BROWN ADVISORY INC, together with subsidiaries Brown Advisory LLC, Brown Investment Advisory & Trust Co, and Signature Financial Management, Inc., reports beneficial ownership of common stock of Lumexa Imaging Holdings, Inc.
The group reports beneficial ownership of 5,842,935 shares of Lumexa common stock, representing 6.08% of the class. Reported voting power is primarily sole, including 5,487,188 shares for Brown Advisory Inc, 75,048 for Brown Investment Advisory & Trust Co, 3,590 for Signature Financial Management, Inc., and 5,408,550 for Brown Advisory LLC. Dispositive power is reported as shared, including 5,837,497 shares for Brown Advisory Inc and 5,763,534 for Brown Advisory LLC.
The securities are beneficially owned by investment companies and other managed accounts of direct or indirect subsidiaries of Brown Advisory Inc, which may be deemed beneficial owners under investment advisory contracts providing voting and/or investment power.
Positive
None.
Negative
None.
Key Figures
Shares beneficially owned:5,842,935 sharesPercent of class:6.08%Sole voting power (Brown Advisory Inc):5,487,188 shares+3 more
6 metrics
Shares beneficially owned5,842,935 sharesCommon stock of Lumexa Imaging Holdings, Inc. reported by Brown Advisory group
Percent of class6.08%Portion of Lumexa Imaging common stock beneficially owned by Brown Advisory entities
Sole voting power (Brown Advisory Inc)5,487,188 sharesShares over which Brown Advisory Inc has sole power to vote
Sole voting power (Brown Advisory LLC)5,408,550 sharesShares over which Brown Advisory LLC has sole power to vote
Shared dispositive power (Brown Advisory Inc)5,837,497 sharesShares over which Brown Advisory Inc has shared power to dispose
Shared dispositive power (Brown Advisory LLC)5,763,534 sharesShares over which Brown Advisory LLC has shared power to dispose
Key Terms
beneficially owned, sole voting power, shared dispositive power, parent holding company, +1 more
5 terms
beneficially ownedfinancial
"Amount beneficially owned: 5,842,935"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
sole voting powerfinancial
"Number of shares as to which the person has | (i) Sole power to vote"
Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.
shared dispositive powerfinancial
"(iv) Shared power to dispose or to direct the disposition of"
parent holding companyfinancial
"BROWN ADVISORY INC is a parent holding company filing this schedule"
investment adviserfinancial
"BROWN ADVISORY LLC - IA (Investment Adviser)"
An investment adviser is a person or firm that professionally manages money and gives recommendations about buying, selling, or holding investments. Like a financial coach or guide, they have a legal duty to act in a client's best financial interest, so their advice, fees and potential conflicts can directly affect returns and risk — making their role important for investors who want informed, accountable help with portfolios.
FAQ
What percentage of Lumexa Imaging Holdings, Inc. (LMRI) does Brown Advisory report owning?
Brown Advisory and its subsidiaries report beneficial ownership of 6.08% of Lumexa Imaging Holdings, Inc. common stock, representing 5,842,935 shares held across investment companies and managed accounts under their advisory control.
How many LMRI shares does Brown Advisory report as beneficially owned?
Brown Advisory and related entities report beneficial ownership of 5,842,935 Lumexa Imaging Holdings, Inc. shares. This stake is held through investment companies and managed accounts advised by Brown Advisory’s direct and indirect subsidiaries.
Which Brown Advisory entities are included in this Schedule 13G for LMRI?
The filing covers BROWN ADVISORY INC, BROWN ADVISORY LLC, BROWN INVESTMENT ADVISORY & TRUST CO, and SIGNATURE FINANCIAL MANAGEMENT, INC., with Brown Advisory Inc acting as the parent holding company for these reporting subsidiaries.
What voting power over LMRI shares does Brown Advisory report?
Brown Advisory entities report sole voting power over shares, including 5,487,188 for Brown Advisory Inc and 5,408,550 for Brown Advisory LLC, and report no shared voting power across the listed subsidiaries in this Schedule 13G.
How is dispositive power over LMRI shares allocated among Brown Advisory entities?
The filing reports shared dispositive power and no sole dispositive power. Brown Advisory Inc reports shared dispositive power over 5,837,497 shares, while Brown Advisory LLC reports shared dispositive power over 5,763,534 shares of LMRI.
Who ultimately benefits from Brown Advisory’s LMRI holdings?
The securities are beneficially owned by investment companies and other managed accounts advised by Brown Advisory subsidiaries. These clients have the economic benefit, while contracts give Brown Advisory voting and/or investment power over the shares.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Lumexa Imaging Holdings, Inc.
(Name of Issuer)
Common stock, par value $0.0001 per share
(Title of Class of Securities)
550249106
(CUSIP Number)
06/30/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
550249106
1
Names of Reporting Persons
BROWN ADVISORY INC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
MARYLAND
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
5,487,188.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
5,837,497.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
5,842,935.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.08 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
CUSIP Number(s):
550249106
1
Names of Reporting Persons
BROWN INVESTMENT ADVISORY & TRUST CO
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
MARYLAND
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
75,048.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
69,610.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
75,048.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.08 %
12
Type of Reporting Person (See Instructions)
BK
SCHEDULE 13G
CUSIP Number(s):
550249106
1
Names of Reporting Persons
SIGNATURE FINANCIAL MANAGEMENT, INC.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
VIRGINIA
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
3,590.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
4,353.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
4,353.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.01 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
CUSIP Number(s):
550249106
1
Names of Reporting Persons
BROWN ADVISORY LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
MARYLAND
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
5,408,550.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
5,763,534.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
5,763,534.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Lumexa Imaging Holdings, Inc.
(b)
Address of issuer's principal executive offices:
4200 SIX FORKS ROAD, SUITE 1000, RALEIGH, NORTH CAROLINA
27609
Item 2.
(a)
Name of person filing:
BROWN ADVISORY INC
BROWN INVESTMENT ADVISORY & TRUST CO
SIGNATURE FINANCIAL MANAGEMENT, INC.
BROWN ADVISORY LLC
(b)
Address or principal business office or, if none, residence:
901 SOUTH BOND STREET
SUITE #400
Baltimore, Maryland
21231
(c)
Citizenship:
BROWN ADVISORY INC - MARYLAND
BROWN INVESTMENT ADVISORY & TRUST CO - MARYLAND
SIGNATURE FINANCIAL MANAGEMENT, INC. - VIRGINIA
BROWN ADVISORY LLC - MARYLAND
(d)
Title of class of securities:
Common stock, par value $0.0001 per share
(e)
CUSIP Number(s):
550249106
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
5,842,935
(b)
Percent of class:
6.08 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
BROWN ADVISORY INC - 5,487,188
BROWN INVESTMENT ADVISORY & TRUST CO - 75,048
SIGNATURE FINANCIAL MANAGEMENT, INC. - 3,590
BROWN ADVISORY LLC - 5,408,550
(ii) Shared power to vote or to direct the vote:
BROWN ADVISORY INC - 0
BROWN INVESTMENT ADVISORY & TRUST CO - 0
SIGNATURE FINANCIAL MANAGEMENT, INC. - 0
BROWN ADVISORY LLC - 0
(iii) Sole power to dispose or to direct the disposition of:
BROWN ADVISORY INC - 0
BROWN INVESTMENT ADVISORY & TRUST CO - 0
SIGNATURE FINANCIAL MANAGEMENT, INC. - 0
BROWN ADVISORY LLC - 0
(iv) Shared power to dispose or to direct the disposition of:
BROWN ADVISORY INC - 5,837,497
BROWN INVESTMENT ADVISORY & TRUST CO - 69,610
SIGNATURE FINANCIAL MANAGEMENT, INC. - 4,353
BROWN ADVISORY LLC - 5,763,534
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
The total securities being reported are beneficially owned by investment companies and other managed accounts of direct/indirect subsidiaries of BROWN ADVISORY INC (listed above). These subsidiaries may be deemed to be beneficial owners of the reported securities because applicable investment advisory contracts provide voting and/or investment power over securities.
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
BROWN ADVISORY INC is a parent holding company filing this schedule on behalf of the following subsidiaries pursuant to Rule 13d-1(b)(1)(ii)(G) under the Securities Exchange Act of 1934:
BROWN ADVISORY LLC - IA (Investment Adviser)
BROWN INVESTMENT ADVISORY & TRUST CO - BK (Bank)
SIGNATURE FINANCIAL MANAGEMENT, INC. - IA (Investment Adviser)
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
