MASTEC INC (MTZ) Institutional Ownership and Insiders Activity
MASTEC INC (MTZ) is widely held by institutional investors, with 886 firms reporting positions valued at approximately $24.38B based on SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is the largest disclosed holder, reporting approximately $3.18B in MTZ holdings in its latest filing.
Recent insider activity includes 12 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.
Institutional Holders
886
Total Reported Value
$24.38B
Largest Holder
Blackrock, Inc.
Largest Position
$3.18B
Insider Transactions (90d)
12
Latest Filing Quarter
Q2 2026
New Institutional Positions
1
Funds Exiting Positions
872
Top Institutional Owners
View all- Blackrock, Inc.$3.18B
- Peconic Partners Llc$1.53B
- Vanguard Capital Management Llc$1.18B
- Vanguard Portfolio Management Llc$1.17B
- State Street Corp$933.96M
MTZ News
All news- Newbrook Capital Advisors Lp Portfolio Shifts: Q2 2026 Focus on Technology & Financial Services
Aug 20, 2026 · valut.ai
- Peconic Partners Llc Portfolio Analysis: Q3 2026 Investment Activity
Aug 18, 2026 · valut.ai
- Hillman Co Portfolio Analysis: Q2 2026 Investment Activity Revealed
Jul 28, 2026 · valut.ai
- Hennessy Advisors Inc Q2 2026 Portfolio Activity: Strategic Buys and Sells in Tech, Energy
Jul 18, 2026 · valut.ai
- Kirr Marbach & Co Llc Activity Analysis: Q2 2026 Portfolio Changes
Jul 16, 2026 · valut.ai
Related MTZ Institutional Insights:
- MTZ 13F Institutional Holders
- MTZ Top Institutional Shareholders
- MTZ Institutional Ownership Changes
- Industrials Sector Institutional Ownership
- Industrials Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Industrials Stocks By Institutional Investors
- Most Sold Industrials Stocks By Institutional Investors
- MTZ Insider Trading & SEC Form 4 Activity
- MTZ Articles
- Top Institutional Investor Stock Rankings