PTCT offering history
Every offering-related filing in PTC THERAPEUTICS, INC.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,001 filings back to Mar 2, 2017.
| Date | Filing | What it means | |
|---|---|---|---|
| Jun 18, 2026 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| May 5, 2023 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Dec 16, 2022 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Oct 27, 2022 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Aug 21, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 11, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 10, 2020 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Jun 19, 2020 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Jun 4, 2020 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| May 7, 2020 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| May 6, 2020 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Apr 30, 2020 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Oct 30, 2019 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Sep 20, 2019 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Sep 19, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 18, 2019 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Sep 17, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 7, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 27, 2019 | RW → | WITHDRAWN | Registration withdrawn |
| Jan 24, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jan 22, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 24, 2018 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Aug 24, 2018 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Jul 19, 2018 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 29, 2018 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 27, 2018 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 24, 2017 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Apr 20, 2017 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 16, 2017 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
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.
PTCT offering FAQ
When did PTCT last execute an offering?
Per SEC filings, PTC THERAPEUTICS, INC.'s most recent priced offering document is a 8-K filed 2026-06-18. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did PTCT last announce or register an offering?
The most recent registration is a S-3ASR filed 2023-05-05. 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.