Dark
Light
System
Security
MEDNAX INC
MEDNAX INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 402 Institutional holders with a total value of $6,822,929,105.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRICE T ROWE ASSOCIATES INC /MD/ 7,451,681 533,987,000 7.83%
2 VANGUARD GROUP INC 6,668,802 477,887,000 7.00%
3 FMR LLC 4,299,006 308,067,000 4.52%
4 CLIFTON PARK CAPITAL MANAGEMENT, LLC 4,053,000 290,439,000 4.26%
5 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 3,607,960 258,546,000 3.79%
6 BlackRock Fund Advisors 3,505,772 251,224,000 3.68%
7 STATE STREET CORP 3,053,530 218,804,000 3.21%
8 WELLINGTON MANAGEMENT GROUP LLP 2,831,632 202,915,000 2.97%
9 BlackRock Institutional Trust Company, N.A. 2,764,777 198,124,000 2.90%
10 Bank of New York Mellon Corp 2,527,410 181,115,000 2.65%
11 1832 Asset Management L.P. 2,388,873 172,793,000 2.53%
12 FRONTIER CAPITAL MANAGEMENT CO LLC 1,888,709 135,345,000 1.98%
13 EARNEST PARTNERS LLC 1,780,721 127,606,000 1.87%
14 Clearbridge Investments, LLC 1,447,349 103,717,000 1.52%
15 NORTHERN TRUST CORP 1,230,138 88,152,000 1.29%
16 AEGON ASSET MANAGEMENT UK PLC 1,128,682 80,836,204 1.18%
17 Ninety One UK Ltd 1,075,814 77,093,000 1.13%
18 GOLDMAN SACHS GROUP INC 1,050,858 75,304,000 1.10%
19 FIRST TRUST ADVISORS LP 1,048,747 75,153,000 1.10%
20 SCHRODER INVESTMENT MANAGEMENT GROUP 1,027,900 73,660,000 1.08%
21 RIVERBRIDGE PARTNERS LLC 989,939 70,939,000 1.04%
22 CS MCKEE LP 942,853 67,565,000 0.99%
23 Sterling Capital Management LLC 924,171 66,226,000 0.97%
24 WASATCH ADVISORS LP 904,384 64,808,000 0.95%
25 JANUS HENDERSON INVESTORS US LLC 864,403 61,943,000 0.91%
26 EAGLE ASSET MANAGEMENT INC 847,935 60,763,000 0.89%
27 NORGES BANK 831,192 59,563,000 0.87%
28 FENIMORE ASSET MANAGEMENT INC 785,805 56,311,000 0.83%
29 TimesSquare Capital Management, LLC 752,100 53,895,000 0.79%
30 NORDEA INVESTMENT MANAGEMENT AB 751,513 53,853,000 0.79%
31 Robeco Institutional Asset Management B.V. 721,138 51,677,000 0.76%
32 HERMES INVESTMENT MANAGEMENT LTD 717,952 51,448,000 0.75%
33 LORD, ABBETT & CO. LLC 685,878 49,150,000 0.72%
34 Allianz Asset Management GmbH 637,181 45,809,000 0.67%
35 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 594,267 42,585,000 0.62%
36 JANUS HENDERSON GROUP PLC 582,897 41,753,000 0.61%
37 WELLS FARGO & COMPANY/MN 578,618 41,464,000 0.61%
38 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 564,062 40,421,000 0.59%
39 GEODE CAPITAL MANAGEMENT, LLC 549,867 39,376,000 0.58%
40 NEW YORK STATE COMMON RETIREMENT FUND 516,094 36,983,000 0.54%
41 PALISADE CAPITAL MANAGEMENT, LP 512,557 36,730,000 0.54%
42 Mawer Investment Management Ltd. 494,146 35,411,000 0.52%
43 ACADIAN ASSET MANAGEMENT LLC 486,837 34,886,000 0.51%
44 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 485,600 34,798,000 0.51%
45 BANK OF AMERICA CORP /DE/ 483,780 34,667,000 0.51%
46 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 482,390 34,568,000 0.51%
47 DIMENSIONAL FUND ADVISORS LP 479,800 34,385,000 0.50%
48 PRINCIPAL FINANCIAL GROUP INC 467,270 33,485,000 0.49%
49 HANDELSBANKEN FONDER AB 444,389 31,845,000 0.47%
50 GUGGENHEIM CAPITAL LLC 434,910 31,166,000 0.46%
Page 1 of 9

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.