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As of the latest SEC filings, MASTEC INC (MTZ) is held by 491 institutional funds. The largest fund shareholder is iShares Core S&P Mid-Cap ETF (IJH), holding an estimated $653,400,531.16 in market value, representing 0.62% of its portfolio.

Funds holding MASTEC INC (MTZ)

Source: SEC Form N-PORT institutional portfolio disclosures

Ticker:
MTZ
CIK:
0000015615
Showing top 25 of 491 institutional funds
Fund Type Manager Weight Market Value Shares
Report Date
Filing Date
IJH
iShares Core S&P Mid-Cap ETF
ETF BlackRock / iShares 0.62% $653,400,531.16 2,030,834 Mar 31, 2026 May 26, 2026
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
ETF Vanguard 0.03% $644,126,053.92 2,002,008 Mar 31, 2026 May 28, 2026
NAESX
VANGUARD SMALL-CAP INDEX FUND
ETF Vanguard 0.28% $468,248,813.36 1,455,364 Mar 31, 2026 May 28, 2026
AIRR
First Trust RBA American Industrial Renaissance ETF
ETF First Trust 4.65% $389,570,513.76 1,210,824 Mar 31, 2026 May 21, 2026
VISGX
VANGUARD SMALL-CAP GROWTH INDEX FUND
ETF Vanguard 0.68% $261,965,855.84 814,216 Mar 31, 2026 May 28, 2026
HRSMX
Hood River Small-Cap Growth Fund
MF Independent / Boutique 4.46% $232,010,253.14 721,111 Mar 31, 2026 May 29, 2026
VEMPX
VANGUARD EXTENDED MARKET INDEX FUND
ETF Vanguard 0.27% $220,193,708.16 684,384 Mar 31, 2026 May 28, 2026
PYODX
Victory Pioneer Fund
MF Independent / Boutique 1.83% $183,229,643.04 569,496 Mar 31, 2026 May 28, 2026
OEGAX
Invesco Discovery Mid Cap Growth Fund
MF Invesco 2.54% $170,670,936.00 433,120 Apr 30, 2026 Jun 26, 2026
PAVE
Global X U.S. Infrastructure Development ETF
ETF Independent / Boutique 1.30% $161,499,422.20 541,908 Feb 28, 2026 Apr 29, 2026
XMMO
Invesco S&P MidCap Momentum ETF
ETF Invesco 2.26% $153,852,487.95 390,439 Apr 30, 2026 Jun 26, 2026
MDY
SPDR S&P MidCap 400 ETF Trust
ETF State Street (SPDR) 0.61% $148,742,332.44 462,306 Mar 31, 2026 Jun 1, 2026
IJK
iShares S&P Mid-Cap 400 Growth ETF
ETF BlackRock / iShares 1.21% $119,991,967.78 372,947 Mar 31, 2026 May 28, 2026
FSMAX
Fidelity Extended Market Index Fund
MF Fidelity 0.24% $96,511,392.84 323,842 Feb 28, 2026 Apr 24, 2026
SPMD
State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF
ETF State Street (SPDR) 0.62% $96,412,286.66 299,659 Mar 31, 2026 May 28, 2026
FSMDX
Fidelity Mid Cap Index Fund
MF Fidelity 0.18% $90,779,268.75 230,375 Apr 30, 2026 Jun 26, 2026
HFMDX
Hennessy Cornerstone Mid Cap 30 Fund
MF Independent / Boutique 6.28% $80,819,655.00 205,100 Apr 30, 2026 Jun 25, 2026
IWR
iShares Russell Mid-Cap ETF
ETF BlackRock / iShares 0.16% $76,520,711.16 237,834 Mar 31, 2026 May 28, 2026
FZFLX
Fidelity SAI Small-Mid Cap Momentum Index Fund
MF Fidelity 1.38% $58,960,519.35 149,627 Apr 30, 2026 Jun 26, 2026
DEVIX
Nomura Small Cap Value Fund
MF Independent / Boutique 1.61% $58,537,684.44 196,422 Feb 27, 2026 Apr 23, 2026
SCHM
Schwab U.S. Mid-Cap ETF
ETF Charles Schwab 0.36% $49,447,478.40 165,920 Feb 28, 2026 Apr 24, 2026
FTRNX
Fidelity Trend Fund
MF Fidelity 1.12% $46,394,908.00 144,200 Mar 31, 2026 May 26, 2026
THRO
iShares U.S. Thematic Rotation Active ETF
ETF BlackRock / iShares 0.56% $46,174,384.95 117,179 Apr 30, 2026 Jun 25, 2026
FAGKX
Fidelity Growth Strategies Fund
MF Fidelity 1.03% $42,252,977.58 141,779 Feb 28, 2026 Apr 24, 2026
LACAX
Columbia Acorn Fund
MF Columbia Threadneedle 1.88% $42,205,531.46 131,179 Mar 31, 2026 May 28, 2026
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