Security record · archived quarter
MTZ
MasTec, Inc. · Industrials · Engineering & Construction
18Tracked holders
-2Δ holders
22.22MShares held
$4.73BReported value
+1New positions
−4Exits
Momentum inputs (comparable managers):
holder breadth -10.0% ·
share flow -2.2% ·
net new positions -16.7%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
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 · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 7.74M | -5.2% | $1.65B | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 6.01M | +0.6% | $1.28B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 6.01M | +0.6% | $1.28B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | The Vanguard Group ✦ (passive) | 6.01M | +0.6% | $1.28B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | The Vanguard Group ✦ (passive) | 6.01M | +0.6% | $1.28B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | The Vanguard Group ✦ (passive) | 6.01M | +0.6% | $1.28B | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | State Street Global Advisors ✦ (passive) | 1.84M | -1.9% | $390.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 1.13M | +2.2% | $239.74M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 27 | Geode Capital Management ✦ (passive) | 1.13M | +2.2% | $239.74M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 28 | AQR Capital Management ✦ | 900.48K | -16.0% | $189.19M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 29 | AQR Capital Management ✦ | 900.48K | -16.0% | $189.19M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 30 | AQR Capital Management ✦ | 900.48K | -16.0% | $189.19M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 31 | AQR Capital Management ✦ | 900.48K | -16.0% | $189.19M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 32 | AQR Capital Management ✦ | 900.48K | -16.0% | $189.19M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 33 | AQR Capital Management ✦ | 900.48K | -16.0% | $189.19M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 34 | Millennium Management ✦ | 833.40K | -22.7% | $177.36M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 35 | Third Point ✦ | 725.00K | New | $154.29M | 1.8% | New | 1 | SEC ↗ |
| 36 | Point72 Asset Management ✦ | 658.20K | -26.5% | $140.07M | 0.3% | ▼ Trim | 6 | SEC ↗ |
| 37 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Morgan Stanley ✦ | 468.27K | — | $99.65M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Fidelity (FMR) ✦ | 465.60K | +9085.3% | $99.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Fidelity (FMR) ✦ | 465.60K | +9085.3% | $99.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Fidelity (FMR) ✦ | 465.60K | +9085.3% | $99.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 52 | Fidelity (FMR) ✦ | 465.60K | +9085.3% | $99.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 53 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | JPMorgan Chase ✦ | 423.39K | — | $90.10M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Goldman Sachs Group ✦ | 324.28K | — | $69.01M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Goldman Sachs Group ✦ | 324.28K | — | $69.01M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Goldman Sachs Group ✦ | 324.28K | — | $69.01M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Gotham Asset Management ✦ | 211.35K | -10.0% | $44.98M | 0.2% | ▼ Trim | 6 | SEC ↗ |
| 75 | D. E. Shaw & Co. ✦ | 190.87K | -43.9% | $40.62M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 76 | D. E. Shaw & Co. ✦ | 190.87K | -43.9% | $40.62M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 77 | Arrowstreet Capital ✦ | 186.02K | -48.9% | $39.59M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 78 | Citadel Advisors ✦ | 61.98K | -28.1% | $13.19M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 79 | T. Rowe Price ✦ | 51.15K | +7.1% | $10.88M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 80 | Two Sigma Investments ✦ | 10.09K | -88.5% | $2.15M | 0.0% | ▼ Trim | 6 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Third Point | $154.29M | 1.8% |
Exited
| Marshall Wace | $13.54M | was 0.0% |
| Norges Bank | $12.50M | was 0.0% |
| Renaissance Technologies | $11.30M | was 0.0% |
| Bridgewater Associates | $5.23M | 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: Q3 2025 ·
Methodology ·
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