X0202 SCHEDULE 13G 0001345929 XXXXXXXX LIVE Common stock, par value $0.0001 per share 06/30/2026 0002071288 Lumexa Imaging Holdings, Inc. 550249106 4200 SIX FORKS ROAD SUITE 1000 RALEIGH NC 27609 Rule 13d-1(b) BROWN ADVISORY INC MD 5487188 0 0 5837497 5842935 N 6.08 HC BROWN INVESTMENT ADVISORY & TRUST CO MD 75048 0 0 69610 75048 N 0.08 BK SIGNATURE FINANCIAL MANAGEMENT, INC. VA 3590 0 0 4353 4353 N 0.01 IA BROWN ADVISORY LLC MD 5408550 0 0 5763534 5763534 N 6 IA Lumexa Imaging Holdings, Inc. 4200 SIX FORKS ROAD, SUITE 1000, RALEIGH, NORTH CAROLINA 27609 BROWN ADVISORY INC BROWN INVESTMENT ADVISORY & TRUST CO SIGNATURE FINANCIAL MANAGEMENT, INC. BROWN ADVISORY LLC 901 SOUTH BOND STREET SUITE #400 Baltimore, Maryland 21231 BROWN ADVISORY INC - MARYLAND BROWN INVESTMENT ADVISORY & TRUST CO - MARYLAND SIGNATURE FINANCIAL MANAGEMENT, INC. - VIRGINIA BROWN ADVISORY LLC - MARYLAND N BK IA HC 5,842,935 6.08 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 BROWN ADVISORY INC - 0 BROWN INVESTMENT ADVISORY & TRUST CO - 0 SIGNATURE FINANCIAL MANAGEMENT, INC. - 0 BROWN ADVISORY LLC - 0 BROWN ADVISORY INC - 0 BROWN INVESTMENT ADVISORY & TRUST CO - 0 SIGNATURE FINANCIAL MANAGEMENT, INC. - 0 BROWN ADVISORY LLC - 0 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 Y N 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. N 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) Y Y N 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. BROWN ADVISORY INC /s/Victor Fernandez 08/14/2026 BROWN INVESTMENT ADVISORY & TRUST CO /s/Victor Fernandez 08/14/2026 SIGNATURE FINANCIAL MANAGEMENT, INC. /s/Victor Fernandez 08/14/2026 BROWN ADVISORY LLC /s/Victor Fernandez 08/14/2026