Delcath Systems, Inc. SEC filings DCTH
Delcath Systems, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Oct 13, 2011. Its latest annual report, Form ARS, was filed on Apr 2, 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 Aug 14, 2026 (bylaw or fiscal year change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 27, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 19, 2026 | — |
| 4 | Insider transaction | Oct 14, 2026 | Oct 13, 2026 |
| S-8 | Employee stock plan registration | Aug 14, 2026 | — |
| 8-K |
Current report
Bylaw or fiscal year change
|
Aug 14, 2026 | Aug 12, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 28, 2026 | — |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 14, 2026 | May 13, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 27, 2026 | — |
| ARS | Annual report to shareholders | Apr 2, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 2, 2026 | — |
| DEF 14A | Proxy statement | Apr 2, 2026 | May 13, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 20, 2026 | — |
| 4 | Insider transaction | Mar 6, 2026 | Mar 6, 2026 |
| 8-K |
Current report
Other events
|
Mar 3, 2026 | Mar 3, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 26, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 17, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 10, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Jan 12, 2026 | Jan 9, 2026 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 21, 2025 |
| 8-K |
Current report
Other events
|
Nov 20, 2025 | Nov 19, 2025 |
| 4 | Insider transaction | Nov 13, 2025 | Nov 11, 2025 |
| 10-Q | Quarterly report | Nov 4, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2025 | Nov 4, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Oct 20, 2025 | Oct 18, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 17, 2025 | — |
| S-8 | Employee stock plan registration | Aug 15, 2025 | — |
| 8-K |
Current report
Bylaw or fiscal year change
|
Aug 15, 2025 | Aug 12, 2025 |
| 10-Q | Quarterly report | Aug 6, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2025 | Aug 6, 2025 |
| 4 | Insider transaction | Jun 13, 2025 | Jun 12, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 22, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 16, 2025 | May 15, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 12, 2025 | — |
| 4 | Insider transaction | May 9, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 9, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 9, 2025 | May 5, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| ARS | Annual report to shareholders | Apr 1, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 1, 2025 | — |
| DEF 14A | Proxy statement | Apr 1, 2025 | May 15, 2025 |
| 8-K |
Current report
Auditor change
|
Mar 21, 2025 | Mar 18, 2025 |
| 10-K | Annual report | Mar 6, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 6, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 7, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 27, 2025 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Jan 13, 2025 | Jan 13, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Dec 30, 2024 | Dec 23, 2024 |
| 4 | Insider transaction | Dec 27, 2024 | Dec 24, 2024 |
| 4 | Insider transaction | Dec 26, 2024 | Dec 24, 2024 |
| 4 | Insider transaction | Dec 26, 2024 | Dec 24, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 14, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 8, 2024 | — |
| 10-Q | Quarterly report | Nov 8, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 1, 2024 | Oct 30, 2024 |
| 4 | Insider transaction | Nov 1, 2024 | Oct 30, 2024 |
| 4 | Insider transaction | Nov 1, 2024 | Oct 30, 2024 |
| 4 | Insider transaction | Oct 23, 2024 | Oct 22, 2024 |
| 8-K |
Current report
Results of operations, Other events
|
Oct 17, 2024 | Oct 17, 2024 |
| 424B3 | Prospectus | Sep 26, 2024 | — |
| 424B3 | Prospectus | Sep 26, 2024 | — |
| EFFECT | Filing | Sep 25, 2024 | — |
| EFFECT | Filing | Sep 25, 2024 | — |
| POS AM | Filing | Sep 18, 2024 | — |
| POS AM | Filing | Sep 18, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 29, 2024 | Aug 28, 2024 |
| 8-K |
Current report
Other events
|
Aug 28, 2024 | Aug 26, 2024 |
| EFFECT | Filing | Aug 5, 2024 | — |
| 10-Q | Quarterly report | Aug 5, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2024 | Aug 5, 2024 |
| CORRESP | Letter to the SEC | Aug 1, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Jul 19, 2024 | Jul 16, 2024 |
| 144 | Notice of proposed sale | Jul 9, 2024 | — |
| 8-K |
Current report
Listing notice
|
Jul 9, 2024 | Jul 8, 2024 |
| UPLOAD | Letter from the SEC | Jul 3, 2024 | — |
| S-3 | Shelf registration | Jun 28, 2024 | — |
| S-8 | Employee stock plan registration | Jun 28, 2024 | — |
| 8-K |
Current report
Listing notice, Officer or director change, Shareholder vote results
|
May 29, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 3 | Initial insider ownership | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | May 17, 2024 | — |
| 4/A | Primary document | May 16, 2024 | Apr 18, 2024 |
| 4/A | Primary document | May 16, 2024 | Apr 18, 2024 |
| 4/A | Primary document | May 16, 2024 | Apr 18, 2024 |
| 4 | Insider transaction | May 16, 2024 | Apr 18, 2024 |
| 4 | Insider transaction | May 16, 2024 | Apr 18, 2024 |
| 4 | Insider transaction | May 16, 2024 | Apr 18, 2024 |
| 10-Q | Quarterly report | May 14, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 14, 2024 | May 14, 2024 |
| EFFECT | Filing | May 9, 2024 | — |
| 424B3 | Prospectus | May 9, 2024 | — |
| CORRESP | Letter to the SEC | May 8, 2024 | — |
| S-3/A | Filing | May 8, 2024 | — |
| UPLOAD | Letter from the SEC | May 6, 2024 | — |
| S-3 | Shelf registration | Apr 29, 2024 | — |
| 8-K |
Current report
Material agreement
|
Apr 26, 2024 | Apr 22, 2024 |
| DEFA14A | Additional proxy material | Apr 12, 2024 | — |
| ARS | Annual report to shareholders | Apr 12, 2024 | Dec 31, 2023 |
| DEF 14A | Proxy statement | Apr 12, 2024 | May 23, 2024 |
| D | Filing | Mar 26, 2024 | — |
| 10-K | Annual report | Mar 26, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 26, 2024 | Mar 26, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 25, 2024 | — |
| 4 | Insider transaction | Mar 20, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 20, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 20, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 20, 2024 | Mar 18, 2024 |
| 3 | Initial insider ownership | Mar 20, 2024 | Mar 18, 2024 |
| 4 | Insider transaction | Mar 19, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 19, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 19, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 19, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 19, 2024 | Mar 19, 2024 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Mar 19, 2024 | Mar 14, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 19, 2024 | Mar 18, 2024 |
| 4 | Insider transaction | Feb 20, 2024 | Feb 8, 2023 |
| 4 | Insider transaction | Feb 14, 2024 | Feb 12, 2024 |
| 4 | Insider transaction | Feb 14, 2024 | Feb 12, 2024 |
| 4 | Insider transaction | Feb 14, 2024 | Feb 12, 2024 |
| 4 | Insider transaction | Feb 14, 2024 | Feb 12, 2024 |
| 4 | Insider transaction | Feb 14, 2024 | Feb 12, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 14, 2024 | Feb 9, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 2, 2024 | — |
| 8-K |
Current report
Other events
|
Jan 31, 2024 | Jan 31, 2024 |
| 4 | Insider transaction | Jan 26, 2024 | Feb 8, 2023 |
| 4 | Insider transaction | Jan 26, 2024 | Feb 8, 2023 |
| 4 | Insider transaction | Jan 26, 2024 | Feb 8, 2023 |
| 4 | Insider transaction | Jan 26, 2024 | Feb 8, 2023 |
| 4 | Insider transaction | Jan 26, 2024 | Feb 8, 2023 |
| SC 13G | Ownership over 5% (passive) | Jan 9, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 8, 2024 | Jan 5, 2024 |
| S-8 | Employee stock plan registration | Dec 15, 2023 | — |
| 4 | Insider transaction | Dec 14, 2023 | Dec 12, 2023 |
| 4 | Insider transaction | Dec 11, 2023 | Dec 8, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 28, 2023 | — |
| 4 | Insider transaction | Nov 21, 2023 | Nov 17, 2023 |
| 4 | Insider transaction | Nov 21, 2023 | Nov 17, 2023 |
| 4 | Insider transaction | Nov 20, 2023 | Nov 16, 2023 |
| 4 | Insider transaction | Nov 20, 2023 | Nov 16, 2023 |
| 10-Q | Quarterly report | Nov 13, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2023 | Nov 13, 2023 |
| 4 | Insider transaction | Oct 17, 2023 | Oct 13, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 6, 2023 | Sep 6, 2023 |
| 424B3 | Prospectus | Sep 1, 2023 | — |
| 4 | Insider transaction | Aug 23, 2023 | Aug 21, 2023 |
| 4 | Insider transaction | Aug 22, 2023 | Aug 21, 2023 |
| 4 | Insider transaction | Aug 21, 2023 | Aug 18, 2023 |
| SC 13G | Ownership over 5% (passive) | Aug 16, 2023 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Aug 15, 2023 | Aug 14, 2023 |
| 10-Q | Quarterly report | Aug 9, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2023 | Aug 9, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 4, 2023 | Aug 4, 2023 |
| EFFECT | Filing | Jun 28, 2023 | — |
| 424B3 | Prospectus | Jun 28, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Jun 26, 2023 | — |
| CORRESP | Letter to the SEC | Jun 26, 2023 | — |
| 4 | Insider transaction | Jun 22, 2023 | Jun 12, 2023 |
| 4 | Insider transaction | Jun 22, 2023 | Jun 12, 2023 |
| SC 13G | Ownership over 5% (passive) | Jun 22, 2023 | — |
| 4 | Insider transaction | Jun 22, 2023 | Jun 12, 2023 |
| SC 13G | Ownership over 5% (passive) | Jun 22, 2023 | — |
Showing 200 filings, the most recent 200. 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
- Surgical & Medical Instruments & Apparatus (SIC 3841)
- Listed as
- DCTH (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Queensbury, NY
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 872912
- Former names
- DELCATH SYSTEMS, INC. (until Oct 27, 2026); DELCATH SYSTEMS INC (until Apr 22, 2013)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.