Lucid Diagnostics Inc.: which funds bought and sold

Institutions that bought and sold Lucid Diagnostics shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 84 institutions that filed 13F reports for both quarters added to or opened positions in Lucid Diagnostics, and 23 cut or closed them. Together they added a net 26.7M shares, +77.0% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 13.8M shares (+161.5%); index fund managers were net buyers of 10.2M shares (+69.7%). 25 opened a new position and 10 sold out entirely.

Bought, Q2 2026 84 institutions, 25 of them new holders Sold, Q2 2026 23 institutions, 10 of them sold out

Net change, all compared +26.7M shares (+77.0%)

Net change, active managers +13.8M shares (+161.5%), 11 bought, 4 sold

Buyers versus sellers

institutions compared, 126

84 bought 19 23 sold

Active managers and hedge funds 11 bought · 4 sold · +13.8M

Index fund managers 10 bought · 0 sold · +10.2M

Other institutions 63 bought · 19 sold · +2.7M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Alyeska Investment Group, L.P. Hedge fund	+8.9M New position	8.9M	$9.5M
Blackrock, Inc. Index funds	+3.7M +80.5%	8.4M	$9M
Two Seas Capital LP Hedge fund	+3.0M +100.0%	6.0M	$6.4M
Vanguard Capital Management LLC Index funds	+2.4M +57.8%	6.6M	$7M
First Manhattan Co. Llc. Active manager	+1.9M +576.6%	2.2M	$2.3M
Geode Capital Management, LLC Index funds	+1.5M +68.8%	3.8M	$4.1M
State Street Corp Index funds	+883K +56.8%	2.4M	$2.6M
Wells Fargo & Company	+793K +62.2%	2.1M	$2.2M
Northern Trust Corp Index funds	+549K +81.9%	1.2M	$1.3M
Vanguard Portfolio Management LLC Index funds	+493K +93.3%	1.0M	$1.1M
AQR Capital Management LLC Hedge fund	+488K +208.0%	723K	$773,824
Vanguard Fiduciary Trust Co Index funds	+445K +71.3%	1.1M	$1.1M
UBS Group AG	+400K +89.8%	845K	$904,486
Tripletail Wealth Management, LLC	+183K New position	183K	$196,256
Aberdeen Group PLC	+179K +4.9%	3.8M	$4.1M
Focus Partners Wealth	+149K New position	149K	$159,114
Jefferies Financial Group Inc.	+130K New position	130K	$139,100
Charles Schwab Investment Management Inc Index funds	+128K +64.8%	325K	$348,084
Nuveen, LLC	+105K +116.2%	195K	$208,720
Xml Financial, LLC	+100K +44.8%	323K	$345,819

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Alyeska Investment Group, L.P. Hedge fund	+8.9M New position	8.9M	$9.5M
Two Seas Capital LP Hedge fund	+3.0M +100.0%	6.0M	$6.4M
First Manhattan Co. Llc. Active manager	+1.9M +576.6%	2.2M	$2.3M
AQR Capital Management LLC Hedge fund	+488K +208.0%	723K	$773,824
Marshall Wace, LLP Hedge fund	+58K New position	58K	$61,946
Price T Rowe Associates Inc Active manager	+48K +64.0%	122K	$131,000
Centiva Capital, LP Hedge fund	+40K +58.5%	109K	$117,101
Citadel Advisors LLC Hedge fund	+36K New position	36K	$38,907
Alliancebernstein L.P. Active manager	+25K +112.6%	47K	$54,280
Intech Investment Management LLC Active manager	+13K +56.9%	37K	$39,083

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Renaissance Technologies LLC Hedge fund	−428K −85.7%	71K	$76,291
Goldman Sachs Group Inc	−172K −70.9%	71K	$75,554
Xtx Topco Ltd	−120K Sold out	0	—
FMR LLC Active manager	−116K −96.5%	4,215	$4,510
Squarepoint Ops LLC Hedge fund	−115K Sold out	0	—
Susquehanna International Group, LLP	−87K −84.4%	16K	$17,246
LPL Financial LLC	−39K −22.8%	133K	$142,476
Virtu Financial LLC	−27K Sold out	0	—
Abel Hall, LLC	−26K Sold out	0	—
Creative Financial Designs Inc	−15K Sold out	0	—
Stonex Group Inc.	−15K Sold out	0	—
Millennium Management LLC Hedge fund	−11K Sold out	0	—
California State Teachers Retirement System	−3,613 −74.1%	1,263	$1,351
Essential Partners LLC	−2,271 −80.0%	567	$607
Sterling Capital Management LLC	−1,378 −72.5%	522	$559
Perkins Capital Management Inc	−1,000 −0.1%	1.1M	$1.2M
Advisory Services Network, LLC	−765 Sold out	0	—
Gamma Investing LLC	−752 −84.1%	142	$152
Osaic Holdings, Inc.	−478 −2.1%	22K	$23,850
Root Financial Partners, LLC	−134 Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Renaissance Technologies LLC Hedge fund	−428K −85.7%	71K	$76,291
FMR LLC Active manager	−116K −96.5%	4,215	$4,510
Squarepoint Ops LLC Hedge fund	−115K Sold out	0	—
Millennium Management LLC Hedge fund	−11K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Alyeska Investment Group, L.P.Hedge fund	8.9M	$9.5M
Tripletail Wealth Management, LLC	183K	$196,256
Focus Partners Wealth	149K	$159,114
Jefferies Financial Group Inc.	130K	$139,100
State Of Wyoming	94K	$100,502
Sequoia Financial Advisors, LLC	92K	$98,601
Marshall Wace, LLPHedge fund	58K	$61,946
Magnus Financial Group LLC	55K	$59,278
Two Sigma Securities, LLC	40K	$42,715
Citadel Advisors LLCHedge fund	36K	$38,907

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Xtx Topco Ltd	120K	$137,458
Squarepoint Ops LLCHedge fund	115K	$132,275
Virtu Financial LLC	27K	$31,000
Abel Hall, LLC	26K	$29,587
Creative Financial Designs Inc	15K	$17,250
Stonex Group Inc.	15K	$16,799
Millennium Management LLCHedge fund	11K	$13,018
Advisory Services Network, LLC	765	$880
Root Financial Partners, LLC	134	$154
Mai Capital Management	130	$150

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 116
Ten largest holders: 78.3%
Index fund managers: 40.5%
Active managers and hedge funds: 36.3%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	11	4	3	2	+13.8M	+161.5%
Index fund managers	10	0	0	0	+10.2M	+69.7%
Other institutions	63	19	22	8	+2.7M	+23.6%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Lucid Diagnostics.

Only managers that filed a holdings report for both quarters are compared (126 here). 2 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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