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MASTEC INC

MTZ

Holders

4

Combined Value

$784.59M

Combined Shares

2,438,578

Current Price

$362.97

52W High

$441.43

vs 52W High

−17.8%

Investor Activity Chart

Quarterly buys (▲) and sells (▼) by tracked investors. Click a marker to view that investor's portfolio; hover for details. Price line is implied from 13F filings (value ÷ shares), not market data.

$99.02$185.63$272.25$358.86Q4'24Q1'25Q2'25Q3'25Q4'25Q1'26Q4 2024 · implied price $136.14Q2 2025 · implied price $170.43Q3 2025 · implied price $212.81Q4 2025 · implied price $217.37Q1 2026 · implied price $321.74Jim Simons - Renaissance Technologies · bought 121,723 shares @ ~$136.14 · Q4 2024 (new position)Jim Simons - Renaissance Technologies · sold 121,723 shares @ ~$136.14 · Q1 2025 (sold out)Jim Simons - Renaissance Technologies · bought 66,323 shares @ ~$170.43 · Q2 2025 (new position)Daniel Loeb - Third Point · bought 725,000 shares @ ~$212.81 · Q3 2025 (new position)Jim Simons - Renaissance Technologies · sold 66,323 shares @ ~$170.43 · Q3 2025 (sold out)Philippe Laffont - Coatue Management · bought 677,909 shares @ ~$217.37 · Q4 2025 (new position)George Soros - Soros Fund Management · bought 14,704 shares @ ~$217.37 · Q4 2025 (new position)Daniel Loeb - Third Point · sold 725,000 shares @ ~$212.81 · Q4 2025 (sold out)Stephen Mandel - Lone Pine Capital · bought 1,531,050 shares @ ~$321.74 · Q1 2026 (new position)Daniel Loeb - Third Point · bought 320,000 shares @ ~$321.74 · Q1 2026 (new position)Philippe Laffont - Coatue Management · sold 94,312 shares @ ~$321.74 · Q1 2026George Soros - Soros Fund Management · sold 10,773 shares @ ~$321.74 · Q1 2026BUYSELLIMPLIED PRICE

Held By

Tracked investors currently holding this security, based on each investor's most recent 13F filing. Gain compares the current market price to each investor's estimated average buy price.

InvestorValue% of PortfolioAvg Buy PriceGainLast ActivityAs of
Stephen Mandel - Lone Pine Capital$492.60M3.93%~$321.74+12.8%BUY Q1 2026Q1 2026
Philippe Laffont - Coatue Management$187.77M0.65%~$217.37+67.0%SELL Q1 2026Q1 2026
Daniel Loeb - Third Point$102.96M4.94%~$321.74+12.8%BUY Q1 2026Q1 2026
George Soros - Soros Fund Management$1.26M0.01%~$217.37+67.0%SELL Q1 2026Q1 2026

Recent Activity

Latest position changes by tracked investors. Prices are estimates implied from 13F filings.

QuarterInvestorActionEst. ValueEst. Price
Q1 2026Stephen Mandel - Lone Pine CapitalNEW BUY+$492.60M~$321.74
Q1 2026Daniel Loeb - Third PointNEW BUY+$102.96M~$321.74
Q1 2026Philippe Laffont - Coatue ManagementSELL−$30.34M~$321.74
Q1 2026George Soros - Soros Fund ManagementSELL−$3.47M~$321.74
Q4 2025Daniel Loeb - Third PointSOLD OUT−$154.29M~$212.81
Q4 2025Philippe Laffont - Coatue ManagementNEW BUY+$147.36M~$217.37
Q4 2025George Soros - Soros Fund ManagementNEW BUY+$3.20M~$217.37
Q3 2025Daniel Loeb - Third PointNEW BUY+$154.29M~$212.81
Q3 2025Jim Simons - Renaissance TechnologiesSOLD OUT−$11.30M~$170.43
Q2 2025Jim Simons - Renaissance TechnologiesNEW BUY+$11.30M~$170.43
Q1 2025Jim Simons - Renaissance TechnologiesSOLD OUT−$16.57M~$136.14
Q4 2024Jim Simons - Renaissance TechnologiesNEW BUY+$16.57M~$136.14

Ownership History

Aggregate position across all tracked investors per quarter (options excluded). Implied price is the reported value divided by shares held.

PeriodHoldersTotal SharesΔ SharesTotal ValueImplied Price
Q1 202642,438,578+252.1%$784.59M$321.74
Q4 20252692,613-4.5%$150.55M$217.37
Q3 20251725,000+993.1%$154.29M$212.81
Q2 2025166,323-45.5%$11.30M$170.43
Q4 20241121,723—$16.57M$136.14