MASTEC INC

Ticker: MTZ CUSIP: 576323109 Class: COM

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q4 2025

Shares 40,900 Value ($000) $8,890 Avg Close $209.86 Range $182.34 - $233.14

Q3 2025

Shares 5,819 Value ($000) $1,238 Avg Close $183.12 Range $160.08 - $213.66

Q2 2025

Shares 12,117 Value ($000) $2,065 Avg Close $144.03 Range $99.70 - $172.71

Q4 2024

Shares 118,607 Value ($000) $16,147 Avg Close $134.07 Range $118.86 - $150.12

Q3 2024

Shares 610,544 Value ($000) $75,158 Avg Close $109.17 Range $89.96 - $127.97

Q4 2023

Shares 1,193,631 Value ($000) $90,382 Avg Close $62.54 Range $44.65 - $76.56

Q3 2023

Shares 539,588 Value ($000) $38,834 Avg Close $99.67 Range $71.61 - $123.33

Q2 2023

Shares 171,110 Value ($000) $20,186 Avg Close $97.94 Range $84.80 - $118.32

Q1 2023

Shares 337,596 Value ($000) $31,883 Avg Close $95.07 Range $84.89 - $103.50

Q4 2022

Shares 3,928 Value ($000) $335 Avg Close $82.03 Range $62.36 - $96.54

Q3 2022

Shares 434,846 Value ($000) $27,613 Avg Close $77.37 Range $62.64 - $86.57

Q2 2022

Shares 366,073 Value ($000) $26,233 Avg Close $77.96 Range $67.31 - $92.03

Q1 2022

Shares 2,659 Value ($000) $232 Avg Close $87.37 Range $71.85 - $99.00

Q1 2021

Shares 28,468 Value ($000) $2,667 Avg Close $85.57 Range $67.05 - $99.38

Q1 2020

Shares 383,529 Value ($000) $12,553 Avg Close $50.87 Range $22.51 - $65.00

Q4 2019

Shares 512,615 Value ($000) $32,889 Avg Close $65.85 Range $59.85 - $73.71

Q3 2019

Shares 364,768 Value ($000) $23,684 Avg Close $58.36 Range $49.23 - $66.61

Q2 2019

Shares 677,089 Value ($000) $34,890 Avg Close $49.40 Range $45.52 - $53.80

Q1 2019

Shares 945,978 Value ($000) $45,502 Avg Close $44.93 Range $39.30 - $48.77

Q4 2018

Shares 813,892 Value ($000) $33,011 Avg Close $43.06 Range $37.24 - $51.77

Q3 2018

Shares 1,253,131 Value ($000) $55,952 Avg Close $46.29 Range $40.20 - $53.45

Q2 2018

Shares 833,498 Value ($000) $42,300 Avg Close $48.31 Range $43.90 - $54.70

Q1 2018

Shares 724,943 Value ($000) $34,109 Avg Close $50.70 Range $44.70 - $55.53

Q4 2017

Shares 622,516 Value ($000) $30,472 Avg Close $44.61 Range $39.83 - $51.20

Q1 2015

Shares 26,266 Value ($000) $507 Avg Close $19.99 Range $16.00 - $22.79

Q4 2014

Shares 19,867 Value ($000) $449 Avg Close $24.73 Range $18.14 - $30.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	40,900	$8,890	$209.86	$182.34 - $233.14
Q3 2025	5,819	$1,238	$183.12	$160.08 - $213.66
Q2 2025	12,117	$2,065	$144.03	$99.70 - $172.71
Q4 2024	118,607	$16,147	$134.07	$118.86 - $150.12
Q3 2024	610,544	$75,158	$109.17	$89.96 - $127.97
Q4 2023	1,193,631	$90,382	$62.54	$44.65 - $76.56
Q3 2023	539,588	$38,834	$99.67	$71.61 - $123.33
Q2 2023	171,110	$20,186	$97.94	$84.80 - $118.32
Q1 2023	337,596	$31,883	$95.07	$84.89 - $103.50
Q4 2022	3,928	$335	$82.03	$62.36 - $96.54
Q3 2022	434,846	$27,613	$77.37	$62.64 - $86.57
Q2 2022	366,073	$26,233	$77.96	$67.31 - $92.03
Q1 2022	2,659	$232	$87.37	$71.85 - $99.00
Q1 2021	28,468	$2,667	$85.57	$67.05 - $99.38
Q1 2020	383,529	$12,553	$50.87	$22.51 - $65.00
Q4 2019	512,615	$32,889	$65.85	$59.85 - $73.71
Q3 2019	364,768	$23,684	$58.36	$49.23 - $66.61
Q2 2019	677,089	$34,890	$49.40	$45.52 - $53.80
Q1 2019	945,978	$45,502	$44.93	$39.30 - $48.77
Q4 2018	813,892	$33,011	$43.06	$37.24 - $51.77
Q3 2018	1,253,131	$55,952	$46.29	$40.20 - $53.45
Q2 2018	833,498	$42,300	$48.31	$43.90 - $54.70
Q1 2018	724,943	$34,109	$50.70	$44.70 - $55.53
Q4 2017	622,516	$30,472	$44.61	$39.83 - $51.20
Q1 2015	26,266	$507	$19.99	$16.00 - $22.79
Q4 2014	19,867	$449	$24.73	$18.14 - $30.70