MasTec Ownership | Who Owns MasTec?


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MasTec Ownership Summary


MasTec is owned by 70.52% institutional investors, 21.74% insiders, and 7.75% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 9.35% of MTZ shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 2.54% of its assets in MasTec shares.

MTZ Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockMasTec70.52%21.74%7.75%
SectorIndustrials Stocks 50.81%11.74%37.45%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de7.29M9.35%$992.91M
Blackrock5.84M7.49%$624.79M
Vanguard group5.75M7.37%$783.36M
Hill city capital, lp2.13M2.73%$289.98M
Invesco2.01M2.57%$273.14M
Nordea investment management ab1.95M2.50%$265.36M
State street1.80M2.31%$192.52M
Pacer advisors1.68M2.16%$229.14M
Hood river capital management1.53M1.96%$208.44M
Millennium management1.46M1.87%$198.81M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
1060 capital100.00K26.98%$13.61M
Hill city capital, lp2.13M18.57%$289.98M
Legacy advisors818.65K10.81%$111.45M
Ack asset management531.80K9.70%$72.40M
Electron capital partners1.04M7.34%$141.16M
Kirr marbach & co llc /in/171.69K5.06%$23.37M
Decade renewable partners lp70.33K4.68%$9.58M
Muhlenkamp105.50K4.36%$14.36M
Jat capital mgmt lp173.81K3.74%$23.66M
Wolf hill capital management, lp373.96K3.66%$50.91M

Top Buyers

HolderShares% AssetsChange
Blackrock funding, inc. /de7.29M0.02%1.25M
Arrowstreet capital, limited partnership440.06K0.05%440.06K
First trust advisors lp587.79K0.07%373.14K
Balyasny asset management627.67K0.13%363.50K
Merewether investment management, lp342.38K1.86%342.38K

Top Sellers

HolderShares% AssetsChange
D1 capital partners---664.83K
Allspring global investments29.14K0.01%-592.50K
Pacer advisors1.68M0.49%-577.76K
Alyeska investment group118.61K0.06%-491.94K
Peconic partners---481.72K

New Positions

HolderShares% AssetsChangeValue
Arrowstreet capital, limited partnership440.06K0.05%440.06K$59.91M
Merewether investment management, lp342.38K1.86%342.38K$46.61M
Lord, abbett172.93K0.07%172.93K$23.54M
Cartenna capital, lp172.19K1.13%172.19K$23.44M
Bain capital public equity management ii158.95K0.98%158.95K$21.64M

Sold Out

HolderChange
Tfo-tdc-3.00
Claris advisors, llc / mo /-4.00
Plante moran financial advisors-6.00
Wetzel investment advisors-6.00
Trust co of vermont-19.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 20245082.42%55,033,010-4.52%701.29%27415.61%147-
Sep 30, 20244896.30%57,555,846-2.93%731.27%23311.48%145-8.23%
Jun 30, 202445711.46%59,279,1681.19%761.35%20612.57%15716.30%
Mar 31, 20244104.06%58,584,530-4.49%751.20%183-7.11%13517.39%
Dec 31, 2023394-1.25%61,337,3149.14%791.51%19715.20%115-20.69%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
iShares Core S&P Mid-Cap ETF2.01M2.54%3.55K
Vanguard US Total Market Shares ETF1.99M2.52%-42.56K
Vanguard Total Stock Mkt Idx Inv1.88M2.37%1.10K
Pacer US Cash Cows 100 ETF1.66M2.09%2.44K
Vanguard Small Cap Index1.52M1.91%1.24K
Nordea 1 - Global Climate & Envir BI EUR1.31M1.65%-20.73K
Vanguard Institutional Extnd Mkt Idx Tr934.95K1.18%3.65K
Hood River Small-Cap Growth Instl891.88K1.13%47.72K
Vanguard Small Cap Growth Index Inv852.48K1.08%-4.50K
Invesco Small Cap Value A768.25K0.97%-163.55K

Recent Insider Transactions


DateNameRoleActivityValue
Mar 24, 2025Csiszar Ernst N-Sell$331.32K
Dec 04, 2024Palomarez Javier Alberto-Sell$28.60K
Nov 26, 2024Apple Robert E COOSell$1.50M
Nov 26, 2024Campbell C Robert-Sell$435.00K
Nov 11, 2024Campbell C Robert-Sell$436.25K

Insider Transactions Trends


DateBuySell
2025 Q1-1
2024 Q4-14
2024 Q3-4
2024 Q2-4
2024 Q1--

MTZ Ownership FAQ


Who owns the most shares of MasTec?

MasTec’s largest shareholders are Blackrock funding, inc. /de (7.29M shares, 9.35%), Blackrock (5.84M shares, 7.49%), and Vanguard group (5.75M shares, 7.37%). Together, they hold 24.21% of MasTec’s total shares outstanding.

Does Blackrock own MasTec?

Yes, BlackRock owns 7.49% of MasTec, totaling 5.84M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 624.79M$. In the last quarter, BlackRock increased its holdings by 294.93K shares, a 5.32% change.

Who is MasTec’s biggest shareholder by percentage of total assets invested?

1060 capital is MasTec’s biggest shareholder by percentage of total assets invested, with 26.98% of its assets in 100K MasTec shares, valued at 13.61M$.

Who is the top mutual fund holder of MasTec shares?

iShares Core S&P Mid-Cap ETF is the top mutual fund holder of MasTec shares, with 2.54% of its total shares outstanding invested in 2.01M MasTec shares.

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