RYTM offering history
Every offering-related filing in RHYTHM PHARMACEUTICALS, INC.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 826 filings back to Aug 12, 2015.
| Date | Filing | What it means | |
|---|---|---|---|
| Feb 26, 2026 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Jul 10, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 9, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 10, 2024 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Apr 1, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Feb 29, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jan 4, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 2, 2023 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Sep 15, 2022 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 14, 2022 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 15, 2021 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Nov 2, 2021 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Feb 5, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 3, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Oct 16, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Oct 15, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 9, 2018 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Jun 21, 2018 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Jun 20, 2018 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Jun 20, 2018 | S-1MEF → | REGISTERED | S-1MEF registration — capacity to sell shares, not a sale yet |
| Jun 20, 2018 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Jun 18, 2018 | S-1 → | REGISTERED | S-1 registration — capacity to sell shares, not a sale yet |
| Oct 5, 2017 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Oct 4, 2017 | S-1MEF → | REGISTERED | S-1MEF registration — capacity to sell shares, not a sale yet |
| Oct 4, 2017 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Sep 25, 2017 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Sep 5, 2017 | S-1 → | REGISTERED | S-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.
RYTM offering FAQ
When did RYTM last execute an offering?
Per SEC filings, RHYTHM PHARMACEUTICALS, INC.'s most recent priced offering document is a 424B5 filed 2025-07-10. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did RYTM last announce or register an offering?
The most recent registration is a S-3ASR filed 2026-02-26. 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.