MasTec
653 hedge funds and large institutions have $12.2B invested in MasTec in 2025 Q3 according to their latest regulatory filings, with 140 funds opening new positions, 202 increasing their positions, 224 reducing their positions, and 74 closing their positions.
89% more first-time investments, than exits
New positions opened: 140 | Existing positions closed: 74
38% more funds holding in top 10
Funds holding in top 10: 13 → 18 (+5)
28% more capital invested
Capital invested by funds: $9.5B → $12.2B (+$2.67B)
10% more funds holding
Funds holding: 593 → 653 (+60)
1.91% more ownership
Funds ownership: 70.66% → 72.57% (+1.9%)
4% less call options, than puts
Call options by funds: $116M | Put options by funds: $121M
10% less repeat investments, than reductions
Existing positions increased: 202 | Existing positions reduced: 224
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Victory Capital Management
San Antonio,
Texas
|
+$172M |
| 2 |
PP
Peconic Partners
New York
|
+$137M |
| 3 |
TP
Third Point
New York
|
+$133M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$84.3M |
| 5 |
FACM
Forest Avenue Capital Management
Miami,
Florida
|
+$77.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Goldman Sachs
New York
|
-$91.4M |
| 2 |
BlackRock
New York
|
-$77.1M |
| 3 |
CCPM
Cooper Creek Partners Management
New York
|
-$55.5M |
| 4 |
CC
Cartenna Capital
Stamford,
Connecticut
|
-$51.1M |
| 5 |
Millennium Management
New York
|
-$44.8M |
MTZ Hedge Fund Activity: Q3 2025 in Review
653 of the 7,638 institutional investors tracked by Wall St. Rank reported a position in MasTec (MTZ) for Q3 2025, worth a combined $12.2B — up 28% from $9.5B a quarter earlier.
Buyers outnumbered sellers: 140 funds opened new MTZ positions and 74 closed out — a net gain of 66 holders — while 202 added to existing stakes and 224 trimmed.
The largest buyer was Victory Capital Management, adding an estimated $172M. The largest seller was Goldman Sachs, cutting an estimated $91.4M.
- 653 institutional investors held MasTec (MTZ) as of Q3 2025, up from 593 in Q2 2025.
- Funds reported $12.2B of MasTec stock for Q3 2025, up 28% quarter-over-quarter.
- 140 funds opened new MasTec positions in Q3 2025 and 74 closed out, a net change of +66 holders.
- The largest MasTec buyer in Q3 2025 was Victory Capital Management, an estimated $172M added.
- The largest MasTec seller in Q3 2025 was Goldman Sachs, an estimated $91.4M sold.
Based on aggregated 13F filings for Q3 2025.