New Positions
62 managers initiated
Top five by reported value
Lumexa Imaging Holdings Inc NASDAQ NMS - GLOBAL MARKET:LMRI
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31.
62 new0 added0 reduced0 exited
Total Institutional Holders
62
as of 2025-12-31
Top Holder
ALLIANCEBERNSTEIN L.P.
$59.9M
Largest QoQ Increase
ALLIANCEBERNSTEIN L.P.
+3,238,479 sh
Largest QoQ Decrease
—
New Positions(62)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| ALLIANCEBERNSTEIN L.P. | 3,238,479 | +3,238,479 | $59.9M | +$59.9M | — |
| JANUS HENDERSON GROUP PLC | 1,992,453 | +1,992,453 | $36.9M | +$36.9M | — |
| ArrowMark Colorado Holdings LLC | 1,500,000 | +1,500,000 | $27.8M | +$27.8M | — |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1,500,000 | +1,500,000 | $27.8M | +$27.8M | — |
| Invesco Ltd. | 1,435,807 | +1,435,807 | $26.6M | +$26.6M | — |
| MILLENNIUM MANAGEMENT LLC | 1,290,664 | +1,290,664 | $23.9M | +$23.9M | — |
| Balyasny Asset Management LLC | 1,134,572 | +1,134,572 | $21.0M | +$21.0M | — |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1,046,788 | +1,046,788 | $19.4M | +$19.4M | — |
| GOLDMAN SACHS GROUP INC | 1,019,997 | +1,019,997 | $18.9M | +$18.9M | — |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1,000,013 | +1,000,013 | $18.5M | +$18.5M | — |
| EMERALD ADVISERS, LLC | 932,889 | +932,889 | $17.3M | +$17.3M | — |
| JPMORGAN CHASE & CO | 862,397 | +862,397 | $16.0M | +$16.0M | — |
| CITADEL ADVISORS LLC | 850,000 | +850,000 | $15.7M | +$15.7M | — |
| FMR LLC | 681,700 | +681,700 | $12.6M | +$12.6M | — |
| Woodline Partners LP | 681,163 | +681,163 | $12.6M | +$12.6M | — |
| PRINCIPAL FINANCIAL GROUP INC | 656,261 | +656,261 | $12.1M | +$12.1M | — |
| RTW INVESTMENTS, LP | 650,000 | +650,000 | $12.0M | +$12.0M | — |
| SEVEN GRAND MANAGERS, LLC | 645,500 | +645,500 | $11.9M | +$11.9M | — |
| Zimmer Partners, LP | 610,000 | +610,000 | $11.3M | +$11.3M | — |
| EMERALD MUTUAL FUND ADVISERS TRUST | 588,665 | +588,665 | $10.9M | +$10.9M | — |
| FEDERATED HERMES, INC. | 450,000 | +450,000 | $8.3M | +$8.3M | — |
| Alyeska Investment Group, L.P. | 334,771 | +334,771 | $6.2M | +$6.2M | — |
| Blackstone Inc. | 300,000 | +300,000 | $5.5M | +$5.5M | — |
| JANE STREET GROUP, LLC | 243,313 | +243,313 | $4.5M | +$4.5M | — |
| VANGUARD GROUP INC | 230,000 | +230,000 | $4.3M | +$4.3M | — |
| D. E. Shaw & Co., Inc. | 200,000 | +200,000 | $3.7M | +$3.7M | — |
| Longaeva Partners L.P. | 200,000 | +200,000 | $3.7M | +$3.7M | — |
| MARSHALL WACE, LLP | 171,633 | +171,633 | $3.2M | +$3.2M | — |
| Fortress Investment Group LLC | 152,573 | +152,573 | $2.8M | +$2.8M | — |
| Monashee Investment Management LLC | 150,000 | +150,000 | $2.8M | +$2.8M | — |
| READYSTATE ASSET MANAGEMENT LP | 140,000 | +140,000 | $2.6M | +$2.6M | — |
| Ghisallo Capital Management LLC | 125,000 | +125,000 | $2.3M | +$2.3M | — |
| HBK INVESTMENTS L P | 120,000 | +120,000 | $2.2M | +$2.2M | — |
| AMERIPRISE FINANCIAL INC | 117,698 | +117,698 | $2.2M | +$2.2M | — |
| Squarepoint Ops LLC | 112,188 | +112,188 | $2.1M | +$2.1M | — |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 105,000 | +105,000 | $1.9M | +$1.9M | — |
| BlackRock, Inc. | 100,000 | +100,000 | $1.9M | +$1.9M | — |
| Point72 Asset Management, L.P. | 98,151 | +98,151 | $1.8M | +$1.8M | — |
| ELEMENT CAPITAL MANAGEMENT LLC | 87,352 | +87,352 | $1.6M | +$1.6M | — |
| GEODE CAPITAL MANAGEMENT, LLC | 83,675 | +83,675 | $1.5M | +$1.5M | — |
| Laurion Capital Management LP | 80,000 | +80,000 | $1.5M | +$1.5M | — |
| TEACHER RETIREMENT SYSTEM OF TEXAS | 75,000 | +75,000 | $1.4M | +$1.4M | — |
| TD Asset Management Inc | 68,326 | +68,326 | $1.3M | +$1.3M | — |
| Burkehill Global Management, LP | 50,000 | +50,000 | $925.0K | +$925.0K | — |
| OXFORD ASSET MANAGEMENT LLP | 36,193 | +36,193 | $669.6K | +$669.6K | — |
| SEI INVESTMENTS CO | 20,063 | +20,063 | $371.2K | +$371.2K | — |
| MORGAN STANLEY | 17,533 | +17,533 | $324.4K | +$324.4K | — |
| Legal & General Group Plc | 15,000 | +15,000 | $277.7K | +$277.7K | — |
| TWO SIGMA INVESTMENTS, LP | 13,500 | +13,500 | $249.8K | +$249.8K | — |
| Hudson Bay Capital Management LP | 12,810 | +12,810 | $237.0K | +$237.0K | — |
| Brevan Howard Capital Management LP | 11,340 | +11,340 | $209.8K | +$209.8K | — |
| UBS Group AG | 11,325 | +11,325 | $209.5K | +$209.5K | — |
| Sandia Investment Management LP | 10,000 | +10,000 | $185.0K | +$185.0K | — |
| BARCLAYS PLC | 7,200 | +7,200 | $133.2K | +$133.2K | — |
| T. Rowe Price Investment Management, Inc. | 2,007,483 | +2,007,483 | $37.1K | +$37.1K | — |
| ASSETMARK, INC | 1,957 | +1,957 | $36.2K | +$36.2K | — |
| Aster Capital Management (DIFC) Ltd | 999 | +999 | $18.5K | +$18.5K | — |
| FIRST HORIZON CORP | 521 | +521 | $9.6K | +$9.6K | — |
| SBI Securities Co., Ltd. | 411 | +411 | $7.6K | +$7.6K | — |
| ADVISOR GROUP HOLDINGS, INC. | 215 | +215 | $4.0K | +$4.0K | — |
| MAI Capital Management | 25 | +25 | $463 | +$463 | — |
| BANK OF AMERICA CORP /DE/ | 6 | +6 | $111 | +$111 | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| ALLIANCEBERNSTEIN L.P. | 3,238,479 | $59.9M | +3,238,479 | — |
| JANUS HENDERSON GROUP PLC | 1,992,453 | $36.9M | +1,992,453 | — |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1,500,000 | $27.8M | +1,500,000 | — |
| ArrowMark Colorado Holdings LLC | 1,500,000 | $27.8M | +1,500,000 | — |
| Invesco Ltd. | 1,435,807 | $26.6M | +1,435,807 | — |
| MILLENNIUM MANAGEMENT LLC | 1,290,664 | $23.9M | +1,290,664 | — |
| Balyasny Asset Management LLC | 1,134,572 | $21.0M | +1,134,572 | — |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1,046,788 | $19.4M | +1,046,788 | — |
| GOLDMAN SACHS GROUP INC | 1,019,997 | $18.9M | +1,019,997 | — |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1,000,013 | $18.5M | +1,000,013 | — |
| EMERALD ADVISERS, LLC | 932,889 | $17.3M | +932,889 | — |
| JPMORGAN CHASE & CO | 862,397 | $16.0M | +862,397 | — |
| CITADEL ADVISORS LLC | 850,000 | $15.7M | +850,000 | — |
| FMR LLC | 681,700 | $12.6M | +681,700 | — |
| Woodline Partners LP | 681,163 | $12.6M | +681,163 | — |
| PRINCIPAL FINANCIAL GROUP INC | 656,261 | $12.1M | +656,261 | — |
| RTW INVESTMENTS, LP | 650,000 | $12.0M | +650,000 | — |
| SEVEN GRAND MANAGERS, LLC | 645,500 | $11.9M | +645,500 | — |
| Zimmer Partners, LP | 610,000 | $11.3M | +610,000 | — |
| EMERALD MUTUAL FUND ADVISERS TRUST | 588,665 | $10.9M | +588,665 | — |
New & Closed Positions this quarter
Closed Positions
0 managers exited
Top five by prior-quarter value
No managers exited their positions this quarter.
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for LMRI against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.