Cliff Asness's MTZ Position Overview
Cliff Asness (via Aqr Capital Management LLC) currently holds 730,979 shares of MasTec, Inc. (MTZ) worth $158.89 M, representing 0.08% of the portfolio. First purchased in 2012-Q4, this long-term strategic position has been held for 49 quarters.
Based on 13F filings since 2013, Cliff Asness has maintained a long-term strategic position in MTZ, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2019, adding 462,214 shares. Largest reduction occurred in Q3 2020, reducing 565,863 shares.
Analysis based on 13F filings available since 2013 Q2
Cliff Asness's MasTec (MTZ) Holding Value Over Time
Track share changes against reported price movement
Quarterly MasTec (MTZ) Trades by Cliff Asness
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -169,505 | Reduce 18.82% | 730,979 | $217.37 |
| Q3 2025 | -171,769 | Reduce 16.02% | 900,484 | $210.10 |
| Q2 2025 | +108,504 | Add 11.26% | 1.07 M | $169.70 |
| Q1 2025 | +184,277 | Add 23.64% | 963,749 | $110.23 |
| Q4 2024 | +91,564 | Add 13.31% | 779,472 | $136.14 |
| Q3 2024 | +425,404 | Add 162.06% | 687,908 | $123.10 |
| Q2 2024 | +255,088 | Add 3439.70% | 262,504 | $106.99 |
| Q1 2024 | +849 | Add 12.93% | 7,416 | $93.25 |
| Q4 2023 | -1,108 | Reduce 14.44% | 6,567 | $75.72 |
| Q3 2023 | +20 | Add 0.26% | 7,675 | $71.97 |
| Q2 2023 | -5,297 | Reduce 40.90% | 7,655 | $117.09 |
| Q1 2023 | -49,256 | Reduce 79.18% | 12,952 | $93.85 |
| Q4 2022 | -55,329 | Reduce 47.07% | 62,208 | $83.87 |
| Q3 2022 | -48,191 | Reduce 29.08% | 117,537 | $63.50 |
| Q2 2022 | +68,008 | Add 69.59% | 165,728 | $70.30 |
| Q1 2022 | -16,953 | Reduce 14.78% | 97,720 | $86.43 |
| Q4 2021 | -37,150 | Reduce 24.47% | 114,673 | $92.22 |
| Q3 2021 | +74,286 | Add 95.81% | 151,823 | $86.28 |
| Q2 2021 | +39,053 | Add 101.48% | 77,537 | $105.68 |
| Q1 2021 | -53,681 | Reduce 58.24% | 38,484 | $90.64 |
| Q4 2020 | -499,856 | Reduce 84.43% | 92,165 | $68.18 |
| Q3 2020 | -565,863 | Reduce 48.87% | 592,021 | $42.20 |
| Q2 2020 | -106,892 | Reduce 8.45% | 1.16 M | $44.31 |
| Q1 2020 | +360,770 | Add 39.91% | 1.26 M | $31.13 |
| Q4 2019 | +462,214 | Add 104.62% | 904,006 | $64.16 |
| Q3 2019 | +172,485 | Add 64.05% | 441,792 | $64.62 |
| Q2 2019 | +242,077 | Add 889.01% | 269,307 | $49.53 |
| Q1 2019 | +27,230 | New Buy | 27,230 | $48.11 |
| Q3 2018 | -9,406 | Sold Out | 0 | $0.00 |
| Q2 2018 | -18,787 | Reduce 66.64% | 9,406 | $50.71 |
| Q1 2018 | -54,957 | Reduce 66.09% | 28,193 | $47.03 |
| Q4 2017 | -11,369 | Reduce 12.03% | 83,150 | $48.95 |
| Q3 2017 | -47,144 | Reduce 33.28% | 94,519 | $46.40 |
| Q2 2017 | -13,260 | Reduce 8.56% | 141,663 | $45.15 |
| Q1 2017 | +10,442 | Add 7.23% | 154,923 | $40.05 |
| Q4 2016 | +4,528 | Add 3.24% | 144,481 | $38.25 |
| Q3 2016 | +77,568 | Add 124.34% | 139,953 | $29.74 |
| Q2 2016 | +62,385 | New Buy | 62,385 | $22.31 |
| Q1 2016 | -18,527 | Sold Out | 0 | $0.00 |
| Q4 2015 | -1,183 | Reduce 6.00% | 18,527 | $17.38 |
| Q3 2015 | +19,710 | New Buy | 19,710 | $15.83 |
| Q4 2014 | -74,136 | Sold Out | 0 | $0.00 |
| Q3 2014 | -40,174 | Reduce 35.14% | 74,136 | $30.62 |
| Q2 2014 | +114,310 | New Buy | 114,310 | $30.82 |
| Q4 2013 | -13,951 | Sold Out | 0 | $0.00 |
| Q3 2013 | +956 | Add 7.36% | 13,951 | $30.32 |
| Q2 2013 | +12,995 | Add 0.00% | 12,995 | $32.94 |
| Q4 2012 | +137,677 | Add 0.00% | 137,677 | $24.93 |
Cliff Asness's MasTec Investment FAQs
Cliff Asness first purchased MasTec, Inc. (MTZ) in Q4 2012, acquiring 137,677 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Cliff Asness has held MasTec, Inc. (MTZ) for 49 quarters since Q4 2012.
Cliff Asness's largest addition to MasTec, Inc. (MTZ) was in Q4 2019, adding 904,006 shares worth $58 M.
According to the latest 13F filing for Q4 2025, Cliff Asness's firm, Aqr Capital Management LLC, owns 730,979 shares of MasTec, Inc. (MTZ), valued at approximately $158.89 M.
As of the Q4 2025 filing, MasTec, Inc. (MTZ) represents approximately 0.08% of Cliff Asness's publicly disclosed stock portfolio, making it one of their key holdings.
Cliff Asness's peak holding in MasTec, Inc. (MTZ) was 1,264,776 shares, as reported at the end of Q1 2020.