LMRI · Lumexa Imaging Holdings, Inc. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 102 13F filersWho Holds LMRI
Last 4 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 102 filers, like-for-like change -1.6%; actively managed books -1.5%; index-like books -2.2%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 51.6% | 53 | -5.7% |
| Exempt adviser | 0.1% | 1 | new |
| Adviser | 1.9% | 3 | -75.1% |
| Bank | 6.3% | 12 | -3.0% |
| Benefit plan | 0.5% | 3 | +2509.1% |
| Non-US | 2.0% | 4 | -52.8% |
| Holding company | 8.3% | 6 | -20.1% |
| Insurer | 0.0% | 0 | -100.0% |
| Unknown | 29.3% | 20 | +84.6% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 15.5% | 16 | -2.2% |
| Systematic-like | 4.0% | 10 | -53.3% |
| Concentrated | 11.3% | 9 | +6012.3% |
| Diversified active | 69.3% | 67 | -10.2% |
| Not measured | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 54.5% | 54 | +3.0% |
| Medium turnover | 24.2% | 23 | +11.4% |
| High turnover | 9.9% | 19 | -26.0% |
| Unknown | 11.4% | 6 | -16.3% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 15.1% | 15 | -14.5% |
| Medium horizon | 7.8% | 16 | +47.2% |
| Long horizon | 64.4% | 64 | -6.3% |
| Unknown | 12.7% | 7 | +27.4% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 12.4% | 11 | +295.5% |
| $1B to $10B | 9.1% | 24 | -49.4% |
| $10B to $100B | 34.1% | 27 | +71.0% |
| $100B or more | 44.4% | 40 | -26.8% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 2.0% | 13 | +30492.4% |
| Pooled investment vehicles | 22.7% | 17 | +24.0% |
| Registered funds and BDCs | 20.7% | 9 | +20.1% |
| Pension and profit sharing plans | 1.2% | 1 | +1850.9% |
| Insurance companies | 0.1% | 2 | -0.1% |
| Governments and sovereign funds | 0.5% | 3 | -84.0% |
| Other investment advisers | 0.0% | 1 | new |
| Diversified | 4.4% | 7 | -72.7% |
| Unknown | 48.4% | 49 | +3.1% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 27.6% | 20 | +18.6% |
| Private equity funds | 0.0% | 2 | -0.1% |
| Venture capital funds | 0.0% | 1 | new |
| Real estate funds | 0.0% | 2 | +7648.0% |
| Securitized asset funds | 0.0% | 0 | — |
| Other private funds | 3.4% | 5 | +190.3% |
| Mixed private funds | 0.4% | 2 | -95.9% |
| Private funds, type not stated | 11.0% | 2 | +48.4% |
| No private funds | 9.2% | 20 | -28.9% |
| Unknown | 48.3% | 48 | +3.0% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 97.3% | 90 | +1.2% |
| Outside the US | 2.7% | 12 | -50.8% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
102 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $6,077,894 (1 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 47.0% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shareholder Targets
13F filers that own its peers but not LMRI, quarter ended Jun 30, 2026Found through its holder-overlap peers: AMZN, MSFT, GOOGL. 6,814 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Invesco Ltd. Adviser, Diversified active | $127,707,559,696 3 held | GOOGL, MSFT, AMZN |
| 2 | NORGES BANK Non-US, Index-like | $127,171,428,836 3 held | GOOGL, MSFT, AMZN |
| 3 | Capital Research Global Investors Adviser, Diversified active | $103,443,590,922 3 held | GOOGL, MSFT, AMZN |
| 4 | Capital World Investors Adviser, Diversified active | $79,527,421,385 3 held | GOOGL, MSFT, AMZN |
| 5 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser, Index-like | $66,899,173,792 3 held | GOOGL, MSFT, AMZN |
| 6 | Capital International Investors Adviser, Diversified active | $54,479,791,764 3 held | GOOGL, MSFT, AMZN |
| 7 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $52,857,574,700 3 held | GOOGL, MSFT, AMZN |
| 8 | Amundi Holding company, Index-like | $51,882,232,505 3 held | GOOGL, MSFT, AMZN |
| 9 | Berkshire Hathaway Inc Insurer, Concentrated | $37,764,088,381 1 held | GOOGL |
| 10 | Fisher Asset Management, LLC Adviser, Diversified active | $33,153,070,401 3 held | GOOGL, MSFT, AMZN |
Fund Ownership of LMRI by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 2.99% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.85% | 815,038 |
| Index ETFs | 2.14% | 2,056,239 |
| Active ETFs | 0.00% | 0 |
| Active funds | 13.07% | 12,561,301 |
| Unclassified | 0.19% | 184,047 |
| All registered funds | 16.25% | 15,616,625 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Large BROWN ADVISORY INC | $65,171,033 | 18.38% | 5,777,574 | Shares | 2026-08-14 | |
| Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Registered adviser | $38,957,993 | 10.99% | 3,453,723 | Shares | 2026-08-03 | |
| Small Think Investments LP Registered adviser | $28,871,171 | 8.14% | 2,559,501 | Shares | 2026-08-14 | |
| Mega Jupiter Topco LLC | $24,269,348 | 6.84% | 2,151,538 | Shares | 2026-08-14 | |
| Mega BlackRock, Inc. Holding company | $15,770,701 | 4.45% | 1,398,112 | Shares | 2026-08-07 | |
| Mega JPMORGAN CHASE & CO Bank | $13,022,341 | 3.67% | 1,154,463 | Shares | 2026-08-12 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $12,073,266 | 3.40% | 1,070,325 | Shares | 2026-08-13 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $9,107,787 | 2.57% | 807,428 | Shares | 2026-08-14 | |
| Large ROYCE & ASSOCIATES LP Registered adviser | $8,900,371 | 2.51% | 789,040 | Shares | 2026-08-14 | |
| Large Schonfeld Strategic Advisors LLC Registered adviser | $8,673,079 | 2.45% | 768,890 | Shares | 2026-08-14 | |
| Small BRIGADE CAPITAL MANAGEMENT, LP Registered adviser | $7,511,352 | 2.12% | 665,900 | Shares | 2026-08-14 | |
| Large RTW INVESTMENTS, LP Registered adviser | $7,332,000 | 2.07% | 650,000 | Shares | 2026-08-14 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $7,083,715 | 2.00% | 627,989 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $7,064,866 | 1.99% | 626,318 | Shares | 2026-08-12 | |
| Large ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser | $7,053,045 | 1.99% | 625,270 | Shares | 2026-08-14 | |
| Mid ArrowMark Colorado Holdings LLC Registered adviser | $6,791,112 | 1.92% | 602,049 | Shares | 2026-08-13 | |
| Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US | $6,768,000 | 1.91% | 600,000 | Shares | 2026-08-13 | |
| Mid Longaeva Partners L.P. | $5,964,875 | 1.68% | 528,801 | Shares | 2026-08-14 | |
| Large SILVERCREST ASSET MANAGEMENT GROUP LLC Registered adviser | $5,271,583 | 1.49% | 467,339 | Shares | 2026-08-14 | |
| Mega STATE STREET CORP Bank | $5,178,963 | 1.46% | 459,128 | Shares | 2026-09-22 | |
| Mega FRANKLIN RESOURCES INC Adviser | $5,059,564 | 1.43% | 448,543 | Shares | 2026-08-13 | |
| Small Bullseye Asset Management LLC Registered adviser | $4,401,286 | 1.24% | 390,185 | Shares | 2026-08-12 | |
| Mid Prescott Group Capital Management, L.L.C. Registered adviser | $4,027,524 | 1.14% | 357,050 | Shares | 2026-08-07 | |
| Large KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC Registered adviser | $3,304,148 | 0.93% | 292,921 | Shares | 2026-08-13 | |
| Large Point72 Asset Management, L.P. Registered adviser | $3,169,262 | 0.89% | 280,963 | Shares | 2026-08-14 | |
| Small Select Asset Management & Trust | $3,135,840 | 0.88% | 278,000 | Shares | 2026-08-11 | |
| Mid Granahan Investment Management, LLC Registered adviser | $2,968,399 | 0.84% | 263,156 | Shares | 2026-08-14 | |
| Mid READYSTATE ASSET MANAGEMENT LP Registered adviser | $2,826,012 | 0.80% | 250,533 | Shares | 2026-08-14 | |
| Mega SEI INVESTMENTS CO Holding company | $2,530,588 | 0.71% | 224,343 | Shares | 2026-08-14 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $2,259,226 | 0.64% | 200,286 | Shares | 2026-08-13 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $2,234,094 | 0.63% | 198,058 | Shares | 2026-08-14 | |
| Mid BECK MACK & OLIVER LLC Registered adviser | $1,925,496 | 0.54% | 170,700 | Shares | 2026-08-14 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $1,842,813 | 0.52% | 163,370 | Shares | 2026-08-13 | |
| Mega NORTHERN TRUST CORP Bank | $1,832,107 | 0.52% | 162,421 | Shares | 2026-08-13 | |
| Mega FMR LLC Holding company | $1,711,029 | 0.48% | 151,687 | Shares | 2026-08-13 | |
| Large STATE OF WISCONSIN INVESTMENT BOARD Benefit plan | $1,652,362 | 0.47% | 146,486 | Shares | 2026-08-14 | |
| Mid XTX Topco Ltd | $1,550,661 | 0.44% | 137,470 | Shares | 2026-08-14 | |
| Mid SEVEN GRAND MANAGERS, LLC Registered adviser | $1,240,800 | 0.35% | 110,000 | Shares | 2026-08-14 | |
| Large Trexquant Investment LP Registered adviser | $1,167,209 | 0.33% | 103,476 | Shares | 2026-08-14 | |
| Mid HARBOR CAPITAL ADVISORS, INC. Registered adviser | $1,102,684 | 0.31% | 107,579 | Shares | 2026-10-22 | |
| Mid EMERALD MUTUAL FUND ADVISERS TRUST Registered adviser | $1,083,398 | 0.31% | 96,046 | Shares | 2026-08-05 | |
| Mid F/m Investments LLC Registered adviser | $1,083,398 | 0.31% | 96,046 | Shares | 2026-08-05 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $944,824 | 0.27% | 83,761 | Shares | 2026-08-14 | |
| Large FEDERATED HERMES, INC. Adviser | $902,400 | 0.25% | 80,000 | Shares | 2026-08-12 | |
| Large Squarepoint Ops LLC Registered adviser | $901,655 | 0.25% | 79,934 | Shares | 2026-08-14 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $882,286 | 0.25% | 78,217 | Shares | 2026-08-14 | |
| Mid Ghisallo Capital Management LLC Registered adviser | $846,000 | 0.24% | 75,000 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank | $755,172 | 0.21% | 66,948 | Shares | 2026-08-13 | |
| Mega Bank of New York Mellon Corp Bank | $709,385 | 0.20% | 62,889 | Shares | 2026-08-06 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $613,395 | 0.17% | 54,379 | Shares | 2026-09-02 | |
| Mega MORGAN STANLEY Holding company | $438,372 | 0.12% | 38,863 | Shares | 2026-08-13 | |
| Mega RAYMOND JAMES FINANCIAL INC | $410,399 | 0.12% | 36,383 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $366,825 | 0.10% | 32,520 | Shares | 2026-08-11 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $364,704 | 0.10% | 32,332 | Shares | 2026-08-14 | |
| Mid Virtu Financial LLC | $346,183 | 0.10% | 30,690 | Shares | 2026-08-13 | |
| Mega D. E. Shaw & Co., Inc. | $313,584 | 0.09% | 27,800 | Shares | 2026-08-14 | |
| Mid EMERALD ADVISERS, LLC Registered adviser | $275,694 | 0.08% | 24,441 | Shares | 2026-08-05 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $252,085 | 0.07% | 22,348 | Shares | 2026-08-12 | |
| Large Brevan Howard Capital Management LP Exempt adviser | $220,298 | 0.06% | 19,530 | Shares | 2026-08-14 | |
| Mega DEUTSCHE BANK AG\ Non-US | $208,713 | 0.06% | 18,503 | Shares | 2026-08-07 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $201,618 | 0.06% | 17,874 | Shares | 2026-08-14 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $199,644 | 0.06% | 17,699 | Shares | 2026-08-14 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $171,456 | 0.05% | 15,200 | Shares | 2026-08-14 | |
| Large MetLife Investment Management, LLC Registered adviser | $162,623 | 0.05% | 14,417 | Shares | 2026-08-14 | |
| Mega Russell Investments Group, Ltd. | $130,058 | 0.04% | 11,530 | Shares | 2026-08-06 | |
| Small AXQ CAPITAL, LP Registered adviser | $128,095 | 0.04% | 11,356 | Shares | 2026-08-06 | |
| Mega CITIGROUP INC Bank | $98,631 | 0.03% | 8,744 | Shares | 2026-08-03 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $98,542 | 0.03% | 8,736 | Shares | 2026-08-14 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $95,880 | 0.03% | 8,500 | Shares | 2026-07-29 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $82,208 | 0.02% | 7,288 | Shares | 2026-08-13 | |
| Mega PNC FINANCIAL SERVICES GROUP, INC. Bank | $81,756 | 0.02% | 7,248 | Shares | 2026-08-07 | |
| Large Police & Firemen's Retirement System of New Jersey | $55,317 | 0.02% | 4,904 | Shares | 2026-07-23 | |
| Small Aster Capital Management (DIFC) Ltd | $50,139 | 0.01% | 4,445 | Shares | 2026-08-14 | |
| Large STRS OHIO Benefit plan | $49,632 | 0.01% | 4,400 | Shares | 2026-07-30 | |
| Large Balyasny Asset Management L.P. Registered adviser | $46,834 | 0.01% | 4,152 | Shares | 2026-08-14 | |
| Mid State of Alaska, Department of Revenue | $46,412 | 0.01% | 4,528 | Shares | 2026-10-15 | |
| Mega BARCLAYS PLC Bank | $38,306 | 0.01% | 3,396 | Shares | 2026-08-14 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $32,712 | 0.01% | 2,900 | Shares | 2026-08-13 | |
| Mid Tower Research Capital LLC (TRC) | $28,222 | 0.01% | 2,502 | Shares | 2026-08-11 | |
| Mid Ameritas Investment Partners, Inc. Registered adviser | $23,372 | 0.01% | 2,072 | Shares | 2026-08-13 | |
| Large Arax Advisory Partners Registered adviser | $20,890 | 0.01% | 1,852 | Shares | 2026-08-10 | |
| Mega Legal & General Group Plc | $19,582 | 0.01% | 1,736 | Shares | 2026-08-14 | |
| Mega ROYAL BANK OF CANADA Bank | $13,310 | 0.00% | 1,180 | Shares | 2026-08-14 | |
| Large BESSEMER GROUP INC | $7,501 | 0.00% | 665 | Shares | 2026-08-12 | |
| Large Farther Finance Advisors, LLC Registered adviser | $4,120 | 0.00% | 402 | Shares | 2026-10-08 | |
| Mid Sterling Capital Management LLC Registered adviser | $3,833 | 0.00% | 374 | Shares | 2026-10-22 | |
| Mid SBI Securities Co., Ltd. Non-US | $3,259 | 0.00% | 318 | Shares | 2026-10-22 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $2,944 | 0.00% | 261 | Shares | 2026-08-24 | |
| Mid IFP Advisors, Inc Registered adviser | $2,911 | 0.00% | 284 | Shares | 2026-10-16 | |
| Large OSAIC HOLDINGS, INC. Holding company | $2,425 | 0.00% | 215 | Shares | 2026-08-14 | |
| Small SJS Investment Consulting Inc. Registered adviser | $1,886 | 0.00% | 184 | Shares | 2026-10-26 | |
| Large Allworth Financial LP | $1,590 | 0.00% | 141 | Shares | 2026-08-11 | |
| Small Bare Financial Services, Inc Registered adviser | $1,376 | 0.00% | 122 | Shares | 2026-07-27 | |
| Mid EverSource Wealth Advisors, LLC Registered adviser | $957 | 0.00% | 85 | Shares | 2026-07-24 | |
| Small True Wealth Design, LLC Registered adviser | $850 | 0.00% | 83 | Shares | 2026-10-13 | |
| Mid Root Financial Partners, LLC Registered adviser | $594 | 0.00% | 58 | Shares | 2026-10-21 | |
| Mid GAMMA Investing LLC Registered adviser | $512 | 0.00% | 50 | Shares | 2026-10-08 | |
| Large ASSETMARK, INC Registered adviser | $492 | 0.00% | 48 | Shares | 2026-10-21 | |
| Small Covestor Ltd | $462 | 0.00% | 41 | Shares | 2026-08-07 | |
| Small Essential Partners LLC Registered adviser | $410 | 0.00% | 40 | Shares | 2026-10-14 |
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