MASTEC INC

Ticker: MTZ CUSIP: 576323109 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 102,403 Value ($000) $22,259 Avg Close $209.86 Range $182.34 - $233.14

Q2 2025

Shares 79,456 Value ($000) $13,542 Avg Close $144.03 Range $99.70 - $172.71

Q1 2025

Shares 268,054 Value ($000) $31,285 Avg Close $134.92 Range $106.45 - $166.95

Q4 2024

Shares 39,485 Value ($000) $5,375 Avg Close $134.07 Range $118.86 - $150.12

Q3 2024

Shares 500,491 Value ($000) $61,610 Avg Close $109.17 Range $89.96 - $127.97

Q2 2024

Shares 718,086 Value ($000) $76,828 Avg Close $101.02 Range $82.29 - $113.12

Q1 2024

Shares 688,455 Value ($000) $64,198 Avg Close $76.04 Range $60.96 - $94.82

Q4 2023

Shares 785,735 Value ($000) $59,496 Avg Close $62.54 Range $44.65 - $76.56

Q3 2023

Shares 789,897 Value ($000) $56,849 Avg Close $99.67 Range $71.61 - $123.33

Q2 2023

Shares 463,181 Value ($000) $54,641 Avg Close $97.94 Range $84.80 - $118.32

Q1 2023

Shares 519,799 Value ($000) $49,090 Avg Close $95.07 Range $84.89 - $103.50

Q4 2022

Shares 538,066 Value ($000) $45,913 Avg Close $82.03 Range $62.36 - $96.54

Q3 2022

Shares 691,959 Value ($000) $43,940 Avg Close $77.37 Range $62.64 - $86.57

Q2 2022

Shares 861,978 Value ($000) $61,770 Avg Close $77.96 Range $67.31 - $92.03

Q1 2022

Shares 611,195 Value ($000) $53,235 Avg Close $87.37 Range $71.85 - $99.00

Q4 2021

Shares 277,285 Value ($000) $25,587 Avg Close $91.39 Range $83.90 - $104.21

Q2 2021

Shares 25,103 Value ($000) $2,663 Avg Close $108.58 Range $93.16 - $122.33

Q1 2021

Shares 15,089 Value ($000) $1,414 Avg Close $85.57 Range $67.05 - $99.38

Q4 2019

Shares 1,562 Value ($000) $100 Avg Close $65.85 Range $59.85 - $73.71

Q3 2018

Shares 8,215 Value ($000) $367 Avg Close $46.29 Range $40.20 - $53.45

Q1 2018

Shares 4,959 Value ($000) $233 Avg Close $50.70 Range $44.70 - $55.53

Q1 2015

Shares 34,532 Value ($000) $666 Avg Close $19.99 Range $16.00 - $22.79

Q2 2014

Shares 48,599 Value ($000) $1,498 Avg Close $37.68 Range $27.96 - $44.80

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	102,403	$22,259	$209.86	$182.34 - $233.14
Q2 2025	79,456	$13,542	$144.03	$99.70 - $172.71
Q1 2025	268,054	$31,285	$134.92	$106.45 - $166.95
Q4 2024	39,485	$5,375	$134.07	$118.86 - $150.12
Q3 2024	500,491	$61,610	$109.17	$89.96 - $127.97
Q2 2024	718,086	$76,828	$101.02	$82.29 - $113.12
Q1 2024	688,455	$64,198	$76.04	$60.96 - $94.82
Q4 2023	785,735	$59,496	$62.54	$44.65 - $76.56
Q3 2023	789,897	$56,849	$99.67	$71.61 - $123.33
Q2 2023	463,181	$54,641	$97.94	$84.80 - $118.32
Q1 2023	519,799	$49,090	$95.07	$84.89 - $103.50
Q4 2022	538,066	$45,913	$82.03	$62.36 - $96.54
Q3 2022	691,959	$43,940	$77.37	$62.64 - $86.57
Q2 2022	861,978	$61,770	$77.96	$67.31 - $92.03
Q1 2022	611,195	$53,235	$87.37	$71.85 - $99.00
Q4 2021	277,285	$25,587	$91.39	$83.90 - $104.21
Q2 2021	25,103	$2,663	$108.58	$93.16 - $122.33
Q1 2021	15,089	$1,414	$85.57	$67.05 - $99.38
Q4 2019	1,562	$100	$65.85	$59.85 - $73.71
Q3 2018	8,215	$367	$46.29	$40.20 - $53.45
Q1 2018	4,959	$233	$50.70	$44.70 - $55.53
Q1 2015	34,532	$666	$19.99	$16.00 - $22.79
Q2 2014	48,599	$1,498	$37.68	$27.96 - $44.80