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Institutional Ownership · SEC Form 13F

Who owns Pediatrix Medical Group (MD)


Which tracked institutional funds hold MD, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MD company fundamentals →

Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

279
Institutional holders
81M
Shares held (tracked funds)
97.1%
Of shares outstanding

How the tape is positioned

98 tracked funds added or opened MD while 34 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

MD’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes MD more heavily than its largest holder by dollar value does.

Book-share is each fund’s reported value in MD divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2026-Q1 and 2026-Q2, across 278 tracked filers holding MD, 143 increased or opened the position and 147 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in MD between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.

New buyers 12

  • Edgestream Partners, L.P.$5M
  • Integrated Quantitative Investments LLC$2M
  • Inspire Investing, LLC$2M
  • CWA Asset Management Group, LLC$2M
  • NOMURA ASSET MANAGEMENT INTERNATIONAL INC.$1M
  • MILLENNIUM MANAGEMENT LLC$1M

Full exits 20

  • LSV ASSET MANAGEMENT$12M
  • CSM Advisors, LLC$8M
  • LORD, ABBETT & CO. LLC$5M
  • BESSEMER GROUP INC$3M
  • DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main$2M
  • GREAT LAKES ADVISORS, LLC$2M

Largest adds

  • BlackRock, Inc.$153M
  • DIMENSIONAL FUND ADVISORS LP$24M
  • Allspring Global Investments Holdings, LLC$22M
  • VANGUARD PORTFOLIO MANAGEMENT LLC$20M
  • WASATCH ADVISORS LP$19M
  • Rockefeller Capital Management L.P.$18M

Largest trims

  • FMR LLC$30M
  • AMERICAN CENTURY COMPANIES INC$28M
  • JANE STREET GROUP, LLC$4M
  • CastleKnight Management LP$3M
  • Engineers Gate Manager LP$1M
  • ArrowMark Colorado Holdings LLC$1M

Institutional holders

One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.

FundSharesReported value% of valueQuarter
BlackRock, Inc. added13,714,275$347M17.7%2026-Q2
VANGUARD PORTFOLIO MANAGEMENT LLC trimmed5,985,147$152M7.7%2026-Q2
DIMENSIONAL FUND ADVISORS LP added4,220,311$107M5.4%2026-Q2
VANGUARD CAPITAL MANAGEMENT LLC trimmed3,620,040$92M4.7%2026-Q2
STATE STREET CORP added3,533,248$89M4.6%2026-Q2
VICTORY CAPITAL MANAGEMENT INC trimmed3,416,913$87M4.4%2026-Q2
WASATCH ADVISORS LP added2,498,884$63M3.2%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC added2,226,028$56M2.9%2026-Q2
AMERICAN CENTURY COMPANIES INC trimmed2,192,017$56M2.8%2026-Q2
FULLER & THALER ASSET MANAGEMENT, INC. added1,721,451$44M2.2%2026-Q2
Allspring Global Investments Holdings, LLC added1,618,910$42M2.2%2026-Q2
D. E. Shaw & Co., Inc. trimmed1,613,100$41M2.1%2026-Q2
Rockefeller Capital Management L.P. added1,338,592$34M1.7%2026-Q2
MORGAN STANLEY added1,328,477$34M1.7%2026-Q2
CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed1,294,185$33M1.7%2026-Q2
RENAISSANCE TECHNOLOGIES LLC trimmed1,287,300$33M1.7%2026-Q2
Invesco Ltd. added1,173,609$30M1.5%2026-Q2
Public Sector Pension Investment Board added987,860$25M1.3%2026-Q2
NORTHERN TRUST CORP added934,307$24M1.2%2026-Q2
ROYCE & ASSOCIATES LP added914,348$23M1.2%2026-Q2
SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed912,380$23M1.2%2026-Q2
Nuveen, LLC trimmed868,272$22M1.1%2026-Q2
GOLDMAN SACHS GROUP INC trimmed825,636$21M1.1%2026-Q2
BRIDGEWAY CAPITAL MANAGEMENT, LLC added761,642$19M1.0%2026-Q2
ALLIANCEBERNSTEIN L.P. trimmed761,010$16M0.8%2026-Q2
FMR LLC trimmed741,386$19M1.0%2026-Q2
Dana Investment Advisors, Inc. trimmed681,748$17M0.9%2026-Q2
AMERIPRISE FINANCIAL INC trimmed663,400$17M0.9%2026-Q2
OBERWEIS ASSET MANAGEMENT INC/ trimmed623,087$16M0.8%2026-Q2
PANAGORA ASSET MANAGEMENT INC added619,935$16M0.8%2026-Q2
Tidal Investments LLC added616,048$16M0.8%2026-Q2
Bank of New York Mellon Corp trimmed564,419$14M0.7%2026-Q2
RAYMOND JAMES FINANCIAL INC added563,461$14M0.7%2026-Q2
VANGUARD FIDUCIARY TRUST CO trimmed533,800$14M0.7%2026-Q2
Empowered Funds, LLC trimmed500,118$13M0.6%2026-Q2
Allianz Asset Management GmbH added494,286$13M0.6%2026-Q2
AQR CAPITAL MANAGEMENT LLC trimmed471,289$12M0.6%2026-Q2
Hillsdale Investment Management Inc. added464,340$12M0.6%2026-Q2
PRINCIPAL FINANCIAL GROUP INC trimmed461,334$12M0.6%2026-Q2
UBS Group AG added435,819$11M0.6%2026-Q2
ENVESTNET ASSET MANAGEMENT INC added427,404$11M0.6%2026-Q2
FRANKLIN RESOURCES INC added421,256$11M0.5%2026-Q2
CastleKnight Management LP trimmed405,866$10M0.5%2026-Q2
BRANDES INVESTMENT PARTNERS, LP trimmed402,140$10M0.5%2026-Q2
O'SHAUGHNESSY ASSET MANAGEMENT, LLC added389,080$10M0.5%2026-Q2
Aristotle Capital Boston, LLC trimmed318,184$8M0.4%2026-Q2
BANK OF AMERICA CORP /DE/ trimmed309,413$8M0.4%2026-Q2
Russell Investments Group, Ltd. added300,671$8M0.4%2026-Q2
PRUDENTIAL FINANCIAL INC trimmed283,687$7M0.4%2026-Q2
Phocas Financial Corp. trimmed248,762$6M0.3%2026-Q2
TEACHER RETIREMENT SYSTEM OF TEXAS trimmed239,421$6M0.3%2026-Q2
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed227,836$6M0.3%2026-Q2
NORDEA INVESTMENT MANAGEMENT AB trimmed220,149$5M0.3%2026-Q2
JPMORGAN CHASE & CO trimmed209,894$5M0.3%2026-Q2
ArrowMark Colorado Holdings LLC trimmed202,555$5M0.3%2026-Q2
RITHOLTZ WEALTH MANAGEMENT added189,431$5M0.2%2026-Q2
RHUMBLINE ADVISERS trimmed187,732$5M0.2%2026-Q2
Edgestream Partners, L.P. added184,928$5M0.2%2026-Q2
FIRST TRUST ADVISORS LP added184,908$5M0.2%2026-Q2
Legal & General Group Plc trimmed183,099$5M0.2%2026-Q2
LAZARD ASSET MANAGEMENT LLC added179,784$5M0.2%2026-Q2
BNP PARIBAS FINANCIAL MARKETS added177,038$4M0.2%2026-Q2
Swiss National Bank trimmed166,700$4M0.2%2026-Q2
MARTINGALE ASSET MANAGEMENT L P trimmed154,232$4M0.2%2026-Q2
CLARK ESTATES INC/NY added153,000$4M0.2%2026-Q2
Bridge City Capital, LLC trimmed146,000$4M0.2%2026-Q2
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added129,574$3M0.2%2026-Q2
SEGALL BRYANT & HAMILL, LLC trimmed127,982$3M0.2%2026-Q2
Qube Research & Technologies Ltd trimmed121,250$3M0.2%2026-Q2
NEW YORK STATE COMMON RETIREMENT FUND trimmed120,439$3M0.2%2026-Q2
SEI INVESTMENTS CO trimmed120,378$3M0.2%2026-Q2
RBF Capital, LLC115,000$3M0.1%2026-Q2
BNP PARIBAS ASSET MANAGEMENT Holding S.A. trimmed114,240$3M0.1%2026-Q2
PRICE T ROWE ASSOCIATES INC /MD/ added112,020$3M0.1%2026-Q2
ZACKS INVESTMENT MANAGEMENT added109,134$3M0.1%2026-Q2
WEDGE CAPITAL MANAGEMENT L L P/NC trimmed109,110$3M0.1%2026-Q2
BURNEY CO/ added104,951$3M0.1%2026-Q2
Integrated Quantitative Investments LLC added97,040$2M0.1%2026-Q2
INTECH INVESTMENT MANAGEMENT LLC added95,910$2M0.1%2026-Q2
Inspire Investing, LLC added94,392$2M0.1%2026-Q2
Vanguard Global Advisers, LLC trimmed88,425$2M0.1%2026-Q2
Cerity Partners LLC added88,090$2M0.1%2026-Q2
CWA Asset Management Group, LLC new88,074$2M0.1%2026-Q2
WELLS FARGO & COMPANY/MN added86,459$2M0.1%2026-Q2
DEUTSCHE BANK AG\ added86,424$2M0.1%2026-Q2
Universal- Beteiligungs- und Servicegesellschaft mbH added83,763$2M0.1%2026-Q2
Gotham Asset Management, LLC trimmed82,776$2M0.1%2026-Q2
XTX Topco Ltd added76,664$2M0.1%2026-Q2
HSBC HOLDINGS PLC trimmed73,605$2M0.1%2026-Q2
EXCHANGE TRADED CONCEPTS, LLC added73,142$2M0.1%2026-Q2
CITIGROUP INC added73,041$2M0.1%2026-Q2
LPL Financial LLC added70,400$2M0.1%2026-Q2
Legato Capital Management LLC added68,916$2M0.1%2026-Q2
Creative Planning added67,488$2M0.1%2026-Q2
STATE OF WISCONSIN INVESTMENT BOARD added67,107$2M0.1%2026-Q2
HUSSMAN STRATEGIC ADVISORS, INC.63,000$2M0.1%2026-Q2
VARCOV Co. added60,414$2M0.1%2026-Q2
NOMURA HOLDINGS INC trimmed60,246$2M0.1%2026-Q2
VANGUARD ASSET MANAGEMENT, Ltd60,017$2M0.1%2026-Q2
JONES FINANCIAL COMPANIES LLLP added59,906$1M0.1%2026-Q2

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership