MasTec
695 hedge funds and large institutions have $12.7B invested in MasTec in 2025 Q4 according to their latest regulatory filings, with 120 funds opening new positions, 242 increasing their positions, 227 reducing their positions, and 68 closing their positions.
76% more first-time investments, than exits
New positions opened: 120 | Existing positions closed: 68
6% more funds holding
Funds holding: 653 → 695 (+42)
1.73% more ownership
Funds ownership: 72.57% → 74.3% (+1.7%)
7% more repeat investments, than reductions
Existing positions increased: 242 | Existing positions reduced: 227
5% more capital invested
Capital invested by funds: $12.2B → $12.7B (+$568M)
0% more funds holding in top 10
Funds holding in top 10: 18 → 18 (0)
48% less call options, than puts
Call options by funds: $111M | Put options by funds: $214M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Victory Capital Management
San Antonio,
Texas
|
+$355M |
| 2 |
PP
Peconic Partners
New York
|
+$178M |
| 3 |
Coatue Management
New York
|
+$142M |
| 4 |
Bank of America
Charlotte,
North Carolina
|
+$85.8M |
| 5 |
Holocene Advisors
New York
|
+$85.8M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$133M |
| 2 |
Macquarie Group
Sydney, NSW 2000,
Australia
|
-$131M |
| 3 |
Ameriprise
Minneapolis,
Minnesota
|
-$79.4M |
| 4 |
MIM
Merewether Investment Management
Dallas,
Texas
|
-$62.6M |
| 5 |
Balyasny Asset Management
Chicago,
Illinois
|
-$61.1M |
MTZ Hedge Fund Activity: Q4 2025 in Review
695 of the 8,266 institutional investors tracked by Wall St. Rank reported a position in MasTec (MTZ) for Q4 2025, worth a combined $12.7B — up 4.7% from $12.2B a quarter earlier.
Buyers outnumbered sellers: 120 funds opened new MTZ positions and 68 closed out — a net gain of 52 holders — while 242 added to existing stakes and 227 trimmed.
The largest buyer was Victory Capital Management, adding an estimated $355M. The largest seller was BlackRock, cutting an estimated $133M.
- 695 institutional investors held MasTec (MTZ) as of Q4 2025, up from 653 in Q3 2025.
- Funds reported $12.7B of MasTec stock for Q4 2025, up 4.7% quarter-over-quarter.
- 120 funds opened new MasTec positions in Q4 2025 and 68 closed out, a net change of +52 holders.
- The largest MasTec buyer in Q4 2025 was Victory Capital Management, an estimated $355M added.
- The largest MasTec seller in Q4 2025 was BlackRock, an estimated $133M sold.
Based on aggregated 13F filings for Q4 2025.