Latest Period
Q1 2026
Security Snapshot
Lumexa Imaging Holdings, Inc. - Common Stock, $0.001 par value (LMRI) Institutional Ownership
CUSIP: 550249106
13F Institutional Holders and Ownership History from Q4 2025 to Q2 2026
Institutions Reporting
89
Shares (Excl. Options)
28,962,508
Price
$8.60
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- Security type / class
- Equity / Common Stock, $0.001 par value
- Symbol
- LMRI on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 28,962,508
- Total 13F value
- $248,384,818
- Portfolio coverage rank
- 0%
- Share change
- +2,777,773
- Value change
- -$25,626,637
- Number of holders
- 89
- Shares outstanding
- 94,505,540
- SEC-reported price per share
- $11.28
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- LMRI - Lumexa Imaging Holdings, Inc. - Common Stock, $0.001 par value is tracked under CUSIP 550249106.
- 89 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 89 to 12 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $248,384,818 to $483,968.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 89 institutions filings for Q1 2026.
Security key
550249106
Latest holder period
Q1 2026
13F holders
89
13D/G owners
1
CIK / CUSIP context first
Open Q1 2026 holders
LMRI full holder history
Lumexa Imaging Holdings, Inc. SEC filings
Lumexa Imaging Holdings, Inc. company facts
Lumexa Imaging Holdings, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 550249106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
LMRI
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Welsh, Carson, Anderson & Stowe XII, L.P. | 74% | $1,124,886,208 | 70,217,616 | Welsh, Carson, Anderson & Stowe XII, L.P. | 31 Dec 2025 |
As of 31 Mar 2026, 89 institutional investors reported holding 28,962,508 shares of Lumexa Imaging Holdings, Inc. - Common Stock, $0.001 par value (LMRI). This represents 31% of the company’s total 94,505,540 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
26%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 2.5% | 2,334,580 | +133% | 0.01% | $20,077,388 |
| JANUS HENDERSON GROUP PLC | 2.2% | 2,100,356 | +5.4% | 0.01% | $18,063,062 |
| BROWN ADVISORY INC | 1.8% | 1,705,077 | 0.02% | $14,663,662 | |
| ArrowMark Colorado Holdings LLC | 1.7% | 1,653,258 | +10% | 0.38% | $14,218,019 |
| BlackRock, Inc. | 1.6% | 1,525,683 | +1426% | 0% | $13,120,874 |
| Invesco Ltd. | 1.5% | 1,440,542 | +0.33% | 0% | $12,388,661 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1.4% | 1,300,000 | -13% | 0.02% | $11,180,000 |
| JPMORGAN CHASE & CO | 1.2% | 1,104,507 | +28% | 0% | $8,802,921 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.1% | 1,058,486 | 0% | 0% | $9,102,980 |
| EMERALD ADVISERS, LLC | 0.98% | 923,726 | -0.98% | 0.25% | $7,944,044 |
| Pillsbury Lake Capital LLC | 0.86% | 814,869 | 3.2% | $7,007,873 | |
| FMR LLC | 0.84% | 794,589 | +17% | 0% | $6,833,465 |
| GOLDMAN SACHS GROUP INC | 0.81% | 765,509 | -25% | 0% | $6,583,378 |
| MILLENNIUM MANAGEMENT LLC | 0.76% | 714,676 | -45% | 0% | $6,146,214 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.71% | 674,134 | +706% | 0% | $5,799,048 |
| PRINCIPAL FINANCIAL GROUP INC | 0.7% | 664,136 | +1.2% | 0% | $5,711,571 |
| CITADEL ADVISORS LLC | 0.69% | 656,585 | -23% | 0% | $5,646,631 |
| EMERALD MUTUAL FUND ADVISERS TRUST | 0.69% | 653,342 | +11% | 0.27% | $5,618,741 |
| RTW INVESTMENTS, LP | 0.69% | 650,000 | 0% | 0.06% | $5,590,000 |
| FEDERATED HERMES, INC. | 0.6% | 570,000 | +27% | 0.01% | $4,902,000 |
| Longaeva Partners L.P. | 0.59% | 557,423 | +179% | 0.23% | $4,793,838 |
| Woodline Partners LP | 0.56% | 532,098 | -22% | 0.02% | $4,576,043 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 0.44% | 418,528 | -60% | 0.01% | $3,599,341 |
| STATE STREET CORP | 0.4% | 376,792 | 0% | $3,240,411 | |
| Prescott Group Capital Management, L.L.C. | 0.38% | 357,050 | 0.31% | $3,070,630 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
3
Latest
Q1 2026
Rows shown
1-3 of 3