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MD · Pediatrix Medical Group, Inc. · Shareholders & Ownership

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Market Cap
$2.44B
Shares
78.12M
Volume · Nov 9 34.22K Avg daily vol (3M) 753.2K

Every disclosed holder of MD in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns MD

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 84,410,621 108.05%
Insiders (Forms 3, 4, 5) 1,261,284 1.61%
13D/G-only blocks 7,025,042 8.99%
Remaining 14,572,231 -18.65%
Registered funds (N-PORT, not summed) 46,615,726 59.67%

Shares outstanding: 78,124,716, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of MD

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
13,714,275
1.1
iShares Core S&P Small-Cap ETF
Fund S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
4,832,166
1.2
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
2,177,631
1.3
iShares Russell 2000 Value ETF
Fund S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
776,149
1.4
iShares S&P Small-Cap 600 Growth ETF
Fund S000004314 · Registered fund · Jun 30, 2026
iShares Trust, not summed
720,488
1.5
BlackRock Advantage Small Cap Core Fund
Fund S000039982 · Registered fund · Aug 31, 2026
BlackRock Funds, not summed
300,188
2
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
5,985,147
3
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Sep 30, 2026
4,405,903
3.1
U.S. SMALL CAP VALUE PORTFOLIO
Fund S000000987 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
686,570
3.2
U.S. Targeted Value Portfolio
Fund S000000970 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
525,595
3.3
Dimensional U.S. Targeted Value ETF
Fund S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
512,663
3.4
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
369,648
3.5
Dimensional US Small Cap Value ETF
Fund S000075151 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
319,561
4
EARNEST PARTNERS LLC
13G CIK 1102578 · Registered investment adviser · May 31, 2024
Rule 13d-1(b), qualified institution, unconfirmed, last confirmed May 31, 2024
3,876,602
5
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,620,040
6
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
3,533,248
6.1
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
737,259
6.2
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF
Fund S000006990 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
452,289
6.3
State Street(R) SPDR(R) S&P(R) Health Care Services ETF
Fund S000012331 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
95,947
6.4
State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF
Fund S000063362 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
60,279
6.5
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
30,274
7
VICTORY CAPITAL MANAGEMENT INC
13F CIK 1040188 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,416,913
7.1
Victory Sycamore Small Company Opportunity Fund
Fund S000000800 · Registered fund · Jun 30, 2026
Victory Portfolios, not summed
2,270,000
7.2
VictoryShares US Small Mid Cap Value Momentum ETF
Fund S000065161 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
217,530
7.3
VictoryShares Small Cap Free Cash Flow ETF
Fund S000080690 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
121,766
7.4
Victory Small Cap Stock Fund
Fund S000012914 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
68,887
7.5
Victory Cornerstone Moderately Aggressive Fund
Fund S000012926 · Registered fund · Aug 31, 2026
Victory Portfolios III, not summed
10,163
8
Rubric Capital Management LP
13G CIK 1687509 · Registered investment adviser · Dec 31, 2024
Rule 13d-1(b), qualified institution
3,148,440
9
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
2,616,995
10
WASATCH ADVISORS LP
13F CIK 814133 · Registered investment adviser · Sep 30, 2026
2,219,261
10.1
Wasatch Small Cap Value Fund
Fund S000000878 · Registered fund · Sep 30, 2026
WASATCH FUNDS TRUST, not summed
849,088
10.2
Wasatch Long/Short Alpha Fund
Fund S000073482 · Registered fund · Sep 30, 2026
WASATCH FUNDS TRUST, not summed
13,741
11
AMERICAN CENTURY COMPANIES INC
13F CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,192,017
11.1
Small Cap Value Fund
Fund S000005781 · Registered fund · Jun 30, 2026
American Century Capital Portfolios, Inc., not summed
1,110,000
11.2
Small Company Fund
Fund S000005981 · Registered fund · Jun 30, 2026
American Century Quantitative Equity Funds, Inc., not summed
15,818
12
Allspring Global Investments Holdings, LLC
13F CIK 1890906 · Holding company · Sep 30, 2026
2,070,961
12.1
Allspring SMID Core ETF
Fund S000093515 · Registered fund · Jun 30, 2026
ALLSPRING EXCHANGE-TRADED FUNDS TRUST, not summed
79,434
12.2
Allspring Small Company Value Portfolio
Fund S000007553 · Registered fund · Jul 31, 2026
ALLSPRING MASTER TRUST, not summed
74,586
12.3
Allspring Special Global Small Cap Fund
Fund S000029113 · Registered fund · Jul 31, 2026
ALLSPRING FUNDS TRUST, not summed
31,515
12.4
Allspring Disciplined Small Cap Fund
Fund S000007342 · Registered fund · Jun 30, 2026
ALLSPRING FUNDS TRUST, not summed
22,422
13
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Sep 30, 2026
2,061,783
14
VANGUARD SMALL-CAP INDEX FUND
Fund S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,881,693
15
LSV ASSET MANAGEMENT
13F CIK 1050470 · Registered investment adviser · Sep 30, 2026
1,729,154
15.1
LSV Small Cap Value Fund
Fund S000039922 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE FUND, not summed
101,500
16
FULLER & THALER ASSET MANAGEMENT, INC.
13F CIK 1082327 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,721,451
17
FULLERTHALER BEHAVIORAL SMALL CAP EQUITY
Fund S000051163 · Registered fund · Jun 30, 2026
Capitol Series Trust, not summed
1,648,328
18
D. E. Shaw & Co., Inc.
13F CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,613,100
19
Rockefeller Capital Management L.P.
13F CIK 1739439 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,338,592
19.1
Rockefeller US Small Cap Core Fund
Fund S000080973 · Registered fund · Aug 31, 2026
Trust for Professional Managers, not summed
100,849
20
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,328,477
20.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
26
21
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,294,185
21.1
Schwab Fundamental U.S. Small Company ETF
Fund S000040878 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
391,343
21.2
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
382,144
21.3
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
202,326
21.4
Schwab Fundamental U.S. Small Company Index Fund
Fund S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
102,158
21.5
Schwab U.S. Broad Market ETF
Fund S000026631 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
52,351
22
RENAISSANCE TECHNOLOGIES LLC
13F CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,287,300
23
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,193,047
24
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,173,609
24.1
Invesco S&P SmallCap Momentum ETF
Fund S000003024 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
585,842
24.2
Invesco S&P SmallCap Value with Momentum ETF
Fund S000003025 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
197,070
24.3
Invesco S&P SmallCap 600 Revenue ETF
Fund S000064596 · Registered fund · Aug 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
106,582
24.4
Invesco RAFI US 1500 Small-Mid ETF
Fund S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
96,912
24.5
Invesco S&P SmallCap Health Care ETF
Fund S000028299 · Registered fund · Aug 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
75,168
25
Public Sector Pension Investment Board
13F CIK 1396318 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
987,860
26
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
934,307
26.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
42,142
26.2
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
19,118
27
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
919,257
28
ROYCE & ASSOCIATES LP
13F CIK 906304 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
914,348
28.1
Royce Small-Cap Total Return Fund
Fund S000009510 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
371,353
28.2
Royce Small-Cap Fund
Fund S000009507 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
227,529
28.3
Royce Capital Fund - Small-Cap Portfolio
Fund S000009497 · Registered fund · Jun 30, 2026
ROYCE CAPITAL FUND, not summed
101,590
28.4
Royce Small-Cap Value Fund
Fund S000009516 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
60,969
29
SILVERCREST ASSET MANAGEMENT GROUP LLC
13F CIK 1232395 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
912,380
30
Nuveen, LLC
13F CIK 1871926 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
868,272
30.1
College Retirement Equities Fund - Total Global Stock Account
Fund S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
299,153
30.2
Nuveen Small Cap Value Opportunities Fund
Fund S000000606 · Registered fund · Jun 30, 2026
Nuveen Investment Trust, not summed
232,532
30.3
Nuveen Small Cap Blend Index Fund
Fund S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
110,527
30.4
Nuveen Equity Index Fund
Fund S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
62,605
30.5
TIAA Separate Account VA-1 - Stock Index Account
Fund S000005098 · Registered fund · Jun 30, 2026
TIAA Separate Account VA-1, not summed
1,877
31
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
825,636
31.1
Goldman Sachs Small Cap Value Fund
Fund S000009323 · Registered fund · Aug 31, 2026
Goldman Sachs Trust, not summed
118,711
31.2
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · Aug 31, 2026
Goldman Sachs ETF Trust, not summed
43,427
31.3
Multi-Manager U.S. Small Cap Equity Fund
Fund S000051363 · Registered fund · Apr 30, 2026
Goldman Sachs Trust II, not summed
26,900
31.4
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
6,333
32
BRIDGEWAY CAPITAL MANAGEMENT, LLC
13F CIK 1107261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
761,642
32.1
Omni Small-Cap Value Fund
Fund S000033567 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
265,000
32.2
Small-Cap Value Fund
Fund S000004427 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
75,000
33
ALLIANCEBERNSTEIN L.P.
13F CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
761,010
33.1
AB Small Cap Value Portfolio
Fund S000045542 · Registered fund · Jun 30, 2026
AB CAP FUND, INC., not summed
149,393
34
VANGUARD STRATEGIC EQUITY FUND
Fund S000002593 · Registered fund · Jun 30, 2026
VANGUARD HORIZON FUNDS, not summed
749,810
35
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
741,386
35.1
Fidelity Small Cap Index Fund
Fund S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
910,853
35.2
Select Health Care Services Portfolio
Fund S000007472 · Registered fund · Aug 31, 2026
Fidelity Select Portfolios, not summed
670,100
35.3
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
391,769
35.4
Fidelity Total Market Index Fund
Fund S000006026 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
152,722
35.5
Fidelity Series Total Market Index Fund
Fund S000065248 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
124,165
36
AMERIPRISE FINANCIAL INC
13F CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
663,400
36.1
Columbia Small Cap Value and Inflection Fund
Fund S000010793 · Registered fund · Aug 31, 2026
COLUMBIA FUNDS SERIES TRUST, not summed
300,646
36.2
Columbia Small Cap Index Fund
Fund S000010827 · Registered fund · Aug 31, 2026
COLUMBIA FUNDS SERIES TRUST, not summed
114,971
36.3
Columbia Research Enhanced Small Cap ETF
Fund S000095313 · Registered fund · Jun 30, 2026
Columbia ETF Trust I, not summed
138
37
Bridge Builder Small/Mid Cap Value Fund
Fund S000048337 · Registered fund · Jun 30, 2026
Bridge Builder Trust, not summed
646,307
38
Dana Investment Advisors, Inc.
13F CIK 1427514 · Registered investment adviser · Sep 30, 2026
634,260
39
OBERWEIS ASSET MANAGEMENT INC/
13F CIK 937886 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
623,087
39.1
Oberweis Micro-Cap Fund
Fund S000010231 · Registered fund · Jun 30, 2026
OBERWEIS FUNDS, not summed
601,700
40
PANAGORA ASSET MANAGEMENT INC
13F CIK 883677 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
619,935
41
Tidal Investments LLC
13F CIK 1600064 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
616,048
41.1
Rockefeller U.S. Small-Mid Cap ETF
Fund S000086716 · Registered fund · Jul 31, 2026
Tidal Trust III, not summed
482,362
41.2
Even Herd Long Short ETF
Fund S000084434 · Registered fund · Jun 30, 2026
Tidal Trust II, not summed
14,999
41.3
Intech S&P Small-Mid Cap Diversified Alpha ETF
Fund S000090661 · Registered fund · Jul 31, 2026
Tidal Trust III, not summed
7,591
41.4
Adasina Social Justice All Cap Global ETF
Fund S000069950 · Registered fund · Aug 31, 2026
Tidal Trust I, not summed
3,570
42
RAYMOND JAMES FINANCIAL INC
13F CIK 720005 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
563,461
43
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Sep 30, 2026
547,506
44
VANGUARD TAX-MANAGED SMALL-CAP FUND
Fund S000004387 · Registered fund · Jun 30, 2026
VANGUARD TAX-MANAGED FUNDS, not summed
542,433
45
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
533,800
46
PRINCIPAL FINANCIAL GROUP INC
13F CIK 1126328 · Insurance company · Sep 30, 2026
504,348
46.1
Principal U.S. Small-Cap ETF
Fund S000055159 · Registered fund · Jun 30, 2026
Principal Exchange-Traded Funds, not summed
72,885
46.2
SmallCap S&P 600 Index Fund
Fund S000007203 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
59,081
46.3
SmallCap Value Fund II
Fund S000007169 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
5,529
47
Empowered Funds, LLC
13F CIK 1592828 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
500,118
47.1
EA Bridgeway Omni Small-Cap Value ETF
Fund S000078089 · Registered fund · Jun 30, 2026
EA Series Trust, not summed
421,642
47.2
Euclidean Fundamental Value ETF
Fund S000079847 · Registered fund · Jun 30, 2026
EA Series Trust, not summed
75,004
48
Allianz Asset Management GmbH
13F CIK 1535323 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
495,616
48.1
PIMCO RAE US Small Fund
Fund S000048957 · Registered fund · Jun 30, 2026
PIMCO Equity Series, not summed
317,511
49
VANGUARD RUSSELL 2000 INDEX FUND
Fund S000030003 · Registered fund · Aug 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
477,344
50
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
471,289
50.1
AQR Small Cap Multi-Style Fund
Fund S000040064 · Registered fund · Jun 30, 2026
AQR Funds, not summed
53,328
50.2
AQR Small Cap Momentum Style Fund
Fund S000025644 · Registered fund · Mar 31, 2026
AQR Funds, not summed
9,568

59 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

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Key facts CIK 893949 CUSIP 58502B106 13F (30d) 149 filings 128 filers Visit website Investor relations