Lumexa Imaging Holdings, Inc. - Common stock, par value $0.0001 per share (LMRI)

Q: What does CUSIP 550249106 represent in this 13F holders report?

CUSIP 550249106 is the security identifier for LMRI - Lumexa Imaging Holdings, Inc. - Common stock, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held LMRI - Lumexa Imaging Holdings, Inc. - Common stock, par value $0.0001 per share in Q1 2026?

89 institutional investors reported LMRI - Lumexa Imaging Holdings, Inc. - Common stock, par value $0.0001 per share for Q1 2026. Use the holders table for investor-level position and value details.

CUSIP: 550249106

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Common stock, par value $0.0001 per share
Total 13F shares: 28,962,508
Total 13F value: $248,384,818
Share change: +2,777,773
SEC-reported price per share: $8.60
Number of holders: 89
Value change: -$25,626,637
Number of buys: 66
Number of sells: 31
Shares outstanding: 96,100,905

Security key

550249106

Report period

Q1 2026

Institutions

Top holders

LMRI full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Previous quarter: Q4 2025 Lumexa Imaging Holdings, Inc. SEC filings Lumexa Imaging Holdings, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 550249106

Newer quarter: Q2 2026 Previous quarter: Q4 2025

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025

Ownership snapshot

Top reported holders of LMRI - Lumexa Imaging Holdings, Inc. - Common stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Welsh, Carson, Anderson &...

Disclosed value leader

Welsh, Carson, Anderson &...

Comparable rows

15/15

Latest evidence

25 Feb 2026

13D/G 3/4/5 13F Lead comparable stake: 74% 13D/G row: Welsh, Carson, Anderson & Stowe XII, L.P. Showing 1-6 of 15 holder rows.

Quick read

Welsh, Carson, Anderson & Stowe XII, L.P. leads the comparable SEC ownership view at 74%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Welsh, Carson, Anderson & Stowe XII, L.P.'s linked filing trail.

Comparable ownership Top 5

Welsh, Carson, Anderson & Stowe X... 74%

James Edward Walker Jr. 0.02%

ALLIANCEBERNSTEIN L.P. 3.4%

T. Rowe Price Investment Manageme... 2.1%

Janus Henderson Group Ltd. 2.1%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Welsh, Carson, Anderson & Stowe XII, L.P.	13D/G 13D/G	74%	$1,124,886,208 70,217,616 shares	$0	31 Dec 2025
James Edward Walker Jr.	3/4/5 Principal Accounting Officer 3/4/5	0.02%	$249,782 17,346 shares	—	25 Feb 2026
ALLIANCEBERNSTEIN L.P.	13F Company 13F	3.4%	$59,911,862 3,238,479 shares	—	31 Dec 2025
T. Rowe Price Investment Management, Inc.	13F Company 13F	2.1%	$37,139,000 2,007,483 shares	—	31 Dec 2025
Janus Henderson Group Ltd.	13F Company 13F	2.1%	$36,860,381 1,992,453 shares	—	31 Dec 2025
ArrowMark Colorado Holdings LLC	13F Company 13F	1.6%	$27,750,000 1,500,000 shares	—	31 Dec 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

28,962,508

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders

Q1 2026 holders

Holder diff

Investor	Q4 2025 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q4 2025 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend