Security record · archived quarter
MTZ
MasTec, Inc. · Industrials · Engineering & Construction
154Tracked holders
+7Δ holders
37.61MShares held
$12.07BReported value
+11New positions
−5Exits
Momentum inputs (comparable managers):
holder breadth +4.8% ·
share flow -1.4% ·
net new positions +3.9%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 152 | 0 | 38.87M | $16.18B | +9 | −8 |
| Q1 2026 | 154 | +7 | 37.61M | $12.07B | +11 | −5 |
| Q4 2025 | 146 | +4 | 41.17M | $8.95B | +5 | — |
| Q3 2025 | 18 | -2 | 22.22M | $4.73B | +1 | −4 |
| Q2 2025 | 18 | +2 | 21.57M | $3.68B | +2 | — |
| Q1 2025 | 13 | -1 | 6.17M | $714.27M | — | −1 |
| Q4 2024 | 14 | +2 | 7.54M | $1.03B | +2 | — |
| Q3 2024 | 11 | 0 | 5.95M | $732.85M | — | — |
| Q2 2024 | 11 | — | 5.85M | $625.58M | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 7.31M | +2.8% | $2.35B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 21 | Vanguard Capital Management Llc | 2.80M | — | $902.25M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | State Street Global Advisors ✦ (passive) | 1.87M | +2.4% | $601.59M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 23 | Victory Capital Management Inc | 1.59M | -39.6% | $512.38M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 24 | Lone Pine Capital ✦ | 1.53M | New | $492.60M | 3.9% | New | 1 | SEC ↗ |
| 25 | First Trust Advisors Lp | 1.41M | +7.6% | $454.16M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 1.37M | +12.4% | $441.49M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 1.37M | +12.4% | $441.49M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 28 | Bank Of America Corp /De/ | 1.33M | +6.0% | $427.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Bank Of America Corp /De/ | 1.33M | +6.0% | $427.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Bank Of America Corp /De/ | 1.33M | +6.0% | $427.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | Bank Of America Corp /De/ | 1.33M | +6.0% | $427.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Bank Of America Corp /De/ | 1.33M | +6.0% | $427.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 33 | Bank Of America Corp /De/ | 1.33M | +6.0% | $427.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 34 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 35 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 36 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 37 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 38 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 39 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 40 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 41 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 42 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 43 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 44 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 45 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 46 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 47 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 48 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 49 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 50 | Invesco Ltd. | 1.23M | -19.4% | $394.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 51 | Dimensional Fund Advisors Lp | 731.65K | -16.0% | $235.33M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 52 | Dimensional Fund Advisors Lp | 731.65K | -16.0% | $235.33M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 53 | Dimensional Fund Advisors Lp | 731.65K | -16.0% | $235.33M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 54 | Dimensional Fund Advisors Lp | 731.65K | -16.0% | $235.33M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 55 | Dimensional Fund Advisors Lp | 731.65K | -16.0% | $235.33M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 56 | Nordea Investment Management Ab | 733.63K | -36.2% | $228.75M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 57 | Nordea Investment Management Ab | 733.63K | -36.2% | $228.75M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 58 | Nordea Investment Management Ab | 733.63K | -36.2% | $228.75M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 59 | Nordea Investment Management Ab | 733.63K | -36.2% | $228.75M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 60 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 61 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 64 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 67 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 68 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 71 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Bank of New York Mellon Corp | 656.10K | +3.1% | $211.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | AQR Capital Management ✦ | 660.05K | -9.7% | $209.54M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 77 | AQR Capital Management ✦ | 660.05K | -9.7% | $209.54M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 78 | AQR Capital Management ✦ | 660.05K | -9.7% | $209.54M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 79 | AQR Capital Management ✦ | 660.05K | -9.7% | $209.54M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 80 | AQR Capital Management ✦ | 660.05K | -9.7% | $209.54M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 81 | AQR Capital Management ✦ | 660.05K | -9.7% | $209.54M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 82 | AQR Capital Management ✦ | 660.05K | -9.7% | $209.54M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 83 | AQR Capital Management ✦ | 660.05K | -9.7% | $209.54M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 84 | Canada Pension Plan Investment Board | 638.96K | +325.6% | $205.58M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 85 | Fidelity (FMR) ✦ | 627.90K | -5.5% | $202.02M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 86 | Fidelity (FMR) ✦ | 627.90K | -5.5% | $202.02M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 87 | Fidelity (FMR) ✦ | 627.90K | -5.5% | $202.02M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 88 | Fidelity (FMR) ✦ | 627.90K | -5.5% | $202.02M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 89 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 604.68K | +8.4% | $194.54M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 90 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 604.68K | +8.4% | $194.54M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 91 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 604.68K | +8.4% | $194.54M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 92 | Morgan Stanley ✦ | 586.74K | +19.8% | $188.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 93 | Morgan Stanley ✦ | 586.74K | +19.8% | $188.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 94 | Morgan Stanley ✦ | 586.74K | +19.8% | $188.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 95 | Morgan Stanley ✦ | 586.74K | +19.8% | $188.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 96 | Morgan Stanley ✦ | 586.74K | +19.8% | $188.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 97 | Morgan Stanley ✦ | 586.74K | +19.8% | $188.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 98 | Morgan Stanley ✦ | 586.74K | +19.8% | $188.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 99 | Morgan Stanley ✦ | 586.74K | +19.8% | $188.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 100 | Morgan Stanley ✦ | 586.74K | +19.8% | $188.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Lone Pine Capital | $492.60M | 3.9% |
Exited
| Capstone Investment Advisors… | $21.95M | was 0.2% |
| Norges Bank | $13.15M | was 0.0% |
| Group One Trading Llc | $1.06M | was 0.0% |
| Simplex Trading, Llc | $546,902 | was 0.0% |
| Mitsubishi UFJ Trust &… | $391,049 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 793 holders, 57.78M shares, $18.15B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Aug 13
SC 13D/A — MAS JOSE RAMON
7.7% of class · View original SEC filing ↗
Aug 13
SC 13D/A — MAS JORGE
14.8% of class · View original SEC filing ↗
Jul 29
SC 13G/A — BlackRock, Inc.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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