LUCD

Lucid Diagnostics Inc Cross-source read$0.78 2.64%
Health CareCUSIP 54948X109· EOD Sep 11, 2026

Among active 13F managers last quarter, 10 opened and 15 added, while 8 reduced; the largest holder to move was Alyeska Investment Group, L.P. (new position). Over the last 180 days, 1 insider bought and none sold, a net +$245K in open-market trades.

Tracked 13F holders
110
47 in Q2 2026 filings
13F value (tracked)
$60.3M
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
25 adding · 8 trimming
Insiders · Form 4 open-market, 180d
1 buying · 0 selling · +$245K
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Price & smart-money activity

$0.78 2.64%5Y -93.3%
$0.63$3.63$6.64$9.64$12.652021202220232024202520267444323352347223242435592312623721172115189
Hover for who · click for detailEnd-of-day closing prices52w $0.78 – $1.47

Who owns LUCD?

110 tracked 13F filers · ranked by shares held

110 tracked 13F filers disclose a position in LUCD as of the latest SEC 13F filings, a combined $60.3M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1Alyeska Investment Group, L.P.8.9M
$9.5M
New
+8.9M sh
Q2 2026
2BlackRock, Inc.8.4M
$9.0M
+81%
Added · +3.7M sh
Q2 2026
3Vanguard Capital Management LLC6.6M
$7.0M
+58%
Added · +2.4M sh
Q2 2026
4Masters Capital Management LLC4.0M
$4.3M
Held
Q2 2026
5Geode Capital Management, LLC3.8M
$4.1M
+69%
Added · +1.5M sh
Q2 2026
6Aberdeen Group plc3.6M
$4.2M
+5.4%
Added · +186K sh
Q1 2026
7Two Seas Capital LP3.0M
$3.5M
Held
Q1 2026
8State Street Corp2.4M
$2.6M
+57%
Added · +883K sh
Q2 2026
9First Manhattan Co. LLC.2.2M
$2.3M
+577%
Added · +1.9M sh
Q2 2026
10Russell Investments Group, Ltd.1.6M
$1.8M
156×
Added · +1.6M sh
Q1 2026
11Wells Fargo & Company1.3M
$1.5M
+39%
Added · +355K sh
Q1 2026
12Perkins Capital Management Inc1.1M
$1.2M
−0.1%
Reduced · −1K sh
Q2 2026
13Vanguard Fiduciary Trust Co1.1M
$1.1M
+71%
Added · +445K sh
Q2 2026
14Vanguard Portfolio Management LLC1.0M
$1.1M
+93%
Added · +493K sh
Q2 2026
15Northern Trust Corp671K
$771K
+5.3%
Added · +34K sh
Q1 2026
16Raymond James Financial Inc525K
$604K
New
+525K sh
Q1 2026
17Renaissance Technologies LLC500K
$575K
−40%
Reduced · −327K sh
Q1 2026
18Lido Advisors, LLC447K
$478K
+17%
Added · +64K sh
Q2 2026
19UBS Group AG445K
$512K
+44%
Added · +136K sh
Q1 2026
20Bank Of Montreal285K
$328K
20×
Added · +271K sh
Q1 2026
21Goldman Sachs Group Inc243K
$279K
−16%
Reduced · −47K sh
Q1 2026
22AQR Capital Management LLC235K
$270K
+188%
Added · +153K sh
Q1 2026
23Bank of New York Mellon Corp206K
$237K
+1.7%
Added · +4K sh
Q1 2026
24Charles Schwab Investment Management Inc197K
$227K
−12%
Reduced · −27K sh
Q1 2026
25LPL Financial LLC172K
$198K
+22%
Added · +31K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is LUCD being bought or sold by institutions?

Last quarter, 10 funds opened a new position in LUCD and 15 added to an existing one, while 8 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
10
funds took a first position
Added
15
added to an existing position
Reduced
8
reduced, still holding
Biggest moves · ranked by size of the change, positions above a floor

Funds that own LUCD also own

CompanyCo-held byTheir position there
Nvidia CorpNVDA49 funds$147.5B
Microsoft CorpMSFT49 funds$85.9B
Eli Lilly & CoLLY49 funds$33.2B
Micron Technology IncMU49 funds$23.9B
Apple IncAAPL48 funds$104.3B
Alphabet Inc-CL AGOOGL48 funds$62.1B
Meta Platforms Inc-Class AMETA48 funds$41.2B
Amazon.com IncAMZN47 funds$66.9B
Tesla IncTSLA47 funds$24.1B
Johnson & JohnsonJNJ47 funds$15.1B
Walmart IncWMT47 funds$11.0B
Bristol-Myers Squibb CoBMY47 funds$6.1B

Ranked by how many of LUCD's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in LUCD.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$245K
1 insider
Net · 180d
$245K
1 open-market transaction
DateInsiderRoleActionSharesValue
May 20, 2026Matheis DennisDirectorBuy (P)245K$245K
Aug 20, 2025Matheis DennisDirectorBuy (P)100K$102K
May 22, 2025Matheis DennisDirectorBuy (P)33K$44K
May 21, 2025Matheis DennisDirectorBuy (P)130K$171K
May 20, 2025Matheis DennisDirectorBuy (P)187K$243K
Sep 26, 2023Lapidus StanleyDirectorSell (S)
3 lots, same day
30K$43K
Sep 25, 2023Lapidus StanleyDirectorSell (S)200$286
Sep 21, 2023Lapidus StanleyDirectorSell (S)100$144
Sep 20, 2023Lapidus StanleyDirectorSell (S)
2 lots, same day
4K$6K
Sep 20, 2022Lapidus StanleyDirectorSell (S)
2 lots, same day
34K$58K
Oct 18, 2021PAVmed Inc.10% OwnerBuy (P)571K$8.0M

One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.

Do institutions, insiders and Congress agree?

Confluence: insiders and funds buying

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
4419
Insiders
Form 4 open-market
10+$245K
US House
STOCK Act trades
00$0
Sector rotation
LUCD is in Health Care, which smart money is rotating OUT OF
$5.0B

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

47 tracked filers in Q2 2026 filingsstill filing
05099Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $9.3M
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Recent filings

15 most recent

Keep exploring

Connected entities for LUCD

Browse more

Build

Ask your agent what changed in LUCD

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/LUCD/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for LUCD.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for LUCD. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.