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Lucid Diagnostics
LUCD

89 hedge funds and large institutions have $35.1M invested in Lucid Diagnostics in 2025 Q4 according to their latest regulatory filings, with 18 funds opening new positions, 31 increasing their positions, 15 reducing their positions, and 14 closing their positions.

New
Increased
Maintained
Reduced
Closed

107% more repeat investments, than reductions

Existing positions increased: 31 | Existing positions reduced: 15

29% more first-time investments, than exits

New positions opened: 18 | Existing positions closed: 14

3% more funds holding

Funds holding: 86 → 89 (+3)

1% less capital invested

Capital invested by funds: $35.5M → $35.1M (-$403K)

2.25% less ownership

Funds ownership: 25.63% → 23.37% (-2.3%)

Holders
89
Holders Change
+3
Holders Change %
+3.49%
% of All Funds
1.08%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
18
Increased
31
Reduced
15
Closed
14
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Aberdeen Group
Aberdeen Group
United Kingdom
+$1.07M
2
BlackRock
BlackRock
New York
+$719K
3
Renaissance Technologies
Renaissance Technologies
New York
+$596K
4
Vanguard Group
Vanguard Group
Pennsylvania
+$497K
5
Geode Capital Management
Geode Capital Management
Massachusetts
+$394K

Top Sellers

Rank Fund Capital Flow
1
AIC
AWM Investment Company
New York
-$3.02M
2
GCM
Ghisallo Capital Management
Massachusetts
-$2.99M
3
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$1.4M
4
LM
Luminus Management
Texas
-$606K
5
Goldman Sachs
Goldman Sachs
New York
-$303K
Name Holding Trade Value Shares
Change 		Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$5.42M +$497K +444,611 +10%
BlackRock
2
BlackRock
New York
$4.7M +$719K +643,346 +18%
MCM
3
Masters Capital Management
Georgia
$4.36M +$813 +727 +0%
Aberdeen Group
4
Aberdeen Group
United Kingdom
$3.77M +$1.07M +957,894 +38%
TSC
5
Two Seas Capital
New York
$3.27M – – –
Geode Capital Management
6
Geode Capital Management
Massachusetts
$2.21M +$394K +352,654 +21%
State Street
7
State Street
Massachusetts
$1.47M +$375K +335,168 +33%
PCM
8
Perkins Capital Management
Minnesota
$1.23M -$1.12K -1,000 -0.1%
Wells Fargo
9
Wells Fargo
California
$1M +$229K +205,166 +29%
Renaissance Technologies
10
Renaissance Technologies
New York
$901K +$596K +532,894 +181%
Northern Trust
11
Northern Trust
Illinois
$694K +$149K +133,269 +26%
SS
12
Sunbelt Securities
Texas
$419K – – –
LM
13
Luminus Management
Texas
$404K -$606K -541,836 -59%
Jane Street
14
Jane Street
New York
$395K +$372K +332,975 +1,123%
Lido Advisors
15
Lido Advisors
California
$387K – – –
Squarepoint
16
Squarepoint
New York
$374K +$364K +325,493 +1,872%
First Manhattan
17
First Manhattan
New York
$353K – – –
UBS Group
18
UBS Group
Switzerland
$337K +$184K +164,250 +113%
Goldman Sachs
19
Goldman Sachs
New York
$315K -$303K -270,879 -48%
XT
20
XTX Topco
Cayman Islands
$246K +$252K +225,460 New
Charles Schwab
21
Charles Schwab
California
$245K +$56K +50,053 +29%
Bank of New York Mellon
22
Bank of New York Mellon
New York
$221K -$3.45K -3,089 -2%
XF
23
XML Financial
Maryland
$195K – – –
Millennium Management
24
Millennium Management
New York
$168K +$172K +153,918 New
LPL Financial
25
LPL Financial
California
$154K +$237 +212 +0.2%
1
2 3 4 5

LUCD Hedge Fund Activity: Q4 2025 in Review

89 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Lucid Diagnostics (LUCD) for Q4 2025, worth a combined $35.1M — down 1.1% from $35.5M a quarter earlier.

Buyers outnumbered sellers: 18 funds opened new LUCD positions and 14 closed out — a net gain of 4 holders — while 31 added to existing stakes and 15 trimmed.

The largest buyer was Aberdeen Group, adding an estimated $1.07M. The largest seller was AWM Investment Company, exiting entirely with an estimated $3.02M sold.

  • 89 institutional investors held Lucid Diagnostics (LUCD) as of Q4 2025, up from 86 in Q3 2025.
  • Funds reported $35.1M of Lucid Diagnostics stock for Q4 2025, down 1.1% quarter-over-quarter.
  • 18 funds opened new Lucid Diagnostics positions in Q4 2025 and 14 closed out, a net change of +4 holders.
  • The largest Lucid Diagnostics buyer in Q4 2025 was Aberdeen Group, an estimated $1.07M added.
  • The largest Lucid Diagnostics seller in Q4 2025 was AWM Investment Company, an estimated $3.02M sold.

Based on aggregated 13F filings for Q4 2025.