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Equibles

MD

Pediatrix Medical Group, Inc.

Company with tickers: MD

CIK
893949
CUSIP
58502B106
Shares Outstanding
82,121,911
13F Activity (30d)
181 filings 174 filers

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.

Holders: 294
Total Value: $1,765,516,590
Total Shares: 82,539,355
Showing 1–100 of 294 holdings by value · page 1 of 3

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 294 13F filers · Δ vs Dec 31, 2025
Top Holder
16.4%
Jun 2023 → Mar 2026 · range 15.7% – 17.5%
+0.1 pts
Top 5
38.0%
Jun 2023 → Mar 2026 · range 38.0% – 55.7%
−4.7 pts
Top 10
54.4%
Jun 2023 → Mar 2026 · range 54.4% – 70.7%
−2.0 pts
HHI
486
Jun 2023 → Mar 2026 · range 486 – 747
Broadly held −80

Quarterly Activity

vs Dec 31, 2025
New
39
Increased
105
Decreased
99
Sold Out
45
Unchanged
51
Holder count: -6
Institutional value: -0.4%
Shares held: -0.4%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mid ROYCE & ASSOCIATES LP +424,022 678,770
Mega FRANKLIN RESOURCES INC +340,271 415,790
Large Allspring Global Investments Holdings, LLC +335,733 975,133
Mega DIMENSIONAL FUND ADVISORS LP +287,696 3,856,915
Mid CastleKnight Management LP +245,970 642,036

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Large Qube Research & Technologies Ltd −579,821 147,527
Mega JPMORGAN CHASE & CO −477,762 232,955
Mega UBS Group AG −289,268 296,482
Mid ArrowMark Colorado Holdings LLC −279,641 286,669
Mega Nuveen, LLC −247,111 953,099

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 6,154,126 $131,636,755
Mega VANGUARD CAPITAL MANAGEMENT LLC 3,656,321 $78,208,706
Large WASATCH ADVISORS LP 2,050,524 $43,860,708
Mega VANGUARD FIDUCIARY TRUST CO 545,600 $11,670,384
Mega Vanguard Global Advisers, LLC 124,879 $2,671,161

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 10,724,265 $229,392,025
Large Boston Partners 797,702 $17,062,844
Mid Pacer Advisors, Inc. 494,381 $10,574,809
Large Brandywine Global Investment Management, LLC 344,023 $7,358,651
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 192,527 $4,118,152
Filter: New 39 Increased 105 Reduced 99 Sold out 45 Unchanged 51
Showing 100 of 294
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $290,355,831 16.45% 13,574,373
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $131,636,755 7.46% 6,154,126
Mega AMERICAN CENTURY COMPANIES INC $83,963,578 4.76% 3,925,366
Mega DIMENSIONAL FUND ADVISORS LP $82,499,409 4.67% 3,856,915
Mega VICTORY CAPITAL MANAGEMENT INC $82,178,946 4.65% 3,841,933
Mega VANGUARD CAPITAL MANAGEMENT LLC $78,208,706 4.43% 3,656,321
Mega STATE STREET CORP $72,266,115 4.09% 3,378,500
Mega FMR LLC $48,500,411 2.75% 2,267,434
Mega GEODE CAPITAL MANAGEMENT, LLC $46,800,613 2.65% 2,187,967
Large WASATCH ADVISORS LP $43,860,708 2.48% 2,050,524
Mega D. E. Shaw & Co., Inc. $36,543,381 2.07% 1,708,433
Large RENAISSANCE TECHNOLOGIES LLC $32,775,897 1.86% 1,532,300
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $30,874,133 1.75% 1,443,391
Mega MORGAN STANLEY $26,750,865 1.52% 1,250,625
Large FULLER & THALER ASSET MANAGEMENT, INC. $26,297,529 1.49% 1,229,431
Large Allspring Global Investments Holdings, LLC $20,858,094 1.18% 975,133
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $20,761,347 1.18% 970,610
Mega Nuveen, LLC $20,386,786 1.15% 953,099
Mega Invesco Ltd. $19,725,363 1.12% 922,177
Mega NORTHERN TRUST CORP Bank $19,256,772 1.09% 900,270
Mega GOLDMAN SACHS GROUP INC $18,212,814 1.03% 851,464
Mega ALLIANCEBERNSTEIN L.P. $16,485,593 0.93% 770,715
Large Rockefeller Capital Management L.P. $16,309,808 0.92% 762,497
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $16,080,488 0.91% 751,776
Mid Dana Investment Advisors, Inc. $15,555,791 0.88% 727,246
Mid OBERWEIS ASSET MANAGEMENT INC/ $14,996,250 0.85% 701,087
Mid ROYCE & ASSOCIATES LP $14,518,890 0.82% 678,770
Mega AMERIPRISE FINANCIAL INC $14,269,459 0.81% 667,109
Mid CastleKnight Management LP $13,733,150 0.78% 642,036
Large Empowered Funds, LLC $12,737,957 0.72% 595,510
Large LSV ASSET MANAGEMENT $12,342,030 0.70% 577,000
Mega Bank of New York Mellon Corp Bank $12,168,747 0.69% 568,899
Mega AQR CAPITAL MANAGEMENT LLC $11,990,567 0.68% 560,569
Mega VANGUARD FIDUCIARY TRUST CO Bank $11,670,384 0.66% 545,600
Large PANAGORA ASSET MANAGEMENT INC $11,639,839 0.66% 544,172
Mega PRINCIPAL FINANCIAL GROUP INC $10,202,109 0.58% 476,957
Large BRANDES INVESTMENT PARTNERS, LP $9,966,477 0.56% 465,941
Mid Hillsdale Investment Management Inc. $9,910,842 0.56% 463,340
Mega RAYMOND JAMES FINANCIAL INC $9,727,015 0.55% 454,746
Large Allianz Asset Management GmbH $9,592,003 0.54% 448,434
Large Public Sector Pension Investment Board Pension $9,013,938 0.51% 421,409
Mega FRANKLIN RESOURCES INC $8,893,745 0.50% 415,790
Mega ENVESTNET ASSET MANAGEMENT INC $8,324,667 0.47% 389,185
Mid Aristotle Capital Boston, LLC $8,294,271 0.47% 387,764
Mega BANK OF AMERICA CORP /DE/ Bank $8,125,482 0.46% 379,873
Mid CSM Advisors, LLC $7,749,190 0.44% 362,281
Mega UBS Group AG $6,341,748 0.36% 296,482
Large PRUDENTIAL FINANCIAL INC $6,164,319 0.35% 288,187
Mid ArrowMark Colorado Holdings LLC $6,131,849 0.35% 286,669
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $6,124,021 0.35% 286,303
Large TEACHER RETIREMENT SYSTEM OF TEXAS Pension $5,974,612 0.34% 279,318
Small Phocas Financial Corp. $5,599,474 0.32% 261,780
Large LORD, ABBETT & CO. LLC $5,197,171 0.29% 242,972
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $5,164,141 0.29% 241,428
Mega JPMORGAN CHASE & CO $4,982,905 0.28% 232,955
Mega NORDEA INVESTMENT MANAGEMENT AB $4,911,549 0.28% 229,619
Mega JANE STREET GROUP, LLC $4,677,028 0.26% 218,655
Large Russell Investments Group, Ltd. $4,547,276 0.26% 212,589
Mega Legal & General Group Plc $4,178,599 0.24% 195,353
Mega RHUMBLINE ADVISERS $4,113,147 0.23% 192,293
Large Tidal Investments LLC $3,723,763 0.21% 174,089
Mega Swiss National Bank Bank $3,634,161 0.21% 169,900
Large LAZARD ASSET MANAGEMENT LLC $3,614,460 0.20% 168,979
Mid MARTINGALE ASSET MANAGEMENT L P $3,413,416 0.19% 159,580
Large SEI INVESTMENTS CO $3,366,934 0.19% 157,407
Mega BNP PARIBAS ARBITRAGE, SA $3,363,320 0.19% 157,238
Mega FIRST TRUST ADVISORS LP $3,270,017 0.19% 152,876
Small Bridge City Capital, LLC $3,184,286 0.18% 148,868
Large Qube Research & Technologies Ltd $3,155,602 0.18% 147,527
Large BESSEMER GROUP INC $3,148,092 0.18% 147,176
Mid RITHOLTZ WEALTH MANAGEMENT $3,073,058 0.17% 143,668
Mid SEGALL BRYANT & HAMILL, LLC $2,934,087 0.17% 137,171
Mid WEDGE CAPITAL MANAGEMENT L L P/NC $2,799,095 0.16% 130,860
Small CLARK ESTATES INC/NY $2,759,310 0.16% 129,000
Mid Engineers Gate Manager LP $2,725,171 0.15% 127,404
Mega Vanguard Global Advisers, LLC $2,671,161 0.15% 124,879
Large Gotham Asset Management, LLC $2,639,376 0.15% 123,393
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $2,580,468 0.15% 120,639
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $2,559,697 0.14% 119,668
Mid RBF Capital, LLC $2,459,850 0.14% 115,000
Mega DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main Bank $2,318,269 0.13% 108,381
Large GREAT LAKES ADVISORS, LLC $2,257,907 0.13% 105,559
Small Jackson Creek Investment Advisors LLC $2,244,516 0.13% 104,933
Large ZACKS INVESTMENT MANAGEMENT $2,130,678 0.12% 99,611
Mega PRICE T ROWE ASSOCIATES INC /MD/ $2,114,893 0.12% 98,873
Large NOMURA HOLDINGS INC $2,037,397 0.12% 95,250
Mid INTECH INVESTMENT MANAGEMENT LLC $1,995,965 0.11% 93,313
Mega HSBC HOLDINGS PLC $1,899,901 0.11% 88,822
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $1,752,439 0.10% 81,928
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM Pension $1,632,827 0.09% 76,336
Mega DEUTSCHE BANK AG\ Bank $1,595,929 0.09% 74,611
Mega CITADEL ADVISORS LLC $1,561,469 0.09% 73,000
Large HRT FINANCIAL LP $1,535,245 0.09% 71,774
Mid EXCHANGE TRADED CONCEPTS, LLC $1,515,160 0.09% 70,835
Mega LPL Financial LLC $1,465,878 0.08% 68,531
Large CANADA LIFE ASSURANCE Co Insurance $1,457,749 0.08% 68,151
Small HUSSMAN STRATEGIC ADVISORS, INC. $1,347,570 0.08% 63,000
Large FIFTH THIRD BANCORP Bank $1,333,302 0.08% 62,333
Large SG Americas Securities, LLC Broker-Dealer $1,303,421 0.07% 60,936
Mega JENNISON ASSOCIATES LLC $1,301,495 0.07% 60,846

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