Daniel Loeb acquired 320k Mastec shares worth $116M. That's 5.53% of their entire equity portfolio (5th largest holding). Daniel Loeb started to build up the position in Mastec in Q3 2025 and continued to invest until Q4 2025. Since then they sold 605k shares. The stake costed the investor $60.4M, netting the investor a gain of 93% so far.