Lumexa Imaging Holdings, Inc.

LMRI

Exchange: Nasdaq
Industry: Services-Medical Laboratories
SEC CIK: 0002071288

SEC filings (opens in a new tab)

No open-market purchases or sales by Lumexa Imaging Holdings, Inc. insiders were filed in the last 90 days; 102 institutions reported holding it in 13F filings for Q2 2026, worth $354.7M in total; no superinvestor holds it.

Q1 2026 vs. Q4 2025

How the institutions holding Lumexa Imaging Holdings, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026 All holders in Q4 2025

13F holders of LMRI: Q4 2025 compared with Q1 2026
Measure	Q4 2025	Of which not filed for Q1 2026	Q1 2026	Change
Holders	62	2	90	+30
Shares	28.3M	240.0K	31.9M	+3.90M (+13.9%)
Value	$523.2M	$4.44M	$303.5M	−$215.2M (−41.5%)

2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (47)

Institutions that held Lumexa Imaging Holdings, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to LMRI in Q1 2026
Institution	Shares	Value	% of portfolio
Brown Advisory Inc	1,705,077	$14.7M	0.02%
Vanguard Capital Management LLC	1,058,486	$9.10M	0.00%
Pillsbury Lake Capital LLC	814,869	$7.01M	3.17%
State Street Corp	376,792	$3.24M	0.00%
Prescott Group Capital Management, L.L.C.	357,050	$3.07M	0.31%
Royce & Associates LP	330,000	$2.84M	0.03%
Franklin Resources Inc	322,901	$2.78M	0.00%
Prelude Capital Management, LLC	299,491	$2.58M	0.20%
XTX Topco Ltd	232,358	$2.00M	0.03%
Charles Schwab Investment Management Inc	209,451	$1.80M	0.00%
Schonfeld Strategic Advisors LLC	200,701	$1.73M	0.01%
Northern Trust Corp	181,430	$1.56M	0.00%
Vanguard Fiduciary Trust Co	161,351	$1.39M	0.00%
Vanguard Portfolio Management LLC	146,872	$1.26M	0.00%
Hunter Associates Investment Management LLC	142,962	$1.23M	0.16%
Boothbay Fund Management, LLC	110,585	$951.0K	0.02%
F/M Investments LLC	94,977	$816.8K	0.05%
Renaissance Technologies LLC	90,423	$777.6K	0.00%
Bank of New York Mellon Corp	55,706	$479.1K	0.00%
Nuveen, LLC	29,464	$253.4K	0.00%
Bullseye Asset Management LLC	20,000	$172.0K	0.10%
Price T Rowe Associates Inc	17,874	$154.0K	0.00%
Rhumbline Advisers	17,803	$153.1K	0.00%
MetLife Investment Management	14,441	$124.2K	0.00%
Vanguard Global Advisers, LLC	12,496	$107.5K	0.00%
Deutsche Bank AG	12,208	$105.0K	0.00%
Mirae Asset Global ETFs Holdings Ltd.	11,862	$102.0K	0.00%
State of Wyoming	10,596	$91.1K	0.01%
Wells Fargo & Company	9,498	$81.7K	0.00%
New York State Common Retirement Fund	8,500	$73.1K	0.00%
The PNC Financial Services Group, Inc.	7,301	$62.8K	0.00%
BNP Paribas Arbitrage, SA	5,400	$46.4K	0.00%
Police & Firemen's Retirement System of New Jersey	4,904	$42.2K	0.00%
STRS Ohio	4,400	$37.8K	0.00%
Ameritas Investment Partners, Inc.	2,072	$17.8K	0.00%
Russell Investments Group, Ltd.	1,911	$16.4K	0.00%
Tower Research Capital LLC (TRC)	1,582	$13.6K	0.00%
California State Teachers Retirement System	1,393	$12.0K	0.00%
Sterling Capital Management LLC	710	$6.11K	0.00%
Jones Financial Companies LLLP	583	$4.54K	0.00%
Bessemer Group Inc	439	$4.00K	0.00%
Parkside Financial Bank & Trust	188	$1.62K	0.00%
Allworth Financial LP	60	$516	0.00%
Citigroup Inc	29	$249	0.00%
Caitong International Asset Management Co., Ltd	17	$146	0.00%
Transamerica Financial Advisors, Inc.	11	$94	0.00%
Advisory Services Network, LLC	10	$86	0.00%

Sold out (17)

Institutions that held Lumexa Imaging Holdings, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of LMRI in Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
T. Rowe Price Investment Management, Inc.	2,007,483	$37.1M
Balyasny Asset Management LLC	1,134,572	$21.0M
Alyeska Investment Group, L.P.	334,771	$6.19M
Blackstone Group Inc.	300,000	$5.55M
Jane Street Group, LLC	243,313	$4.50M
Marshall Wace, LLP	171,633	$3.18M
Fortress Investment Group LLC	152,573	$2.82M
Monashee Investment Management LLC	150,000	$2.77M
HBK Investments L P	120,000	$2.22M
Element Capital Management LLC	87,352	$1.62M
Laurion Capital Management LP	80,000	$1.48M
Teacher Retirement System of Texas	75,000	$1.39M
TD Asset Management Inc	68,326	$1.26M
Oxford Asset Management LLP	36,193	$669.6K
Hudson Bay Capital Management LP	12,810	$237.0K
Brevan Howard Capital Management LP	11,340	$209.8K
Aster Capital Management (DIFC) Ltd	999	$18.5K

Not filed for Q1 2026 yet (2)

Institutions that held Lumexa Imaging Holdings, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding LMRI in Q4 2025 that haven't filed for Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Vanguard Group Inc	230,000	$4.26M
Sandia Investment Management LP	10,000	$185.0K