MASTEC INC

Ticker: MTZ CUSIP: 576323109 Class: COM

ELCO Management Co., LLC's Holding History (CIK: 0001690717)

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

Q3 2019

Shares 22,705 Value ($000) $1,474 Avg Close $58.36 Range $49.23 - $66.61

Q2 2019

Shares 23,745 Value ($000) $1,224 Avg Close $49.40 Range $45.52 - $53.80

Q1 2019

Shares 23,745 Value ($000) $1,142 Avg Close $44.93 Range $39.30 - $48.77

Q4 2018

Shares 24,460 Value ($000) $992 Avg Close $43.06 Range $37.24 - $51.77

Q3 2018

Shares 24,500 Value ($000) $1,094 Avg Close $46.29 Range $40.20 - $53.45

Q2 2018

Shares 24,500 Value ($000) $1,243 Avg Close $48.31 Range $43.90 - $54.70

Q1 2018

Shares 24,500 Value ($000) $1,153 Avg Close $50.70 Range $44.70 - $55.53

Q4 2017

Shares 24,500 Value ($000) $1,199 Avg Close $44.61 Range $39.83 - $51.20

Q3 2017

Shares 24,500 Value ($000) $1,137 Avg Close $43.56 Range $38.40 - $49.50

Q2 2017

Shares 25,730 Value ($000) $1,162 Avg Close $43.26 Range $38.33 - $47.90

Q1 2017

Shares 26,030 Value ($000) $1,043 Avg Close $38.26 Range $34.33 - $41.90

Q4 2016

Shares 26,030 Value ($000) $996 Avg Close $33.93 Range $27.10 - $40.90

Q3 2016

Shares 31,180 Value ($000) $1,099 Avg Close $27.42 Range $22.03 - $31.15

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	22,705	$1,474	$58.36	$49.23 - $66.61
Q2 2019	23,745	$1,224	$49.40	$45.52 - $53.80
Q1 2019	23,745	$1,142	$44.93	$39.30 - $48.77
Q4 2018	24,460	$992	$43.06	$37.24 - $51.77
Q3 2018	24,500	$1,094	$46.29	$40.20 - $53.45
Q2 2018	24,500	$1,243	$48.31	$43.90 - $54.70
Q1 2018	24,500	$1,153	$50.70	$44.70 - $55.53
Q4 2017	24,500	$1,199	$44.61	$39.83 - $51.20
Q3 2017	24,500	$1,137	$43.56	$38.40 - $49.50
Q2 2017	25,730	$1,162	$43.26	$38.33 - $47.90
Q1 2017	26,030	$1,043	$38.26	$34.33 - $41.90
Q4 2016	26,030	$996	$33.93	$27.10 - $40.90
Q3 2016	31,180	$1,099	$27.42	$22.03 - $31.15