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Lumexa Imaging Holdings, Inc. 13F holders

102 funds reported a position in Lumexa Imaging Holdings, Inc. in their 13F for the quarter ended 30 June 2026, together 31.4 million shares worth $354.7 million. Against the quarter before, 30 opened a position, 31 added, 29 trimmed and 18 sold out; together they sold a net 569,818 shares. The largest holders: Brown Advisory Inc., Massachusetts Financial Services Co. and Think Investments LP.

Funds holding102+12 on Q1 2026
Shares they held31.4Mworth $354.7 million
Net sold on the quarter569,818 sharesabout $6.4 million at the funds' values
Funds buying to selling61 to 47opened or added, to cut or sold
Opened 30Added 31Held 11Trimmed 29Sold out 18
Opened: 30 fundsAdded: 31 fundsHeld: 11 fundsTrimmed: 29 fundsSold out: 18 funds

What each fund did in LMRI against its 13F for the quarter before; a change under 0.1% of a holding counts as held

Q4 2025: 62 funds, 28.3 million shares62Q4 2025Q1 2026: 90 funds, 31.9 million shares90Q1 2026Q2 2026: 102 funds, 31.4 million shares102Q2 2026

Funds reporting a position in LMRI in their 13F, each quarter; hover a bar for the shares they held

Filed so far for the quarter to 30 September 2026

3,405 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 19 reported a position in Lumexa Imaging Holdings, Inc.: 4 opened one, 4 added, 3 trimmed and 1 sold out, a net 2.1 million shares bought.

The largest moves in the name among the funds that have filed, against each fund's previous 13F.

The well-known funds

Of the 44 funds followed here, 5 reported a position in Lumexa Imaging Holdings, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Millennium Management, 627,989 shares worth $7.1 million, 0.0% of its reported book. Sold out: Renaissance Technologies, Two Sigma Investments. In the quarter, 1 fund added or opened a position and 6 trimmed or sold out; together they sold a net 1.3 million shares, about $14.7 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
Millennium Management627,989$7.1 million0.0%-86,687trimmed30 June 202613F
Geode Capital Management626,318$7.1 million0.0%-47,816trimmed30 June 202613F
Point72 Asset Management280,963$3.2 million0.0%+179,685added30 June 202613F
FMR LLC151,687$1.7 million0.0%-642,902trimmed30 June 202613F
Citadel Advisors54,379$613,3950.0%-602,206trimmed30 June 202613F
Renaissance Technologies0$00.0%-90,423exited30 June 202613F
Two Sigma Investments0$00.0%-16,894exited30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

The largest holders

FundSharesShare of allValueOf its bookChange in sharesFiling
Brown Advisory Inc.5,777,57418.39%$65.2 million0.10%+4,072,49713F
Massachusetts Financial Services Co.3,453,72310.99%$39.0 million0.01%+1,119,14313F
Think Investments LP2,559,5018.14%$28.9 million3.56%new13F
Jupiter Topco LLC2,151,5386.85%$24.3 million0.01%first 13F13F
BlackRock, Inc.1,398,1124.45%$15.8 million0.00%-127,57113F
JPMorgan Chase & Co.1,154,4633.67%$13.3 million0.00%+49,95613F
Vanguard Capital Management LLC1,070,3253.41%$12.1 million0.00%+11,83913F
Goldman Sachs Group Inc.807,4282.57%$9.1 million0.00%+41,91913F
Royce & Associates LP789,0402.51%$8.9 million0.07%+459,04013F
Schonfeld Strategic Advisors LLC768,8902.45%$8.7 million0.05%+568,18913F
Brigade Capital Management, LP665,9002.12%$7.5 million8.72%new13F
RTW Investments, LP650,0002.07%$7.3 million0.06%no change13F
Millennium Management LLC627,9892.00%$7.1 million0.01%-86,68713F
Geode Capital Management, LLC626,3181.99%$7.1 million0.00%-47,81613F
Adage Capital Partners GP, L.l.c.625,2701.99%$7.1 million0.01%+206,74213F
ArrowMark Colorado Holdings LLC602,0491.92%$6.8 million0.28%-1,051,20913F
Healthcare of Ontario Pension Plan Trust Fund600,0001.91%$6.8 million0.01%-700,00013F
Longaeva Partners L.P.528,8011.68%$6.0 million0.17%-28,62213F
Silvercrest Asset Management Group LLC467,3391.49%$5.3 million0.04%new13F
State Street Corp.459,1281.46%$5.2 million0.00%+82,33613F
Franklin Resources Inc.448,5431.43%$5.1 million0.00%+125,64213F
Bullseye Asset Management LLC390,1851.24%$4.4 million2.24%+370,18513F
Prescott Group Capital Management, L.L.C.357,0501.14%$4.0 million0.35%no change13F
Kayne Anderson Rudnick Investment Management LLC292,9210.93%$3.3 million0.01%-12,65613F
Point72 Asset Management, L.P.280,9630.89%$3.2 million0.01%+179,68513F
Select Asset Management & Trust278,0000.88%$3.1 million0.90%new13F
Granahan Investment Management, LLC263,1560.84%$3.0 million0.11%new13F
Readystate Asset Management LP250,5330.80%$2.8 million0.19%+25,77813F
Sei Investments Co.224,3430.71%$2.5 million0.00%+136,15313F
Vanguard Portfolio Management LLC200,2860.64%$2.3 million0.00%+53,41413F
Charles Schwab Investment Management Inc.198,0580.63%$2.2 million0.00%-11,39313F
Beck Mack & Oliver LLC170,7000.54%$1.9 million0.04%new13F
Vanguard Fiduciary Trust Co.163,3700.52%$1.8 million0.00%+2,01913F
Northern Trust Corp.162,4210.52%$1.8 million0.00%-19,00913F
FMR LLC151,6870.48%$1.7 million0.00%-642,90213F
State of Wisconsin Investment Board146,4860.47%$1.7 million0.00%new13F
XTX Topco Ltd137,4700.44%$1.6 million0.02%-94,88813F
Seven Grand Managers, LLC110,0000.35%$1.2 million0.05%no change13F
Trexquant Investment LP103,4760.33%$1.2 million0.01%new13F
Emerald Mutual Fund Advisers Trust96,0460.31%$1.1 million0.04%-557,29613F
F/m Investments LLC96,0460.31%$1.1 million0.06%+1,06913F
Ameriprise Financial Inc.83,7610.27%$944,8240.00%-43,24813F
Federated Hermes, Inc.80,0000.25%$902,4000.00%-490,00013F
Squarepoint Ops LLC79,9340.25%$901,6560.00%+66,76313F
AQR Capital Management LLC78,2170.25%$882,2870.00%new13F
Ghisallo Capital Management LLC75,0000.24%$846,0000.02%no change13F
UBS Group AG66,9480.21%$755,1740.00%-108,23713F
Bank of New York Mellon Corp62,8890.20%$709,3880.00%+7,18313F
Harbor Capital Advisors, Inc.61,6060.20%$695,0000.05%new13F
Citadel Advisors LLC54,3790.17%$613,3950.00%-602,20613F
The 50 largest of the 102 funds that reported a position in LMRI in their 13F for the quarter ended 30 June 2026, by the value each reported.
Read moreShare of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
14 August 202613GBrown Advisory Inc and 7 others5.8 million6.1%30 June 2026passive, institutional (13d-1(b))EDGAR
13 February 202613GWelsh, Carson, Anderson & Stowe XII, L.P. and 5 others70.2 million74.3%31 December 2025passive, other (13d-1(d))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13G

Fails to deliver

Settlement dateShares failedPriceFile
21 August 20261,610$11.68SEC
18 August 2026331$11.81SEC
13 August 20261,588$11.73SEC
31 July 202686$10.25SEC
21 July 202621,128$11.10SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 21,128 on 21 July 2026. A fail is an operational fact about settlement, not a position.