of proposed sale | May 15, 2026 | — |
| 6-K | Current report (foreign issuer) | May 15, 2026 | May 15, 2026 |
| 6-K | Current report (foreign issuer) | May 12, 2026 | May 12, 2026 |
| 6-K | Current report (foreign issuer) | Apr 30, 2026 | Apr 30, 2026 |
| 6-K | Current report (foreign issuer) | Apr 30, 2026 | Apr 30, 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 | — |
| 6-K | Current report (foreign issuer) | Apr 7, 2026 | Apr 2, 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 |
| 6-K | Current report (foreign issuer) | Mar 13, 2026 | Mar 13, 2026 |
| 20-F | Annual report (foreign issuer) | Mar 13, 2026 | Dec 31, 2025 |
| 6-K | Current report (foreign issuer) | Feb 24, 2026 | Feb 24, 2026 |
| 6-K | Current report (foreign issuer) | Feb 17, 2026 | Feb 17, 2026 |
| 144 | Notice of proposed sale | Jan 15, 2026 | — |
| 6-K | Current report (foreign issuer) | Dec 11, 2025 | Dec 11, 2025 |
| 6-K | Current report (foreign issuer) | Nov 4, 2025 | Nov 4, 2025 |
| 144 | Notice of proposed sale | Oct 3, 2025 | — |
| 144 | Notice of proposed sale | Sep 12, 2025 | — |
| 6-K | Current report (foreign issuer) | Sep 4, 2025 | Sep 4, 2025 |
| 6-K | Current report (foreign issuer) | Aug 5, 2025 | Jun 30, 2025 |
| 144 | Notice of proposed sale | Jul 24, 2025 | — |
| 6-K | Current report (foreign issuer) | Jun 20, 2025 | Jun 20, 2025 |
| 6-K | Current report (foreign issuer) | Jun 11, 2025 | Jun 11, 2025 |
| 6-K | Current report (foreign issuer) | May 19, 2025 | May 19, 2025 |
| 6-K | Current report (foreign issuer) | Apr 30, 2025 | Apr 30, 2025 |
| 6-K | Current report (foreign issuer) | Mar 13, 2025 | Mar 13, 2025 |
| 20-F | Annual report (foreign issuer) | Mar 13, 2025 | Dec 31, 2024 |
| 6-K | Current report (foreign issuer) | Dec 18, 2024 | Dec 18, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 13, 2024 | — |
| 6-K | Current report (foreign issuer) | Dec 10, 2024 | Dec 10, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 6-K | Current report (foreign issuer) | Nov 14, 2024 | Nov 14, 2024 |
| 6-K | Current report (foreign issuer) | Nov 5, 2024 | Nov 5, 2024 |
| 144 | Notice of proposed sale | Sep 27, 2024 | — |
| 6-K | Current report (foreign issuer) | Sep 19, 2024 | Sep 19, 2024 |
| 144 | Notice of proposed sale | Sep 18, 2024 | — |
| 6-K | Current report (foreign issuer) | Sep 17, 2024 | Sep 17, 2024 |
| 6-K | Current report (foreign issuer) | Aug 28, 2024 | Aug 28, 2024 |
| 424B5 | Prospectus supplement | Aug 6, 2024 | — |
| 6-K | Current report (foreign issuer) | Aug 6, 2024 | Aug 6, 2024 |
| 6-K | Current report (foreign issuer) | Aug 6, 2024 | Jun 30, 2024 |
| EFFECT | Filing | Jul 31, 2024 | — |
| 6-K | Current report (foreign issuer) | Jul 31, 2024 | Jul 31, 2024 |
| CORRESP | Letter to the SEC | Jul 29, 2024 | — |
| F-3/A | Form f-3/a | Jul 26, 2024 | — |
| 6-K | Current report (foreign issuer) | Jul 25, 2024 | Jul 25, 2024 |
| 6-K | Current report (foreign issuer) | Jun 20, 2024 | Jun 20, 2024 |
| 6-K | Current report (foreign issuer) | May 21, 2024 | May 21, 2024 |
| 144 | Notice of proposed sale | May 16, 2024 | — |
| 6-K | Current report (foreign issuer) | May 13, 2024 | May 13, 2024 |
| 6-K | Current report (foreign issuer) | May 13, 2024 | May 13, 2024 |
| UPLOAD | Letter from the SEC | Mar 19, 2024 | — |
| F-3 | Shelf registration (foreign issuer) | Mar 14, 2024 | — |
| 6-K | Current report (foreign issuer) | Mar 14, 2024 | Mar 14, 2024 |
| 20-F | Annual report (foreign issuer) | Mar 14, 2024 | Dec 31, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| 6-K | Current report (foreign issuer) | Jan 22, 2024 | Jan 22, 2024 |
| 6-K | Current report (foreign issuer) | Jan 3, 2024 | Jan 3, 2024 |
| 144 | Notice of proposed sale | Dec 28, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 19, 2023 | — |
| 6-K | Current report (foreign issuer) | Dec 19, 2023 | Dec 19, 2023 |
| 424B5 | Prospectus supplement | Dec 15, 2023 | — |
| 144 | Notice of proposed sale | Dec 15, 2023 | — |
| 6-K | Current report (foreign issuer) | Dec 15, 2023 | Dec 14, 2023 |
| 144 | Notice of proposed sale | Dec 11, 2023 | — |
| 144 | Notice of proposed sale | Dec 6, 2023 | — |
| 6-K | Current report (foreign issuer) | Dec 1, 2023 | Dec 1, 2023 |
| 6-K | Current report (foreign issuer) | Nov 3, 2023 | Nov 3, 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 | — |
| 6-K | Current report (foreign issuer) | Aug 4, 2023 | Jun 30, 2023 |
| 6-K | Current report (foreign issuer) | Jul 26, 2023 | Jul 26, 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 | — |
| 6-K | Current report (foreign issuer) | Jun 27, 2023 | Jun 27, 2023 |
| 6-K | Current report (foreign issuer) | Jun 26, 2023 | Jun 26, 2023 |
| 6-K | Current report (foreign issuer) | May 24, 2023 | May 24, 2023 |
| 6-K | Current report (foreign issuer) | Apr 28, 2023 | Apr 28, 2023 |
| 6-K | Current report (foreign issuer) | Mar 16, 2023 | Mar 16, 2023 |
| 20-F | Annual report (foreign issuer) | Mar 16, 2023 | Dec 31, 2022 |
| 6-K | Current report (foreign issuer) | Mar 10, 2023 | Mar 10, 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 | — |
| 6-K | Current report (foreign issuer) | Jan 26, 2023 | Jan 26, 2023 |
| 6-K | Current report (foreign issuer) | Nov 30, 2022 | Nov 30, 2022 |
| 6-K | Current report (foreign issuer) | Oct 28, 2022 | Sep 30, 2022 |
| 6-K | Current report (foreign issuer) | Sep 26, 2022 | Sep 26, 2022 |
| 6-K | Current report (foreign issuer) | Aug 2, 2022 | Aug 2, 2022 |
| 6-K | Current report (foreign issuer) | Jul 28, 2022 | Jul 28, 2022 |
| 6-K | Current report (foreign issuer) | Jun 24, 2022 | Jun 24, 2022 |
| 6-K | Current report (foreign issuer) | Jun 16, 2022 | Jun 16, 2022 |
| 6-K | Current report (foreign issuer) | May 25, 2022 | May 25, 2022 |
| 424B5 | Prospectus supplement | May 19, 2022 | — |
| 6-K | Current report (foreign issuer) | Apr 28, 2022 | Apr 28, 2022 |
| 6-K | Current report (foreign issuer) | Apr 8, 2022 | Apr 8, 2022 |
| 6-K | Current report (foreign issuer) | Mar 22, 2022 | Dec 31, 2021 |
| 20-F | Annual report (foreign issuer) | Mar 22, 2022 | Dec 31, 2021 |
| 6-K | Current report (foreign issuer) | Mar 16, 2022 | Mar 16, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| 6-K | Current report (foreign issuer) | Nov 12, 2021 | Nov 12, 2021 |
| 6-K | Current report (foreign issuer) | Nov 8, 2021 | Nov 8, 2021 |
| 6-K | Current report (foreign issuer) | Oct 29, 2021 | Oct 29, 2021 |
| 6-K | Current report (foreign issuer) | Oct 15, 2021 | Oct 15, 2021 |
| 6-K | Current report (foreign issuer) | Oct 7, 2021 | Sep 24, 2021 |
| 6-K | Current report (foreign issuer) | Aug 31, 2021 | Aug 31, 2021 |
| SC 13G | Ownership over 5% (passive) | Aug 5, 2021 | — |
| 6-K | Current report (foreign issuer) | Aug 4, 2021 | Aug 4, 2021 |
| 6-K | Current report (foreign issuer) | Jul 27, 2021 | Jul 27, 2021 |
| 6-K | Current report (foreign issuer) | Jun 25, 2021 | Jun 25, 2021 |
| 6-K | Current report (foreign issuer) | May 21, 2021 | May 21, 2021 |
| EFFECT | Filing | May 5, 2021 | — |
| 6-K | Current report (foreign issuer) | May 5, 2021 | May 5, 2021 |
| 424B5 | Prospectus supplement | May 5, 2021 | — |
| CORRESP | Letter to the SEC | May 3, 2021 | — |
| UPLOAD | Letter from the SEC | Apr 30, 2021 | — |
| F-3 | Shelf registration (foreign issuer) | Apr 28, 2021 | — |
| 6-K | Current report (foreign issuer) | Apr 28, 2021 | Apr 28, 2021 |
| 6-K | Current report (foreign issuer) | Mar 31, 2021 | Mar 31, 2021 |
| 6-K | Current report (foreign issuer) | Mar 23, 2021 | Mar 23, 2021 |
| 20-F | Annual report (foreign issuer) | Mar 23, 2021 | Dec 31, 2020 |
| 6-K | Current report (foreign issuer) | Feb 26, 2021 | Feb 26, 2021 |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| 6-K | Current report (foreign issuer) | Feb 11, 2021 | Feb 11, 2021 |
| SC 13G | Ownership over 5% (passive) | Jan 22, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 14, 2021 | — |
| 6-K/A | Form 6-k/a | Nov 23, 2020 | Nov 23, 2020 |
| 6-K | Current report (foreign issuer) | Nov 23, 2020 | Nov 20, 2020 |
| 6-K | Current report (foreign issuer) | Nov 18, 2020 | Nov 18, 2020 |
| 6-K | Current report (foreign issuer) | Nov 13, 2020 | Nov 13, 2020 |
| EFFECT | Filing | Nov 5, 2020 | — |
| CORRESP | Letter to the SEC | Nov 3, 2020 | — |
| UPLOAD | Letter from the SEC | Oct 29, 2020 | — |
| F-3 | Shelf registration (foreign issuer) | Oct 23, 2020 | — |
| 6-K | Current report (foreign issuer) | Oct 21, 2020 | Oct 21, 2020 |
| 6-K | Current report (foreign issuer) | Sep 23, 2020 | Sep 23, 2020 |
| 6-K | Current report (foreign issuer) | Sep 8, 2020 | Sep 8, 2020 |
| 424B5 | Prospectus supplement | Sep 8, 2020 | — |
| 6-K | Current report (foreign issuer) | Aug 5, 2020 | Aug 5, 2020 |
| 6-K | Current report (foreign issuer) | Jul 16, 2020 | Jul 16, 2020 |
| 6-K | Current report (foreign issuer) | Jun 26, 2020 | Jun 26, 2020 |
| 6-K | Current report (foreign issuer) | May 22, 2020 | May 22, 2020 |
| 6-K | Current report (foreign issuer) | May 4, 2020 | May 4, 2020 |
| 6-K | Current report (foreign issuer) | Apr 2, 2020 | Apr 2, 2020 |
| 6-K | Current report (foreign issuer) | Mar 30, 2020 | Mar 30, 2020 |
| 20-F | Annual report (foreign issuer) | Mar 30, 2020 | Dec 31, 2019 |
| 6-K | Current report (foreign issuer) | Mar 23, 2020 | Mar 23, 2020 |
| UPLOAD | Letter from the SEC | Feb 25, 2020 | — |
| 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 | — |
| CORRESP | Letter to the SEC | Jan 17, 2020 | — |
| UPLOAD | Letter from the SEC | Jan 6, 2020 | — |
| CORRESP | Letter to the SEC | Dec 20, 2019 | — |
| UPLOAD | Letter from the SEC | Dec 4, 2019 | — |
| 6-K | Current report (foreign issuer) | Nov 13, 2019 | Nov 13, 2019 |
| 6-K | Current report (foreign issuer) | Nov 6, 2019 | Nov 6, 2019 |
| 6-K | Current report (foreign issuer) | Sep 20, 2019 | Sep 20, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 16, 2019 | — |
| 6-K | Current report (foreign issuer) | Aug 14, 2019 | Aug 14, 2019 |
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
- 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.