ACIU offering history
Every offering-related filing in AC Immune SA’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 306 filings back to Aug 28, 2015.
| Date | Filing | What it means | |
|---|---|---|---|
| Aug 6, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 31, 2024 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Jul 26, 2024 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| Mar 14, 2024 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Dec 15, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 19, 2022 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 5, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 5, 2021 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Apr 28, 2021 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Nov 5, 2020 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Oct 23, 2020 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Sep 8, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 7, 2018 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Aug 24, 2018 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Jul 20, 2018 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 19, 2018 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 17, 2018 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 8, 2018 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| May 25, 2018 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| May 4, 2018 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Sep 23, 2016 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Sep 22, 2016 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Sep 22, 2016 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Sep 21, 2016 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Sep 21, 2016 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Sep 16, 2016 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Sep 16, 2016 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Sep 13, 2016 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Sep 7, 2016 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Jul 11, 2016 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Jun 15, 2016 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| May 31, 2016 | F-1 → | REGISTERED | F-1 registration — capacity to sell shares, not a sale yet |
Two honest limits. (1) A 424B takedown can price shares or notes— EDGAR’s metadata doesn’t say which, so open the document: large investment-grade filers use these mostly for bond deals (no dilution), small-caps mostly for shares. (2) At-the-market (ATM) programs sell shares gradually and individual sales are not separately filed — the visible footprint is the enabling shelf and its 424B5; actual ATM share counts surface later in the 10-Q/10-K share count. Educational information from public filings, not investment advice.
ACIU offering FAQ
When did ACIU last execute an offering?
Per SEC filings, AC Immune SA's most recent priced offering document is a 424B5 filed 2024-08-06. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did ACIU last announce or register an offering?
The most recent registration is a F-3/A filed 2024-07-26. A registration is capacity to sell shares — not a sale.
Does an offering always mean dilution?
Registered direct offerings and shelf takedowns issue new shares and dilute existing holders. Resale registrations (424B3/B7) let existing holders sell and do not create new shares. Secondary sales by insiders also do not dilute. Each row here is labeled with what it is.