SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

LUCD

Lucid Diagnostics Inc.
NASDAQHealth Care

Latest close: 0.48 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell◆Adverse 8-K filing◇Significant stake declared (13D)●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Oct 16, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  2. Sep 22, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  3. Aug 13, 2026Material event · 8-KFiled by the company itself.Open the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record2476 flagged findings
Reported transactions (Form 4)52since Nov 30, 2022 · and 6 other holdings
Corporate events (8-K)30since Mar 24, 2023

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-05-13share offering or dilution eventrecentOpen filing ↗
    “…$16.8 million. ATM Facility On May 30, 2025, the Company entered into an “at-the-market offering” (“ATM”) for up to $25.0…”
    +1 more passage from the same document
    • “…Group LLC. In the three months ended March 31, 2026, the Company sold 4,161,747 shares through its at-the-market equity facility…”
  • 2026-05-13capital return (buybacks/dividends)recentOpen filing ↗
    “…of the Securities Act of 1933, as amended (the “Securities Act”), pursuant to Section 4(a)(2) of the Securities Act, as a…”
  • 2026-04-23share offering or dilution eventrecentOpen filing ↗
    “…utilization in routine clinical practice, consistent with previously reported clinical studies. The data are currently under peer…”
    +1 more passage from the same document
    • “…previously reported clinical studies. The data are currently under peer review for publication. Board Appointment Effective…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

Listing notice in force

The exchange has notified the company that it fails a continued-listing requirement (8-K, item 3.01 of Oct 16, 2026).

Deadline: Apr 10, 2027

  • minimum bid price · Nasdaq, rule 5550(a)(2) · notice of Oct 12, 2026 · pending · deadline Apr 10, 2027 (text and rule agree)

The other times

Of the 30 issuers that received this notice 1 to 2 years ago, within the following 365 days 16 regained compliance, 23 did a reverse split and 1 filed a Form 25 (delisting). An issuer can be in more than one group.

Measured on our own SEC documents: the cohort is the issuers whose notices we read, not the whole market. Historical distribution, not a prediction.

Open the 8-K at the SEC

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 247)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Oct 16, 268-K ↗Current report · Listing notice (8-K 3.01) new
  • Sep 22, 268-K ↗Current report · Communication to the market
  • Aug 13, 268-K ↗Current report · Results · Communication to the market
  • Aug 12, 2610-Q ↗Quarterly report
  • Jun 24, 268-K ↗Current report · Bylaws or fiscal year change · Shareholder vote results
  • May 21, 26Form 4 ↗Insider transaction
  • May 14, 268-K ↗Current report · Results · Communication to the market
  • May 13, 2610-Q ↗Quarterly report
  • Apr 30, 26DEFA14A ↗Shareholder meeting and votes
  • Apr 30, 26DEF 14A ↗Shareholder meeting and votes
  • Apr 24, 268-K ↗Current report · Communication to the market · Other events
  • Apr 24, 26Form 3/A ↗Insider transaction · amendment
  • Apr 23, 26424B5 ↗Securities offering
  • Apr 23, 268-K ↗Current report · Entered a material agreement
  • Apr 20, 26PRE 14A ↗Shareholder meeting and votes
  • Apr 13, 26Form 3 ↗Insider transaction
  • Mar 26, 26424B5 ↗Securities offering
  • Mar 26, 268-K ↗Current report · Results · Communication to the market
  • Mar 26, 26S-3/A ↗Securities offering · amendment
  • Mar 25, 26CORRESP ↗Correspondence with the SEC
  • Mar 25, 2610-K ↗Annual report
  • Insider transaction · 4 Form 4 filingsshow all 4hide

247 filings on record, the oldest from Feb 19, 20.

Listing the 25 most recent filings of the 247 on record.

8-Ks, explained

Stress4Structure35Governance9
  • Oct 16, 26StressListing notice (8-K 3.01)+1 more in the same filing8-K 3.01 ↗
  • Apr 23, 26StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • Sep 25, 25GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Sep 10, 25StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • May 30, 25StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
  • Apr 25, 25GovernanceAuditor change filing (8-K Item 4.01)+1 more in the same filing8-K 4.01 ↗
  • Structure5 material agreements entered2024 – 2025show all 5hide
    • Apr 10, 25StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
    • Mar 4, 25StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
    • Nov 29, 24StructureEntered a material agreement+5 more in the same filing8-K 1.01 ↗
    • Nov 18, 24StructureEntered a material agreement+4 more in the same filing8-K 1.01 ↗
    • Nov 12, 24StructureEntered a material agreement+5 more in the same filing8-K 1.01 ↗
  • Jun 21, 24StressListing notice (8-K 3.01)8-K 3.01 ↗
  • Structure3 sales of unregistered shares2024show all 3hide
    • May 7, 24StructureSold unregistered shares+5 more in the same filing8-K 3.02 ↗
    • Mar 14, 24StructureSold unregistered shares+3 more in the same filing8-K 3.02 ↗
    • Jan 30, 24StructureSold unregistered shares+1 more in the same filing8-K 3.02 ↗
  • Nov 28, 23StressListing notice (8-K 3.01)+1 more in the same filing8-K 3.01 ↗
  • Nov 24, 23StressListing notice (8-K 3.01)+1 more in the same filing8-K 3.01 ↗
  • Nov 13, 23GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗

2 older filings not shown · The record reaches back to Jan 20, 22.

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13D: stake and stated purpose

Filed by holders above 5% of a share class who cannot use the short form. It includes the investor's stated purpose: read it before assuming they seek influence.

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

  • Ayrton Capital LLC2.0%Dec 31, 24SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum.

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • May 20, 26Buy$245KDennis Matheis↗
  • Aug 20, 25Buy$102KDennis Matheis↗
  • May 22, 25Buy$44KDennis Matheis↗
  • May 21, 25Buy$172KDennis Matheis↗
  • May 20, 25Buy$242KDennis Matheis↗
  • Sep 26, 23Sell$15KStanley Lapidus↗
  • Sep 26, 23Sell$14KStanley Lapidus↗
  • Sep 26, 23Sell$14KStanley Lapidus↗
  • Sep 25, 23Sell$286Stanley Lapidus↗
  • Sep 21, 23Sell$144Stanley Lapidus↗
  • Sep 20, 23Sell$5KStanley Lapidus↗
  • Sep 20, 23Sell$593Stanley Lapidus↗
Stock compensation, tax and giftsshow the 28 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Feb 20, 26Compensationamount n/aMichael Adam GordonGeneral Counsel and Secretary↗
  • Feb 20, 26Compensationamount n/aShaun O'NeilPresident and COO↗
  • Feb 20, 26Compensationamount n/aDENNIS M MCGRATHChief Financial Officer↗
  • Feb 20, 26Compensationamount n/aJames L Cox↗
  • Feb 20, 26Compensationamount n/aStanley Lapidus↗
  • Feb 20, 26Compensationamount n/aJOHN R PALUMBO↗
  • Feb 20, 26Compensationamount n/aJACQUE J SOKOLOV↗
  • Feb 20, 26Compensationamount n/aRonald M Sparks↗
  • Feb 20, 26Compensationamount n/aDebra White↗
  • Feb 20, 26Compensationamount n/aDennis Matheis↗
  • Feb 20, 26Compensationamount n/aLishan AklogChief Executive Officer↗
  • Feb 20, 25Compensationamount n/aRonald M Sparks↗
  • Feb 20, 25Compensationamount n/aDebra White↗
  • Feb 20, 25Compensationamount n/aMichael Adam GordonGeneral Counsel and Secretary↗
  • Feb 20, 25Compensationamount n/aDENNIS M MCGRATHChief Financial Officer↗
  • Feb 20, 25Compensationamount n/aJames L Cox↗
  • Feb 20, 25Compensationamount n/aDennis Matheis↗
  • Feb 20, 25Compensationamount n/aStanley Lapidus↗
  • Feb 20, 25Compensationamount n/aJACQUE J SOKOLOV↗
  • Feb 20, 25Compensationamount n/aLishan AklogChief Executive Officer↗
  • Feb 20, 25Compensationamount n/aShaun O'NeilPresident and COO↗
  • May 7, 24Compensationamount n/aLishan AklogChief Executive Officer↗
  • May 7, 24Compensationamount n/aDENNIS M MCGRATHChief Financial Officer↗
  • May 7, 24Compensationamount n/aShaun O'NeilPresident and COO↗
  • May 7, 24Compensationamount n/aMichael Adam GordonGeneral Counsel and Secretary↗
  • Feb 15, 24Otheramount n/aPAVmed Inc.↗
  • Jan 26, 24Other$4.7MPAVmed Inc.↗
  • Nov 30, 22Other$2.1MPAVmed Inc.↗

The full record holds 44 transactions and goes back to Mar 18, 22.

Its sector and its market

Lucid Diagnostics Inc. among Health Care companies

The profile shows what is on record. Context and Radar place the company among those of its sector and region.

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
250 clean closes in the period.
SEC records
247 documents on file, from Feb 19, 2020 to Oct 16, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

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No. It is one close per session, from the provider and with the date shown on the profile; it does not update during the trading day.

Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

Why does a European company show no SEC records?

It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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