MEDNAX INC

Ticker: MD CUSIP: 58502B106 Class: EQTY

VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.'s Holding History (CIK: 0001021642)

Note: Option positions (PUT/CALL) are excluded.

Q1 2017

Shares 938,140 Value ($000) $65,089 Avg Close $69.46 Range $64.05 - $72.13

Q4 2016

Shares 959,380 Value ($000) $63,953 Avg Close $65.05 Range $59.36 - $69.68

Q3 2016

Shares 1,056,150 Value ($000) $69,969 Avg Close $68.40 Range $62.63 - $76.96

Q2 2016

Shares 1,109,150 Value ($000) $80,335 Avg Close $68.74 Range $61.87 - $73.68

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	938,140	$65,089	$69.46	$64.05 - $72.13
Q4 2016	959,380	$63,953	$65.05	$59.36 - $69.68
Q3 2016	1,056,150	$69,969	$68.40	$62.63 - $76.96
Q2 2016	1,109,150	$80,335	$68.74	$61.87 - $73.68