CLDX offering history
Every offering-related filing in Celldex Therapeutics, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,000 filings back to Oct 31, 2007.
| Date | Filing | What it means | |
|---|---|---|---|
| Apr 2, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Apr 1, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 1, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 28, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 26, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 8, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 7, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 3, 2023 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Jul 15, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 12, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 6, 2020 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Jun 17, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 15, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 15, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 15, 2020 | S-3MEF → | REGISTERED | S-3MEF registration — capacity to sell shares, not a sale yet |
| Jun 12, 2020 | S-3/A → | REGISTERED | S-3/A registration — capacity to sell shares, not a sale yet |
| Jun 12, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 12, 2020 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Mar 27, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Dec 6, 2019 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Nov 9, 2017 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 14, 2017 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Feb 14, 2017 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Feb 13, 2017 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Feb 13, 2017 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Feb 9, 2017 | S-3/A → | REGISTERED | S-3/A registration — capacity to sell shares, not a sale yet |
| Feb 9, 2017 | S-3/A → | REGISTERED | S-3/A registration — capacity to sell shares, not a sale yet |
| Jan 26, 2017 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Dec 2, 2016 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Nov 29, 2016 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Nov 1, 2016 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| May 19, 2016 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 26, 2015 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 24, 2015 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 6, 2014 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Oct 20, 2014 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Dec 5, 2013 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Dec 3, 2013 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Dec 3, 2013 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 6, 2013 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
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.
CLDX offering FAQ
When did CLDX last execute an offering?
Per SEC filings, Celldex Therapeutics, Inc.'s most recent priced offering document is a 424B5 filed 2026-04-02. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did CLDX last announce or register an offering?
The most recent registration is a S-3ASR filed 2023-11-03. 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.
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