$LMRI

$11.74 +$0.08 (0.69%) Close

$LMRI Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 96.1M shares outstanding

Who owns LMRI?

By type of holder

Institutions 32.7% Insiders 0.6% Everyone else 66.7%

Concentration Top 10 holders own 20.4%

Brown Advisory Inc 6.0% · Massachusetts Financial Services Co /ma/ 3.6%

Institutional ownership

32.7%

-0.5 pts vs last qtr

Institutional holders

102

+12 vs last qtr

Net shares bought

−518.6K

by institutions in Q2 2026

New / sold out

31 / 19

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Brown Advisory Inc +4.1M
Think Investments LP NEW +2.6M

Biggest sellers in Q2 2026

Alliancebernstein L.P. −3.0M
Janus Henderson Group PLC SOLD OUT −2.1M

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Lumexa Imaging Holdings, Inc. in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Lumexa Imaging Holdings, Inc..

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years0% Under 1 year100%

Quarterly turnover

46.9%

of institutional shares changed hands

Top 10 managers, median time held

2 quarters

Super Investors

Investment managers reporting LMRI on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
BA Brown Advisory Inc	5.8M	6.01%	+4.1M (+238.8%)	Q1 '26	0.1%
Shares held by quarter Peak holding5.8M (Q2'26) Change over 8 quarters+5.8M Share of the company6.010% Brown Advisory Inc's full portfolio →
MF Massachusetts Financial Services Co /ma/	3.5M	3.59%	+1.1M (+47.9%)	Q4 '25	0.0%
Shares held by quarter Peak holding3.5M (Q2'26) Change over 8 quarters+3.5M Share of the company3.590% Massachusetts Financial Services Co /ma/'s full portfolio →

Brown Advisory Inc

5.8M

% of company

6.01%

Change vs last qtr

+4.1M (+238.8%)

Held since

Q1 '26

Massachusetts Financial Services Co /ma/

3.5M

% of company

3.59%

Change vs last qtr

+1.1M (+47.9%)

Held since

Q4 '25

28 more super investors behind a free account

See every manager holding Lumexa Imaging Holdings, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting LMRI on Form N-PORT; together they hold 19.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
BA Brown Advisory Small-Cap Fundamental Value Fund Brown Advisory Funds	$22.4M	2.0M	2.07%	1.82%	June 30, 2026
MN MFS New Discovery Value Fund MFS Series Trust Xiii	$18.3M	1.6M	1.63%	0.80%	August 31, 2026

Brown Advisory Small-Cap Fundamental Value Fund

Brown Advisory Funds

Position value

$22.4M

% of company

2.07%

% of the fund

1.82%

As of

June 30, 2026

MFS New Discovery Value Fund

MFS Series Trust Xiii

Position value

$18.3M

% of company

1.63%

% of the fund

0.80%

As of

August 31, 2026

23 more funds behind a free account

See every fund holding Lumexa Imaging Holdings, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
SJ Szeker Julie Insider	147.3K	0.15%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.150% Szeker Julie's insider activity →
ZC Zulla Caitlin Insider	129.7K	0.14%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.140% Zulla Caitlin's insider activity →

Szeker Julie

Insider

147.3K

% of company

0.15%

Change vs last qtr

—

Held since

—

Zulla Caitlin

Insider

129.7K

% of company

0.14%

Change vs last qtr

—

Held since

—

10 more holders behind a free account

See every insider and 5%+ holder of Lumexa Imaging Holdings, Inc..

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