MD Pediatrix Medical Group, Inc.
Pediatrix Medical Group, Inc. (MD) Institutional Ownership
What the institutions did with MD last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 13.7M | 16.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.0M | 7.2% |
| DIMENSIONAL FUND ADVISORS LP | 4.2M | 5.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.6M | 4.3% |
| STATE STREET CORP | 3.5M | 4.2% |
| VICTORY CAPITAL MANAGEMENT INC | 3.4M | 4.1% |
| WASATCH ADVISORS LP | 2.5M | 3.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2M | 2.7% |
| AMERICAN CENTURY COMPANIES INC | 2.2M | 2.6% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.7M | 2.1% |
| Allspring Global Investments Holdings, LLC | 1.6M | 1.9% |
| D. E. Shaw & Co., Inc. | 1.6M | 1.9% |
| Rockefeller Capital Management L.P. | 1.3M | 1.6% |
| MORGAN STANLEY | 1.3M | 1.6% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3M | 1.5% |
| RENAISSANCE TECHNOLOGIES LLC | 1.3M | 1.5% |
| LSV ASSET MANAGEMENT | 1.2M | 1.4% |
| Invesco Ltd. | 1.2M | 1.4% |
| Public Sector Pension Investment Board | 987.9K | 1.2% |
| NORTHERN TRUST CORP | 934.3K | 1.1% |
| ROYCE & ASSOCIATES LP | 914.3K | 1.1% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 912.4K | 1.1% |
| Nuveen, LLC | 868.3K | 1.0% |
| GOLDMAN SACHS GROUP INC | 825.6K | 1.0% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 761.6K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| AMERICAN CENTURY COMPANIES INC | Reduced | 3.9M | 2.2M | -1.7M |
| FMR LLC | Reduced | 2.3M | 741.4K | -1.5M |
| Allspring Global Investments Holdings, LLC | Increased | 975.1K | 1.6M | +643.8K |
| LSV ASSET MANAGEMENT | Increased | 577.0K | 1.2M | +615.3K |
| Rockefeller Capital Management L.P. | Increased | 762.5K | 1.3M | +576.1K |
| Public Sector Pension Investment Board | Increased | 421.4K | 987.9K | +566.5K |
| FULLER & THALER ASSET MANAGEMENT, INC. | Increased | 1.2M | 1.7M | +492.0K |
| WASATCH ADVISORS LP | Increased | 2.1M | 2.5M | +448.4K |
| Tidal Investments LLC | Increased | 174.1K | 616.0K | +442.0K |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | 3.8M | 3.4M | -425.0K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 3.9M | 4.2M | +363.4K |
| Invesco Ltd. | Increased | 922.2K | 1.2M | +251.4K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 1.5M | 1.3M | -245.0K |
| CastleKnight Management LP | Reduced | 642.0K | 405.9K | -236.2K |
| ROYCE & ASSOCIATES LP | Increased | 678.8K | 914.3K | +235.6K |
| Edgestream Partners, L.P. | New | 0 | 184.9K | +184.9K |
| JANE STREET GROUP, LLC | Reduced | 218.7K | 38.0K | -180.6K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 6.2M | 6.0M | -169.0K |
| Pacer Advisors, Inc. | Reduced | 506.8K | 347.3K | -159.5K |
| STATE STREET CORP | Increased | 3.4M | 3.5M | +154.7K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Reduced | 1.4M | 1.3M | -149.2K |
| BlackRock, Inc. | Increased | 13.6M | 13.7M | +139.9K |
| UBS Group AG | Increased | 296.5K | 435.8K | +139.3K |
| RAYMOND JAMES FINANCIAL INC | Increased | 454.7K | 563.5K | +108.7K |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | Sold Out | 108.4K | 0 | -108.4K |
| GREAT LAKES ADVISORS, LLC | Sold Out | 105.6K | 0 | -105.6K |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | Increased | 286.3K | 389.1K | +102.8K |
| Integrated Quantitative Investments LLC | New | 0 | 97.0K | +97.0K |
| Empowered Funds, LLC | Reduced | 595.5K | 500.1K | -95.4K |
| D. E. Shaw & Co., Inc. | Reduced | 1.7M | 1.6M | -95.3K |
| Inspire Investing, LLC | New | 0 | 94.4K | +94.4K |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 560.6K | 471.3K | -89.3K |
| Russell Investments Group, Ltd. | Increased | 212.6K | 300.7K | +88.1K |
| CWA Asset Management Group, LLC | New | 0 | 88.1K | +88.1K |
| Nuveen, LLC | Reduced | 953.1K | 868.3K | -84.8K |
| ArrowMark Colorado Holdings LLC | Reduced | 286.7K | 202.6K | -84.1K |
| OBERWEIS ASSET MANAGEMENT INC/ | Reduced | 701.1K | 623.1K | -78.0K |
| MORGAN STANLEY | Increased | 1.3M | 1.3M | +77.9K |
| Engineers Gate Manager LP | Reduced | 127.4K | 49.9K | -77.5K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 544.2K | 619.9K | +75.8K |
| CITADEL ADVISORS LLC | Sold Out | 73.0K | 0 | -73.0K |
| HRT FINANCIAL LP | Sold Out | 71.8K | 0 | -71.8K |
| CSM Advisors, LLC | Increased | 362.3K | 433.6K | +71.4K |
| BANK OF AMERICA CORP /DE/ | Reduced | 379.9K | 309.4K | -70.5K |
| Aristotle Capital Boston, LLC | Reduced | 387.8K | 318.2K | -69.6K |
| BRANDES INVESTMENT PARTNERS, LP | Reduced | 465.9K | 402.1K | -63.8K |
| Cerity Partners LLC | Increased | 29.7K | 88.1K | +58.4K |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Reduced | 970.6K | 912.4K | -58.2K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | New | 0 | 57.4K | +57.4K |
| MILLENNIUM MANAGEMENT LLC | New | 0 | 55.1K | +55.1K |
| State of New Jersey Common Pension Fund D | New | 0 | 53.4K | +53.4K |
| BURNEY CO/ | Increased | 52.8K | 105.0K | +52.2K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | Increased | 33.6K | 83.8K | +50.2K |
| VARCOV Co. | Increased | 12.1K | 60.4K | +48.3K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 56.2K | 7.9K | -48.3K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 81.9K | 129.6K | +47.6K |
| Allianz Asset Management GmbH | Increased | 448.4K | 495.6K | +47.2K |
| RITHOLTZ WEALTH MANAGEMENT | Increased | 143.7K | 189.4K | +45.8K |
| Dana Investment Advisors, Inc. | Reduced | 727.2K | 681.7K | -45.5K |
| Eurizon Capital SGR S.p.A. | Increased | 1.6K | 45.6K | +44.1K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.