CMPS offering history
Every offering-related filing in COMPASS Pathways plc’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 341 filings back to Jul 2, 2020.
| Date | Filing | What it means | |
|---|---|---|---|
| Aug 5, 2026 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Feb 19, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 17, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 8, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 7, 2025 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Feb 27, 2025 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Jan 10, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Oct 18, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Oct 17, 2024 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Oct 7, 2024 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Sep 19, 2023 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Sep 18, 2023 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Sep 8, 2023 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Aug 16, 2023 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Jul 5, 2023 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| May 6, 2022 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 3, 2022 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Oct 8, 2021 | F-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Apr 30, 2021 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Apr 29, 2021 | F-1MEF → | REGISTERED | F-1MEF registration — capacity to sell shares, not a sale yet |
| Apr 29, 2021 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Apr 28, 2021 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Apr 27, 2021 | F-1 → | REGISTERED | F-1 registration — capacity to sell shares, not a sale yet |
| Sep 21, 2020 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Sep 17, 2020 | F-1MEF → | REGISTERED | F-1MEF registration — capacity to sell shares, not a sale yet |
| Sep 17, 2020 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Sep 17, 2020 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Sep 14, 2020 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Aug 28, 2020 | 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.
CMPS offering FAQ
When did CMPS last execute an offering?
Per SEC filings, COMPASS Pathways plc's most recent priced offering document is a 424B5 filed 2026-02-19. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did CMPS last announce or register an offering?
The most recent registration is a S-3ASR filed 2026-08-05. 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.