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  • LMRI Lumexa Imaging Holdings, Inc.

LMRI

Lumexa Imaging Holdings, Inc.

Company with tickers: LMRI

CIK
2071288
CUSIP
550249106
Shares Outstanding
96,080,735
13F Activity (30d)
84 filings 83 filers
Holders: 90
Total Value: $274,709,497
Total Shares: 31,942,970

Institutional Ownership Trend

2 quarters

Holder Concentration

Across 90 13F filers · Δ vs Dec 31, 2025
Top Holder
9.3%
Dec 2025 → Mar 2026 · range 9.3% – 11.5%
−2.1 pts
Top 5
33.7%
Dec 2025 → Mar 2026 · range 33.7% – 36.2%
−2.5 pts
Top 10
53.9%
Dec 2025 → Mar 2026 · range 53.9% – 57.2%
−3.3 pts
HHI
397
Dec 2025 → Mar 2026 · range 397 – 465
Broadly held −68

Quarterly Activity

vs Dec 31, 2025
New
47
Increased
24
Decreased
15
Sold Out
19
Unchanged
4
Holder count: +28
Institutional value: -47.5%
Shares held: +13.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega BlackRock, Inc. +1,425,683 1,525,683
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ +1,334,567 2,334,580
Mega GEODE CAPITAL MANAGEMENT, LLC +590,459 674,134
Mid Longaeva Partners L.P. +357,423 557,423
Mega JPMORGAN CHASE & CO +242,110 1,104,507

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Large ADAGE CAPITAL PARTNERS GP, L.L.C. −628,260 418,528
Mega MILLENNIUM MANAGEMENT LLC −575,988 714,676
Mid SEVEN GRAND MANAGERS, LLC −535,500 110,000
Mid Zimmer Partners, LP −310,000 300,000
Mega ALLIANCEBERNSTEIN L.P. −258,017 2,980,462

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Large BROWN ADVISORY INC 1,705,077 $14,663,661
Mega VANGUARD CAPITAL MANAGEMENT LLC 1,058,486 $9,102,979
Small Pillsbury Lake Capital LLC 814,869 $7,007,873
Mega STATE STREET CORP 376,792 $3,240,411
Small Prescott Group Capital Management, L.L.C. 357,050 $3,070,630

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega T. Rowe Price Investment Management, Inc. 2,007,483 $37,138,435
Large Balyasny Asset Management L.P. 1,134,572 $20,989,582
Large Alyeska Investment Group, L.P. 334,771 $6,193,263
Large Blackstone Inc. 300,000 $5,550,000
Mega JANE STREET GROUP, LLC 243,313 $4,501,290
Filter: New 47 Increased 24 Reduced 15 Sold out 19 Unchanged 4
Showing 90 of 90
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega ALLIANCEBERNSTEIN L.P. $25,631,973 9.33% 2,980,462
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $20,077,388 7.31% 2,334,580
Mega JANUS HENDERSON GROUP PLC $18,063,061 6.58% 2,100,356
Large BROWN ADVISORY INC $14,663,661 5.34% 1,705,077
Mid ArrowMark Colorado Holdings LLC $14,218,018 5.18% 1,653,258
Mega BlackRock, Inc. $13,120,872 4.78% 1,525,683
Mega Invesco Ltd. $12,388,660 4.51% 1,440,542
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Pension $11,180,000 4.07% 1,300,000
Mega JPMORGAN CHASE & CO $9,498,759 3.46% 1,104,507
Mega VANGUARD CAPITAL MANAGEMENT LLC $9,102,979 3.31% 1,058,486
Mid EMERALD ADVISERS, LLC $7,944,043 2.89% 923,726
Small Pillsbury Lake Capital LLC $7,007,873 2.55% 814,869
Mega FMR LLC $6,833,465 2.49% 794,589
Mega GOLDMAN SACHS GROUP INC $6,583,376 2.40% 765,509
Mega MILLENNIUM MANAGEMENT LLC $6,146,213 2.24% 714,676
Mega GEODE CAPITAL MANAGEMENT, LLC $5,797,552 2.11% 674,134
Mega PRINCIPAL FINANCIAL GROUP INC $5,711,569 2.08% 664,136
Mega CITADEL ADVISORS LLC $5,646,631 2.06% 656,585
Mid EMERALD MUTUAL FUND ADVISERS TRUST Mutual Fund $5,618,741 2.05% 653,342
Large RTW INVESTMENTS, LP $5,590,000 2.03% 650,000
Large FEDERATED HERMES, INC. $4,902,000 1.78% 570,000
Mid Longaeva Partners L.P. $4,793,837 1.75% 557,423
Large Woodline Partners LP $4,576,042 1.67% 532,098
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $3,599,340 1.31% 418,528
Mega STATE STREET CORP $3,240,411 1.18% 376,792
Small Prescott Group Capital Management, L.L.C. $3,070,630 1.12% 357,050
Mid ROYCE & ASSOCIATES LP $2,838,000 1.03% 330,000
Mega FRANKLIN RESOURCES INC $2,776,948 1.01% 322,901
Large KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC $2,627,962 0.96% 305,577
Mid Zimmer Partners, LP $2,580,000 0.94% 300,000
Mid PRELUDE CAPITAL MANAGEMENT, LLC $2,575,622 0.94% 299,491
Mid XTX Topco Ltd $1,998,278 0.73% 232,358
Mid READYSTATE ASSET MANAGEMENT LP $1,932,893 0.70% 224,755
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $1,801,278 0.66% 209,451
Large Schonfeld Strategic Advisors LLC $1,726,028 0.63% 200,701
Mega NORTHERN TRUST CORP Bank $1,560,297 0.57% 181,430
Mega UBS Group AG $1,506,590 0.55% 175,185
Mega VANGUARD FIDUCIARY TRUST CO Bank $1,387,618 0.51% 161,351
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $1,263,099 0.46% 146,872
Small HUNTER ASSOCIATES INVESTMENT MANAGEMENT LLC $1,229,473 0.45% 142,962
Mega AMERIPRISE FINANCIAL INC $1,092,277 0.40% 127,009
Mega BANK OF AMERICA CORP /DE/ Bank $957,291 0.35% 111,313
Mid BOOTHBAY FUND MANAGEMENT, LLC $951,031 0.35% 110,585
Mid SEVEN GRAND MANAGERS, LLC $946,000 0.34% 110,000
Mega MORGAN STANLEY $898,096 0.33% 104,430
Large Point72 Asset Management, L.P. $870,990 0.32% 101,278
Mid F/m Investments LLC $816,802 0.30% 94,977
Large RENAISSANCE TECHNOLOGIES LLC $777,637 0.28% 90,423
Large SEI INVESTMENTS CO $758,433 0.28% 88,190
Mid Ghisallo Capital Management LLC $645,000 0.23% 75,000
Mega Bank of New York Mellon Corp Bank $479,070 0.17% 55,706
Mid Burkehill Global Management, LP $430,000 0.16% 50,000
Mega Nuveen, LLC $253,390 0.09% 29,464
Small Bullseye Asset Management LLC $172,000 0.06% 20,000
Mega PRICE T ROWE ASSOCIATES INC /MD/ $153,716 0.06% 17,874
Mega RHUMBLINE ADVISERS $153,105 0.06% 17,803
Mega TWO SIGMA INVESTMENTS, LP $145,288 0.05% 16,894
Mega BARCLAYS PLC $144,883 0.05% 16,847
Mega D. E. Shaw & Co., Inc. $141,194 0.05% 16,418
Large MetLife Investment Management, LLC $124,192 0.05% 14,441
Large Squarepoint Ops LLC $113,270 0.04% 13,171
Mega Vanguard Global Advisers, LLC $107,465 0.04% 12,496
Mega DEUTSCHE BANK AG\ Bank $104,988 0.04% 12,208
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $102,013 0.04% 11,862
Small State of Wyoming $91,125 0.03% 10,596
Mega WELLS FARGO & COMPANY/MN $81,682 0.03% 9,498
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $73,100 0.03% 8,500
Mega PNC FINANCIAL SERVICES GROUP, INC. $62,788 0.02% 7,301
Mega BNP PARIBAS ARBITRAGE, SA $46,440 0.02% 5,400
Large Police & Firemen's Retirement System of New Jersey Pension $42,174 0.02% 4,904
Large STRS OHIO $37,840 0.01% 4,400
Mega Legal & General Group Plc $18,997 0.01% 2,209
Mid Ameritas Investment Partners, Inc. $17,819 0.01% 2,072
Large ASSETMARK, INC $17,698 0.01% 2,058
Large Russell Investments Group, Ltd. $16,434 0.01% 1,911
Mid Tower Research Capital LLC (TRC) $13,605 0.00% 1,582
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $11,979 0.00% 1,393
Mid FIRST HORIZON CORP $6,217 0.00% 723
Mid Sterling Capital Management LLC $6,106 0.00% 710
Large JONES FINANCIAL COMPANIES LLLP $5,013 0.00% 583
Large BESSEMER GROUP INC $3,775 0.00% 439
Mid SBI Securities Co., Ltd. Broker-Dealer $2,623 0.00% 305
Large OSAIC HOLDINGS, INC. $1,849 0.00% 215
Small Parkside Financial Bank & Trust Bank $1,616 0.00% 188
Mid Allworth Financial LP $516 0.00% 60
Mega CITIGROUP INC $249 0.00% 29
Mid MAI Capital Management $215 0.00% 25
Small Caitong International Asset Management Co., Ltd $146 0.00% 17
Small Transamerica Financial Advisors, LLC $94 0.00% 11
Mid Advisory Services Network, LLC $86 0.00% 10

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