Lucid Diagnostics Inc. SEC filings LUCD
Lucid Diagnostics Inc. has 281 filings in SEC EDGAR's recent list, going back to Jan 21, 2020. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 22, 2026 (unregistered share sale, change to shareholder rights, bylaw or fiscal year change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change
|
Oct 22, 2026 | Oct 21, 2026 |
| 8-K |
Current report
Listing notice
|
Oct 16, 2026 | Oct 12, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 22, 2026 | Sep 22, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 13, 2026 | Aug 13, 2026 |
| 10-Q | Quarterly report | Aug 12, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jun 24, 2026 | Jun 24, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 14, 2026 | May 14, 2026 |
| 10-Q | Quarterly report | May 13, 2026 | Mar 31, 2026 |
| DEFA14A | Additional proxy material | Apr 30, 2026 | — |
| ARS | Annual report to shareholders | Apr 30, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 30, 2026 | Apr 30, 2026 |
| 3/A | Amended initial statement of beneficial ownership of securities | Apr 24, 2026 | Mar 23, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Apr 24, 2026 | Apr 24, 2026 |
| 424B5 | Prospectus supplement | Apr 23, 2026 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Apr 23, 2026 | Apr 23, 2026 |
| PRE 14A | Preliminary proxy statement | Apr 20, 2026 | Apr 20, 2026 |
| 3 | Initial insider ownership | Apr 13, 2026 | Mar 23, 2026 |
| S-8 | Employee stock plan registration | Apr 3, 2026 | — |
| S-8 | Employee stock plan registration | Apr 3, 2026 | — |
| EFFECT | Filing | Mar 26, 2026 | — |
| 424B5 | Prospectus supplement | Mar 26, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 26, 2026 | Mar 26, 2026 |
| S-3/A | Filing | Mar 26, 2026 | — |
| CORRESP | Letter to the SEC | Mar 25, 2026 | — |
| 10-K | Annual report | Mar 25, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 9, 2026 | — |
| S-3 | Shelf registration | Dec 5, 2025 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 12, 2025 | Nov 12, 2025 |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 10, 2025 | — |
| 4 | Insider transaction | Oct 7, 2025 | Oct 6, 2025 |
| 3 | Initial insider ownership | Oct 7, 2025 | Sep 22, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 25, 2025 | Sep 22, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 11, 2025 | Sep 11, 2025 |
| 424B5 | Prospectus supplement | Sep 10, 2025 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Sep 10, 2025 | Sep 10, 2025 |
| 424B5 | Prospectus supplement | Sep 9, 2025 | — |
| 4 | Insider transaction | Aug 22, 2025 | Aug 20, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 13, 2025 | Aug 13, 2025 |
| 10-Q | Quarterly report | Aug 12, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 18, 2025 | Jun 18, 2025 |
| 424B3 | Prospectus | Jun 3, 2025 | — |
| EFFECT | Filing | May 30, 2025 | — |
| 8-K |
Current report
Material agreement
|
May 30, 2025 | May 30, 2025 |
| 424B5 | Prospectus supplement | May 30, 2025 | — |
| CORRESP | Letter to the SEC | May 27, 2025 | — |
| UPLOAD | Letter from the SEC | May 27, 2025 | — |
| 4/A | Amended statement of changes in beneficial ownership of securities | May 23, 2025 | May 20, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 20, 2025 |
| S-3 | Shelf registration | May 22, 2025 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 14, 2025 | May 14, 2025 |
| 10-Q | Quarterly report | May 13, 2025 | Mar 31, 2025 |
| DEFA14A | Additional proxy material | Apr 30, 2025 | — |
| ARS | Annual report to shareholders | Apr 30, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Apr 30, 2025 | Apr 30, 2025 |
| 8-K |
Current report
Auditor change
|
Apr 25, 2025 | Apr 23, 2025 |
| PRE 14A | Preliminary proxy statement | Apr 18, 2025 | Apr 18, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Apr 11, 2025 | Apr 11, 2025 |
| 424B5 | Prospectus supplement | Apr 10, 2025 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Apr 10, 2025 | Apr 9, 2025 |
| 424B5 | Prospectus supplement | Apr 9, 2025 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 25, 2025 | Mar 24, 2025 |
| 10-K | Annual report | Mar 24, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Mar 5, 2025 | Mar 5, 2025 |
| 424B5 | Prospectus supplement | Mar 5, 2025 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Mar 4, 2025 | Mar 4, 2025 |
| 8-K |
Current report
Other events
|
Mar 4, 2025 | Mar 4, 2025 |
| 8-K |
Current report
Other events
|
Feb 25, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2025 | — |
| S-8 | Employee stock plan registration | Jan 31, 2025 | — |
| S-8 | Employee stock plan registration | Jan 31, 2025 | — |
| 8-K |
Current report
Other events
|
Dec 20, 2024 | Dec 19, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 12, 2024 | — |
| D | Filing | Dec 6, 2024 | — |
| 8-K |
Current report
Material agreement, Agreement ended, New debt, Unregistered share sale, Change to shareholder rights
|
Nov 29, 2024 | Nov 22, 2024 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Change to shareholder rights
|
Nov 18, 2024 | Nov 12, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 13, 2024 | Nov 13, 2024 |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt, Unregistered share sale, Change to shareholder rights
|
Nov 12, 2024 | Nov 8, 2024 |
| 10-Q | Quarterly report | Aug 12, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 12, 2024 | Aug 12, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jul 24, 2024 | Jul 23, 2024 |
| 424B3 | Prospectus | Jul 19, 2024 | — |
| EFFECT | Filing | Jul 18, 2024 | — |
| CORRESP | Letter to the SEC | Jul 15, 2024 | — |
| S-3/A | Filing | Jul 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 8, 2024 | — |
| UPLOAD | Letter from the SEC | Jul 8, 2024 | — |
| S-3 | Shelf registration | Jul 1, 2024 | — |
| 8-K |
Current report
Listing notice
|
Jun 21, 2024 | Jun 21, 2024 |
| DEF 14A | Proxy statement | Jun 6, 2024 | Jun 6, 2024 |
| DEFA14A | Additional proxy material | Jun 6, 2024 | — |
| PRE 14A | Preliminary proxy statement | May 24, 2024 | May 24, 2024 |
| DEFA14A | Additional proxy material | May 24, 2024 | — |
| 8-K |
Current report
Other events
|
May 24, 2024 | May 24, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 14, 2024 | May 13, 2024 |
| 10-Q | Quarterly report | May 13, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 8, 2024 |
| 3 | Initial insider ownership | May 9, 2024 | May 6, 2024 |
| 4 | Insider transaction | May 8, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 8, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 8, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 8, 2024 | May 7, 2024 |
| 8-K |
Current report
Unregistered share sale, Change to shareholder rights, Officer or director change, Bylaw or fiscal year change, Regulation FD disclosure
|
May 7, 2024 | May 1, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
May 2, 2024 | May 2, 2024 |
| DEFA14A | Additional proxy material | Apr 29, 2024 | — |
| ARS | Annual report to shareholders | Apr 29, 2024 | Dec 31, 2023 |
| DEF 14A | Proxy statement | Apr 29, 2024 | Apr 29, 2024 |
| PRE 14A | Preliminary proxy statement | Apr 19, 2024 | Apr 18, 2024 |
| 10-K | Annual report | Mar 25, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change
|
Mar 14, 2024 | Mar 13, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 23, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 20, 2024 | Feb 15, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 20, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| S-8 | Employee stock plan registration | Feb 6, 2024 | — |
| S-8 | Employee stock plan registration | Feb 6, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 2, 2024 | — |
| 4 | Insider transaction | Jan 30, 2024 | Jan 26, 2024 |
| 8-K |
Current report
Unregistered share sale
|
Jan 30, 2024 | Jan 26, 2024 |
| 8-K |
Current report
Listing notice
|
Nov 28, 2023 | Nov 27, 2023 |
| 8-K |
Current report
Listing notice
|
Nov 24, 2023 | Nov 21, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 14, 2023 | Nov 13, 2023 |
| 10-Q | Quarterly report | Nov 13, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Officer or director change
|
Nov 13, 2023 | Nov 6, 2023 |
| D | Filing | Nov 1, 2023 | — |
| 8-K |
Current report
Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change
|
Oct 18, 2023 | Oct 17, 2023 |
| 4 | Insider transaction | Sep 27, 2023 | Sep 25, 2023 |
| 4/A | Amended statement of changes in beneficial ownership of securities | Sep 27, 2023 | Sep 20, 2023 |
| 144 | Notice of proposed sale | Sep 26, 2023 | — |
| 4 | Insider transaction | Sep 22, 2023 | Sep 20, 2023 |
| 10-Q | Quarterly report | Aug 14, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jun 21, 2023 | Jun 21, 2023 |
| EFFECT | Filing | Jun 1, 2023 | — |
| 424B3 | Prospectus | Jun 1, 2023 | — |
| CORRESP | Letter to the SEC | May 26, 2023 | — |
| UPLOAD | Letter from the SEC | May 26, 2023 | — |
| S-3 | Shelf registration | May 23, 2023 | — |
| 10-Q | Quarterly report | May 15, 2023 | Mar 31, 2023 |
| DEFA14A | Additional proxy material | May 1, 2023 | — |
| DEF 14A | Proxy statement | May 1, 2023 | May 1, 2023 |
| PRE 14A | Preliminary proxy statement | Apr 19, 2023 | Apr 19, 2023 |
| 4/A | Amended statement of changes in beneficial ownership of securities | Apr 13, 2023 | Nov 30, 2022 |
| 3 | Initial insider ownership | Apr 6, 2023 | Mar 18, 2022 |
| D | Filing | Apr 5, 2023 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 3, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Change to shareholder rights
|
Mar 24, 2023 | Mar 21, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 24, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Mar 23, 2023 | — |
| D | Filing | Mar 22, 2023 | — |
| 8-K |
Current report
Material agreement, Results of operations, New debt, Unregistered share sale, Change to shareholder rights, Regulation FD disclosure
|
Mar 14, 2023 | Mar 13, 2023 |
| 10-K | Annual report | Mar 14, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change
|
Mar 13, 2023 | Mar 7, 2023 |
| 8-K |
Current report
Agreement ended, Unregistered share sale
|
Feb 17, 2023 | Feb 14, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 16, 2023 | Feb 15, 2023 |
| S-8 | Employee stock plan registration | Feb 10, 2023 | — |
| S-8 | Employee stock plan registration | Feb 10, 2023 | — |
| 4 | Insider transaction | Feb 2, 2023 | Jan 31, 2023 |
| 4 | Insider transaction | Feb 2, 2023 | Jan 31, 2023 |
| 4 | Insider transaction | Feb 2, 2023 | Jan 31, 2023 |
| 4 | Insider transaction | Feb 2, 2023 | Jan 31, 2023 |
| 4 | Insider transaction | Feb 2, 2023 | Jan 31, 2023 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 18, 2023 | Jan 17, 2023 |
| 424B5 | Prospectus supplement | Dec 7, 2022 | — |
| EFFECT | Filing | Dec 6, 2022 | — |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 2, 2022 | — |
| 8-K |
Current report
Unregistered share sale
|
Dec 2, 2022 | Nov 30, 2022 |
| CORRESP | Letter to the SEC | Dec 1, 2022 | — |
| UPLOAD | Letter from the SEC | Dec 1, 2022 | — |
| S-3 | Shelf registration | Nov 25, 2022 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 14, 2022 | Nov 14, 2022 |
| 10-Q | Quarterly report | Nov 14, 2022 | Sep 30, 2022 |
| 4 | Insider transaction | Sep 22, 2022 | Sep 20, 2022 |
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
- LUCD (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- New York, NY
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1799011
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.