MASTEC INC

Ticker: MTZ CUSIP: 576323109 Class: COM

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q3 2025

Shares 53,702 Value ($000) $11,428 Avg Close $183.12 Range $160.08 - $213.66

Q2 2025

Shares 83,661 Value ($000) $14,258 Avg Close $144.03 Range $99.70 - $172.71

Q1 2025

Shares 113,576 Value ($000) $13,255 Avg Close $134.92 Range $106.45 - $166.95

Q4 2024

Shares 154,369 Value ($000) $21,016 Avg Close $134.07 Range $118.86 - $150.12

Q3 2024

Shares 177,975 Value ($000) $21,909 Avg Close $109.17 Range $89.96 - $127.97

Q2 2024

Shares 350,876 Value ($000) $37,540 Avg Close $101.02 Range $82.29 - $113.12

Q1 2024

Shares 418,413 Value ($000) $39,017 Avg Close $76.04 Range $60.96 - $94.82

Q4 2023

Shares 1,041,868 Value ($000) $78,890 Avg Close $62.54 Range $44.65 - $76.56

Q3 2023

Shares 728,877 Value ($000) $52,457 Avg Close $99.67 Range $71.61 - $123.33

Q2 2023

Shares 977,015 Value ($000) $115,258 Avg Close $97.94 Range $84.80 - $118.32

Q1 2023

Shares 962,385 Value ($000) $90,888 Avg Close $95.07 Range $84.89 - $103.50

Q4 2022

Shares 1,195,297 Value ($000) $101,995 Avg Close $82.03 Range $62.36 - $96.54

Q3 2022

Shares 1,595,595 Value ($000) $101,320 Avg Close $77.37 Range $62.64 - $86.57

Q2 2022

Shares 1,370,048 Value ($000) $98,178 Avg Close $77.96 Range $67.31 - $92.03

Q1 2022

Shares 1,171,009 Value ($000) $101,995 Avg Close $87.37 Range $71.85 - $99.00

Q4 2021

Shares 1,226,194 Value ($000) $113,153 Avg Close $91.39 Range $83.90 - $104.21

Q3 2021

Shares 1,019,009 Value ($000) $87,920 Avg Close $94.87 Range $85.11 - $107.25

Q2 2021

Shares 1,120,466 Value ($000) $118,881 Avg Close $108.58 Range $93.16 - $122.33

Q1 2021

Shares 1,466,298 Value ($000) $137,392 Avg Close $85.57 Range $67.05 - $99.38

Q4 2020

Shares 1,442,817 Value ($000) $98,371 Avg Close $56.09 Range $40.18 - $71.11

Q3 2020

Shares 234,110 Value ($000) $9,879 Avg Close $42.99 Range $36.81 - $49.86

Q2 2020

Shares 288,866 Value ($000) $12,961 Avg Close $37.90 Range $28.39 - $48.32

Q1 2020

Shares 418,157 Value ($000) $13,686 Avg Close $50.87 Range $22.51 - $65.00

Q4 2019

Shares 511,370 Value ($000) $32,809 Avg Close $65.85 Range $59.85 - $73.71

Q3 2019

Shares 892,173 Value ($000) $57,929 Avg Close $58.36 Range $49.23 - $66.61

Q2 2019

Shares 940,283 Value ($000) $48,453 Avg Close $49.40 Range $45.52 - $53.80

Q1 2019

Shares 1,102,534 Value ($000) $53,032 Avg Close $44.93 Range $39.30 - $48.77

Q4 2018

Shares 1,310,948 Value ($000) $53,172 Avg Close $43.06 Range $37.24 - $51.77

Q3 2018

Shares 1,378,618 Value ($000) $61,555 Avg Close $46.29 Range $40.20 - $53.45

Q2 2018

Shares 1,443,423 Value ($000) $73,254 Avg Close $48.31 Range $43.90 - $54.70

Q1 2018

Shares 1,429,832 Value ($000) $67,274 Avg Close $50.70 Range $44.70 - $55.53

Q4 2017

Shares 1,655,149 Value ($000) $81,020 Avg Close $44.61 Range $39.83 - $51.20

Q3 2017

Shares 1,656,134 Value ($000) $76,845 Avg Close $43.56 Range $38.40 - $49.50

Q2 2017

Shares 2,324,289 Value ($000) $104,942 Avg Close $43.26 Range $38.33 - $47.90

Q1 2017

Shares 2,768,977 Value ($000) $110,898 Avg Close $38.26 Range $34.33 - $41.90

Q4 2016

Shares 2,889,184 Value ($000) $110,511 Avg Close $33.93 Range $27.10 - $40.90

Q3 2016

Shares 3,661,238 Value ($000) $108,885 Avg Close $27.42 Range $22.03 - $31.15

Q2 2016

Shares 4,484,197 Value ($000) $100,087 Avg Close $22.18 Range $19.13 - $24.67

Q1 2016

Shares 5,104,959 Value ($000) $103,324 Avg Close $16.37 Range $12.44 - $20.85

Q4 2015

Shares 4,307,736 Value ($000) $74,868 Avg Close $17.77 Range $15.42 - $21.10

Q3 2015

Shares 3,908,644 Value ($000) $61,874 Avg Close $17.42 Range $14.48 - $20.91

Q2 2015

Shares 2,773,677 Value ($000) $55,113 Avg Close $18.69 Range $15.34 - $21.52

Q1 2015

Shares 2,796,788 Value ($000) $53,978 Avg Close $19.99 Range $16.00 - $22.79

Q4 2014

Shares 4,489,711 Value ($000) $101,512 Avg Close $24.73 Range $18.14 - $30.70

Q3 2014

Shares 4,174,798 Value ($000) $127,832 Avg Close $29.73 Range $26.38 - $32.10

Q2 2014

Shares 3,524,308 Value ($000) $108,619 Avg Close $37.68 Range $27.96 - $44.80

Q1 2014

Shares 5,333,099 Value ($000) $231,670 Avg Close $37.96 Range $32.27 - $44.03

Q4 2013

Shares 5,281,686 Value ($000) $172,817 Avg Close $31.66 Range $29.76 - $34.17

Q3 2013

Shares 5,351,832 Value ($000) $162,161 Avg Close $32.84 Range $28.88 - $35.31

Q2 2013

Shares 5,086,295 Value ($000) $167,339 Avg Close $30.13 Range $26.27 - $33.97

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	53,702	$11,428	$183.12	$160.08 - $213.66
Q2 2025	83,661	$14,258	$144.03	$99.70 - $172.71
Q1 2025	113,576	$13,255	$134.92	$106.45 - $166.95
Q4 2024	154,369	$21,016	$134.07	$118.86 - $150.12
Q3 2024	177,975	$21,909	$109.17	$89.96 - $127.97
Q2 2024	350,876	$37,540	$101.02	$82.29 - $113.12
Q1 2024	418,413	$39,017	$76.04	$60.96 - $94.82
Q4 2023	1,041,868	$78,890	$62.54	$44.65 - $76.56
Q3 2023	728,877	$52,457	$99.67	$71.61 - $123.33
Q2 2023	977,015	$115,258	$97.94	$84.80 - $118.32
Q1 2023	962,385	$90,888	$95.07	$84.89 - $103.50
Q4 2022	1,195,297	$101,995	$82.03	$62.36 - $96.54
Q3 2022	1,595,595	$101,320	$77.37	$62.64 - $86.57
Q2 2022	1,370,048	$98,178	$77.96	$67.31 - $92.03
Q1 2022	1,171,009	$101,995	$87.37	$71.85 - $99.00
Q4 2021	1,226,194	$113,153	$91.39	$83.90 - $104.21
Q3 2021	1,019,009	$87,920	$94.87	$85.11 - $107.25
Q2 2021	1,120,466	$118,881	$108.58	$93.16 - $122.33
Q1 2021	1,466,298	$137,392	$85.57	$67.05 - $99.38
Q4 2020	1,442,817	$98,371	$56.09	$40.18 - $71.11
Q3 2020	234,110	$9,879	$42.99	$36.81 - $49.86
Q2 2020	288,866	$12,961	$37.90	$28.39 - $48.32
Q1 2020	418,157	$13,686	$50.87	$22.51 - $65.00
Q4 2019	511,370	$32,809	$65.85	$59.85 - $73.71
Q3 2019	892,173	$57,929	$58.36	$49.23 - $66.61
Q2 2019	940,283	$48,453	$49.40	$45.52 - $53.80
Q1 2019	1,102,534	$53,032	$44.93	$39.30 - $48.77
Q4 2018	1,310,948	$53,172	$43.06	$37.24 - $51.77
Q3 2018	1,378,618	$61,555	$46.29	$40.20 - $53.45
Q2 2018	1,443,423	$73,254	$48.31	$43.90 - $54.70
Q1 2018	1,429,832	$67,274	$50.70	$44.70 - $55.53
Q4 2017	1,655,149	$81,020	$44.61	$39.83 - $51.20
Q3 2017	1,656,134	$76,845	$43.56	$38.40 - $49.50
Q2 2017	2,324,289	$104,942	$43.26	$38.33 - $47.90
Q1 2017	2,768,977	$110,898	$38.26	$34.33 - $41.90
Q4 2016	2,889,184	$110,511	$33.93	$27.10 - $40.90
Q3 2016	3,661,238	$108,885	$27.42	$22.03 - $31.15
Q2 2016	4,484,197	$100,087	$22.18	$19.13 - $24.67
Q1 2016	5,104,959	$103,324	$16.37	$12.44 - $20.85
Q4 2015	4,307,736	$74,868	$17.77	$15.42 - $21.10
Q3 2015	3,908,644	$61,874	$17.42	$14.48 - $20.91
Q2 2015	2,773,677	$55,113	$18.69	$15.34 - $21.52
Q1 2015	2,796,788	$53,978	$19.99	$16.00 - $22.79
Q4 2014	4,489,711	$101,512	$24.73	$18.14 - $30.70
Q3 2014	4,174,798	$127,832	$29.73	$26.38 - $32.10
Q2 2014	3,524,308	$108,619	$37.68	$27.96 - $44.80
Q1 2014	5,333,099	$231,670	$37.96	$32.27 - $44.03
Q4 2013	5,281,686	$172,817	$31.66	$29.76 - $34.17
Q3 2013	5,351,832	$162,161	$32.84	$28.88 - $35.31
Q2 2013	5,086,295	$167,339	$30.13	$26.27 - $33.97