MASTEC INC

Ticker: MTZ CUSIP: 576323109 Class: COM

Calamos Advisors LLC's Holding History (CIK: 0001316507)

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

Q4 2025

Shares 9,641 Value ($000) $2,096 Avg Close $209.86 Range $182.34 - $233.14

Q3 2025

Shares 9,641 Value ($000) $2,052 Avg Close $183.12 Range $160.08 - $213.66

Q4 2019

Shares 103,938 Value ($000) $6,669 Avg Close $65.85 Range $59.85 - $73.71

Q3 2019

Shares 130,240 Value ($000) $8,456 Avg Close $58.36 Range $49.23 - $66.61

Q2 2019

Shares 101,619 Value ($000) $5,236 Avg Close $49.40 Range $45.52 - $53.80

Q3 2015

Shares 27,990 Value ($000) $443 Avg Close $17.42 Range $14.48 - $20.91

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	9,641	$2,096	$209.86	$182.34 - $233.14
Q3 2025	9,641	$2,052	$183.12	$160.08 - $213.66
Q4 2019	103,938	$6,669	$65.85	$59.85 - $73.71
Q3 2019	130,240	$8,456	$58.36	$49.23 - $66.61
Q2 2019	101,619	$5,236	$49.40	$45.52 - $53.80
Q3 2015	27,990	$443	$17.42	$14.48 - $20.91