Celldex Therapeutics, Inc. SEC filings CLDX
Celldex Therapeutics, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Oct 31, 2007. Its latest annual report, Form ARS, was filed on Apr 29, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 22, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| S-8 | Employee stock plan registration | Jun 26, 2026 | — |
| 424B5 | Prospectus supplement | Apr 2, 2026 | — |
| 424B5 | Prospectus supplement | Apr 1, 2026 | — |
| S-8 | Employee stock plan registration | Jun 6, 2025 | — |
| S-8 | Employee stock plan registration | Jun 14, 2024 | — |
| 424B5 | Prospectus supplement | Mar 1, 2024 | — |
| 424B5 | Prospectus supplement | Feb 28, 2024 | — |
| 424B5 | Prospectus supplement | Feb 26, 2024 | — |
| 424B5 | Prospectus supplement | Nov 8, 2023 | — |
| 424B5 | Prospectus supplement | Nov 7, 2023 | — |
| S-3ASR | Automatic shelf registration | Nov 3, 2023 | — |
| S-8 | Employee stock plan registration | Jun 21, 2023 | — |
| 424B5 | Prospectus supplement | Jul 15, 2021 | — |
| 424B5 | Prospectus supplement | Jul 12, 2021 | — |
| S-8 | Employee stock plan registration | Jun 16, 2021 | — |
| S-3ASR | Automatic shelf registration | Nov 6, 2020 | — |
| S-8 | Employee stock plan registration | Jun 26, 2020 | — |
| 424B5 | Prospectus supplement | Jun 17, 2020 | — |
| S-3MEF | Filing | Jun 15, 2020 | — |
| 424B5 | Prospectus supplement | Jun 15, 2020 | — |
| 424B5 | Prospectus supplement | Jun 15, 2020 | — |
| 424B5 | Prospectus supplement | Jun 12, 2020 | — |
| S-3/A | Form s-3/a | Jun 12, 2020 | — |
| 424B5 | Prospectus supplement | Mar 27, 2020 | — |
| S-3 | Shelf registration | Dec 6, 2019 | — |
| S-8 | Employee stock plan registration | Jun 21, 2019 | — |
| S-8 | Employee stock plan registration | Jun 21, 2019 | — |
| 424B5 | Prospectus supplement | Nov 9, 2017 | — |
| S-8 | Employee stock plan registration | Aug 10, 2017 | — |
| S-8 | Employee stock plan registration | Aug 10, 2017 | — |
| 424B3 | Prospectus | Feb 14, 2017 | — |
| 424B3 | Prospectus | Feb 14, 2017 | — |
| S-3/A | Filing | Feb 9, 2017 | — |
| S-3/A | Filing | Feb 9, 2017 | — |
| S-3 | Shelf registration | Jan 26, 2017 | — |
| S-3 | Shelf registration | Dec 2, 2016 | — |
| 424B5 | Prospectus supplement | May 19, 2016 | — |
| S-8 | Employee stock plan registration | Jul 16, 2015 | — |
| 424B5 | Prospectus supplement | Feb 26, 2015 | — |
| 424B5 | Prospectus supplement | Feb 24, 2015 | — |
| 424B5 | Prospectus supplement | Nov 6, 2014 | — |
| 424B5 | Prospectus supplement | Dec 5, 2013 | — |
| 424B5 | Prospectus supplement | Dec 3, 2013 | — |
| S-3ASR | Automatic shelf registration | Dec 3, 2013 | — |
| S-8 | Employee stock plan registration | Jun 14, 2013 | — |
| 424B5 | Prospectus supplement | Feb 6, 2013 | — |
| 424B5 | Prospectus supplement | Feb 4, 2013 | — |
| S-3/A | Filing | Jan 4, 2013 | — |
| S-3 | Shelf registration | Dec 21, 2012 | — |
| 424B5 | Prospectus supplement | Sep 24, 2012 | — |
| S-8 | Employee stock plan registration | Jun 15, 2012 | — |
| 424B5 | Prospectus supplement | Feb 24, 2012 | — |
| 424B5 | Prospectus supplement | Feb 23, 2012 | — |
| 424B5 | Prospectus supplement | May 18, 2011 | — |
| 424B5 | Prospectus supplement | May 17, 2011 | — |
| 424B5 | Prospectus supplement | Jan 6, 2011 | — |
| S-3 | Shelf registration | Apr 5, 2010 | — |
| S-8 POS | Filing | Jan 13, 2010 | — |
| S-8 POS | Filing | Jan 13, 2010 | — |
| 424B2 | Prospectus | Oct 30, 2009 | — |
| S-3/A | Filing | Oct 28, 2009 | — |
| S-3 | Shelf registration | Oct 21, 2009 | — |
| S-8 | Employee stock plan registration | Oct 9, 2009 | — |
| 424B3 | Prospectus | Aug 28, 2009 | — |
| S-4/A | Filing | Aug 26, 2009 | — |
| S-4/A | Filing | Aug 18, 2009 | — |
| S-4/A | Filing | Aug 4, 2009 | — |
| S-4 | Registration for a merger or exchange | Jun 26, 2009 | — |
| S-8 | Employee stock plan registration | Jun 18, 2008 | — |
| S-4/A | Filing | Jan 22, 2008 | — |
| S-4/A | Filing | Jan 18, 2008 | — |
| S-4/A | Filing | Jan 10, 2008 | — |
| S-4 | Registration for a merger or exchange | Dec 21, 2007 | — |
Showing 73 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- In Vitro & In Vivo Diagnostic Substances (SIC 2835)
- Listed as
- CLDX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Hampton, NJ
- SEC filer status
- Large accelerated filer
- SEC CIK
- 744218
- Former names
- AVANT IMMUNOTHERAPEUTICS INC (until Sep 29, 2008); T CELL SCIENCES INC (until Aug 21, 1998)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.