StockData
LMRINasdaqServices-Medical LaboratoriesFiscal year ends December 31

Lumexa Imaging Holdings, Inc.

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 13, 2026
$10.72−0.06 (-0.56%)

Close on Oct 19, 2026

Market cap
$1.03B
P/E (TTM)
–
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
32.7%
31M of 96M shares
Institutional holders
103
32 new, 17 sold out
Net institutional buying
2M
In Q2 2026
Insider trades, 12 months
2 buys · 0 sales
Net bought $476.95K

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
Welsh, Carson, Anderson & Stowe XII, L.P.70,217,61674.30%13G (passive)Dec 31, 2025
Brown Advisory Inc5,842,9356.08%13G (passive)Jun 30, 2026

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of LMRIValueChange% of portfolio
Brown Advisory Inc5,777,5746.01%$65.17M+4,072,4970.10%
Massachusetts Financial Services Co /Ma/3,453,7233.59%$38.96M+1,119,1430.01%
Think Investments LP2,559,5012.66%$28.87MNew3.41%
Jupiter Topco LLC2,151,5382.24%$24.27MNew0.01%
BlackRock, Inc.1,398,1121.46%$15.77M−127,5710.00%
JPMorgan Chase & Co1,154,4631.20%$13.25M+49,9560.00%
Vanguard Capital Management LLC1,070,3251.11%$12.07M+11,8390.00%
Goldman Sachs Group Inc807,4280.84%$9.11M+41,9190.00%
Royce & Associates LP789,0400.82%$8.90M+459,0400.07%
Schonfeld Strategic Advisors LLC768,8900.80%$8.67M+568,1890.03%
Brigade Capital Management, LP665,9000.69%$7.51MNew1.41%
Rtw Investments, LP650,0000.68%$7.33M–0.06%
Millennium Management LLC627,9890.65%$7.08M−86,6870.00%
Geode Capital Management, LLC626,3180.65%$7.07M−47,8160.00%
Adage Capital Partners Gp, L.L.C.625,2700.65%$7.05M+206,7420.01%
ArrowMark Colorado Holdings LLC602,0490.63%$6.79M−1,051,2090.28%
Healthcare Of Ontario Pension Plan Trust Fund600,0000.62%$6.77M−700,0000.01%
Longaeva Partners L.P.528,8010.55%$5.96M−28,6220.13%
Silvercrest Asset Management Group LLC467,3390.49%$5.27MNew0.03%
State Street Corp459,1280.48%$5.18M+82,3360.00%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 202610331M32.7%32 / 3129 / 1715M13M
Q1 20269032M33.2%47 / 2415 / 1712M9M
Q4 20256228M29.5%62 / 00 / 028M0M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of LMRIValue% of fundAs of
Brown Advisory Small-Cap Fundamental Value Fund1,986,9802.07%$22.41M1.82%Jun 30, 2026
MFS New Discovery Value Fund1,785,4501.86%$13.89M0.56%May 31, 2026
Janus Henderson Triton Fund1,025,3681.07%$11.57M0.19%Jun 30, 2026
Bridge Builder Small/Mid Cap Value Fund835,5580.87%$9.43M0.09%Jun 30, 2026
Vanguard Total Stock Market Index Fund760,8030.79%$8.58M0.00%Jun 30, 2026
MFS Core Equity Fund705,9910.73%$5.49M0.08%May 31, 2026
Janus Henderson Venture Fund612,7790.64%$6.91M0.19%Jun 30, 2026
JPMorgan Small Cap Growth Fund534,2300.56%$6.03M0.23%Jun 30, 2026
iShares Russell 2000 ETF517,6910.54%$5.84M0.01%Jun 30, 2026
Royce Small-Cap Opportunity Fund368,3810.38%$4.16M0.29%Jun 30, 2026
Brown Advisory Small-Cap Growth Fund367,4930.38%$4.15M0.70%Jun 30, 2026
Emerald Growth Fund336,1370.35%$3.22M0.23%Apr 30, 2026
SmallCap Growth Fund I333,3890.35%$3.47M0.14%Jul 31, 2026
Putnam Small Cap Value Fund319,2000.33%$2.48M0.84%May 31, 2026
Virtus KAR Health Sciences Fund292,9210.30%$3.30M3.60%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Caitlin ZullaChief Executive Officer, Director129,7280.14%Dec 16, 2025
James Edward Walker Jr.Principal Accounting Officer17,3460.02%Feb 27, 2026
James Anthony MartinChief Financial Officer54,0540.06%Jan 15, 2026
Russell StewartChief Medical Officer4,2320.00%Dec 16, 2025
Julie SzekerChief Legal Officer & Corp Sec66,1820.07%Dec 16, 2025
Bridget E. KarlinDirector19,3580.02%Jun 12, 2026
Glenn A. EisenbergDirector19,3580.02%Jun 12, 2026
Molly JosephDirector46,3850.05%Jun 12, 2026
Henry Lee CooperDirector49,3580.05%Jun 12, 2026
Robert Louis Mittl Jr.Director19,3580.02%Jun 12, 2026
Brett BrodnaxDirector81,3850.08%Jun 12, 2026
Matthew LungrenDirector19,3580.02%Jun 12, 2026
Brian Thomas ReganDirector––Dec 11, 2025
Welsh, Carson, Anderson & Stowe XII Delaware, L.P.10% owner––Dec 11, 2025
Welsh, Carson, Anderson & Stowe XII Cayman, L.P.10% owner––Dec 11, 2025
Xii Associates Llc Wcas10% owner––Dec 11, 2025
Wcas - Co-Invest Holdco, L.P.10% owner––Dec 11, 2025
Management Corp Wcas10% owner––Dec 11, 2025
XII Co-Investors LLC WCAS10% owner––Dec 11, 2025
Welsh, Carson, Anderson & Stowe XII, L.P.10% owner––Dec 11, 2025
Wcas Xii Associates Cayman, L.P.10% owner––Dec 11, 2025
Welsh, Carson, Anderson & Stowe XII Delaware II, L.P.10% owner––Dec 11, 2025
Co-Invest Associates Llc Wcas10% owner––Dec 11, 2025

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Glenn A. Eisenberg
Director
Jun 10, 2026Award+19,358––19,358
Molly Joseph
Director
Jun 10, 2026Award+19,358––46,385
Bridget E. Karlin
Director
Jun 10, 2026Award+19,358––19,358
Robert Louis Mittl Jr.
Director
Jun 10, 2026Award+19,358––19,358
Henry Lee Cooper
Director
Jun 10, 2026Award+19,358––19,358
Matthew Lungren
Director
Jun 10, 2026Award+19,358––19,358
Brett Brodnax
Director
Jun 10, 2026Award+19,358––81,385
Brett Brodnax
Director
May 19, 2026Buy+35,000$7.25$253.75K62,027
Henry Lee Cooper
Director
May 14, 2026Buy+30,000$7.44$223.20K30,000
James Edward Walker Jr.
Principal Accounting Officer
Feb 25, 2026Award+12,414––17,346
James Anthony Martin
Chief Financial Officer
Dec 12, 2025Award+27,027––54,054
James Anthony Martin
Chief Financial Officer
Dec 12, 2025Award+27,027––27,027
James Edward Walker Jr.
Principal Accounting Officer
Dec 12, 2025Award+4,932––4,932
Brett Brodnax
Director
Dec 12, 2025Award+27,027––27,027
Russell Stewart
Chief Medical Officer
Dec 12, 2025Award+4,232––4,232
Russell Stewart
Chief Medical Officer
Dec 12, 2025Award+4,232––8,464
Caitlin Zulla
Chief Executive Officer, Director
Dec 12, 2025Award+64,864––129,728
Caitlin Zulla
Chief Executive Officer, Director
Dec 12, 2025Award+64,864––64,864
Julie Szeker
Chief Legal Officer & Corp Sec
Dec 12, 2025Option exercise+66,182––66,182
Julie Szeker
Chief Legal Officer & Corp Sec
Dec 12, 2025Award+81,081––147,263
Molly Joseph
Director
Dec 12, 2025Award+27,027––27,027

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.